From: Richard Stallman Date: Sun, 19 Jan 1992 04:47:58 +0000 (+0000) Subject: Initial revision X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=beb3b34a38e833681c483638512e3baf1057d140;p=gcc.git Initial revision From-SVN: r218 --- diff --git a/gcc/config/m68k/crds.h b/gcc/config/m68k/crds.h new file mode 100644 index 00000000000..91c4047801f --- /dev/null +++ b/gcc/config/m68k/crds.h @@ -0,0 +1,603 @@ +/* Definitions of target machine for GNU compiler. + Charles River Data Systems UNiverse/32 + + Written by Gary E. Miller + bug reports to Gary_Edmunds_Miller@cup.portal.com + + Copyright (C) 1987 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC 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. + +GNU CC 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 GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#define MOTOROLA /* Use Motorola syntax rather than "MIT" */ +#define SGS /* Uses SGS assembler */ +#define SGS_SWITCH_TABLES /* Different switch table handling */ +#define CRDS /* Charles River Data Systems assembler */ + +#include "m68k.h" + +/* Without STRUCTURE_SIZE_BOUNDARY, we can't ensure that structures are + aligned such that we can correctly extract bitfields from them. + Someone should check whether the usual compiler on the crds machine + provides the equivalent behavior of STRUCTURE_SIZE_BOUNDARY. */ +#error This doesn't define STRUCTURE_SIZE_BOUNDARY + +/* See m68k.h. 0 means 680[01]0 with no 68881. */ + +#undef TARGET_DEFAULT +#define TARGET_DEFAULT 0 + +/* special flags to the unos assembler. */ + +#undef ASM_SPEC +#define ASM_SPEC "-g" + +#undef LIB_SPEC +#define LIB_SPEC "%{!p:%{!pg:-lunos}}%{p:-lc_p}%{pg:-lc_p}" + +#undef STARTFILE_SPEC +#define STARTFILE_SPEC \ + "%{pg:gcrt0.o%s}%{!pg:%{p:mc68rt0.o%s}%{!p:c68rt0.o%s}}" + +/* CC1 spec */ +#if 0 +/* c.sac only used in _s_call_r() in libunos.a and malloc() in libmalloc.a */ +/* so we do not need to bother ! */ +#define CC1_SPEC "-fpcc-struct-return" +#endif + +/* -O2 for MAX optimization */ +#undef CC1_SPEC +#define CC1_SPEC "%{O2:-fstrength-reduce}" + +/* cpp has to support a #sccs directive for the /usr/include files */ + +#define SCCS_DIRECTIVE + +/* Make output for SDB. */ + +/* #define SDB_DEBUGGING_INFO UNOS casm has no debugging :-( */ + +/* UNOS has vprintf() */ + +#define HAVE_VPRINTF + +/* UNOS need stack probe :-( */ + +#define HAVE_probe 1 +#define gen_probe() gen_rtx(ASM_INPUT, VOIDmode, "tstb -2048(sp)\t;probe\n") + +/* use memcpy, memset instead of bcopy, etc. */ + +#define TARGET_MEM_FUNCTIONS + +/* Don't try to define `gcc_compiled.' since the assembler might not + accept symbols with periods and GDB doesn't run on this machine anyway. */ +#define ASM_IDENTIFY_GCC(FILE) + +/* Define __HAVE_68881__ in preprocessor if -m68881 is specified. + This will control the use of inline 68881 insns in certain macros. */ + +#undef CPP_SPEC +#define CPP_SPEC "%{m68881:-D__HAVE_68881__}" + +/* Names to predefine in the preprocessor for this target machine. */ + +#undef CPP_PREDEFINES +#define CPP_PREDEFINES "-Dmc68k -DM68000 -Dmc68000 -Dunos -Dunix" + +/* Register in which address to store a structure value + is passed to a function. */ +/* unos uses ".comm c.sac" returns &c.sac in d0 */ +/* make pointer to c.sac ? +#undef STRUCT_VALUE_REGNUM +#define STRUCT_VALUE gen_rtx(MEM, Pmode, gen_rtx( , , ) ) +*/ + +#define EXTRA_SECTIONS in_bss + +#define EXTRA_SECTION_FUNCTIONS \ +void \ +bss_section () \ +{ \ + if (in_section != in_bss) \ + { \ + fprintf (asm_out_file, ".bss\n"); \ + in_section = in_bss; \ + } \ +} + +/* Specify how to pad function arguments. + Value should be `upward', `downward' or `none'. + Same as the default, except no padding for large or variable-size args. */ + +#define FUNCTION_ARG_PADDING(MODE, TYPE) \ + (((MODE) == BLKmode \ + ? ((TYPE) && TREE_CODE (TYPE_SIZE (TYPE)) == INTEGER_CST \ + && int_size_in_bytes (TYPE) < PARM_BOUNDARY / BITS_PER_UNIT) \ + : GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY) \ + ? downward : none) + +/* Override part of the obstack macros. */ + +#define __PTR_TO_INT(P) ((int)(P)) +#define __INT_TO_PTR(P) ((char *)(P)) + +/* Override parts of m68k.h to fit the CRuDS assembler. */ + +#undef TARGET_VERSION +#define TARGET_VERSION fprintf (stderr, " (68k, CRDS/UNOS)"); + +/* Specify extra dir to search for include files. */ +#define SYSTEM_INCLUDE_DIR "/include" + +/* Control the assembler format that we output. */ + +/* Output at beginning of assembler file. */ + +#undef ASM_FILE_START +#define ASM_FILE_START(FILE) \ + fprintf (FILE, ";#NO_APP\n"); + +/* Output to assembler file text saying following lines + may contain character constants, extra white space, comments, etc. */ + +#undef ASM_APP_ON +#define ASM_APP_ON ";#APP\n" + +/* Output to assembler file text saying following lines + no longer contain unusual constructs. */ + +#undef ASM_APP_OFF +#define ASM_APP_OFF ";#NO_APP\n" + +/* This is how to output an assembler line defining a `double' constant. */ + +#undef ASM_OUTPUT_DOUBLE +#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ +do { union { double f; long l[2];} tem; \ + tem.f = (VALUE); \ + fprintf (FILE, "\t.long 0x%x, 0x%x\n", tem.l[0], tem.l[1]); \ + } while (0) + +/*unos has no .skip :-( */ +#undef ASM_OUTPUT_SKIP +#define ASM_OUTPUT_SKIP(FILE,SIZE) \ + fprintf (FILE, "\t. = . + %u\n", (SIZE)); + +/* This says how to output an assembler line + to define a local common symbol. */ +/* should use bss_section instead of data_section but this makes casm die ? */ + +#undef ASM_OUTPUT_LOCAL +#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ +{ data_section (); \ + if ((SIZE) > 1) fprintf (FILE, "\t.even\n"); \ + assemble_name ((FILE), (NAME)); \ + fprintf ((FILE), ":\t. = . + %u\n", (ROUNDED));} + +/* This is how to output an insn to push a register on the stack. + It need not be very fast code. */ + +#undef ASM_OUTPUT_REG_PUSH +#define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \ + fprintf (FILE, "\tmovel %s,-(sp)\n", reg_names[REGNO]) + +/* This is how to output an insn to pop a register from the stack. + It need not be very fast code. */ + +#undef ASM_OUTPUT_REG_POP +#define ASM_OUTPUT_REG_POP(FILE,REGNO) \ + fprintf (FILE, "\tmovel (sp)+,%s\n", reg_names[REGNO]) + +#undef ASM_OUTPUT_ASCII +#define ASM_OUTPUT_ASCII(FILE, P , SIZE) \ +{ int i; \ + fprintf ((FILE), "\t.ascii \""); \ + for (i = 0; i < (SIZE); i++) \ + { \ + register int c = (P)[i]; \ + if (i != 0 && (i / 200) * 200 == i) \ + fprintf ((FILE), "\"\n\t.ascii \""); \ + if (c >= ' ' && c < 0177) { \ + if (c != '\"' && c != '\\') { \ + putc (c, (FILE)); \ + continue; \ + } \ + } \ + /* brain dead asm doesn't understand char escapes */ \ + fprintf ((FILE), "\"\n\t.byte\t%d\n\t.ascii \"", c); \ + } \ + fprintf ((FILE), "\"\n"); \ + } + + +/* Change all JBxx to Bxx. Also change all DBRA to DBF. + Also change divs.l, etc., to divs, etc. But don't change divsl.l. */ + +#define ASM_OUTPUT_OPCODE(FILE, PTR) \ +{ if ((PTR)[0] == 'j' && (PTR)[1] == 'b') \ + { ++(PTR); } \ + else if ((PTR)[0] == 'd') \ + { \ + if (!strncmp ((PTR), "dbra", 4)) \ + { fprintf ((FILE), "dbf"); (PTR) += 4; } \ + else if (!strncmp ((PTR), "div", 3) && (PTR)[5] == ' ') \ + { fprintf ((FILE), "div%c", (PTR)[3]); (PTR) += 6; } \ + } \ +} + + +/* Print operand X (an rtx) in assembler syntax to file FILE. + CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. + For `%' followed by punctuation, CODE is the punctuation and X is null. + + On the 68000, we use several CODE characters: + '.' for dot needed in Motorola-style opcode names. + '-' for an operand pushing on the stack: + sp@-, -(sp) or -(%sp) depending on the style of syntax. + '+' for an operand pushing on the stack: + sp@+, (sp)+ or (%sp)+ depending on the style of syntax. + '@' for a reference to the top word on the stack: + sp@, (sp) or (%sp) depending on the style of syntax. + '#' for an immediate operand prefix (# in MIT and Motorola syntax + but & in SGS syntax, $ in unos syntax). + '!' for the cc register (used in an `and to cc' insn). + + 'b' for byte insn (no effect, on the Sun; this is for the ISI). + 'd' to force memory addressing to be absolute, not relative. + 'f' for float insn (print a CONST_DOUBLE as a float rather than in hex) + 'w' for FPA insn (print a CONST_DOUBLE as a SunFPA constant rather + than directly). Second part of 'y' below. + 'x' for float insn (print a CONST_DOUBLE as a float rather than in hex), + or print pair of registers as rx:ry. + 'y' for a FPA insn (print pair of registers as rx:ry). This also outputs + CONST_DOUBLE's as SunFPA constant RAM registers if + possible, so it should not be used except for the SunFPA. */ + +#undef PRINT_OPERAND_PUNCT_VALID_P +#define PRINT_OPERAND_PUNCT_VALID_P(CODE) \ + ((CODE) == '.' || (CODE) == '#' || (CODE) == '-' \ + || (CODE) == '+' || (CODE) == '@' || (CODE) == '!') + +#undef PRINT_OPERAND +#define PRINT_OPERAND(FILE, X, CODE) \ +{ int i; \ + if (CODE == '.') ; \ + else if (CODE == '#') fprintf (FILE, "$"); \ + else if (CODE == '-') fprintf (FILE, "-(sp)"); \ + else if (CODE == '+') fprintf (FILE, "(sp)+"); \ + else if (CODE == '@') fprintf (FILE, "(sp)"); \ + else if (CODE == '!') fprintf (FILE, "cc"); \ + else if (GET_CODE (X) == REG) \ + { if (REGNO (X) < 16 && (CODE == 'y' || CODE == 'x') && GET_MODE (X) == DFmode) \ + fprintf (FILE, "%s:%s", reg_names[REGNO (X)], reg_names[REGNO (X)+1]); \ + else \ + fprintf (FILE, "%s", reg_names[REGNO (X)]); \ + } \ + else if (GET_CODE (X) == MEM) \ + { \ + output_address (XEXP (X, 0)); \ + if (CODE == 'd' && ! TARGET_68020 \ + && CONSTANT_ADDRESS_P (XEXP (X, 0))) \ + /* fprintf (FILE, ".l") */; \ + } \ + else if ((CODE == 'y' || CODE == 'w') \ + && GET_CODE(X) == CONST_DOUBLE \ + && (i = standard_sun_fpa_constant_p (X))) \ + fprintf (FILE, "%%%d", i & 0x1ff); \ + else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \ + { union { double d; int i[2]; } u; \ + union { float f; int i; } u1; \ + u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ + u1.f = u.d; \ + if (CODE == 'f') \ + ASM_OUTPUT_FLOAT_OPERAND (FILE, u1.f); \ + else \ + fprintf (FILE, "$0x%x", u1.i); } \ + else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \ + { union { double d; int i[2]; } u; \ + u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ + ASM_OUTPUT_DOUBLE_OPERAND (FILE, u.d); } \ + else { putc ('$', FILE); output_addr_const (FILE, X); }} + +/* Note that this contains a kludge that knows that the only reason + we have an address (plus (label_ref...) (reg...)) + is in the insn before a tablejump, and we know that m68k.md + generates a label LInnn: on such an insn. */ +#undef PRINT_OPERAND_ADDRESS +#define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ +{ register rtx reg1, reg2, breg, ireg; \ + register rtx addr = ADDR; \ + rtx offset; \ + switch (GET_CODE (addr)) \ + { \ + case REG: \ + fprintf (FILE, "(%s)", reg_names[REGNO (addr)]); \ + break; \ + case PRE_DEC: \ + fprintf (FILE, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]); \ + break; \ + case POST_INC: \ + fprintf (FILE, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]); \ + break; \ + case PLUS: \ + reg1 = 0; reg2 = 0; \ + ireg = 0; breg = 0; \ + offset = 0; \ + if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \ + { \ + offset = XEXP (addr, 0); \ + addr = XEXP (addr, 1); \ + } \ + else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \ + { \ + offset = XEXP (addr, 1); \ + addr = XEXP (addr, 0); \ + } \ + if (GET_CODE (addr) != PLUS) ; \ + else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \ + { \ + reg1 = XEXP (addr, 0); \ + addr = XEXP (addr, 1); \ + } \ + else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \ + { \ + reg1 = XEXP (addr, 1); \ + addr = XEXP (addr, 0); \ + } \ + else if (GET_CODE (XEXP (addr, 0)) == MULT) \ + { \ + reg1 = XEXP (addr, 0); \ + addr = XEXP (addr, 1); \ + } \ + else if (GET_CODE (XEXP (addr, 1)) == MULT) \ + { \ + reg1 = XEXP (addr, 1); \ + addr = XEXP (addr, 0); \ + } \ + else if (GET_CODE (XEXP (addr, 0)) == REG) \ + { \ + reg1 = XEXP (addr, 0); \ + addr = XEXP (addr, 1); \ + } \ + else if (GET_CODE (XEXP (addr, 1)) == REG) \ + { \ + reg1 = XEXP (addr, 1); \ + addr = XEXP (addr, 0); \ + } \ + if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \ + || GET_CODE (addr) == SIGN_EXTEND) \ + { if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \ + if (offset != 0) { if (addr != 0) abort (); addr = offset; } \ + if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \ + || GET_CODE (reg1) == MULT)) \ + || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \ + { breg = reg2; ireg = reg1; } \ + else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \ + { breg = reg1; ireg = reg2; } \ + if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \ + { int scale = 1; \ + if (GET_CODE (ireg) == MULT) \ + { scale = INTVAL (XEXP (ireg, 1)); \ + ireg = XEXP (ireg, 0); } \ + if (GET_CODE (ireg) == SIGN_EXTEND) \ + fprintf (FILE, "L%d-LI%d-2(pc,%s.w", \ + CODE_LABEL_NUMBER (XEXP (addr, 0)), \ + CODE_LABEL_NUMBER (XEXP (addr, 0)), \ + reg_names[REGNO (XEXP (ireg, 0))]); \ + else \ + fprintf (FILE, "L%d-LI%d-2(pc,%s.l", \ + CODE_LABEL_NUMBER (XEXP (addr, 0)), \ + CODE_LABEL_NUMBER (XEXP (addr, 0)), \ + reg_names[REGNO (ireg)]); \ + if (scale != 1) fprintf (FILE, ":%d", scale); \ + putc (')', FILE); \ + break; } \ + if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF) \ + { fprintf (FILE, "L%d-LI%d-2(pc,%s.l", \ + CODE_LABEL_NUMBER (XEXP (addr, 0)), \ + CODE_LABEL_NUMBER (XEXP (addr, 0)), \ + reg_names[REGNO (breg)]); \ + putc (')', FILE); \ + break; } \ + if (ireg != 0 || breg != 0) \ + { int scale = 1; \ + if (breg == 0) \ + abort (); \ + if (addr && GET_CODE (addr) == LABEL_REF) abort (); \ + if (addr != 0) \ + output_addr_const (FILE, addr); \ + fprintf (FILE, "(%s", reg_names[REGNO (breg)]); \ + if (breg != 0 && ireg != 0) \ + putc (',', FILE); \ + if (ireg != 0 && GET_CODE (ireg) == MULT) \ + { scale = INTVAL (XEXP (ireg, 1)); \ + ireg = XEXP (ireg, 0); } \ + if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \ + fprintf (FILE, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]); \ + else if (ireg != 0) \ + fprintf (FILE, "%s.l", reg_names[REGNO (ireg)]); \ + if (scale != 1) fprintf (FILE, ":%d", scale); \ + putc (')', FILE); \ + break; \ + } \ + else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF) \ + { fprintf (FILE, "L%d-LI%d-2(pc,%s.l)", \ + CODE_LABEL_NUMBER (XEXP (addr, 0)), \ + CODE_LABEL_NUMBER (XEXP (addr, 0)), \ + reg_names[REGNO (reg1)]); \ + break; } \ + default: \ + if (GET_CODE (addr) == CONST_INT \ + && INTVAL (addr) < 0x8000 \ + && INTVAL (addr) >= -0x8000) \ + fprintf (FILE, "%d", INTVAL (addr)); \ + else \ + output_addr_const (FILE, addr); \ + }} + +#define ASM_OUTPUT_SOURCE_FILENAME(FILE, FILENAME) \ + fprintf (FILE, "\t; file\t\"%s\"\n", FILENAME) + +#define ASM_OUTPUT_SOURCE_LINE(FILE, LINENO) \ + fprintf (FILE, "\t; ln\t%d\n", \ + (sdb_begin_function_line \ + ? last_linenum - sdb_begin_function_line : 1)) + +/* This macro generates the assembly code for function entry. + FILE is a stdio stream to output the code to. + SIZE is an int: how many units of temporary storage to allocate. + Refer to the array `regs_ever_live' to determine which registers + to save; `regs_ever_live[I]' is nonzero if register number I + is ever used in the function. This macro is responsible for + knowing which registers should not be saved even if used. */ + +/* Note that the order of the bit mask for fmovem is the opposite + of the order for movem! */ + +#undef FUNCTION_PROLOGUE +#define FUNCTION_PROLOGUE(FILE, SIZE) \ +{ register int regno; \ + register int mask = 0; \ + extern char call_used_regs[]; \ + int fsize = ((SIZE) + 3) & -4; \ + /* unos stack probe */ \ + if ( fsize > 30000 ) { \ + fprintf (FILE, "\tmovel sp,a0\n"); \ + fprintf (FILE, "\taddl $-%d,a0\n", 2048 + fsize); \ + fprintf (FILE, "\ttstb (a0)\n"); \ + } else { \ + fprintf (FILE, "\ttstb -%d(sp)\n", 2048 + fsize); \ + } \ + if (frame_pointer_needed) \ + { if (TARGET_68020 || fsize < 0x8000) \ + fprintf (FILE, "\tlink a6,$%d\n", -fsize); \ + else \ + fprintf (FILE, "\tlink a6,$0\n\tsubl $%d,sp\n", fsize); } \ + for (regno = 24; regno < 56; regno++) \ + if (regs_ever_live[regno] && ! call_used_regs[regno]) \ + fprintf(FILE, "\tfpmoved %s, sp@-\n", \ + reg_names[regno]); \ + for (regno = 16; regno < 24; regno++) \ + if (regs_ever_live[regno] && ! call_used_regs[regno]) \ + mask |= 1 << (regno - 16); \ + if ((mask & 0xff) != 0) \ + fprintf (FILE, "\tfmovem $0x%x,-(sp)\n", mask & 0xff); \ + mask = 0; \ + for (regno = 0; regno < 16; regno++) \ + if (regs_ever_live[regno] && ! call_used_regs[regno]) \ + mask |= 1 << (15 - regno); \ + if (frame_pointer_needed) \ + mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \ + if (exact_log2 (mask) >= 0) \ + fprintf (FILE, "\tmovel %s,-(sp)\n", reg_names[15 - exact_log2 (mask)]); \ + else if (mask) fprintf (FILE, "\tmovem $0x%x,-(sp)\n", mask); } + +/* Must put address in %a0 , not %d0 . -- LGM, 7/15/88 */ +/* UNOS ?? */ +#undef FUNCTION_PROFILER +#define FUNCTION_PROFILER(FILE, LABEL_NO) \ + fprintf (FILE, "\tmovl &LP%%%d,%%a0\n\tjsr mcount\n", (LABEL_NO)) + +/* This macro generates the assembly code for function exit, + on machines that need it. If FUNCTION_EPILOGUE is not defined + then individual return instructions are generated for each + return statement. Args are same as for FUNCTION_PROLOGUE. + + The function epilogue should not depend on the current stack pointer! + It should use the frame pointer only. This is mandatory because + of alloca; we also take advantage of it to omit stack adjustments + before returning. */ + +#undef FUNCTION_EPILOGUE +#define FUNCTION_EPILOGUE(FILE, SIZE) \ +{ register int regno; \ + register int mask, fmask; \ + register int nregs; \ + int offset, foffset, fpoffset; \ + extern char call_used_regs[]; \ + int fsize = ((SIZE) + 3) & -4; \ + int big = 0; \ + nregs = 0; fmask = 0; fpoffset = 0; \ + for (regno = 24 ; regno < 56 ; regno++) \ + if (regs_ever_live[regno] && ! call_used_regs[regno]) \ + nregs++; \ + fpoffset = nregs*8; \ + nregs = 0; \ + for (regno = 16; regno < 24; regno++) \ + if (regs_ever_live[regno] && ! call_used_regs[regno]) \ + { nregs++; fmask |= 1 << (23 - regno); } \ + foffset = fpoffset + nregs * 12; \ + nregs = 0; mask = 0; \ + if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \ + for (regno = 0; regno < 16; regno++) \ + if (regs_ever_live[regno] && ! call_used_regs[regno]) \ + { nregs++; mask |= 1 << regno; } \ + offset = foffset + nregs * 4; \ + if (offset + fsize >= 0x8000 \ + && frame_pointer_needed \ + && (mask || fmask || fpoffset)) \ + { fprintf (FILE, "\tmovel $%d,a0\n", -fsize); \ + fsize = 0, big = 1; } \ + if (exact_log2 (mask) >= 0) { \ + if (big) \ + fprintf (FILE, "\tmovel -%d(a6,a0.l),%s\n", \ + offset + fsize, reg_names[exact_log2 (mask)]); \ + else if (! frame_pointer_needed) \ + fprintf (FILE, "\tmovel (sp)+,%s\n", \ + reg_names[exact_log2 (mask)]); \ + else \ + fprintf (FILE, "\tmovel -%d(a6),%s\n", \ + offset + fsize, reg_names[exact_log2 (mask)]); } \ + else if (mask) { \ + if (big) \ + fprintf (FILE, "\tmovem -%d(a6,a0.l),$0x%x\n", \ + offset + fsize, mask); \ + else if (! frame_pointer_needed) \ + fprintf (FILE, "\tmovem (sp)+,$0x%x\n", mask); \ + else \ + fprintf (FILE, "\tmovem -%d(a6),$0x%x\n", \ + offset + fsize, mask); } \ + if (fmask) { \ + if (big) \ + fprintf (FILE, "\tfmovem -%d(a6,a0.l),$0x%x\n", \ + foffset + fsize, fmask); \ + else if (! frame_pointer_needed) \ + fprintf (FILE, "\tfmovem (sp)+,$0x%x\n", fmask); \ + else \ + fprintf (FILE, "\tfmovem -%d(a6),$0x%x\n", \ + foffset + fsize, fmask); } \ + if (fpoffset != 0) \ + for (regno = 55; regno >= 24; regno--) \ + if (regs_ever_live[regno] && ! call_used_regs[regno]) { \ + if (big) \ + fprintf(FILE, "\tfpmoved -%d(a6,a0.l), %s\n", \ + fpoffset + fsize, reg_names[regno]); \ + else if (! frame_pointer_needed) \ + fprintf(FILE, "\tfpmoved (sp)+, %s\n", \ + reg_names[regno]); \ + else \ + fprintf(FILE, "\tfpmoved -%d(a6), %s\n", \ + fpoffset + fsize, reg_names[regno]); \ + fpoffset -= 8; \ + } \ + if (frame_pointer_needed) \ + fprintf (FILE, "\tunlk a6\n"); \ + if (current_function_pops_args) \ + fprintf (FILE, "\trtd $%d\n", current_function_pops_args); \ + else fprintf (FILE, "\trts\n"); } +