+2005-10-25 Arnold Metselaar <arnold.metselaar@planet.nl>
+
+ * Makefile.am: Add rules for coff-z80 and cpu-z80.
+ * Makefile.in: Regenerated.
+ * archures.c: Add bfd_arch_z80 and support for it.
+ * coffcode.h(coff_set_arch_mach_hook): Add case Z80MAGIC.
+ (coff_set_flags): Add case bfd_arch_z80.
+ * config.bfd: Add z80coff_vec.
+ * configure.in: Add z80coff_vec.
+ * reloc.c: Add BFD_RELOC_Z80_DISP8
+ * targets.c: Add z80coff_vec.
+ * coff-z80.c: New file
+ * cpu-z80.c: New file
+ * configure: Regenerated.
+ * libbfd.h: Regenerated.
+ * bfd-in2.h: Regenerated.
+
2005-10-26 Alan Modra <amodra@bigpond.net.au>
PR ld/1540
cpu-w65.lo \
cpu-xstormy16.lo \
cpu-xtensa.lo \
+ cpu-z80.lo \
cpu-z8k.lo
ALL_MACHINES_CFILES = \
cpu-w65.c \
cpu-xstormy16.c \
cpu-xtensa.c \
+ cpu-z80.c \
cpu-z8k.c
# The .o files needed by all of the 32 bit vectors that are configured into
coff-u68k.lo \
coff-we32k.lo \
coff-w65.lo \
+ coff-z80.lo \
coff-z8k.lo \
cofflink.lo \
dwarf1.lo \
coff-u68k.c \
coff-we32k.c \
coff-w65.c \
+ coff-z80.c \
coff-z8k.c \
cofflink.c \
dwarf1.c \
$(INCDIR)/filenames.h $(INCDIR)/hashtab.h
cpu-xtensa.lo: cpu-xtensa.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
$(INCDIR)/hashtab.h
+cpu-z80.lo: cpu-z80.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
+ $(INCDIR)/hashtab.h
cpu-z8k.lo: cpu-z8k.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
$(INCDIR)/hashtab.h
aout-adobe.lo: aout-adobe.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
$(INCDIR)/hashtab.h $(INCDIR)/bfdlink.h $(INCDIR)/coff/w65.h \
$(INCDIR)/coff/external.h $(INCDIR)/coff/internal.h \
libcoff.h coffcode.h coffswap.h
+coff-z80.lo: coff-z80.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
+ $(INCDIR)/hashtab.h $(INCDIR)/bfdlink.h $(INCDIR)/coff/z80.h \
+ $(INCDIR)/coff/external.h $(INCDIR)/coff/internal.h \
+ libcoff.h coffcode.h coffswap.h
coff-z8k.lo: coff-z8k.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
$(INCDIR)/hashtab.h $(INCDIR)/bfdlink.h $(INCDIR)/coff/z8k.h \
$(INCDIR)/coff/external.h $(INCDIR)/coff/internal.h \
cpu-w65.lo \
cpu-xstormy16.lo \
cpu-xtensa.lo \
+ cpu-z80.lo \
cpu-z8k.lo
ALL_MACHINES_CFILES = \
cpu-w65.c \
cpu-xstormy16.c \
cpu-xtensa.c \
+ cpu-z80.c \
cpu-z8k.c
coff-u68k.lo \
coff-we32k.lo \
coff-w65.lo \
+ coff-z80.lo \
coff-z8k.lo \
cofflink.lo \
dwarf1.lo \
coff-u68k.c \
coff-we32k.c \
coff-w65.c \
+ coff-z80.c \
coff-z8k.c \
cofflink.c \
dwarf1.c \
$(INCDIR)/filenames.h $(INCDIR)/hashtab.h
cpu-xtensa.lo: cpu-xtensa.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
$(INCDIR)/hashtab.h
+cpu-z80.lo: cpu-z80.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
+ $(INCDIR)/hashtab.h
cpu-z8k.lo: cpu-z8k.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
$(INCDIR)/hashtab.h
aout-adobe.lo: aout-adobe.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
$(INCDIR)/hashtab.h $(INCDIR)/bfdlink.h $(INCDIR)/coff/w65.h \
$(INCDIR)/coff/external.h $(INCDIR)/coff/internal.h \
libcoff.h coffcode.h coffswap.h
+coff-z80.lo: coff-z80.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
+ $(INCDIR)/hashtab.h $(INCDIR)/bfdlink.h $(INCDIR)/coff/z80.h \
+ $(INCDIR)/coff/external.h $(INCDIR)/coff/internal.h \
+ libcoff.h coffcode.h coffswap.h
coff-z8k.lo: coff-z8k.c ./bfd.h ./config.h $(INCDIR)/filenames.h \
$(INCDIR)/hashtab.h $(INCDIR)/bfdlink.h $(INCDIR)/coff/z8k.h \
$(INCDIR)/coff/external.h $(INCDIR)/coff/internal.h \
. bfd_arch_maxq, {* Dallas MAXQ 10/20 *}
.#define bfd_mach_maxq10 10
.#define bfd_mach_maxq20 20
+. bfd_arch_z80,
+.#define bfd_mach_z80strict 1 {* No undocumented opcodes. *}
+.#define bfd_mach_z80 3 {* With ixl, ixh, iyl, and iyh. *}
+.#define bfd_mach_z80full 7 {* All undocumented instructions. *}
+.#define bfd_mach_r800 11 {* R800: successor with multiplication. *}
. bfd_arch_last
. };
*/
extern const bfd_arch_info_type bfd_w65_arch;
extern const bfd_arch_info_type bfd_xstormy16_arch;
extern const bfd_arch_info_type bfd_xtensa_arch;
+extern const bfd_arch_info_type bfd_z80_arch;
extern const bfd_arch_info_type bfd_z8k_arch;
static const bfd_arch_info_type * const bfd_archures_list[] =
&bfd_we32k_arch,
&bfd_xstormy16_arch,
&bfd_xtensa_arch,
+ &bfd_z80_arch,
&bfd_z8k_arch,
#endif
0
bfd_arch_maxq, /* Dallas MAXQ 10/20 */
#define bfd_mach_maxq10 10
#define bfd_mach_maxq20 20
+ bfd_arch_z80,
+#define bfd_mach_z80strict 1 /* No undocumented opcodes. */
+#define bfd_mach_z80 3 /* With ixl, ixh, iyl, and iyh. */
+#define bfd_mach_z80full 7 /* All undocumented instructions. */
+#define bfd_mach_r800 11 /* R800: successor with multiplication. */
bfd_arch_last
};
BFD_RELOC_XTENSA_ASM_EXPAND. */
BFD_RELOC_XTENSA_ASM_SIMPLIFY,
+/* 8 bit signed offset in (ix+d) or (iy+d). */
+ BFD_RELOC_Z80_DISP8,
+
/* DJNZ offset. */
BFD_RELOC_Z8K_DISP7,
--- /dev/null
+/* BFD back-end for Zilog Z80 COFF binaries.
+ Copyright 2005 Free Software Foundation, Inc.
+ Contributed by Arnold Metselaar <arnold_m@operamail.com>
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "bfdlink.h"
+#include "coff/z80.h"
+#include "coff/internal.h"
+#include "libcoff.h"
+
+#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 0
+
+static reloc_howto_type r_imm32 =
+HOWTO (R_IMM32, 0, 1, 32, FALSE, 0,
+ complain_overflow_dont, 0, "r_imm32", TRUE, 0xffffffff, 0xffffffff,
+ FALSE);
+
+static reloc_howto_type r_imm16 =
+HOWTO (R_IMM16, 0, 1, 16, FALSE, 0,
+ complain_overflow_dont, 0, "r_imm16", TRUE, 0x0000ffff, 0x0000ffff,
+ FALSE);
+
+static reloc_howto_type r_imm8 =
+HOWTO (R_IMM8, 0, 0, 8, FALSE, 0,
+ complain_overflow_bitfield, 0, "r_imm8", TRUE, 0x000000ff, 0x000000ff,
+ FALSE);
+
+static reloc_howto_type r_jr =
+HOWTO (R_JR, 0, 0, 8, TRUE, 0,
+ complain_overflow_signed, 0, "r_jr", FALSE, 0, 0xFF,
+ FALSE);
+
+static reloc_howto_type r_off8 =
+HOWTO (R_OFF8, 0, 0, 8, FALSE, 0,
+ complain_overflow_signed, 0,"r_off8", FALSE, 0, 0xff,
+ FALSE);
+
+
+#define BADMAG(x) Z80BADMAG(x)
+#define Z80 1 /* Customize coffcode.h. */
+#define __A_MAGIC_SET__
+
+/* Code to swap in the reloc. */
+
+#define SWAP_IN_RELOC_OFFSET H_GET_32
+#define SWAP_OUT_RELOC_OFFSET H_PUT_32
+
+#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
+ dst->r_stuff[0] = 'S'; \
+ dst->r_stuff[1] = 'C';
+
+/* Code to turn a r_type into a howto ptr, uses the above howto table. */
+
+static void
+rtype2howto (arelent *internal, struct internal_reloc *dst)
+{
+ switch (dst->r_type)
+ {
+ default:
+ abort ();
+ break;
+ case R_IMM8:
+ internal->howto = &r_imm8;
+ break;
+ case R_IMM16:
+ internal->howto = &r_imm16;
+ break;
+ case R_IMM32:
+ internal->howto = &r_imm32;
+ break;
+ case R_JR:
+ internal->howto = &r_jr;
+ break;
+ case R_OFF8:
+ internal->howto = &r_off8;
+ break;
+ }
+}
+
+#define RTYPE2HOWTO(internal, relocentry) rtype2howto (internal, relocentry)
+
+static reloc_howto_type *
+coff_z80_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
+{
+ switch (code)
+ {
+ case BFD_RELOC_8: return & r_imm8;
+ case BFD_RELOC_16: return & r_imm16;
+ case BFD_RELOC_32: return & r_imm32;
+ case BFD_RELOC_8_PCREL: return & r_jr;
+ case BFD_RELOC_Z80_DISP8: return & r_off8;
+ default: BFD_FAIL ();
+ return NULL;
+ }
+}
+
+/* Perform any necessary magic to the addend in a reloc entry. */
+
+#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
+ cache_ptr->addend = ext_reloc.r_offset;
+
+#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
+ reloc_processing(relent, reloc, symbols, abfd, section)
+
+static void
+reloc_processing (arelent *relent,
+ struct internal_reloc *reloc,
+ asymbol **symbols,
+ bfd *abfd,
+ asection *section)
+{
+ relent->address = reloc->r_vaddr;
+ rtype2howto (relent, reloc);
+
+ if (reloc->r_symndx > 0)
+ relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
+ else
+ relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
+
+ relent->addend = reloc->r_offset;
+ relent->address -= section->vma;
+}
+
+static void
+extra_case (bfd *in_abfd,
+ struct bfd_link_info *link_info,
+ struct bfd_link_order *link_order,
+ arelent *reloc,
+ bfd_byte *data,
+ unsigned int *src_ptr,
+ unsigned int *dst_ptr)
+{
+ asection * input_section = link_order->u.indirect.section;
+ int val;
+
+ switch (reloc->howto->type)
+ {
+ case R_OFF8:
+ val = bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section);
+ if (val>127 || val<-128) /* Test for overflow. */
+ {
+ if (! ((*link_info->callbacks->reloc_overflow)
+ (link_info, NULL,
+ bfd_asymbol_name (*reloc->sym_ptr_ptr),
+ reloc->howto->name, reloc->addend, input_section->owner,
+ input_section, reloc->address)))
+ abort ();
+ }
+ bfd_put_8 (in_abfd, val, data + *dst_ptr);
+ (*dst_ptr) += 1;
+ (*src_ptr) += 1;
+ break;
+
+ case R_IMM8:
+ val = bfd_get_16 ( in_abfd, data+*src_ptr)
+ + bfd_coff_reloc16_get_value (reloc, link_info, input_section);
+ bfd_put_8 (in_abfd, val, data + *dst_ptr);
+ (*dst_ptr) += 1;
+ (*src_ptr) += 1;
+ break;
+
+ case R_IMM16:
+ val = bfd_get_16 ( in_abfd, data+*src_ptr)
+ + bfd_coff_reloc16_get_value (reloc, link_info, input_section);
+ bfd_put_16 (in_abfd, val, data + *dst_ptr);
+ (*dst_ptr) += 2;
+ (*src_ptr) += 2;
+ break;
+
+ case R_IMM32:
+ val = bfd_get_32 ( in_abfd, data+*src_ptr)
+ + bfd_coff_reloc16_get_value (reloc, link_info, input_section);
+ bfd_put_32 (in_abfd, val, data + *dst_ptr);
+ (*dst_ptr) += 4;
+ (*src_ptr) += 4;
+ break;
+
+ case R_JR:
+ {
+ bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section);
+ bfd_vma dot = (link_order->offset
+ + *dst_ptr
+ + input_section->output_section->vma);
+ int gap = dst - dot - 1; /* -1, Since the offset is relative
+ to the value of PC after reading
+ the offset. */
+
+ if (gap >= 128 || gap < -128)
+ {
+ if (! ((*link_info->callbacks->reloc_overflow)
+ (link_info, NULL,
+ bfd_asymbol_name (*reloc->sym_ptr_ptr),
+ reloc->howto->name, reloc->addend, input_section->owner,
+ input_section, reloc->address)))
+ abort ();
+ }
+ bfd_put_8 (in_abfd, gap, data + *dst_ptr);
+ (*dst_ptr)++;
+ (*src_ptr)++;
+ break;
+ }
+
+ default:
+ abort ();
+ }
+}
+
+#define coff_reloc16_extra_cases extra_case
+#define coff_bfd_reloc_type_lookup coff_z80_reloc_type_lookup
+
+#include "coffcode.h"
+
+#undef coff_bfd_get_relocated_section_contents
+#define coff_bfd_get_relocated_section_contents \
+ bfd_coff_reloc16_get_relocated_section_contents
+
+#undef coff_bfd_relax_section
+#define coff_bfd_relax_section bfd_coff_reloc16_relax_section
+
+CREATE_LITTLE_COFF_TARGET_VEC (z80coff_vec, "coff-z80", 0, 0, '\0', NULL,
+ COFF_SWAP_TABLE)
+
machine = 88100;
break;
#endif
+#ifdef Z80MAGIC
+ case Z80MAGIC:
+ arch = bfd_arch_z80;
+ switch (internal_f->f_flags & F_MACHMASK)
+ {
+ case 0:
+ case bfd_mach_z80strict << 12:
+ case bfd_mach_z80 << 12:
+ case bfd_mach_z80full << 12:
+ case bfd_mach_r800 << 12:
+ machine = ((unsigned)internal_f->f_flags & F_MACHMASK) >> 12;
+ break;
+ default:
+ return FALSE;
+ }
+ break;
+#endif
#ifdef Z8KMAGIC
case Z8KMAGIC:
arch = bfd_arch_z8k;
{
switch (bfd_get_arch (abfd))
{
+#ifdef Z80MAGIC
+ case bfd_arch_z80:
+ *magicp = Z80MAGIC;
+ switch (bfd_get_mach (abfd))
+ {
+ case 0:
+ case bfd_mach_z80strict:
+ case bfd_mach_z80:
+ case bfd_mach_z80full:
+ case bfd_mach_r800:
+ *flagsp = bfd_get_mach (abfd) << 12;
+ break;
+ default:
+ return FALSE;
+ }
+ return TRUE;
+#endif
+
#ifdef Z8KMAGIC
case bfd_arch_z8k:
*magicp = Z8KMAGIC;
x86_64) targ_archs=bfd_i386_arch ;;
xscale*) targ_archs=bfd_arm_arch ;;
xtensa*) targ_archs=bfd_xtensa_arch ;;
+z80|r800) targ_archs=bfd_z80_arch ;;
z8k*) targ_archs=bfd_z8k_arch ;;
am33_2.0) targ_archs=bfd_mn10300_arch ;;
*) targ_archs=bfd_${targ_cpu}_arch ;;
targ_selvecs=bfd_elf32_xtensa_be_vec
;;
+ z80-*-*)
+ targ_defvec=z80coff_vec
+ targ_underscore=no
+ ;;
+
z8k*-*-*)
targ_defvec=z8kcoff_vec
targ_underscore=yes
vms_vax_vec) tb="$tb vms.lo vms-hdr.lo vms-gsd.lo vms-tir.lo vms-misc.lo" ;;
w65_vec) tb="$tb coff-w65.lo reloc16.lo" ;;
we32kcoff_vec) tb="$tb coff-we32k.lo" ;;
+ z80coff_vec) tb="$tb coff-z80.lo reloc16.lo" ;;
z8kcoff_vec) tb="$tb coff-z8k.lo reloc16.lo cofflink.lo" ;;
# These appear out of order in targets.c
vms_vax_vec) tb="$tb vms.lo vms-hdr.lo vms-gsd.lo vms-tir.lo vms-misc.lo" ;;
w65_vec) tb="$tb coff-w65.lo reloc16.lo" ;;
we32kcoff_vec) tb="$tb coff-we32k.lo" ;;
+ z80coff_vec) tb="$tb coff-z80.lo reloc16.lo" ;;
z8kcoff_vec) tb="$tb coff-z8k.lo reloc16.lo cofflink.lo" ;;
# These appear out of order in targets.c
--- /dev/null
+/* BFD library support routines for the Z80 architecture.
+ Copyright 2005 Free Software Foundation, Inc.
+ Contributed by Arnold Metselaar <arnold_m@operamail.com>
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+
+const bfd_arch_info_type bfd_z80_arch;
+
+/* This routine is provided two arch_infos and
+ returns whether they'd be compatible. */
+
+static const bfd_arch_info_type *
+compatible (const bfd_arch_info_type *a, const bfd_arch_info_type *b)
+{
+ if (a->arch != b->arch)
+ return NULL;
+
+ if (a->mach == b->mach)
+ return a;
+
+ return (a->arch == bfd_arch_z80) ? & bfd_z80_arch : NULL;
+}
+
+#define N(name,print,default,next) \
+{ 16, 16, 8, bfd_arch_z80, name, "z80", print, 0, default, \
+ compatible, bfd_default_scan, next }
+
+#define M(n) &arch_info_struct[n]
+
+static const bfd_arch_info_type arch_info_struct[] =
+{
+ N (bfd_mach_z80strict, "z80-strict", FALSE, M(1)),
+ N (bfd_mach_z80, "z80", FALSE, M(2)),
+ N (bfd_mach_z80full, "z80-full", FALSE, M(3)),
+ N (bfd_mach_r800, "r800", FALSE, NULL)
+};
+
+const bfd_arch_info_type bfd_z80_arch = N (0, "z80-any", TRUE, M(0));
"BFD_RELOC_XTENSA_OP2",
"BFD_RELOC_XTENSA_ASM_EXPAND",
"BFD_RELOC_XTENSA_ASM_SIMPLIFY",
+ "BFD_RELOC_Z80_DISP8",
"BFD_RELOC_Z8K_DISP7",
"BFD_RELOC_Z8K_CALLR",
"BFD_RELOC_Z8K_IMM4L",
internally by the linker after analysis of a
BFD_RELOC_XTENSA_ASM_EXPAND.
+ENUM
+ BFD_RELOC_Z80_DISP8
+ENUMDOC
+ 8 bit signed offset in (ix+d) or (iy+d).
+
ENUM
BFD_RELOC_Z8K_DISP7
ENUMDOC
extern const bfd_target vms_vax_vec;
extern const bfd_target w65_vec;
extern const bfd_target we32kcoff_vec;
+extern const bfd_target z80coff_vec;
extern const bfd_target z8kcoff_vec;
/* These are always included. */
&vms_vax_vec,
&w65_vec,
&we32kcoff_vec,
+ &z80coff_vec,
&z8kcoff_vec,
&bfd_elf32_am33lin_vec,
#endif /* not SELECT_VECS */
+2005-10-25 Arnold Metselaar <arnold.metselaar@planet.nl>
+
+ * Makefile.am: Add Z80 cpu.
+ * Makefile.in: Regenerated.
+ * app.c (do_scrub_chars)<TC_Z80>: Correctly scrub "ex af,af'"
+ and disallow newlines in quoted strings.
+ * configure.tgt: Add z80-*-coff.
+ * config/obj-coff.h: Add format "coff-z80".
+ * doc/Makefile.am: Add c-z80.texi.
+ * doc/Makefile.in: Regenerated.
+ * doc/all.texi: Add Z80.
+ * doc/c-z80.texi: New file
+ * doc/as.texinfo: Add z80 options and some z80-related remarks.
+ * config/tc-z80.c: New file
+ * config/tc-z80.h: New file
+ * NEWS: Mention new support.
+
2005-10-25 H.J. Lu <hongjiu.lu@intel.com>
* write.c (adjust_reloc_syms): Undo the change made on
v850 \
xstormy16 \
xtensa \
+ z80 \
z8k
# Object format types. This is only used for dependency information.
config/tc-v850.c \
config/tc-xstormy16.c \
config/tc-xtensa.c \
+ config/tc-z80.c \
config/tc-z8k.c
TARGET_CPU_HFILES = \
config/tc-v850.h \
config/tc-xstormy16.h \
config/tc-xtensa.h \
+ config/tc-z80.h \
config/tc-z8k.h
# OBJ files in config
v850 \
xstormy16 \
xtensa \
+ z80 \
z8k
config/tc-v850.c \
config/tc-xstormy16.c \
config/tc-xtensa.c \
+ config/tc-z80.c \
config/tc-z8k.c
TARGET_CPU_HFILES = \
config/tc-v850.h \
config/tc-xstormy16.h \
config/tc-xtensa.h \
+ config/tc-z80.h \
config/tc-z8k.h
predicate.
15: After seeing a `(' at state 1, looking for a `)' as
predicate.
+#endif
+#ifdef TC_Z80
+ 16: After seeing an 'a' or an 'A' at the start of a symbol
+ 17: After seeing an 'f' or an 'F' in state 16
#endif
*/
state = 1;
PUT ('|');
continue;
+#endif
+#ifdef TC_Z80
+ case 16:
+ /* We have seen an 'a' at the start of a symbol, look for an 'f'. */
+ ch = GET ();
+ if (ch == 'f' || ch == 'F')
+ {
+ state = 17;
+ PUT (ch);
+ }
+ else
+ {
+ state = 9;
+ break;
+ }
+ case 17:
+ /* We have seen "af" at the start of a symbol,
+ a ' here is a part of that symbol. */
+ ch = GET ();
+ state = 9;
+ if (ch == '\'')
+ /* Change to avoid warning about unclosed string. */
+ PUT ('`');
+ else
+ UNGET (ch);
+ break;
#endif
}
break;
}
+#ifdef TC_Z80
+ /* "af'" is a symbol containing '\''. */
+ if (state == 3 && (ch == 'a' || ch == 'A'))
+ {
+ state = 16;
+ PUT (ch);
+ ch = GET ();
+ if (ch == 'f' || ch == 'F')
+ {
+ state = 17;
+ PUT (ch);
+ break;
+ }
+ else
+ {
+ state = 9;
+ if (!IS_SYMBOL_COMPONENT (ch))
+ {
+ UNGET (ch);
+ break;
+ }
+ }
+ }
+#endif
if (state == 3)
state = 9;
#define TARGET_FORMAT "coff-Intel-little"
#endif
+#ifdef TC_Z80
+#include "coff/z80.h"
+#define TARGET_FORMAT "coff-z80"
+#endif
+
#ifdef TC_Z8K
#include "coff/z8k.h"
#define TARGET_FORMAT "coff-z8k"
--- /dev/null
+/* tc-z80.c -- Assemble code for the Zilog Z80 and ASCII R800
+ Copyright 2005 Free Software Foundation, Inc.
+ Contributed by Arnold Metselaar <arnold_m@operamail.com>
+
+ This file is part of GAS, the GNU Assembler.
+
+ GAS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ GAS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GAS; see the file COPYING. If not, write to the Free
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#include "as.h"
+#include "listing.h"
+#include "bfd.h"
+#include "safe-ctype.h"
+#include "subsegs.h"
+#include "symbols.h"
+#include "libiberty.h"
+
+/* Exported constants. */
+const char comment_chars[] = ";\0";
+const char line_comment_chars[] = "#;\0";
+const char line_separator_chars[] = "\0";
+const char EXP_CHARS[] = "eE\0";
+const char FLT_CHARS[] = "RrFf\0";
+
+/* For machine specific options. */
+const char * md_shortopts = ""; /* None yet. */
+
+enum options
+{
+ OPTION_MACH_Z80 = OPTION_MD_BASE,
+ OPTION_MACH_R800,
+ OPTION_MACH_IUD,
+ OPTION_MACH_WUD,
+ OPTION_MACH_FUD,
+ OPTION_MACH_IUP,
+ OPTION_MACH_WUP,
+ OPTION_MACH_FUP
+};
+
+#define INS_Z80 1
+#define INS_UNDOC 2
+#define INS_UNPORT 4
+#define INS_R800 8
+
+struct option md_longopts[] =
+{
+ { "z80", no_argument, NULL, OPTION_MACH_Z80},
+ { "r800", no_argument, NULL, OPTION_MACH_R800},
+ { "ignore-undocumented-instructions", no_argument, NULL, OPTION_MACH_IUD },
+ { "Wnud", no_argument, NULL, OPTION_MACH_IUD },
+ { "warn-undocumented-instructions", no_argument, NULL, OPTION_MACH_WUD },
+ { "Wud", no_argument, NULL, OPTION_MACH_WUD },
+ { "forbid-undocumented-instructions", no_argument, NULL, OPTION_MACH_FUD },
+ { "Fud", no_argument, NULL, OPTION_MACH_FUD },
+ { "ignore-unportable-instructions", no_argument, NULL, OPTION_MACH_IUP },
+ { "Wnup", no_argument, NULL, OPTION_MACH_IUP },
+ { "warn-unportable-instructions", no_argument, NULL, OPTION_MACH_WUP },
+ { "Wup", no_argument, NULL, OPTION_MACH_WUP },
+ { "forbid-unportable-instructions", no_argument, NULL, OPTION_MACH_FUP },
+ { "Fup", no_argument, NULL, OPTION_MACH_FUP },
+
+ { NULL, no_argument, NULL, 0 }
+} ;
+
+size_t md_longopts_size = sizeof (md_longopts);
+
+extern int coff_flags;
+/* Instruction classes that silently assembled. */
+static int ins_ok = INS_Z80 | INS_UNDOC;
+/* Instruction classes that generate errors. */
+static int ins_err = INS_R800;
+/* Instruction classes actually used, determines machine type. */
+static int ins_used = INS_Z80;
+
+int
+md_parse_option (int c, char* arg ATTRIBUTE_UNUSED)
+{
+ switch (c)
+ {
+ default:
+ return 0;
+ case OPTION_MACH_Z80:
+ ins_ok &= ~INS_R800;
+ ins_err |= INS_R800;
+ break;
+ case OPTION_MACH_R800:
+ ins_ok = INS_Z80 | INS_UNDOC | INS_R800;
+ ins_err = INS_UNPORT;
+ break;
+ case OPTION_MACH_IUD:
+ ins_ok |= INS_UNDOC;
+ ins_err &= ~INS_UNDOC;
+ break;
+ case OPTION_MACH_IUP:
+ ins_ok |= INS_UNDOC | INS_UNPORT;
+ ins_err &= ~(INS_UNDOC | INS_UNPORT);
+ break;
+ case OPTION_MACH_WUD:
+ if ((ins_ok & INS_R800) == 0)
+ {
+ ins_ok &= ~(INS_UNDOC|INS_UNPORT);
+ ins_err &= ~INS_UNDOC;
+ }
+ break;
+ case OPTION_MACH_WUP:
+ ins_ok &= ~INS_UNPORT;
+ ins_err &= ~(INS_UNDOC|INS_UNPORT);
+ break;
+ case OPTION_MACH_FUD:
+ if ((ins_ok & INS_R800) == 0)
+ {
+ ins_ok &= (INS_UNDOC | INS_UNPORT);
+ ins_err |= INS_UNDOC | INS_UNPORT;
+ }
+ break;
+ case OPTION_MACH_FUP:
+ ins_ok &= ~INS_UNPORT;
+ ins_err |= INS_UNPORT;
+ break;
+ }
+
+ return 1;
+}
+
+void
+md_show_usage (FILE * f)
+{
+ fprintf (f, "\n\
+CPU model/instruction set options:\n\
+\n\
+ -z80\t\t assemble for Z80\n\
+ -ignore-undocumented-instructions\n\
+ -Wnud\n\
+\tsilently assemble undocumented Z80-instructions that work on R800\n\
+ -ignore-unportable-instructions\n\
+ -Wnup\n\
+\tsilently assemble all undocumented Z80-instructions\n\
+ -warn-undocumented-instructions\n\
+ -Wud\n\
+\tissue warnings for undocumented Z80-instructions that work on R800\n\
+ -warn-unportable-instructions\n\
+ -Wup\n\
+\tissue warnings for other undocumented Z80-instructions\n\
+ -forbid-undocumented-instructions\n\
+ -Fud\n\
+\ttreat all undocumented z80-instructions as errors\n\
+ -forbid-unportable-instructions\n\
+ -Fup\n\
+\ttreat undocumented z80-instructions that do not work on R800 as errors\n\
+ -r800\t assemble for R800\n\n\
+Default: -z80 -ignore-undocument-instructions -warn-unportable-instructions.\n");
+}
+
+static symbolS * zero;
+
+void
+md_begin (void)
+{
+ expressionS nul;
+ char * p;
+
+ p = input_line_pointer;
+ input_line_pointer = "0";
+ nul.X_md=0;
+ expression (& nul);
+ input_line_pointer = p;
+ zero = make_expr_symbol (& nul);
+ /* We do not use relaxation (yet). */
+ linkrelax = 0;
+}
+
+void
+z80_md_end (void)
+{
+ int mach_type;
+
+ if (ins_used & (INS_UNPORT | INS_R800))
+ ins_used |= INS_UNDOC;
+
+ switch (ins_used)
+ {
+ case INS_Z80:
+ mach_type = bfd_mach_z80strict;
+ break;
+ case INS_Z80|INS_UNDOC:
+ mach_type = bfd_mach_z80;
+ break;
+ case INS_Z80|INS_UNDOC|INS_UNPORT:
+ mach_type = bfd_mach_z80full;
+ break;
+ case INS_Z80|INS_UNDOC|INS_R800:
+ mach_type = bfd_mach_r800;
+ break;
+ default:
+ mach_type = 0;
+ }
+
+ bfd_set_arch_mach (stdoutput, TARGET_ARCH, mach_type);
+}
+
+/* Port specific features. */
+const pseudo_typeS md_pseudo_table[] =
+{
+ { "defs", s_space, 1}, /* Synonym for ds on some assemblers. */
+ { "ds", s_space, 1}, /* Fill with bytes rather than words. */
+ { "psect", obj_coff_section, 0}, /* TODO: Translate attributes. */
+ { "set", 0, 0}, /* Real instruction on z80. */
+ { NULL, 0, 0 }
+} ;
+
+static const char *
+skip_space (const char *s)
+{
+ while (*s == ' ' || *s == '\t')
+ ++s;
+ return s;
+}
+
+/* A non-zero return-value causes a continue in the
+ function read_a_source_file () in ../read.c. */
+int
+z80_start_line_hook (void)
+{
+ char *p, quote;
+ char buf[4];
+
+ /* Convert one character constants. */
+ for (p = input_line_pointer; *p && *p != '\n'; ++p)
+ {
+ switch (*p)
+ {
+ case '\'':
+ if (p[1] != 0 && p[1] != '\'' && p[2] == '\'')
+ {
+ snprintf (buf, 4, "%3d", (unsigned char)p[1]);
+ *p++ = buf[0];
+ *p++ = buf[1];
+ *p++ = buf[2];
+ break;
+ }
+ case '"':
+ for (quote = *p++; quote != *p && '\n' != *p; ++p)
+ /* No escapes. */ ;
+ if (quote != *p)
+ {
+ as_bad (_("-- unterminated string"));
+ ignore_rest_of_line ();
+ return 1;
+ }
+ break;
+ }
+ }
+ /* Check for <label>[:] (EQU|DEFL) <value>. */
+ if (is_name_beginner (*input_line_pointer))
+ {
+ char c, *rest, *line_start;
+ int len;
+
+ line_start = input_line_pointer;
+ LISTING_NEWLINE ();
+ if (ignore_input ())
+ return 0;
+
+ c = get_symbol_end ();
+ rest = input_line_pointer + 1;
+
+ if (*rest == ':')
+ ++rest;
+ if (*rest == ' ' || *rest == '\t')
+ ++rest;
+ if (strncasecmp (rest, "EQU", 3) == 0)
+ len = 3;
+ else if (strncasecmp (rest, "DEFL", 4) == 0)
+ len = 4;
+ else
+ len = 0;
+ if (len && (rest[len] == ' ' || rest[len] == '\t'))
+ {
+ /* Handle assignment here. */
+ input_line_pointer = rest + len;
+ if (line_start[-1] == '\n')
+ bump_line_counters ();
+ /* Most Z80 assemblers require the first definition of a
+ label to use "EQU" and redefinitions to have "DEFL".
+ That does not fit the way GNU as deals with labels, so
+ GNU as is more permissive. */
+ equals (line_start, TRUE);
+ return 1;
+ }
+ else
+ {
+ /* Restore line and pointer. */
+ *input_line_pointer = c;
+ input_line_pointer = line_start;
+ }
+ }
+ return 0;
+}
+
+symbolS *
+md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+char *
+md_atof (int type ATTRIBUTE_UNUSED, char *litP ATTRIBUTE_UNUSED,
+ int *sizeP ATTRIBUTE_UNUSED)
+{
+ return _("floating point numbers are not implemented");
+}
+
+valueT
+md_section_align (segT seg ATTRIBUTE_UNUSED, valueT size)
+{
+ return size;
+}
+
+long
+md_pcrel_from (fixS * fixp)
+{
+ return fixp->fx_where +
+ fixp->fx_frag->fr_address + 1;
+}
+
+typedef const char * (asfunc)(char, char, const char*);
+
+typedef struct _table_t
+{
+ char* name;
+ char prefix;
+ char opcode;
+ asfunc * fp;
+} table_t;
+
+/* Compares the key for structs that start with a char * to the key. */
+static int
+key_cmp (const void * a, const void * b)
+{
+ const char *str_a, *str_b;
+
+ str_a = *((const char**)a);
+ str_b = *((const char**)b);
+ return strcmp (str_a, str_b);
+}
+
+#define BUFLEN 8 /* Large enough for any keyword. */
+
+char buf[BUFLEN];
+const char *key = buf;
+
+#define R_STACKABLE (0x80)
+#define R_ARITH (0x40)
+#define R_IX (0x20)
+#define R_IY (0x10)
+#define R_INDEX (R_IX | R_IY)
+
+#define REG_A (7)
+#define REG_B (0)
+#define REG_C (1)
+#define REG_D (2)
+#define REG_E (3)
+#define REG_H (4)
+#define REG_L (5)
+#define REG_F (6 | 8)
+#define REG_I (9)
+#define REG_R (10)
+
+#define REG_AF (3 | R_STACKABLE)
+#define REG_BC (0 | R_STACKABLE | R_ARITH)
+#define REG_DE (1 | R_STACKABLE | R_ARITH)
+#define REG_HL (2 | R_STACKABLE | R_ARITH)
+#define REG_SP (3 | R_ARITH)
+
+static const struct reg_entry
+{
+ char* name;
+ int number;
+} regtable[] =
+{
+ {"a", REG_A },
+ {"af", REG_AF },
+ {"b", REG_B },
+ {"bc", REG_BC },
+ {"c", REG_C },
+ {"d", REG_D },
+ {"de", REG_DE },
+ {"e", REG_E },
+ {"f", REG_F },
+ {"h", REG_H },
+ {"hl", REG_HL },
+ {"i", REG_I },
+ {"ix", REG_HL | R_IX },
+ {"ixh",REG_H | R_IX },
+ {"ixl",REG_L | R_IX },
+ {"iy", REG_HL | R_IY },
+ {"iyh",REG_H | R_IY },
+ {"iyl",REG_L | R_IY },
+ {"l", REG_L },
+ {"r", REG_R },
+ {"sp", REG_SP },
+} ;
+
+/* Prevent an error on a line from also generating
+ a "junk at end of line" error message. */
+static char err_flag;
+
+static void
+error (const char * message)
+{
+ as_bad (message);
+ err_flag = 1;
+}
+
+static void
+ill_op (void)
+{
+ error (_("illegal operand"));
+}
+
+static void
+wrong_mach (int ins_type)
+{
+ const char *p;
+
+ switch (ins_type)
+ {
+ case INS_UNDOC:
+ p = "undocumented instruction";
+ break;
+ case INS_UNPORT:
+ p = "instruction does not work on R800";
+ break;
+ case INS_R800:
+ p = "instruction only works R800";
+ break;
+ default:
+ p = 0; /* Not reachables. */
+ }
+
+ if (ins_type & ins_err)
+ error (_(p));
+ else
+ as_warn (_(p));
+}
+
+static void
+check_mach (int ins_type)
+{
+ if ((ins_type & ins_ok) == 0)
+ wrong_mach (ins_type);
+ ins_used |= ins_type;
+}
+
+/* This function tries to subtract two symbols, the generic code does
+ that too, but this function tries harder.
+ The behaviour of this function is not altered by extra
+ fragmentations caused by the code to produce listings. */
+int
+z80_optimize_expr (expressionS *resultP, operatorT left_op,
+ expressionS *right)
+{
+ int res, swap, som;
+ fragS *lfrag, *rfrag, *cur;
+
+ res = 0;
+ if (left_op == O_subtract
+ && right->X_op == O_symbol
+ && resultP->X_op == O_symbol)
+ {
+ lfrag = symbol_get_frag (resultP->X_add_symbol);
+ rfrag = symbol_get_frag (right->X_add_symbol);
+
+ if (S_GET_SEGMENT (right->X_add_symbol) != undefined_section
+ && (S_GET_SEGMENT (right->X_add_symbol)
+ == S_GET_SEGMENT (resultP->X_add_symbol)))
+ {
+ for (swap = 0; (res == 0) && (swap < 2); ++swap)
+ {
+ if (swap)
+ {
+ cur = lfrag;
+ lfrag = rfrag;
+ rfrag = cur;
+ }
+ else
+ cur = rfrag;
+
+ /* Now som == cur->fr_address - rfrag->address, except
+ the latter may not have been computed yet. */
+ for (som = 0; cur && cur != lfrag; cur = cur->fr_next)
+ {
+ if (cur->fr_type == rs_fill) /* Is the size fized? */
+ som += cur->fr_fix+cur->fr_offset*cur->fr_var;
+ else
+ break;
+ }
+
+ if (cur == lfrag)
+ {
+ resultP->X_add_number -= right->X_add_number;
+ resultP->X_add_number
+ += (S_GET_VALUE (resultP->X_add_symbol)
+ - S_GET_VALUE (right->X_add_symbol));
+ som -= lfrag->fr_address - rfrag->fr_address;
+ /* Correct the result if the fr_address
+ fields are not computed yet. */
+ resultP->X_add_number += (swap ? -som : som);
+ resultP->X_op = O_constant;
+ resultP->X_add_symbol = 0;
+ res = 1;
+ }
+ }
+ }
+ }
+ return res;
+}
+
+/* Check whether an expression is indirect. */
+static int
+is_indir (const char *s)
+{
+ char quote;
+ const char *p;
+ int indir, depth;
+
+ /* Indirection is indicated with parentheses. */
+ indir = (*s == '(');
+
+ for (p = s, depth = 0; *p && *p != ','; ++p)
+ {
+ switch (*p)
+ {
+ case '"':
+ case '\'':
+ for (quote = *p++; quote != *p && *p != '\n'; ++p)
+ if (*p == '\\' && p[1])
+ ++p;
+ break;
+ case '(':
+ ++ depth;
+ break;
+ case ')':
+ -- depth;
+ if (depth == 0)
+ {
+ p = skip_space (p + 1);
+ if (*p && *p != ',')
+ indir = 0;
+ --p;
+ }
+ if (depth < 0)
+ error (_("mismatched parentheses"));
+ break;
+ }
+ }
+
+ if (depth != 0)
+ error (_("mismatched parentheses"));
+
+ return indir;
+}
+
+/* Parse general expression. */
+static const char *
+parse_exp2 (const char *s, expressionS *op, segT *pseg)
+{
+ const char *p;
+ int indir;
+ int i;
+ const struct reg_entry * regp;
+ expressionS offset;
+
+ p = skip_space (s);
+ op->X_md = indir = is_indir (p);
+ if (indir)
+ p = skip_space (p + 1);
+
+ for (i = 0; i < BUFLEN; ++i)
+ {
+ if (!ISALPHA (p[i])) /* Register names consist of letters only. */
+ break;
+ buf[i] = TOLOWER (p[i]);
+ }
+
+ if ((i < BUFLEN) && ((p[i] == 0) || (strchr (")+-, \t", p[i]))))
+ {
+ buf[i] = 0;
+ regp = bsearch (& key, regtable, ARRAY_SIZE (regtable),
+ sizeof (regtable[0]), key_cmp);
+ if (regp)
+ {
+ *pseg = reg_section;
+ op->X_add_symbol = op->X_op_symbol = 0;
+ op->X_add_number = regp->number;
+ op->X_op = O_register;
+ p += strlen (regp->name);
+ p = skip_space (p);
+ if (indir)
+ {
+ if (*p == ')')
+ ++p;
+ if ((regp->number & R_INDEX) && (regp->number & R_ARITH))
+ {
+ op->X_op = O_md1;
+
+ if ((*p == '+') || (*p == '-'))
+ {
+ input_line_pointer = (char*) p;
+ expression (& offset);
+ p = skip_space (input_line_pointer);
+ if (*p != ')')
+ error (_("bad offset expression syntax"));
+ else
+ ++ p;
+ op->X_add_symbol = make_expr_symbol (& offset);
+ return p;
+ }
+
+ /* We treat (i[xy]) as (i[xy]+0), which is how it will
+ end up anyway, unless we're processing jp (i[xy]). */
+ op->X_add_symbol = zero;
+ }
+ }
+ p = skip_space (p);
+
+ if ((*p == 0) || (*p == ','))
+ return p;
+ }
+ }
+ /* Not an argument involving a register; use the generic parser. */
+ input_line_pointer = (char*) s ;
+ *pseg = expression (op);
+ if (op->X_op == O_absent)
+ error (_("missing operand"));
+ if (op->X_op == O_illegal)
+ error (_("bad expression syntax"));
+ return input_line_pointer;
+}
+
+static const char *
+parse_exp (const char *s, expressionS *op)
+{
+ segT dummy;
+ return parse_exp2 (s, op, & dummy);
+}
+
+/* Condition codes, including some synonyms provided by HiTech zas. */
+static const struct reg_entry cc_tab[] =
+{
+ { "age", 6 << 3 },
+ { "alt", 7 << 3 },
+ { "c", 3 << 3 },
+ { "di", 4 << 3 },
+ { "ei", 5 << 3 },
+ { "lge", 2 << 3 },
+ { "llt", 3 << 3 },
+ { "m", 7 << 3 },
+ { "nc", 2 << 3 },
+ { "nz", 0 << 3 },
+ { "p", 6 << 3 },
+ { "pe", 5 << 3 },
+ { "po", 4 << 3 },
+ { "z", 1 << 3 },
+} ;
+
+/* Parse condition code. */
+static const char *
+parse_cc (const char *s, char * op)
+{
+ const char *p;
+ int i;
+ struct reg_entry * cc_p;
+
+ for (i = 0; i < BUFLEN; ++i)
+ {
+ if (!ISALPHA (s[i])) /* Condition codes consist of letters only. */
+ break;
+ buf[i] = TOLOWER (s[i]);
+ }
+
+ if ((i < BUFLEN)
+ && ((s[i] == 0) || (s[i] == ',')))
+ {
+ buf[i] = 0;
+ cc_p = bsearch (&key, cc_tab, ARRAY_SIZE (cc_tab),
+ sizeof (cc_tab[0]), key_cmp);
+ }
+ else
+ cc_p = NULL;
+
+ if (cc_p)
+ {
+ *op = cc_p->number;
+ p = s + i;
+ }
+ else
+ p = NULL;
+
+ return p;
+}
+
+static const char *
+emit_insn (char prefix, char opcode, const char * args)
+{
+ char *p;
+
+ if (prefix)
+ {
+ p = frag_more (2);
+ *p++ = prefix;
+ }
+ else
+ p = frag_more (1);
+ *p = opcode;
+ return args;
+}
+
+static void
+emit_byte (expressionS * val, bfd_reloc_code_real_type r_type)
+{
+ char *p;
+ int lo, hi;
+ fixS * fixp;
+
+ p = frag_more (1);
+ *p = val->X_add_number;
+ if ((r_type != BFD_RELOC_8_PCREL) && (val->X_op == O_constant))
+ {
+ lo = -128;
+ hi = (BFD_RELOC_8 == r_type) ? 255 : 127;
+
+ if ((val->X_add_number < lo) || (val->X_add_number > hi))
+ {
+ if (r_type == BFD_RELOC_Z80_DISP8)
+ as_bad (_("offset too large"));
+ else
+ as_warn (_("overflow"));
+ }
+ }
+ else
+ {
+ fixp = fix_new_exp (frag_now, p - frag_now->fr_literal, 1, val,
+ (r_type == BFD_RELOC_8_PCREL) ? TRUE : FALSE, r_type);
+ /* FIXME : Process constant offsets immediately. */
+ }
+}
+
+static void
+emit_word (expressionS * val)
+{
+ char *p;
+
+ p = frag_more (2);
+ if ( (val->X_op == O_register)
+ || (val->X_op == O_md1))
+ ill_op ();
+ else
+ {
+ *p = val->X_add_number;
+ p[1] = (val->X_add_number>>8);
+ if (val->X_op != O_constant)
+ fix_new_exp (frag_now, p - frag_now->fr_literal, 2,
+ val, FALSE, BFD_RELOC_16);
+ }
+}
+
+static void
+emit_mx (char prefix, char opcode, int shift, expressionS * arg)
+ /* The operand m may be r, (hl), (ix+d), (iy+d),
+ if 0 == prefix m may also be ixl, ixh, iyl, iyh. */
+{
+ char *q;
+ int rnum;
+
+ rnum = arg->X_add_number;
+ switch (arg->X_op)
+ {
+ case O_register:
+ if (arg->X_md)
+ {
+ if (rnum != REG_HL)
+ {
+ ill_op ();
+ break;
+ }
+ else
+ rnum = 6;
+ }
+ else
+ {
+ if ((prefix == 0) && (rnum & R_INDEX))
+ {
+ prefix = (rnum & R_IX) ? 0xDD : 0xFD;
+ check_mach (INS_UNDOC);
+ rnum &= ~R_INDEX;
+ }
+ if (rnum > 7)
+ {
+ ill_op ();
+ break;
+ }
+ }
+ q = frag_more (prefix ? 2 : 1);
+ if (prefix)
+ * q ++ = prefix;
+ * q ++ = opcode + (rnum << shift);
+ break;
+ case O_md1:
+ q = frag_more (2);
+ *q++ = (rnum & R_IX) ? 0xDD : 0xFD;
+ *q = (prefix) ? prefix : (opcode + (6 << shift));
+ emit_byte (symbol_get_value_expression (arg->X_add_symbol),
+ BFD_RELOC_Z80_DISP8);
+ if (prefix)
+ {
+ q = frag_more (1);
+ *q = opcode+(6<<shift);
+ }
+ break;
+ default:
+ abort ();
+ }
+}
+
+/* The operand m may be r, (hl), (ix+d), (iy+d),
+ if 0 = prefix m may also be ixl, ixh, iyl, iyh. */
+static const char *
+emit_m (char prefix, char opcode, const char *args)
+{
+ expressionS arg_m;
+ const char *p;
+
+ p = parse_exp (args, &arg_m);
+ switch (arg_m.X_op)
+ {
+ case O_md1:
+ case O_register:
+ emit_mx (prefix, opcode, 0, &arg_m);
+ break;
+ default:
+ ill_op ();
+ }
+ return p;
+}
+
+/* The operand m may be as above or one of the undocumented
+ combinations (ix+d),r and (iy+d),r (if unportable instructions
+ are allowed). */
+static const char *
+emit_mr (char prefix, char opcode, const char *args)
+{
+ expressionS arg_m, arg_r;
+ const char *p;
+
+ p = parse_exp (args, & arg_m);
+
+ switch (arg_m.X_op)
+ {
+ case O_md1:
+ if (*p == ',')
+ {
+ p = parse_exp (p + 1, & arg_r);
+
+ if ((arg_r.X_md == 0)
+ && (arg_r.X_op == O_register)
+ && (arg_r.X_add_number < 8))
+ opcode += arg_r.X_add_number-6; /* Emit_mx () will add 6. */
+ else
+ {
+ ill_op ();
+ break;
+ }
+ check_mach (INS_UNPORT);
+ }
+ case O_register:
+ emit_mx (prefix, opcode, 0, & arg_m);
+ break;
+ default:
+ ill_op ();
+ }
+ return p;
+}
+
+static void
+emit_sx (char prefix, char opcode, expressionS * arg_p)
+{
+ char *q;
+
+ switch (arg_p->X_op)
+ {
+ case O_register:
+ case O_md1:
+ emit_mx (prefix, opcode, 0, arg_p);
+ break;
+ default:
+ if (arg_p->X_md)
+ ill_op ();
+ else
+ {
+ q = frag_more (prefix ? 2 : 1);
+ if (prefix)
+ *q++ = prefix;
+ *q = opcode ^ 0x46;
+ emit_byte (arg_p, BFD_RELOC_8);
+ }
+ }
+}
+
+/* The operand s may be r, (hl), (ix+d), (iy+d), n. */
+static const char *
+emit_s (char prefix, char opcode, const char *args)
+{
+ expressionS arg_s;
+ const char *p;
+
+ p = parse_exp (args, & arg_s);
+ emit_sx (prefix, opcode, & arg_s);
+ return p;
+}
+
+static const char *
+emit_call (char prefix ATTRIBUTE_UNUSED, char opcode, const char * args)
+{
+ expressionS addr;
+ const char *p; char *q;
+
+ p = parse_exp (args, &addr);
+ if (addr.X_md)
+ ill_op ();
+ else
+ {
+ q = frag_more (1);
+ *q = opcode;
+ emit_word (& addr);
+ }
+ return p;
+}
+
+/* Operand may be rr, r, (hl), (ix+d), (iy+d). */
+static const char *
+emit_incdec (char prefix, char opcode, const char * args)
+{
+ expressionS operand;
+ int rnum;
+ const char *p; char *q;
+
+ p = parse_exp (args, &operand);
+ rnum = operand.X_add_number;
+ if ((! operand.X_md)
+ && (operand.X_op == O_register)
+ && (R_ARITH&rnum))
+ {
+ q = frag_more ((rnum & R_INDEX) ? 2 : 1);
+ if (rnum & R_INDEX)
+ *q++ = (rnum & R_IX) ? 0xDD : 0xFD;
+ *q = prefix + ((rnum & 3) << 4);
+ }
+ else
+ {
+ if ((operand.X_op == O_md1) || (operand.X_op == O_register))
+ emit_mx (0, opcode, 3, & operand);
+ else
+ ill_op ();
+ }
+ return p;
+}
+
+static const char *
+emit_jr (char prefix ATTRIBUTE_UNUSED, char opcode, const char * args)
+{
+ expressionS addr;
+ const char *p;
+ char *q;
+
+ p = parse_exp (args, &addr);
+ if (addr.X_md)
+ ill_op ();
+ else
+ {
+ q = frag_more (1);
+ *q = opcode;
+ emit_byte (&addr, BFD_RELOC_8_PCREL);
+ }
+ return p;
+}
+
+static const char *
+emit_jp (char prefix, char opcode, const char * args)
+{
+ expressionS addr;
+ const char *p;
+ char *q;
+ int rnum;
+
+ p = parse_exp (args, & addr);
+ if (addr.X_md)
+ {
+ rnum = addr.X_add_number;
+ if ((addr.X_op == O_register && (rnum & ~R_INDEX) == REG_HL)
+ /* An operand (i[xy]) would have been rewritten to (i[xy]+0)
+ in parse_exp (). */
+ || (addr.X_op == O_md1 && addr.X_add_symbol == zero))
+ {
+ q = frag_more ((rnum & R_INDEX) ? 2 : 1);
+ if (rnum & R_INDEX)
+ *q++ = (rnum & R_IX) ? 0xDD : 0xFD;
+ *q = prefix;
+ }
+ else
+ ill_op ();
+ }
+ else
+ {
+ q = frag_more (1);
+ *q = opcode;
+ emit_word (& addr);
+ }
+ return p;
+}
+
+static const char *
+emit_im (char prefix, char opcode, const char * args)
+{
+ expressionS mode;
+ const char *p;
+ char *q;
+
+ p = parse_exp (args, & mode);
+ if (mode.X_md || (mode.X_op != O_constant))
+ ill_op ();
+ else
+ switch (mode.X_add_number)
+ {
+ case 1:
+ case 2:
+ ++mode.X_add_number;
+ /* Fall through. */
+ case 0:
+ q = frag_more (2);
+ *q++ = prefix;
+ *q = opcode + 8*mode.X_add_number;
+ break;
+ default:
+ ill_op ();
+ }
+ return p;
+}
+
+static const char *
+emit_pop (char prefix ATTRIBUTE_UNUSED, char opcode, const char * args)
+{
+ expressionS regp;
+ const char *p;
+ char *q;
+
+ p = parse_exp (args, & regp);
+ if ((!regp.X_md)
+ && (regp.X_op == O_register)
+ && (regp.X_add_number & R_STACKABLE))
+ {
+ int rnum;
+
+ rnum = regp.X_add_number;
+ if (rnum&R_INDEX)
+ {
+ q = frag_more (2);
+ *q++ = (rnum&R_IX)?0xDD:0xFD;
+ }
+ else
+ q = frag_more (1);
+ *q = opcode + ((rnum & 3) << 4);
+ }
+ else
+ ill_op ();
+
+ return p;
+}
+
+static const char *
+emit_retcc (char prefix ATTRIBUTE_UNUSED, char opcode, const char * args)
+{
+ char cc, *q;
+ const char *p;
+
+ p = parse_cc (args, &cc);
+ q = frag_more (1);
+ if (p)
+ *q = opcode + cc;
+ else
+ *q = prefix;
+ return p ? p : args;
+}
+
+static const char *
+emit_adc (char prefix, char opcode, const char * args)
+{
+ expressionS term;
+ int rnum;
+ const char *p;
+ char *q;
+
+ p = parse_exp (args, &term);
+ if (*p++ != ',')
+ {
+ error (_("bad intruction syntax"));
+ return p;
+ }
+
+ if ((term.X_md) || (term.X_op != O_register))
+ ill_op ();
+ else
+ switch (term.X_add_number)
+ {
+ case REG_A:
+ p = emit_s (0, prefix, p);
+ break;
+ case REG_HL:
+ p = parse_exp (p, &term);
+ if ((!term.X_md) && (term.X_op == O_register))
+ {
+ rnum = term.X_add_number;
+ if (R_ARITH == (rnum & (R_ARITH | R_INDEX)))
+ {
+ q = frag_more (2);
+ *q++ = 0xED;
+ *q = opcode + ((rnum & 3) << 4);
+ break;
+ }
+ }
+ /* Fall through. */
+ default:
+ ill_op ();
+ }
+ return p;
+}
+
+static const char *
+emit_add (char prefix, char opcode, const char * args)
+{
+ expressionS term;
+ int lhs, rhs;
+ const char *p;
+ char *q;
+
+ p = parse_exp (args, &term);
+ if (*p++ != ',')
+ {
+ error (_("bad intruction syntax"));
+ return p;
+ }
+
+ if ((term.X_md) || (term.X_op != O_register))
+ ill_op ();
+ else
+ switch (term.X_add_number & ~R_INDEX)
+ {
+ case REG_A:
+ p = emit_s (0, prefix, p);
+ break;
+ case REG_HL:
+ lhs = term.X_add_number;
+ p = parse_exp (p, &term);
+ if ((!term.X_md) && (term.X_op == O_register))
+ {
+ rhs = term.X_add_number;
+ if ((rhs & R_ARITH)
+ && ((rhs == lhs) || ((rhs & ~R_INDEX) != REG_HL)))
+ {
+ q = frag_more ((lhs & R_INDEX) ? 2 : 1);
+ if (lhs & R_INDEX)
+ *q++ = (lhs & R_IX) ? 0xDD : 0xFD;
+ *q = opcode + ((rhs & 3) << 4);
+ break;
+ }
+ }
+ /* Fall through. */
+ default:
+ ill_op ();
+ }
+ return p;
+}
+
+static const char *
+emit_bit (char prefix, char opcode, const char * args)
+{
+ expressionS b;
+ int bn;
+ const char *p;
+
+ p = parse_exp (args, &b);
+ if (*p++ != ',')
+ error (_("bad intruction syntax"));
+
+ bn = b.X_add_number;
+ if ((!b.X_md)
+ && (b.X_op == O_constant)
+ && (0 <= bn)
+ && (bn < 8))
+ {
+ if (opcode == 0x40)
+ /* Bit : no optional third operand. */
+ p = emit_m (prefix, opcode + (bn << 3), p);
+ else
+ /* Set, res : resulting byte can be copied to register. */
+ p = emit_mr (prefix, opcode + (bn << 3), p);
+ }
+ else
+ ill_op ();
+ return p;
+}
+
+static const char *
+emit_jpcc (char prefix, char opcode, const char * args)
+{
+ char cc;
+ const char *p;
+
+ p = parse_cc (args, & cc);
+ if (p && *p++ == ',')
+ p = emit_call (0, opcode + cc, p);
+ else
+ p = (prefix == (char)0xC3)
+ ? emit_jp (0xE9, prefix, args)
+ : emit_call (0, prefix, args);
+ return p;
+}
+
+static const char *
+emit_jrcc (char prefix, char opcode, const char * args)
+{
+ char cc;
+ const char *p;
+
+ p = parse_cc (args, &cc);
+ if (p && *p++ == ',')
+ {
+ if (cc > (3 << 3))
+ error (_("condition code invalid for jr"));
+ else
+ p = emit_jr (0, opcode + cc, p);
+ }
+ else
+ p = emit_jr (0, prefix, args);
+
+ return p;
+}
+
+static const char *
+emit_ex (char prefix_in ATTRIBUTE_UNUSED,
+ char opcode_in ATTRIBUTE_UNUSED, const char * args)
+{
+ expressionS op;
+ const char * p;
+ char prefix, opcode;
+
+ p = parse_exp (args, &op);
+ p = skip_space (p);
+ if (*p++ != ',')
+ {
+ error (_("bad instruction syntax"));
+ return p;
+ }
+
+ prefix = opcode = 0;
+ if (op.X_op == O_register)
+ switch (op.X_add_number | (op.X_md ? 0x8000 : 0))
+ {
+ case REG_AF:
+ if (TOLOWER (*p++) == 'a' && TOLOWER (*p++) == 'f')
+ {
+ /* The scrubber changes '\'' to '`' in this context. */
+ if (*p == '`')
+ ++p;
+ opcode = 0x08;
+ }
+ break;
+ case REG_DE:
+ if (TOLOWER (*p++) == 'h' && TOLOWER (*p++) == 'l')
+ opcode = 0xEB;
+ break;
+ case REG_SP|0x8000:
+ p = parse_exp (p, & op);
+ if (op.X_op == O_register
+ && op.X_md == 0
+ && (op.X_add_number & ~R_INDEX) == REG_HL)
+ {
+ opcode = 0xE3;
+ if (R_INDEX & op.X_add_number)
+ prefix = (R_IX & op.X_add_number) ? 0xDD : 0xFD;
+ }
+ break;
+ }
+ if (opcode)
+ emit_insn (prefix, opcode, p);
+ else
+ ill_op ();
+
+ return p;
+}
+
+static const char *
+emit_in (char prefix ATTRIBUTE_UNUSED, char opcode ATTRIBUTE_UNUSED,
+ const char * args)
+{
+ expressionS reg, port;
+ const char *p;
+ char *q;
+
+ p = parse_exp (args, ®);
+ if (*p++ != ',')
+ {
+ error (_("bad intruction syntax"));
+ return p;
+ }
+
+ p = parse_exp (p, &port);
+ if (reg.X_md == 0
+ && reg.X_op == O_register
+ && (reg.X_add_number <= 7 || reg.X_add_number == REG_F)
+ && (port.X_md))
+ {
+ if (port.X_op != O_md1 && port.X_op != O_register)
+ {
+ if (REG_A == reg.X_add_number)
+ {
+ q = frag_more (1);
+ *q = 0xDB;
+ emit_byte (&port, BFD_RELOC_8);
+ }
+ else
+ ill_op ();
+ }
+ else
+ {
+ if (port.X_add_number == REG_C)
+ {
+ if (reg.X_add_number == REG_F)
+ check_mach (INS_UNDOC);
+ else
+ {
+ q = frag_more (2);
+ *q++ = 0xED;
+ *q = 0x40|((reg.X_add_number&7)<<3);
+ }
+ }
+ else
+ ill_op ();
+ }
+ }
+ else
+ ill_op ();
+ return p;
+}
+
+static const char *
+emit_out (char prefix ATTRIBUTE_UNUSED, char opcode ATTRIBUTE_UNUSED,
+ const char * args)
+{
+ expressionS reg, port;
+ const char *p;
+ char *q;
+
+ p = parse_exp (args, & port);
+ if (*p++ != ',')
+ {
+ error (_("bad intruction syntax"));
+ return p;
+ }
+ p = parse_exp (p, ®);
+ if (!port.X_md)
+ { ill_op (); return p; }
+ /* Allow "out (c), 0" as unportable instruction. */
+ if (reg.X_op == O_constant && reg.X_add_number == 0)
+ {
+ check_mach (INS_UNPORT);
+ reg.X_op = O_register;
+ reg.X_add_number = 6;
+ }
+ if (reg.X_md
+ || reg.X_op != O_register
+ || reg.X_add_number > 7)
+ ill_op ();
+ else
+ if (port.X_op != O_register && port.X_op != O_md1)
+ {
+ if (REG_A == reg.X_add_number)
+ {
+ q = frag_more (1);
+ *q = 0xD3;
+ emit_byte (&port, BFD_RELOC_8);
+ }
+ else
+ ill_op ();
+ }
+ else
+ {
+ if (REG_C == port.X_add_number)
+ {
+ q = frag_more (2);
+ *q++ = 0xED;
+ *q = 0x41 | (reg.X_add_number << 3);
+ }
+ else
+ ill_op ();
+ }
+ return p;
+}
+
+static const char *
+emit_rst (char prefix ATTRIBUTE_UNUSED, char opcode, const char * args)
+{
+ expressionS addr;
+ const char *p;
+ char *q;
+
+ p = parse_exp (args, &addr);
+ if (addr.X_op != O_constant)
+ {
+ error ("rst needs constant address");
+ return p;
+ }
+
+ if (addr.X_add_number & ~(7 << 3))
+ ill_op ();
+ else
+ {
+ q = frag_more (1);
+ *q = opcode + (addr.X_add_number & (7 << 3));
+ }
+ return p;
+}
+
+static void
+emit_ldxhl (char prefix, char opcode, expressionS *src, expressionS *d)
+{
+ char *q;
+
+ if (src->X_md)
+ ill_op ();
+ else
+ {
+ if (src->X_op == O_register)
+ {
+ if (src->X_add_number>7)
+ ill_op ();
+ if (prefix)
+ {
+ q = frag_more (2);
+ *q++ = prefix;
+ }
+ else
+ q = frag_more (1);
+ *q = opcode + src->X_add_number;
+ if (d)
+ emit_byte (d, BFD_RELOC_Z80_DISP8);
+ }
+ else
+ {
+ if (prefix)
+ {
+ q = frag_more (2);
+ *q++ = prefix;
+ }
+ else
+ q = frag_more (1);
+ *q = opcode^0x46;
+ if (d)
+ emit_byte (d, BFD_RELOC_Z80_DISP8);
+ emit_byte (src, BFD_RELOC_8);
+ }
+ }
+}
+
+static void
+emit_ldreg (int dest, expressionS * src)
+{
+ char *q;
+ int rnum;
+
+ switch (dest)
+ {
+ /* 8 Bit ld group: */
+ case REG_I:
+ case REG_R:
+ if (src->X_md == 0 && src->X_op == O_register && src->X_add_number == REG_A)
+ {
+ q = frag_more (2);
+ *q++ = 0xED;
+ *q = (dest == REG_I) ? 0x47 : 0x4F;
+ }
+ else
+ ill_op ();
+ break;
+
+ case REG_A:
+ if ((src->X_md) && src->X_op != O_register && src->X_op != O_md1)
+ {
+ q = frag_more (1);
+ *q = 0x3A;
+ emit_word (src);
+ break;
+ }
+
+ if ((src->X_md)
+ && src->X_op == O_register
+ && (src->X_add_number == REG_BC || src->X_add_number == REG_DE))
+ {
+ q = frag_more (1);
+ *q = 0x0A + ((dest & 1) << 4);
+ break;
+ }
+
+ if ((!src->X_md)
+ && src->X_op == O_register
+ && (src->X_add_number == REG_R || src->X_add_number == REG_I))
+ {
+ q = frag_more (2);
+ *q++ = 0xED;
+ *q = (src->X_add_number == REG_I) ? 0x57 : 0x5F;
+ break;
+ }
+ /* Fall through. */
+ case REG_B:
+ case REG_C:
+ case REG_D:
+ case REG_E:
+ emit_sx (0, 0x40 + (dest << 3), src);
+ break;
+
+ case REG_H:
+ case REG_L:
+ if ((src->X_md == 0)
+ && (src->X_op == O_register)
+ && (src->X_add_number & R_INDEX))
+ ill_op ();
+ else
+ emit_sx (0, 0x40 + (dest << 3), src);
+ break;
+
+ case R_IX | REG_H:
+ case R_IX | REG_L:
+ case R_IY | REG_H:
+ case R_IY | REG_L:
+ if (src->X_md)
+ {
+ ill_op ();
+ break;
+ }
+ check_mach (INS_UNDOC);
+ if (src-> X_op == O_register)
+ {
+ rnum = src->X_add_number;
+ if ((rnum & ~R_INDEX) < 8
+ && ((rnum & R_INDEX) == (dest & R_INDEX)
+ || ( (rnum & ~R_INDEX) != REG_H
+ && (rnum & ~R_INDEX) != REG_L)))
+ {
+ q = frag_more (2);
+ *q++ = (dest & R_IX) ? 0xDD : 0xFD;
+ *q = 0x40 + ((dest & 0x07) << 3) + (rnum & 7);
+ }
+ else
+ ill_op ();
+ }
+ else
+ {
+ q = frag_more (2);
+ *q++ = (dest & R_IX) ? 0xDD : 0xFD;
+ *q = 0x06 + ((dest & 0x07) << 3);
+ emit_byte (src, BFD_RELOC_8);
+ }
+ break;
+
+ /* 16 Bit ld group: */
+ case REG_SP:
+ if (src->X_md == 0
+ && src->X_op == O_register
+ && REG_HL == (src->X_add_number &~ R_INDEX))
+ {
+ q = frag_more ((src->X_add_number & R_INDEX) ? 2 : 1);
+ if (src->X_add_number & R_INDEX)
+ *q++ = (src->X_add_number & R_IX) ? 0xDD : 0xFD;
+ *q = 0xF9;
+ break;
+ }
+ /* Fall through. */
+ case REG_BC:
+ case REG_DE:
+ if (src->X_op == O_register || src->X_op != O_md1)
+ ill_op ();
+ q = frag_more (src->X_md ? 2 : 1);
+ if (src->X_md)
+ {
+ *q++ = 0xED;
+ *q = 0x4B + ((dest & 3) << 4);
+ }
+ else
+ *q = 0x01 + ((dest & 3) << 4);
+ emit_word (src);
+ break;
+
+ case REG_HL:
+ case REG_HL | R_IX:
+ case REG_HL | R_IY:
+ if (src->X_op == O_register || src->X_op == O_md1)
+ ill_op ();
+ q = frag_more ((dest & R_INDEX) ? 2 : 1);
+ if (dest & R_INDEX)
+ * q ++ = (dest & R_IX) ? 0xDD : 0xFD;
+ *q = (src->X_md) ? 0x2A : 0x21;
+ emit_word (src);
+ break;
+
+ case REG_AF:
+ case REG_F:
+ ill_op ();
+ break;
+
+ default:
+ abort ();
+ }
+}
+
+static const char *
+emit_ld (char prefix_in ATTRIBUTE_UNUSED, char opcode_in ATTRIBUTE_UNUSED,
+ const char * args)
+{
+ expressionS dst, src;
+ const char *p;
+ char *q;
+ char prefix, opcode;
+
+ p = parse_exp (args, &dst);
+ if (*p++ != ',')
+ error (_("bad intruction syntax"));
+ p = parse_exp (p, &src);
+
+ switch (dst.X_op)
+ {
+ case O_md1:
+ emit_ldxhl ((dst.X_add_number & R_IX) ? 0xDD : 0xFD, 0x70,
+ &src, symbol_get_value_expression (dst.X_add_symbol));
+ break;
+
+ case O_register:
+ if (dst.X_md)
+ {
+ switch (dst.X_add_number)
+ {
+ case REG_BC:
+ case REG_DE:
+ if (src.X_md == 0 && src.X_op == O_register && src.X_add_number == REG_A)
+ {
+ q = frag_more (1);
+ *q = 0x02 + ( (dst.X_add_number & 1) << 4);
+ }
+ else
+ ill_op ();
+ break;
+ case REG_HL:
+ emit_ldxhl (0, 0x70, &src, NULL);
+ break;
+ default:
+ ill_op ();
+ }
+ }
+ else
+ emit_ldreg (dst.X_add_number, &src);
+ break;
+
+ default:
+ if (src.X_md != 0 || src.X_op != O_register)
+ ill_op ();
+ prefix = opcode = 0;
+ switch (src.X_add_number)
+ {
+ case REG_A:
+ opcode = 0x32; break;
+ case REG_BC: case REG_DE: case REG_SP:
+ prefix = 0xED; opcode = 0x43 + ((src.X_add_number&3)<<4); break;
+ case REG_HL:
+ opcode = 0x22; break;
+ case REG_HL|R_IX:
+ prefix = 0xDD; opcode = 0x22; break;
+ case REG_HL|R_IY:
+ prefix = 0xFD; opcode = 0x22; break;
+ }
+ if (opcode)
+ {
+ q = frag_more (prefix?2:1);
+ if (prefix)
+ *q++ = prefix;
+ *q = opcode;
+ emit_word (&dst);
+ }
+ else
+ ill_op ();
+ }
+ return p;
+}
+
+static const char *
+emit_data (char prefix ATTRIBUTE_UNUSED, char opcode, const char * args)
+{
+ const char *p, *q;
+ char *u, quote;
+ int cnt;
+ expressionS exp;
+
+ p = skip_space (args);
+ if (!*p)
+ error (_("missing operand"));
+
+ while (*p)
+ {
+ if (*p == '\"' || *p == '\'')
+ {
+ if (opcode == 1)
+ {
+ for (quote = *p, q = ++p, cnt = 0; *p && quote != *p; ++p, ++cnt)
+ ;
+ u = frag_more (cnt);
+ memcpy (u, q, cnt);
+ if (!*p)
+ as_warn (_("unterminated string"));
+ else
+ p = skip_space (p+1);
+ }
+ else
+ {
+ ill_op ();
+ break;
+ }
+ }
+ else
+ {
+ p = parse_exp (p, &exp);
+ if (exp.X_op == O_md1 || exp.X_op == O_register)
+ {
+ ill_op ();
+ break;
+ }
+ if (exp.X_md)
+ as_warn (_("parentheses ignored"));
+ if (opcode == 1)
+ emit_byte (&exp, BFD_RELOC_8);
+ else
+ emit_word (&exp);
+ p = skip_space (p);
+ }
+ if (*p)
+ {
+ if (*p != ',')
+ as_warn (_("missing ','"));
+ else
+ ++p;
+ }
+ }
+ return p;
+}
+
+static const char *
+emit_mulub (char prefix ATTRIBUTE_UNUSED, char opcode, const char * args)
+{
+ const char *p;
+
+ p = skip_space (args);
+ if (TOLOWER (*p++) != 'a' || *p++ != ',')
+ ill_op ();
+ else
+ {
+ char *q, reg;
+
+ reg = TOLOWER (*p++);
+ switch (reg)
+ {
+ case 'b':
+ case 'c':
+ case 'd':
+ case 'e':
+ check_mach (INS_R800);
+ if (!*skip_space (p))
+ {
+ q = frag_more (2);
+ *q++ = prefix;
+ *q = opcode + ((reg - 'b') << 3);
+ break;
+ }
+ default:
+ ill_op ();
+ }
+ }
+ return p;
+}
+
+static const char *
+emit_muluw (char prefix ATTRIBUTE_UNUSED, char opcode, const char * args)
+{
+ const char *p;
+
+ p = skip_space (args);
+ if (TOLOWER (*p++) != 'h' || TOLOWER (*p++) != 'l' || *p++ != ',')
+ ill_op ();
+ else
+ {
+ expressionS reg;
+ char *q;
+
+ p = parse_exp (p, & reg);
+
+ if ((!reg.X_md) && reg.X_op == O_register)
+ switch (reg.X_add_number)
+ {
+ case REG_BC:
+ case REG_SP:
+ check_mach (INS_R800);
+ q = frag_more (2);
+ *q++ = prefix;
+ *q = opcode + ((reg.X_add_number & 3) << 4);
+ break;
+ default:
+ ill_op ();
+ }
+ }
+ return p;
+}
+
+static table_t instab[] =
+{
+ { "adc", 0x88, 0x4A, emit_adc },
+ { "add", 0x80, 0x09, emit_add },
+ { "and", 0x00, 0xA0, emit_s },
+ { "bit", 0xCB, 0x40, emit_bit },
+ { "call", 0xCD, 0xC4, emit_jpcc },
+ { "ccf", 0x00, 0x3F, emit_insn },
+ { "cp", 0x00, 0xB8, emit_s },
+ { "cpd", 0xED, 0xA9, emit_insn },
+ { "cpdr", 0xED, 0xB9, emit_insn },
+ { "cpi", 0xED, 0xA1, emit_insn },
+ { "cpir", 0xED, 0xB1, emit_insn },
+ { "cpl", 0x00, 0x2F, emit_insn },
+ { "daa", 0x00, 0x27, emit_insn },
+ { "db", 0x00, 0x01, emit_data },
+ { "dec", 0x0B, 0x05, emit_incdec },
+ { "defb", 0x00, 0x01, emit_data },
+ { "defw", 0x00, 0x02, emit_data },
+ { "di", 0x00, 0xF3, emit_insn },
+ { "djnz", 0x00, 0x10, emit_jr },
+ { "dw", 0x00, 0x02, emit_data },
+ { "ei", 0x00, 0xFB, emit_insn },
+ { "ex", 0x00, 0x00, emit_ex},
+ { "exx", 0x00, 0xD9, emit_insn },
+ { "halt", 0x00, 0x76, emit_insn },
+ { "im", 0xED, 0x46, emit_im },
+ { "in", 0x00, 0x00, emit_in },
+ { "inc", 0x03, 0x04, emit_incdec },
+ { "ind", 0xED, 0xAA, emit_insn },
+ { "indr", 0xED, 0xBA, emit_insn },
+ { "ini", 0xED, 0xA2, emit_insn },
+ { "inir", 0xED, 0xB2, emit_insn },
+ { "jp", 0xC3, 0xC2, emit_jpcc },
+ { "jr", 0x18, 0x20, emit_jrcc },
+ { "ld", 0x00, 0x00, emit_ld },
+ { "ldd", 0xED, 0xA8, emit_insn },
+ { "lddr", 0xED, 0xB8, emit_insn },
+ { "ldi", 0xED, 0xA0, emit_insn },
+ { "ldir", 0xED, 0xB0, emit_insn },
+ { "mulub", 0xED, 0xC5, emit_mulub }, /* R800 only. */
+ { "muluw", 0xED, 0xC3, emit_muluw }, /* R800 only. */
+ { "neg", 0xed, 0x44, emit_insn },
+ { "nop", 0x00, 0x00, emit_insn },
+ { "or", 0x00, 0xB0, emit_s },
+ { "otdr", 0xED, 0xBB, emit_insn },
+ { "otir", 0xED, 0xB3, emit_insn },
+ { "out", 0x00, 0x00, emit_out },
+ { "outd", 0xED, 0xAB, emit_insn },
+ { "outi", 0xED, 0xA3, emit_insn },
+ { "pop", 0x00, 0xC1, emit_pop },
+ { "push", 0x00, 0xC5, emit_pop },
+ { "res", 0xCB, 0x80, emit_bit },
+ { "ret", 0xC9, 0xC0, emit_retcc },
+ { "reti", 0xED, 0x4D, emit_insn },
+ { "retn", 0xED, 0x45, emit_insn },
+ { "rl", 0xCB, 0x10, emit_mr },
+ { "rla", 0x00, 0x17, emit_insn },
+ { "rlc", 0xCB, 0x00, emit_mr },
+ { "rlca", 0x00, 0x07, emit_insn },
+ { "rld", 0xED, 0x6F, emit_insn },
+ { "rr", 0xCB, 0x18, emit_mr },
+ { "rra", 0x00, 0x1F, emit_insn },
+ { "rrc", 0xCB, 0x08, emit_mr },
+ { "rrca", 0x00, 0x0F, emit_insn },
+ { "rrd", 0xED, 0x67, emit_insn },
+ { "rst", 0x00, 0xC7, emit_rst},
+ { "sbc", 0x98, 0x42, emit_adc },
+ { "scf", 0x00, 0x37, emit_insn },
+ { "set", 0xCB, 0xC0, emit_bit },
+ { "sla", 0xCB, 0x20, emit_mr },
+ { "sli", 0xCB, 0x30, emit_mr },
+ { "sll", 0xCB, 0x30, emit_mr },
+ { "sra", 0xCB, 0x28, emit_mr },
+ { "srl", 0xCB, 0x38, emit_mr },
+ { "sub", 0x00, 0x90, emit_s },
+ { "xor", 0x00, 0xA8, emit_s },
+} ;
+
+void
+md_assemble (char* str)
+{
+ const char *p;
+ char * old_ptr;
+ int i;
+ table_t *insp;
+
+ err_flag = 0;
+ old_ptr = input_line_pointer;
+ p = skip_space (str);
+ for (i = 0; (i < BUFLEN) && (ISALPHA (*p));)
+ buf[i++] = TOLOWER (*p++);
+
+ if ((i == BUFLEN)
+ || ((*p) && (!ISSPACE (*p))))
+ as_bad (_("illegal instruction '%s'"), buf);
+
+ buf[i] = 0;
+ p = skip_space (p);
+ key = buf;
+
+ insp = bsearch (&key, instab, ARRAY_SIZE (instab),
+ sizeof (instab[0]), key_cmp);
+ if (!insp)
+ as_bad (_("illegal instruction '%s'"), buf);
+ else
+ {
+ p = insp->fp (insp->prefix, insp->opcode, p);
+ p = skip_space (p);
+ if ((!err_flag) && *p)
+ as_bad (_("junk at end of line, first unrecognized character is `%c'"),
+ *p);
+ }
+ input_line_pointer = old_ptr;
+}
+
+void
+md_apply_fix (fixS * fixP, valueT* valP, segT seg ATTRIBUTE_UNUSED)
+{
+ long val = * (long *) valP;
+ char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
+
+ switch (fixP->fx_r_type)
+ {
+ case BFD_RELOC_8_PCREL:
+ if (fixP->fx_addsy)
+ {
+ fixP->fx_no_overflow = 1;
+ fixP->fx_done = 0;
+ }
+ else
+ {
+ fixP->fx_no_overflow = (-128 <= val && val < 128);
+ if (!fixP->fx_no_overflow)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("relative jump out of range"));
+ *buf++ = val;
+ fixP->fx_done = 1;
+ }
+ break;
+
+ case BFD_RELOC_Z80_DISP8:
+ if (fixP->fx_addsy)
+ {
+ fixP->fx_no_overflow = 1;
+ fixP->fx_done = 0;
+ }
+ else
+ {
+ fixP->fx_no_overflow = (-128 <= val && val < 128);
+ if (!fixP->fx_no_overflow)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("index offset out of range"));
+ *buf++ = val;
+ fixP->fx_done = 1;
+ }
+ break;
+
+ case BFD_RELOC_8:
+ if (val > 255 || val < -128)
+ as_warn_where (fixP->fx_file, fixP->fx_line, _("overflow"));
+ *buf++ = val;
+ if (fixP->fx_addsy == NULL)
+ fixP->fx_done = 1;
+ break;
+
+ case BFD_RELOC_16:
+ *buf++ = val;
+ *buf++ = (val >> 8);
+ if (fixP->fx_addsy == NULL)
+ fixP->fx_done = 1;
+ break;
+
+ case BFD_RELOC_32: /* .Long may produce this. */
+ *buf++ = val;
+ *buf++ = (val >> 8);
+ *buf++ = (val >> 16);
+ *buf++ = (val >> 24);
+ if (fixP->fx_addsy == NULL)
+ fixP->fx_done = 1;
+ break;
+
+ default:
+ printf (_("md_apply_fix: unknown r_type 0x%x\n"), fixP->fx_r_type);
+ abort ();
+ }
+}
+
+/* GAS will call this to generate a reloc. GAS will pass the
+ resulting reloc to `bfd_install_relocation'. This currently works
+ poorly, as `bfd_install_relocation' often does the wrong thing, and
+ instances of `tc_gen_reloc' have been written to work around the
+ problems, which in turns makes it difficult to fix
+ `bfd_install_relocation'. */
+
+/* If while processing a fixup, a reloc really
+ needs to be created then it is done here. */
+
+arelent *
+tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED , fixS *fixp)
+{
+ arelent *reloc;
+
+ if (! bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type))
+ {
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("reloc %d not supported by object file format"),
+ (int) fixp->fx_r_type);
+ return NULL;
+ }
+
+ reloc = xmalloc (sizeof (arelent));
+ reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
+ *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
+ reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
+ reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
+ reloc->addend = fixp->fx_offset;
+
+ return reloc;
+}
+
--- /dev/null
+/* this is tc-z80.h
+ Copyright 2005 Free Software Foundation, Inc.
+
+ Contributed by Arnold Metselaar <arnold_m@operamail.com>
+
+ This file is part of GAS, the GNU Assembler.
+
+ GAS is free software; you can redistribute it and/or modify
+ it under the terms of .the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ GAS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GAS; see the file COPYING. If not, write to the Free
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#ifndef TC_Z80
+#define TC_Z80
+
+#define TARGET_ARCH bfd_arch_z80
+#define BFD_ARCH TARGET_ARCH
+#define COFF_MAGIC 0x5A80
+#define TARGET_MACH 0
+#define TARGET_BYTES_BIG_ENDIAN 0
+
+/* If you define this macro, GAS will warn about the
+ use of nonstandard escape sequences in a string. */
+#define ONLY_STANDARD_ESCAPES
+
+/* GAS will call this function for any expression that can not be
+ recognized. When the function is called, `input_line_pointer'
+ will point to the start of the expression. */
+#define md_operand(x)
+
+/* This should just call either `number_to_chars_bigendian' or
+ `number_to_chars_littleendian', whichever is appropriate. On
+ targets like the MIPS which support options to change the
+ endianness, which function to call is a runtime decision. On
+ other targets, `md_number_to_chars' can be a simple macro. */
+#define md_number_to_chars number_to_chars_littleendian
+
+#define TC_COUNT_RELOC(x) 1
+
+#define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype (fixP)
+#define md_convert_frag(b,s,f) as_fatal ("convert_frag called\n")
+#define md_estimate_size_before_relax(f,s) \
+ (as_fatal (_("estimate_size_before_relax called")), 1)
+
+/* Define some functions to be called by generic code. */
+#define md_end z80_md_end
+#define md_start_line_hook() { if (z80_start_line_hook ()) continue; }
+#define md_optimize_expr z80_optimize_expr
+
+extern void z80_md_end (void);
+extern int z80_start_line_hook (void);
+extern int z80_optimize_expr (expressionS *, operatorT, expressionS *);
+
+#define WORKING_DOT_WORD
+
+/* If you define this macro, it means that `tc_gen_reloc' may return
+ multiple relocation entries for a single fixup. In this case, the
+ return value of `tc_gen_reloc' is a pointer to a null terminated
+ array. */
+#undef RELOC_EXPANSION_POSSIBLE
+
+/* No shared lib support, so we don't need to ensure
+ externally visible symbols can be overridden. */
+#define EXTERN_FORCE_RELOC 0
+
+/* Values passed to md_apply_fix3 don't include the symbol value. */
+#define MD_APPLY_SYM_VALUE(FIX) 0
+
+#define LISTING_WORD_SIZE 2
+
+/* A '$' is used to refer to the current location or as a hex. prefix. */
+#define DOLLAR_DOT
+#define DOLLAR_AMBIGU 1
+#define SINGLE_EQ_COMPARES
+#define LOCAL_LABELS_FB 1
+#define LITERAL_PREFIXPERCENT_BIN
+#define NUMBERS_WITH_SUFFIX 1
+#define NO_PSEUDO_DOT 1
+/* We allow single quotes to delimit character constants as
+ well, but it is cleaner to handle that in tc-z80.c. */
+#define SINGLE_QUOTE_STRINGS
+#define NO_STRING_ESCAPES
+
+/* An `.lcomm' directive with no explicit alignment parameter will
+ use this macro to set P2VAR to the alignment that a request for
+ SIZE bytes will have. The alignment is expressed as a power of
+ two. If no alignment should take place, the macro definition
+ should do nothing. Some targets define a `.bss' directive that is
+ also affected by this macro. The default definition will set
+ P2VAR to the truncated power of two of sizes up to eight bytes. */
+#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) (P2VAR) = 0
+
+#endif
xtensa-*-*) fmt=elf ;;
+ z80-*-coff) fmt=coff ;;
+
z8k-*-coff | z8k-*-sim) fmt=coff ;;
*-*-aout | *-*-scout) fmt=aout ;;
esac
case ${cpu_type} in
- alpha | arm | i386 | ia64 | mips | ns32k | pdp11 | ppc | sparc | z8k)
+ alpha | arm | i386 | ia64 | mips | ns32k | pdp11 | ppc | sparc | z80 | z8k)
bfd_gas=yes
;;
esac
c-vax.texi \
c-v850.texi \
c-xtensa.texi \
+ c-z80.texi \
c-z8k.texi
gasver.texi: $(srcdir)/../../bfd/configure
-# Makefile.in generated by automake 1.9.2 from Makefile.am.
+# Makefile.in generated by automake 1.9.5 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
c-vax.texi \
c-v850.texi \
c-xtensa.texi \
+ c-z80.texi \
c-z8k.texi
$(DVIPS) -o $@ $<
uninstall-info-am:
- $(PRE_UNINSTALL)
+ @$(PRE_UNINSTALL)
@if (install-info --version && \
install-info --version 2>&1 | sed 1q | grep -i -v debian) >/dev/null 2>&1; then \
list='$(INFO_DEPS)'; \
relfile=`echo "$$file" | sed 's|^.*/||'`; \
relfile_i=`echo "$$relfile" | sed 's|\.info$$||;s|$$|.i|'`; \
(if cd "$(DESTDIR)$(infodir)"; then \
- echo " rm -f $$relfile $$relfile-[0-9] $$relfile-[0-9][0-9] $$relfile_i[0-9] $$relfile_i[0-9][0-9])"; \
+ echo " cd '$(DESTDIR)$(infodir)' && rm -f $$relfile $$relfile-[0-9] $$relfile-[0-9][0-9] $$relfile_i[0-9] $$relfile_i[0-9][0-9]"; \
rm -f $$relfile $$relfile-[0-9] $$relfile-[0-9][0-9] $$relfile_i[0-9] $$relfile_i[0-9][0-9]; \
else :; fi); \
done
@set V850
@set VAX
@set XTENSA
+@set Z80
@set Z8000
@c Does this version of the assembler use the difference-table kluge?
[@b{-mcpu=54[123589]}|@b{-mcpu=54[56]lp}] [@b{-mfar-mode}|@b{-mf}]
[@b{-merrors-to-file} @var{<filename>}|@b{-me} @var{<filename>}]
@end ifset
+
+@ifset Z80
+
+@emph{Target Z80 options:}
+ [@b{-z80}] [@b{-r800}]
+ [@b{ -ignore-undocumented-instructions}] [@b{-Wnud}]
+ [@b{ -ignore-unportable-instructions}] [@b{-Wnup}]
+ [@b{ -warn-undocumented-instructions}] [@b{-Wud}]
+ [@b{ -warn-unportable-instructions}] [@b{-Wup}]
+ [@b{ -forbid-undocumented-instructions}] [@b{-Fud}]
+ [@b{ -forbid-unportable-instructions}] [@b{-Fup}]
+@end ifset
+
@ifset Z8000
@c Z8000 has no machine-dependent assembler options
@end ifset
@end table
@end ifset
+@ifset Z80
+The following options are available when @value{AS} is configured for
+a Z80 family processor.
+@table @gcctabopt
+@item -z80
+Assemble for Z80 processor.
+@item -r800
+Assemble for R800 processor.
+@item -ignore-undocumented-instructions
+@itemx -Wnud
+Assemble undocumented Z80 instructions that also work on R800 without warning.
+@item -ignore-unportable-instructions
+@itemx -Wnup
+Assemble all undocumented Z80 instructions without warning.
+@item -warn-undocumented-instructions
+@itemx -Wud
+Issue a warning for undocumented Z80 instructions that also work on R800.
+@item -warn-unportable-instructions
+@itemx -Wup
+Issue a warning for undocumented Z80 instructions that do notwork on R800.
+@item -forbid-undocumented-instructions
+@itemx -Fud
+Treat all undocumented instructions as errors.
+@item -forbid-unportable-instructions
+@itemx -Fup
+Treat undocumented Z80 intructions that do notwork on R800 as errors.
+@end table
+@end ifset
+
@c man end
@menu
@ifset VAX
@samp{#} on the Vax;
@end ifset
+@ifset Z80
+@samp{;} for the Z80;
+@end ifset
@ifset Z8000
@samp{!} for the Z8000;
@end ifset
@samp{@var{symbol} .equ @var{expression}}.
@end ifset
+@ifset Z80
+The syntax for @code{equ} on the Z80 is
+@samp{@var{symbol} equ @var{expression}}.
+On the Z80 it is an eror if @var{symbol} is already defined,
+compare @xref{Equiv}.
+@end ifset
+
@node Equiv
@section @code{.equiv @var{symbol}, @var{expression}}
@cindex @code{equiv} directive
@samp{@var{symbol} .set @var{expression}}.
@end ifset
+@ifset Z80
+On Z80 @code{set} is a real instruction, use
+@samp{@var{symbol} defl @var{expression}} instead.
+@end ifset
+
@node Short
@section @code{.short @var{expressions}}
@ifset XTENSA
* Xtensa-Dependent:: Xtensa Dependent Features
@end ifset
+@ifset Z80
+* Z80-Dependent:: Z80 Dependent Features
+@end ifset
@ifset Z8000
* Z8000-Dependent:: Z8000 Dependent Features
@end ifset
@include c-tic54x.texi
@end ifset
+@ifset Z80
+@include c-z80.texi
+@end ifset
+
@ifset Z8000
@include c-z8k.texi
@end ifset
--- /dev/null
+@c This is part of the GAS manual.
+@c For copying conditions, see the file as.texinfo.
+
+@ifset GENERIC
+@page
+@node Z80-Dependent
+@chapter Z80 Dependent Features
+@end ifset
+
+@c DO-NOT-COMMIT
+
+@ifclear GENERIC
+@node Machine Dependencies
+@chapter Z80 Dependent Features
+@end ifclear
+
+@cindex Z80 support
+@menu
+* Z80 Options:: Options
+* Z80 Syntax:: Syntax
+* Z80 Floating Point:: Floating Point
+* Z80 Directives:: Z80 Machine Directives
+* Z80 Opcodes:: Opcodes
+@end menu
+
+@node Z80 Options
+@section Options
+@cindex Z80 options
+@cindex options for Z80
+The Zilog Z80 and Ascii R800 version of @code{@value{AS}} have a few machine
+dependent options.
+@table @option
+@cindex @code{-z80} command line option, Z80
+@item -z80
+Produce code for the Z80 processor. There are additional options to
+request warnings and error messages for undocumented instructions.
+@item -ignore-undocumented-instructions
+@itemx -Wnud
+Silently assemble undocumented Z80-instructions that have been adopted
+as documented R800-instructions.
+@item -ignore-unportable-instructions
+@itemx -Wnup
+Silently assemble all undocumented Z80-instructions.
+@item -warn-undocumented-instructions
+@itemx -Wud
+Issue warnings for undocumented Z80-instructions that work on R800, do
+not assemble other undocumented instructions without warning.
+@item -warn-unportable-instructions
+@itemx -Wup
+Issue warnings for other undocumented Z80-instructions, do not treat any
+undocumented instructions as errors.
+@item -forbid-undocumented-instructions
+@itemx -Fud
+Treat all undocumented z80-instructions as errors.
+@item -forbid-unportable-instructions
+@itemx -Fup
+Treat undocumented z80-instructions that do not work on R800 as errors.
+
+@cindex @code{-r800} command line option, Z80
+@item -r800
+Produce code for the R800 processor. The assembler does not support
+undocumented instructions for the R800.
+In line with common practice, @code{@value{AS}} uses Z80 instriction names
+for the R800 processor, as far as they exist.
+@end table
+
+@cindex Z80 Syntax
+@node Z80 Syntax
+@section Syntax
+The assembler syntax closely follows the 'Z80 family CPU User Manual' by
+Zilog.
+In expressions a single @samp{=} may be used as ``is equal to''
+comparison operator.
+
+Suffices can be used to indicate the radix of integer constants;
+@samp{H} or @samp{h} for hexadecimal, @samp{D} or @samp{d} for decimal,
+@samp{Q}, @samp{O}, @samp{q} or @samp{o} for octal, and @samp{B} for
+binary.
+
+The suffix @samp{b} denotes a backreference to local label.
+
+@menu
+* Z80-Chars:: Special Characters
+* Z80-Regs:: Register Names
+* Z80-Case:: Case Sensitivity
+@end menu
+
+@node Z80-Chars
+@subsection Special Characters
+
+@cindex line comment character, Z80
+@cindex Z80 line comment character
+The semicolon @samp{;} is the line comment character;
+
+@cindex location counter, Z80
+@cindex hexadecimal prefix, Z80
+@cindex Z80 $
+The dollar sign @samp{$} can be used as a prefix for hexadecimal numbers
+and as a symbol denoting the current location counter.
+
+@cindex character escapes, Z80
+@cindex Z80, \
+A backslash @samp{\} is an ordinary character for the Z80 assembler.
+
+@cindex character constant, Z80
+@cindex single quote, Z80
+@cindex Z80 '
+The single quote @samp{'} must be followed by a closing quote. If there
+is one character inbetween, it is a character constant, otherwise it is
+a string constant.
+
+@node Z80-Regs
+@subsection Register Names
+@cindex Z80 registers
+@cindex register names, Z80
+
+The registers are referred to with the letters assigned to them by
+Zilog. In addition @command{@value{AS}} recognises @samp{ixl} and
+@samp{ixh} as the least and most significant octet in @samp{ix}, and
+similarly @samp{iyl} and @samp{iyh} as parts of @samp{iy}.
+
+@c The @samp{'} in @samp{ex af,af'} may be omitted.
+
+@node Z80-Case
+@subsection Case Sensitivity
+@cindex Z80, case sensitivity
+@cindex case sensitivity, Z80
+
+Upper and lower case are equivalent in register names, opcodes,
+condition codes and assembler directives.
+The case of letters is significant in labels and symbol names. The case
+is also important to distinguish the suffix @samp{b} for a backward reference
+to a local label from the suffix @samp{B} for a number in binary notation.
+
+@node Z80 Floating Point
+@section Floating Point
+@cindex floating point, Z80
+@cindex Z80 floating point
+Floating-point numbers are not supported.
+
+@node Z80 Directives
+@section Z80 Assembler Directives
+
+@command{@value{AS}} for the Z80 supports some additional directives for
+compatibility with other assemblers.
+
+@cindex Z80-only directives
+These are the additional directives in @code{@value{AS}} for the Z80:
+
+@table @code
+@item db @var{expression}|@var{string}[,@var{expression}|@var{string}...]
+@itemx defb @var{expression}|@var{string}[,@var{expression}|@var{string}...]
+For each @var{string} the characters are copied to the object file, for
+each other @var{expression} the value is stored in one byte, ignoring
+overflow.
+
+@item dw @var{expression}[,@var{expression}...]
+@itemx defw @var{expression}[,@var{expression}...]
+For each @var{expression} the value is stored in two bytes, ignoring
+overflow.
+
+@item ds @var{count}[, @var{value}]
+@itemx defs @var{count}[, @var{value}]
+@c Synonyms for @code{ds.b},
+@c which should have been described elsewhre
+Fill @var{count} bytes in the object file with @var{value}, if
+@var{value} is omitted it defaults to zero.
+
+@item @var{symbol} equ @var{expression}
+@itemx @var{symbol} defl @var{expression}
+These directives set the value of @var{symbol} to @var{expression}. To
+keep code portable to other assemblers it is best to use @samp{equ} for
+the first definition and @samp{defl} for redefinitions.
+
+@item set
+This is a normal instruction on Z80, and not an assembler directive.
+
+@item psect @var{name}
+A synonym for @xref{Section}, no second argument should be given.
+@ignore
+
+The following attributes will possibly be recognised in the future
+@table @code
+@item abs
+The section is to be absolute. @code{@value{AS}} will issue an error
+message because it can not produce an absolute section.
+@item global
+The section is to be concatenated with other sections of the same name
+by the linker, this is the default.
+@item local
+The section is not global. @code{@value{AS}} will issue a warning if
+object file format is not soff.
+@item ovrld
+The section is to be overlapped with other sections of the same name by
+the linker. @code{@value{AS}} will issue an error message
+because it can not mark a section as such.
+@item pure
+The section is marked as read only.
+@end table
+@end ignore
+
+@end table
+
+@node Z80 Opcodes
+@section Opcodes
+In line with commmon practice Z80 mnonics are used for both the Z80 and
+the R800.
+
+In many instructions it is possible to use one of the half index
+registers (@samp{ixl},@samp{ixh},@samp{iyl},@samp{iyh}) in stead of an
+8-bit general purpose register. This yields instructions that are
+documented on the R800 and undocumented on the Z80.
+Similarly @code{in f,(c)} is documented on the R800 and undocumented on
+the Z80.
+
+The assembler also supports the following undocumented Z80-instructions,
+that have not been adopted in the R800 instruction set:
+@table @code
+@item out (c),0
+Sends zero to the port pointed to by register c.
+
+@item sli @var{m}
+Equivalent to @code{@var{m} = (@var{m}<<1)+1}, the operand @var{m} can
+be any operand that is valid for @samp{sla}. One can use @samp{sll} as a
+synonym for @samp{sli}.
+
+@item @var{op} (ix+@var{d}), @var{r}
+This is equivalent to
+
+@example
+ld @var{r}, (ix+@var{d})
+@var{opc} @var{r}
+ld (ix+@var{d}), @var{r}
+@end example
+
+The operation @samp{@var{opc}} may be any of @samp{res @var{b},},
+@samp{set @var{b},}, @samp{rl}, @samp{rlc}, @samp{rr}, @samp{rrc},
+@samp{sla}, @samp{sli}, @samp{sra} and @samp{srl}, and the register
+@samp{@var{r}} may be any of @samp{a}, @samp{b}, @samp{c}, @samp{d},
+@samp{e}, @samp{h} and @samp{l}.
+
+@item @var{opc} (iy+@var{d}), @var{r}
+As above, but with @samp{iy} instead of @samp{ix}.
+@end table
+
+The web site at @uref{http://www.z80.info} is a good starting place to
+find more information on programming the Z80.
+
+2005-10-25 Arnold Metselaar <arnold.metselaar@planet.nl>
+
+ * gas/all/gas.exp: Exclude Z80-*-* from floating point, string,
+ and cofftag test.
+ * gas/macros/macros.exp: Expect z80-*-* to fail the strings test
+ because it has no string escapes.
+ * gas/z80/quotes.d: New file
+ * gas/z80/quotes.d: New file
+ * gas/z80/quotes.s: New file
+ * gas/z80/redef.d: New file
+ * gas/z80/redef.s: New file
+ * gas/z80/z80.exp: New file
+
2005-10-24 Bernd Schmidt <bernd.schmidt@analog.com>
* gas/bfin/flow2.d: Match changed assembler behaviour.
gas_test "p1480.s" "" "-a>" "simplifiable double subtraction"
}
-# No floating point support in assembly code for CRIS.
-if { ![istarget cris-*-*] && ![istarget crisv32-*-*] } then {
+# No floating point support in assembly code for CRIS and Z80.
+if { ![istarget cris-*-*] && ![istarget crisv32-*-*]
+ && ![istarget z80-*-*] } then {
gas_test "float.s" "" "" "simple FP constants"
}
{ iq2000*-*-* } { }
{ mips*-*-* } { }
{ *c54x*-*-* } { }
+ { z80-*-* } { }
default {
setup_xfail "*c30*-*-*" "*c4x*-*-*" "pdp11-*-*"
run_dump_test redef
# We omit the ARM toolchains because they define locals to
# start with '.', which eliminates .eos, .text etc from the output.
# Omit c54x, since .tag and .def mean something different on that target
-if { ([istarget *-*-coff*] && ![istarget *arm*-*-coff] && ![istarget thumb*-*-coff] && ![istarget xscale-*-coff] && ![istarget *c4x*-*-coff] && ![istarget *c54x*-*-coff]) \
+# Omit Z80, since octal numbers need a suffix on that target
+if { ([istarget *-*-coff*] && ![istarget *arm*-*-coff] && ![istarget thumb*-*-coff] && ![istarget xscale-*-coff] && ![istarget *c4x*-*-coff] && ![istarget *c54x*-*-coff] && ![istarget z80-*-coff]) \
||([istarget *-*-pe*] && ![istarget arm*-*-pe*] && ![istarget thumb*-*-pe*]) \
|| [istarget i*86-*-aix*] \
|| [istarget i*86-*-sco*] \
run_dump_test quad
}
-run_dump_test weakref1
-run_dump_test weakref1g
-run_dump_test weakref1l
-run_dump_test weakref1u
-run_dump_test weakref1w
+
+# .set works differently on some targets.
+case $target_triplet in {
+ { z80-*-* } { }
+ default {
+ run_dump_test weakref1
+ run_dump_test weakref1g
+ run_dump_test weakref1l
+ run_dump_test weakref1u
+ run_dump_test weakref1w
+ }
+}
gas_test_error "weakref2.s" "" "e: would close weakref loop: e => a => b => c => d => e"
gas_test_error "weakref3.s" "" "a: would close weakref loop: a => b => c => d => e => a"
setup_xfail "powerpc*-*-aix*" "powerpc*-*-beos*" "powerpc*-*-macos*"
setup_xfail "powerpc*-*-pe" "powerpc*-*-*win*"
setup_xfail "rs6000-*-*"
+ setup_xfail "z80-*-*"
# FIXME: Due to difference in what "consecutive octets" means.
setup_xfail "*c4x*-*-*" "*c54x*-*"
{ m68*-*-* } { }
{ m88*-*-* } { }
{ mmix-* } { }
+ { z80-* } { }
default { run_list_test dot "-alm" }
}
run_list_test end ""
--- /dev/null
+#objdump: -s -j .data
+#name: quotes
+
+.*:.*
+
+Contents of section .data:
+ 0000 73696e67 6c653a27 646f7562 6c653a22[ ]+................
+ 0010 00657363 6170653a 5c5c08fe 3a[ ]+................
+#pass
\ No newline at end of file
--- /dev/null
+ ;; test the parsing of strings and character constants
+ section .data
+laf:
+ defb "single:'"
+ defb 'double:"',laf
+ defb 'escape:\\'
+
+ ex af,af'
+af0:
+ cp '9'+1
+
--- /dev/null
+#objdump: -s -j .data
+#name: .equ redefinitions
+
+.*: .*
+
+Contents of section .data:
+ 0000 00000000 0[04]00000[04] 0[08]00000[08] 0[0c]00000[0c][ ]+................[ ]*
+#pass
--- /dev/null
+ .data
+_start:
+x: defl .-_start
+ .long x
+ .balign 4
+x: defl .-_start
+ .long x
+x: defl .-_start
+ .long x
+x: defl .-_start
+ .long x
--- /dev/null
+# run targets for target Z80.
+
+if [istarget z80-*-*] then
+{
+# test redefinitions
+ run_dump_test "redef"
+# test parsing of " and '
+ run_dump_test "quotes"
+
+}
+2005-10-25 Arnold Metselaar <arnold.metselaar@planet.nl>
+
+ disasm.h: Add declaration for print_insn_z80
+
2005-09-30 Catherine Moore <clm@cm00re.com>
* dis-asm.h (print_insn_bfin): Declare.
- * elf/bfin.h: New file.
- * elf/common.h (EM_BLACKFIN): Define.
* opcode/bfin.h: New file.
2005-09-26 Mark Mitchell <mark@codesourcery.com>
+2005-10-25 Arnold Metselaar <arnold.metselaar@planet.nl>
+
+ * internal.h: Add relocation number for Z80
+ * z80.h: New file.
+
2005-08-18 Alan Modra <amodra@bigpond.net.au>
* a29k.h: Delete.
/* Internal format of COFF object file data structures, for GNU BFD.
This file is part of BFD, the Binary File Descriptor library.
- Copyright 1999, 2000, 2001, 2002, 2003, 2004
+ Copyright 1999, 2000, 2001, 2002, 2003, 2004. 2005
Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
#define R_IMM4H 0x24 /* high nibble */
#define R_DISP7 0x25 /* djnz displacement */
+/* Z80 modes */
+#define R_OFF8 0x32 /* 8 bit signed abs, for (i[xy]+d) */
+/* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */
+
/* H8500 modes */
#define R_H8500_IMM8 1 /* 8 bit immediate */
--- /dev/null
+/* coff information for Zilog Z80
+ Copyright 2005 Free Software Foundation, Inc.
+ Contributed by Arnold Metselaar <arnold_m@operamail.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#define L_LNNO_SIZE 4
+#include "coff/external.h"
+
+/* z80 backend does not use dots in section names. */
+#undef _TEXT
+#define _TEXT "text"
+#undef _DATA
+#define _DATA "data"
+#undef _BSS
+#define _BSS "bss"
+
+/* Type of cpu is stored in flags. */
+#define F_MACHMASK 0xF000
+
+#define Z80MAGIC 0x805A
+
+#define Z80BADMAG(x) (((x).f_magic != Z80MAGIC))
+
+/* Relocation directives. */
+
+/* This format actually has more bits than we need. */
+
+struct external_reloc
+{
+ char r_vaddr[4];
+ char r_symndx[4];
+ char r_offset[4];
+ char r_type[2];
+ char r_stuff[2];
+};
+
+#define RELOC struct external_reloc
+#define RELSZ 16
extern int print_insn_m68hc11 (bfd_vma, disassemble_info *);
extern int print_insn_m68hc12 (bfd_vma, disassemble_info *);
extern int print_insn_m68k (bfd_vma, disassemble_info *);
+extern int print_insn_z80 (bfd_vma, disassemble_info *);
extern int print_insn_z8001 (bfd_vma, disassemble_info *);
extern int print_insn_z8002 (bfd_vma, disassemble_info *);
extern int print_insn_h8300 (bfd_vma, disassemble_info *);
+2005-09-30 Catherine Moore <clm@cm00re.com>
+
+ * bfin.h: New file.
+ * common.h (EM_BLACKFIN): Define.
+
2005-10-08 Paul Brook <paul@codesourcery.com>
* arm.h: Add prototypes for BFD object attribute routines.
+2005-09-30 Catherine Moore <clm@cm00re.com>
+
+ * bfin.h: New file.
+
2005-10-24 Jan Beulich <jbeulich@novell.com>
* ia64.h (enum ia64_opnd): Move memory operand out of set of
+2005-10-25 Arnold Metselaar <arnold.metselaar@planet.nl>
+
+ * Makefile.am: Add support for Z80
+ * Makefile.in: Regenerated
+ * configure.tgt: Add z80-*-coff
+ * emulparams/z80.sh: New file.
+ * emultempl/z80.em: New file.
+ * scripttempl/z80.sc New file.
+ * NEWS: Mention this new support.
+
2005-10-25 Alan Modra <amodra@bigpond.net.au>
* po/ld.pot: Regenerate.
ew65.o \
ez8001.o \
eelf32frvfd.o \
+ ez80.o \
ez8002.o
ALL_64_EMULATIONS = \
ew65.c: $(srcdir)/emulparams/w65.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/w65.sc ${GEN_DEPENDS}
${GENSCRIPTS} w65 "$(tdir_w65)"
+ez80.c: $(srcdir)/emulparams/z80.sh \
+ $(srcdir)/emultempl/generic.em $(srcdir)/emultempl/z80.em \
+ $(srcdir)/scripttempl/z80.sc ${GEN_DEPENDS}
+ ${GENSCRIPTS} z80 "$(tdir_z80)"
ez8001.c: $(srcdir)/emulparams/z8001.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/z8000.sc ${GEN_DEPENDS}
${GENSCRIPTS} z8001 "$(tdir_z8001)"
ew65.o \
ez8001.o \
eelf32frvfd.o \
+ ez80.o \
ez8002.o
ALL_64_EMULATIONS = \
ew65.c: $(srcdir)/emulparams/w65.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/w65.sc ${GEN_DEPENDS}
${GENSCRIPTS} w65 "$(tdir_w65)"
+ez80.c: $(srcdir)/emulparams/z80.sh \
+ $(srcdir)/emultempl/generic.em $(srcdir)/emultempl/z80.em \
+ $(srcdir)/scripttempl/z80.sc ${GEN_DEPENDS}
+ ${GENSCRIPTS} z80 "$(tdir_z80)"
ez8001.c: $(srcdir)/emulparams/z8001.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/z8000.sc ${GEN_DEPENDS}
${GENSCRIPTS} z8001 "$(tdir_z8001)"
-*- text -*-
+* Support for the Z80 processor family has been added.
+
* Add support for the "@<file>" syntax to the command line, so that extra
switches can be read from <file>.
;;
xtensa-*-*) targ_emul=elf32xtensa
;;
+z80-*-coff) targ_emul=z80
+ ;;
z8k-*-coff) targ_emul=z8002; targ_extra_emuls=z8001
;;
*-*-ieee*) targ_emul=vanilla
--- /dev/null
+SCRIPT_NAME=z80
+OUTPUT_FORMAT="coff-z80"
+OUTPUT_ARCH="z80"
+TEXT_START_ADDR=0x100
+EXTRA_EM_FILE=z80
+ARCH=z80
--- /dev/null
+# This shell script emits C code -*- C -*-
+# to keep track of the machine type of Z80 object files
+# It does some substitutions.
+
+LDEMUL_BEFORE_PARSE=gldz80_before_parse
+LDEMUL_RECOGNIZED_FILE=gldz80_recognized_file
+LDEMUL_AFTER_OPEN=gldz80_after_open
+
+cat >>e${EMULATION_NAME}.c <<EOF
+/* --- \begin{z80.em} */
+/* Codes for machine types, bitwise or gives the code to use for the
+ output. */
+#define M_Z80STRICT 1
+#define M_Z80 3
+#define M_Z80FULL 7
+#define M_R800 11
+#define M_Z80ANY 15
+
+/* Bitwise or of the machine types seen so far. */
+static int result_mach_type;
+
+static void
+${LDEMUL_BEFORE_PARSE} (void)
+{
+#ifndef TARGET_ /* I.e., if not generic. */
+ ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
+#endif /* not TARGET_ */
+ result_mach_type = M_Z80STRICT;
+}
+
+
+/* Update result_mach_type. */
+static bfd_boolean
+${LDEMUL_RECOGNIZED_FILE} (lang_input_statement_type *entry)
+{
+ unsigned long mach_type;
+
+ mach_type = bfd_get_mach (entry->the_bfd);
+ switch (mach_type)
+ {
+ case bfd_mach_z80strict:
+ result_mach_type |= M_Z80STRICT;
+ break;
+ case bfd_mach_z80:
+ result_mach_type |= M_Z80;
+ break;
+ case bfd_mach_z80full:
+ result_mach_type |= M_Z80FULL;
+ break;
+ case bfd_mach_r800:
+ result_mach_type |= M_R800;
+ break;
+ default:
+ result_mach_type |= M_Z80ANY;
+ }
+ return FALSE;
+}
+
+/* Set the machine type of the output file based on result_mach_type. */
+static void
+gldz80_after_open (void)
+{
+ unsigned long mach_type;
+
+ switch (result_mach_type)
+ {
+ case M_Z80STRICT:
+ mach_type = bfd_mach_z80strict;
+ break;
+ case M_Z80:
+ mach_type = bfd_mach_z80;
+ break;
+ case M_Z80FULL:
+ mach_type = bfd_mach_z80full;
+ break;
+ case M_R800:
+ mach_type = bfd_mach_r800;
+ break;
+ default:
+ mach_type = 0;
+ }
+ bfd_set_arch_mach (output_bfd, bfd_arch_z80, mach_type);
+}
+/* --- \end{z80.em} */
+EOF
--- /dev/null
+if [ x${LD_FLAG} = x ]
+then
+cat << EOF
+/* Create a cp/m executable; load and execute at 0x100. */
+OUTPUT_FORMAT("binary")
+. = 0x100;
+__Ltext = .;
+ENTRY (__Ltext)
+EOF
+else
+ echo "OUTPUT_FORMAT(\"${OUTPUT_FORMAT}\")"
+fi
+cat <<EOF
+OUTPUT_ARCH("${OUTPUT_ARCH}")
+SECTIONS
+{
+.text : {
+ *(.text)
+ *(text)
+ ${RELOCATING+ __Htext = .;}
+ }
+.data : {
+ ${RELOCATING+ __Ldata = .;}
+ *(.data)
+ *(data)
+ ${RELOCATING+ __Hdata = .;}
+ }
+.bss : {
+ ${RELOCATING+ __Lbss = .;}
+ *(.bss)
+ *(bss)
+ ${RELOCATING+ __Hbss = .;}
+ }
+}
+EOF
# Perform the equivalent of invoking ld_simple_link
# except that we need to massage the output futher.
+ verbose -log "$ld -o tmpdir/asm.x $ldflags tmpdir/asm.o"
catch "exec $ld -o tmpdir/asm.x $ldflags tmpdir/asm.o" exec_output
set exec_output [prune_warnings $exec_output]
}
if ![is_aout_format] {
+ # The z80-coff port defaults to a "binary" like output
+ # file format which does not include a data section.
+ setup_xfail "z80-*-coff"
run_dump_test align2a
+ setup_xfail "z80-*-coff"
run_dump_test align2b
}
run_dump_test align2c
+2005-10-25 Arnold Metselaar <arnold.metselaar@planet.nl>
+
+ * configure.in: Add target architecture bfd_arch_z80.
+ * configure: Regenerated.
+ * disassemble.c (disassembler)<ARCH_z80>: Add case
+ bfd_arch_z80.
+ * z80-dis.c: New file.
+
2005-10-25 Alan Modra <amodra@bigpond.net.au>
* po/POTFILES.in: Regenerate.
xstormy16-ibld.c \
xstormy16-opc.c \
xtensa-dis.c \
+ z80-dis.c \
z8k-dis.c \
z8kgen.c
xstormy16-ibld.lo \
xstormy16-opc.lo \
xtensa-dis.lo \
+ z80-dis.lo \
z8k-dis.lo
OFILES = @BFD_MACHINES@
$(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h $(INCDIR)/ansidecl.h \
sysdep.h ./config.h $(INCDIR)/dis-asm.h $(BFD_H) $(INCDIR)/ansidecl.h \
$(INCDIR)/symcat.h
+z80-dis.lo: z80-dis.c sysdep.h ./config.h $(INCDIR)/ansidecl.h \
+ $(INCDIR)/dis-asm.h $(BFD_H) $(INCDIR)/ansidecl.h $(INCDIR)/symcat.h
z8k-dis.lo: z8k-dis.c sysdep.h ./config.h $(INCDIR)/ansidecl.h \
$(INCDIR)/dis-asm.h $(BFD_H) $(INCDIR)/ansidecl.h $(INCDIR)/symcat.h \
z8k-opc.h
xstormy16-ibld.c \
xstormy16-opc.c \
xtensa-dis.c \
+ z80-dis.c \
z8k-dis.c \
z8kgen.c
xstormy16-ibld.lo \
xstormy16-opc.lo \
xtensa-dis.lo \
+ z80-dis.lo \
z8k-dis.lo
OFILES = @BFD_MACHINES@
$(INCDIR)/ansidecl.h $(INCDIR)/libiberty.h $(INCDIR)/ansidecl.h \
sysdep.h ./config.h $(INCDIR)/dis-asm.h $(BFD_H) $(INCDIR)/ansidecl.h \
$(INCDIR)/symcat.h
+z80-dis.lo: z80-dis.c sysdep.h ./config.h $(INCDIR)/ansidecl.h \
+ $(INCDIR)/dis-asm.h $(BFD_H) $(INCDIR)/ansidecl.h $(INCDIR)/symcat.h
z8k-dis.lo: z8k-dis.c sysdep.h ./config.h $(INCDIR)/ansidecl.h \
$(INCDIR)/dis-asm.h $(BFD_H) $(INCDIR)/ansidecl.h $(INCDIR)/symcat.h \
z8k-opc.h
bfd_we32k_arch) ;;
bfd_xstormy16_arch) ta="$ta xstormy16-asm.lo xstormy16-desc.lo xstormy16-dis.lo xstormy16-ibld.lo xstormy16-opc.lo" using_cgen=yes ;;
bfd_xtensa_arch) ta="$ta xtensa-dis.lo" ;;
+ bfd_z80_arch) ta="$ta z80-dis.lo" ;;
bfd_z8k_arch) ta="$ta z8k-dis.lo" ;;
"") ;;
bfd_we32k_arch) ;;
bfd_xstormy16_arch) ta="$ta xstormy16-asm.lo xstormy16-desc.lo xstormy16-dis.lo xstormy16-ibld.lo xstormy16-opc.lo" using_cgen=yes ;;
bfd_xtensa_arch) ta="$ta xtensa-dis.lo" ;;
+ bfd_z80_arch) ta="$ta z80-dis.lo" ;;
bfd_z8k_arch) ta="$ta z8k-dis.lo" ;;
"") ;;
#define ARCH_w65
#define ARCH_xstormy16
#define ARCH_xtensa
+#define ARCH_z80
#define ARCH_z8k
#define INCLUDE_SHMEDIA
#endif
disassemble = print_insn_xtensa;
break;
#endif
+#ifdef ARCH_z80
+ case bfd_arch_z80:
+ disassemble = print_insn_z80;
+ break;
+#endif
#ifdef ARCH_z8k
case bfd_arch_z8k:
if (bfd_get_mach(abfd) == bfd_mach_z8001)
--- /dev/null
+/* Print Z80 and R800 instructions
+ Copyright 2005 Free Software Foundation, Inc.
+ Contributed by Arnold Metselaar <arnold_m@operamail.com>
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#include "sysdep.h"
+#include "dis-asm.h"
+#include <stdio.h>
+
+struct buffer
+{
+ bfd_vma base;
+ int n_fetch;
+ int n_used;
+ char data[4];
+} ;
+
+typedef int (*func)(struct buffer *, disassemble_info *, char *);
+
+struct tab_elt
+{
+ unsigned char val;
+ unsigned char mask;
+ func fp;
+ char * text;
+} ;
+
+#define TXTSIZ 16
+/* Names of 16-bit registers. */
+static char * rr_str[] = { "bc", "de", "hl", "sp" };
+/* Names of 8-bit registers. */
+static char * r_str[] = { "b", "c", "d", "e", "h", "l", "(hl)", "a" };
+/* Texts for condition codes. */
+static char * cc_str[] = { "nz", "z", "nc", "c", "po", "pe", "p", "m" };
+/* Instruction names for 8-bit arithmetic, operand "a" is often implicit */
+static char * arit_str[] =
+{
+ "add a,", "adc a,", "sub ", "sbc a,", "and ", "xor ", "or ", "cp "
+} ;
+\f
+static int
+fetch_data (struct buffer *buf, disassemble_info * info, int n)
+{
+ int r;
+
+ if (buf->n_fetch + n > 4)
+ abort ();
+
+ r = info->read_memory_func (buf->base + buf->n_fetch,
+ buf->data + buf->n_fetch,
+ n, info);
+ if (r == 0)
+ buf->n_fetch += n;
+ return !r;
+}
+
+static int
+prt (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ info->fprintf_func (info->stream, "%s", txt);
+ buf->n_used = buf->n_fetch;
+ return 1;
+}
+
+static int
+prt_e (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ char e;
+ int target_addr;
+
+ if (fetch_data (buf, info, 1))
+ {
+ e = buf->data[1];
+ target_addr = (buf->base + 2 + e) & 0xffff;
+ buf->n_used = buf->n_fetch;
+ info->fprintf_func (info->stream, "%s0x%04x", txt, target_addr);
+ }
+ else
+ buf->n_used = -1;
+
+ return buf->n_used;
+}
+
+static int
+jr_cc (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ char mytxt[TXTSIZ];
+
+ snprintf (mytxt, TXTSIZ, txt, cc_str[(buf->data[0] >> 3) & 3]);
+ return prt_e (buf, info, mytxt);
+}
+
+static int
+prt_nn (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ int nn;
+ unsigned char *p;
+
+ p = (unsigned char*) buf->data + buf->n_fetch;
+ if (fetch_data (buf, info, 2))
+ {
+ nn = p[0] + (p[1] << 8);
+ info->fprintf_func (info->stream, txt, nn);
+ buf->n_used = buf->n_fetch;
+ }
+ else
+ buf->n_used = -1;
+ return buf->n_used;
+}
+
+static int
+prt_rr_nn (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ char mytxt[TXTSIZ];
+
+ snprintf (mytxt, TXTSIZ, txt, rr_str[(buf->data[0] >> 4) & 3]);
+ return prt_nn (buf, info, mytxt);
+}
+
+static int
+prt_rr (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ info->fprintf_func (info->stream, "%s%s", txt,
+ rr_str[(buf->data[buf->n_fetch - 1] >> 4) & 3]);
+ buf->n_used = buf->n_fetch;
+ return buf->n_used;
+}
+
+static int
+prt_n (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ int n;
+ unsigned char *p;
+
+ p = (unsigned char*) buf->data + buf->n_fetch;
+
+ if (fetch_data (buf, info, 1))
+ {
+ n = p[0];
+ info->fprintf_func (info->stream, txt, n);
+ buf->n_used = buf->n_fetch;
+ }
+ else
+ buf->n_used = -1;
+
+ return buf->n_used;
+}
+
+static int
+ld_r_n (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ char mytxt[TXTSIZ];
+
+ snprintf (mytxt, TXTSIZ, txt, r_str[(buf->data[0] >> 3) & 7]);
+ return prt_n (buf, info, mytxt);
+}
+
+static int
+prt_r (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ info->fprintf_func (info->stream, txt,
+ r_str[(buf->data[buf->n_fetch - 1] >> 3) & 7]);
+ buf->n_used = buf->n_fetch;
+ return buf->n_used;
+}
+
+static int
+ld_r_r (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ info->fprintf_func (info->stream, txt,
+ r_str[(buf->data[buf->n_fetch - 1] >> 3) & 7],
+ r_str[buf->data[buf->n_fetch - 1] & 7]);
+ buf->n_used = buf->n_fetch;
+ return buf->n_used;
+}
+
+static int
+arit_r (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ info->fprintf_func (info->stream, txt,
+ arit_str[(buf->data[buf->n_fetch - 1] >> 3) & 7],
+ r_str[buf->data[buf->n_fetch - 1] & 7]);
+ buf->n_used = buf->n_fetch;
+ return buf->n_used;
+}
+
+static int
+prt_cc (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ info->fprintf_func (info->stream, "%s%s", txt,
+ cc_str[(buf->data[0] >> 3) & 7]);
+ buf->n_used = buf->n_fetch;
+ return buf->n_used;
+}
+
+static int
+pop_rr (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ static char *rr_stack[] = { "bc","de","hl","af"};
+
+ info->fprintf_func (info->stream, "%s %s", txt,
+ rr_stack[(buf->data[0] >> 4) & 3]);
+ buf->n_used = buf->n_fetch;
+ return buf->n_used;
+}
+
+
+static int
+jp_cc_nn (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ char mytxt[TXTSIZ];
+
+ snprintf (mytxt,TXTSIZ,
+ "%s%s,0x%%04x", txt, cc_str[(buf->data[0] >> 3) & 7]);
+ return prt_nn (buf, info, mytxt);
+}
+
+static int
+arit_n (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ char mytxt[TXTSIZ];
+
+ snprintf (mytxt,TXTSIZ, txt, arit_str[(buf->data[0] >> 3) & 7]);
+ return prt_n (buf, info, mytxt);
+}
+
+static int
+rst (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ info->fprintf_func (info->stream, txt, buf->data[0] & 0x38);
+ buf->n_used = buf->n_fetch;
+ return buf->n_used;
+}
+
+\f
+static int
+cis (struct buffer *buf, disassemble_info * info, char *txt ATTRIBUTE_UNUSED)
+{
+ static char * opar[] = { "ld", "cp", "in", "out" };
+ char * op;
+ char c;
+
+ c = buf->data[1];
+ op = ((0x13 & c) == 0x13) ? "ot" : (opar[c & 3]);
+ info->fprintf_func (info->stream,
+ "%s%c%s", op,
+ (c & 0x08) ? 'd' : 'i',
+ (c & 0x10) ? "r" : "");
+ buf->n_used = 2;
+ return buf->n_used;
+}
+
+static int
+dump (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ int i;
+
+ info->fprintf_func (info->stream, "defb ");
+ for (i = 0; txt[i]; ++i)
+ info->fprintf_func (info->stream, i ? ", 0x%02x" : "0x%02x",
+ (unsigned char) buf->data[i]);
+ buf->n_used = i;
+ return buf->n_used;
+}
+\f
+/* Table to disassemble machine codes with prefix 0xED. */
+struct tab_elt opc_ed[] =
+{
+ { 0x70, 0xFF, prt, "in f,(c)" },
+ { 0x70, 0xFF, dump, "xx" },
+ { 0x40, 0xC7, prt_r, "in %s,(c)" },
+ { 0x71, 0xFF, prt, "out (c),0" },
+ { 0x70, 0xFF, dump, "xx" },
+ { 0x41, 0xC7, prt_r, "out (c),%s" },
+ { 0x42, 0xCF, prt_rr, "sbc hl," },
+ { 0x43, 0xCF, prt_rr_nn, "ld (0x%%04x),%s" },
+ { 0x44, 0xFF, prt, "neg" },
+ { 0x45, 0xFF, prt, "retn" },
+ { 0x46, 0xFF, prt, "im 0" },
+ { 0x47, 0xFF, prt, "ld i,a" },
+ { 0x4A, 0xCF, prt_rr, "adc hl," },
+ { 0x4B, 0xCF, prt_rr_nn, "ld %s,(0x%%04x)" },
+ { 0x4D, 0xFF, prt, "reti" },
+ { 0x56, 0xFF, prt, "im 1" },
+ { 0x57, 0xFF, prt, "ld a,i" },
+ { 0x5E, 0xFF, prt, "im 2" },
+ { 0x67, 0xFF, prt, "rrd" },
+ { 0x6F, 0xFF, prt, "rld" },
+ { 0xA0, 0xE4, cis, "" },
+ { 0xC3, 0xFF, prt, "muluw hl,bc" },
+ { 0xC5, 0xE7, prt_r, "mulub a,%s" },
+ { 0xF3, 0xFF, prt, "muluw hl,sp" },
+ { 0x00, 0x00, dump, "xx" }
+};
+
+static int
+pref_ed (struct buffer * buf, disassemble_info * info,
+ char* txt ATTRIBUTE_UNUSED)
+{
+ struct tab_elt *p;
+
+ if (fetch_data(buf, info, 1))
+ {
+ for (p = opc_ed; p->val != (buf->data[1] & p->mask); ++p)
+ ;
+ p->fp (buf, info, p->text);
+ }
+ else
+ buf->n_used = -1;
+
+ return buf->n_used;
+}
+\f
+/* Instruction names for the instructions addressing single bits. */
+static char *cb1_str[] = { "", "bit", "res", "set"};
+/* Instruction names for shifts and rotates. */
+static char *cb2_str[] =
+{
+ "rlc", "rrc", "rl", "rr", "sla", "sra", "sli", "srl"
+};
+
+static int
+pref_cb (struct buffer * buf, disassemble_info * info,
+ char* txt ATTRIBUTE_UNUSED)
+{
+ if (fetch_data (buf, info, 1))
+ {
+ buf->n_used = 2;
+ if ((buf->data[1] & 0xc0) == 0)
+ info->fprintf_func (info->stream, "%s %s",
+ cb2_str[(buf->data[1] >> 3) & 7],
+ r_str[buf->data[1] & 7]);
+ else
+ info->fprintf_func (info->stream, "%s %d,%s",
+ cb1_str[(buf->data[1] >> 6) & 3],
+ (buf->data[1] >> 3) & 7,
+ r_str[buf->data[1] & 7]);
+ }
+ else
+ buf->n_used = -1;
+
+ return buf->n_used;
+}
+\f
+static int
+addvv (struct buffer * buf, disassemble_info * info, char* txt)
+{
+ info->fprintf_func (info->stream, "add %s,%s", txt, txt);
+
+ return buf->n_used = buf->n_fetch;
+}
+
+static int
+ld_v_v (struct buffer * buf, disassemble_info * info, char* txt)
+{
+ char mytxt[TXTSIZ];
+
+ snprintf (mytxt, TXTSIZ, "ld %s%%s,%s%%s", txt, txt);
+ return ld_r_r (buf, info, mytxt);
+}
+
+static int
+prt_d (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ int d;
+ signed char *p;
+
+ p = (unsigned char*) buf->data + buf->n_fetch;
+
+ if (fetch_data (buf, info, 1))
+ {
+ d = p[0];
+ info->fprintf_func (info->stream, txt, d);
+ buf->n_used = buf->n_fetch;
+ }
+ else
+ buf->n_used = -1;
+
+ return buf->n_used;
+}
+
+static int
+prt_d_n (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ char mytxt[TXTSIZ];
+ int d;
+ signed char *p;
+
+ p = (unsigned char*) buf->data + buf->n_fetch;
+
+ if (fetch_data (buf, info, 1))
+ {
+ d = p[0];
+ snprintf (mytxt, TXTSIZ, txt, d);
+ return prt_n (buf, info, mytxt);
+ }
+ else
+ buf->n_used = -1;
+
+ return buf->n_used;
+}
+
+static int
+arit_d (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ char mytxt[TXTSIZ];
+ unsigned char c;
+
+ c = buf->data[buf->n_fetch - 1];
+ snprintf (mytxt, TXTSIZ, txt, arit_str[(c >> 3) & 7]);
+ return prt_d (buf, info, mytxt);
+}
+
+static int
+ld_r_d (struct buffer *buf, disassemble_info * info, char *txt)
+{
+ char mytxt[TXTSIZ];
+ unsigned char c;
+
+ c = buf->data[buf->n_fetch - 1];
+ snprintf (mytxt, TXTSIZ, txt, r_str[(c >> 3) & 7]);
+ return prt_d (buf, info, mytxt);
+}
+
+static int
+ld_d_r(struct buffer *buf, disassemble_info * info, char *txt)
+{
+ char mytxt[TXTSIZ];
+ unsigned char c;
+
+ c = buf->data[buf->n_fetch - 1];
+ snprintf (mytxt, TXTSIZ, txt, r_str[c & 7]);
+ return prt_d (buf, info, mytxt);
+}
+
+static int
+pref_xd_cb (struct buffer * buf, disassemble_info * info, char* txt)
+{
+ if (fetch_data (buf, info, 2))
+ {
+ int d;
+ char arg[TXTSIZ];
+ signed char *p;
+
+ buf->n_used = 4;
+ p = buf->data;
+ d = p[2];
+
+ if (((p[3] & 0xC0) == 0x40) || ((p[3] & 7) == 0x06))
+ snprintf (arg, TXTSIZ, "(%s+%d)", txt, d);
+ else
+ snprintf (arg, TXTSIZ, "(%s+%d),%s", txt, d, r_str[p[3] & 7]);
+
+ if ((p[3] & 0xc0) == 0)
+ info->fprintf_func (info->stream, "%s %s",
+ cb2_str[(buf->data[3] >> 3) & 7],
+ arg);
+ else
+ info->fprintf_func (info->stream, "%s %d,%s",
+ cb1_str[(buf->data[3] >> 6) & 3],
+ (buf->data[3] >> 3) & 7,
+ arg);
+ }
+ else
+ buf->n_used = -1;
+
+ return buf->n_used;
+}
+\f
+/* Table to disassemble machine codes with prefix 0xDD or 0xFD. */
+static struct tab_elt opc_ind[] =
+{
+ { 0x24, 0xF7, prt_r, "inc %s%%s" },
+ { 0x25, 0xF7, prt_r, "dec %s%%s" },
+ { 0x26, 0xF7, ld_r_n, "ld %s%%s,0x%%%%02x" },
+ { 0x21, 0xFF, prt_nn, "ld %s,0x%%04x" },
+ { 0x22, 0xFF, prt_nn, "ld (0x%%04x),%s" },
+ { 0x2A, 0xFF, prt_nn, "ld %s,(0x%%04x)" },
+ { 0x23, 0xFF, prt, "inc %s" },
+ { 0x2B, 0xFF, prt, "dec %s" },
+ { 0x29, 0xFF, addvv, "%s" },
+ { 0x09, 0xCF, prt_rr, "add %s," },
+ { 0x34, 0xFF, prt_d, "inc (%s+%%d)" },
+ { 0x35, 0xFF, prt_d, "dec (%s+%%d)" },
+ { 0x36, 0xFF, prt_d_n, "ld (%s+%%d),0x%%02x" },
+
+ { 0x76, 0xFF, dump, "h" },
+ { 0x46, 0xC7, ld_r_d, "ld %%s,(%s+%%%%d)" },
+ { 0x70, 0xF8, ld_d_r, "ld (%s+%%%%d),%%s" },
+ { 0x64, 0xF6, ld_v_v, "%s" },
+ { 0x60, 0xF0, ld_r_r, "ld %s%%s,%%s" },
+ { 0x44, 0xC6, ld_r_r, "ld %%s,%s%%s" },
+
+ { 0x86, 0xC7, arit_d, "%%s(%s+%%%%d)" },
+ { 0x84, 0xC6, arit_r, "%%s%s%%s" },
+
+ { 0xE1, 0xFF, prt, "pop %s" },
+ { 0xE5, 0xFF, prt, "push %s" },
+ { 0xCB, 0xFF, pref_xd_cb, "%s" },
+ { 0xE3, 0xFF, prt, "ex (sp),%s" },
+ { 0xE9, 0xFF, prt, "jp (%s)" },
+ { 0xF9, 0xFF, prt, "ld sp,%s" },
+ { 0x00, 0x00, dump, "?" },
+} ;
+
+static int
+pref_ind (struct buffer * buf, disassemble_info * info, char* txt)
+{
+ if (fetch_data (buf, info, 1))
+ {
+ char mytxt[TXTSIZ];
+ struct tab_elt *p;
+
+ for (p = opc_ind; p->val != (buf->data[1] & p->mask); ++p)
+ ;
+ snprintf (mytxt, TXTSIZ, p->text, txt);
+ p->fp (buf, info, mytxt);
+ }
+ else
+ buf->n_used = -1;
+
+ return buf->n_used;
+}
+
+/* Table to disassemble machine codes without prefix. */
+static struct tab_elt opc_main[] =
+{
+ { 0x00, 0xFF, prt, "nop" },
+ { 0x01, 0xCF, prt_rr_nn, "ld %s,0x%%04x" },
+ { 0x02, 0xFF, prt, "ld (bc),a" },
+ { 0x03, 0xCF, prt_rr, "inc " },
+ { 0x04, 0xC7, prt_r, "inc %s" },
+ { 0x05, 0xC7, prt_r, "dec %s" },
+ { 0x06, 0xC7, ld_r_n, "ld %s,0x%%02x" },
+ { 0x07, 0xFF, prt, "rlca" },
+ { 0x08, 0xFF, prt, "ex af,af'" },
+ { 0x09, 0xCF, prt_rr, "add hl," },
+ { 0x0A, 0xFF, prt, "ld a,(bc)" },
+ { 0x0B, 0xCF, prt_rr, "dec " },
+ { 0x0F, 0xFF, prt, "rrca" },
+ { 0x10, 0xFF, prt_e, "djnz " },
+ { 0x12, 0xFF, prt, "ld (de),a" },
+ { 0x17, 0xFF, prt, "rla" },
+ { 0x18, 0xFF, prt_e, "jr "},
+ { 0x1A, 0xFF, prt, "ld a,(de)" },
+ { 0x1F, 0xFF, prt, "rra" },
+ { 0x20, 0xE7, jr_cc, "jr %s,"},
+ { 0x22, 0xFF, prt_nn, "ld (0x%04x),hl" },
+ { 0x27, 0xFF, prt, "daa"},
+ { 0x2A, 0xFF, prt_nn, "ld hl,(0x%04x)" },
+ { 0x2F, 0xFF, prt, "cpl" },
+ { 0x32, 0xFF, prt_nn, "ld (0x%04x),a" },
+ { 0x37, 0xFF, prt, "scf" },
+ { 0x3A, 0xFF, prt_nn, "ld a,(0x%04x)" },
+ { 0x3F, 0xFF, prt, "ccf" },
+
+ { 0x76, 0xFF, prt, "halt" },
+ { 0x40, 0xC0, ld_r_r, "ld %s,%s"},
+
+ { 0x80, 0xC0, arit_r, "%s%s" },
+
+ { 0xC0, 0xC7, prt_cc, "ret " },
+ { 0xC1, 0xCF, pop_rr, "pop" },
+ { 0xC2, 0xC7, jp_cc_nn, "jp " },
+ { 0xC3, 0xFF, prt_nn, "jp 0x%04x" },
+ { 0xC4, 0xC7, jp_cc_nn, "call " },
+ { 0xC5, 0xCF, pop_rr, "push" },
+ { 0xC6, 0xC7, arit_n, "%s0x%%02x" },
+ { 0xC7, 0xC7, rst, "rst 0x%02x" },
+ { 0xC9, 0xFF, prt, "ret" },
+ { 0xCB, 0xFF, pref_cb, "" },
+ { 0xCD, 0xFF, prt_nn, "call 0x%04x" },
+ { 0xD3, 0xFF, prt_n, "out (0x%02x),a" },
+ { 0xD9, 0xFF, prt, "exx" },
+ { 0xDB, 0xFF, prt_n, "in a,(0x%02x)" },
+ { 0xDD, 0xFF, pref_ind, "ix" },
+ { 0xE3, 0xFF, prt, "ex (sp),hl" },
+ { 0xE9, 0xFF, prt, "jp (hl)" },
+ { 0xEB, 0xFF, prt, "ex de,hl" },
+ { 0xED, 0xFF, pref_ed, ""},
+ { 0xF3, 0xFF, prt, "di" },
+ { 0xF9, 0xFF, prt, "ld sp,hl" },
+ { 0xFB, 0xFF, prt, "ei" },
+ { 0xFD, 0xFF, pref_ind, "iy" },
+ { 0x00, 0x00, prt, "????" },
+} ;
+
+int
+print_insn_z80 (bfd_vma addr, disassemble_info * info)
+{
+ struct buffer buf;
+ struct tab_elt *p;
+
+ buf.base = addr;
+ buf.n_fetch = 0;
+ buf.n_used = 0;
+
+ if (! fetch_data (& buf, info, 1))
+ return -1;
+
+ for (p = opc_main; p->val != (buf.data[0] & p->mask); ++p)
+ ;
+ p->fp (& buf, info, p->text);
+
+ return buf.n_used;
+}
projects / binutils-gdb.git / commitdiff