(unspec:HI [(match_operand:HI 0 "register_operand" "!z,*r,z")]
UNSPEC_INDEX_JMP))
(use (label_ref (match_operand 1 "" "")))
- (clobber (match_dup 0))]
- ""
+ (clobber (match_dup 0))
+ (clobber (const_int 0))]
+ "!AVR_HAVE_EIJMP_EICALL"
"@
ijmp
push %A0\;push %B0\;ret
(set_attr "isa" "rjmp,rjmp,jmp")
(set_attr "cc" "none,none,clobber")])
+(define_insn "*tablejump.3byte-pc"
+ [(set (pc)
+ (unspec:HI [(reg:HI REG_Z)]
+ UNSPEC_INDEX_JMP))
+ (use (label_ref (match_operand 0 "" "")))
+ (clobber (reg:HI REG_Z))
+ (clobber (reg:QI 24))]
+ "AVR_HAVE_EIJMP_EICALL"
+ "clr r24\;subi r30,pm_lo8(-(%0))\;sbci r31,pm_hi8(-(%0))\;sbci r24,pm_hh8(-(%0))\;jmp __tablejump2__"
+ [(set_attr "length" "6")
+ (set_attr "isa" "eijmp")
+ (set_attr "cc" "clobber")])
+
(define_expand "casesi"
[(parallel [(set (match_dup 6)
(label_ref (match_operand 4 "" ""))
(pc)))
- (set (match_dup 6)
- (plus:HI (match_dup 6) (label_ref (match_operand:HI 3 "" ""))))
+ (set (match_dup 10)
+ (match_dup 7))
- (parallel [(set (pc) (unspec:HI [(match_dup 6)] UNSPEC_INDEX_JMP))
+ (parallel [(set (pc)
+ (unspec:HI [(match_dup 10)] UNSPEC_INDEX_JMP))
(use (label_ref (match_dup 3)))
- (clobber (match_dup 6))])]
+ (clobber (match_dup 10))
+ (clobber (match_dup 8))])]
""
{
operands[6] = gen_reg_rtx (HImode);
+
+ if (AVR_HAVE_EIJMP_EICALL)
+ {
+ operands[7] = operands[6];
+ operands[8] = all_regs_rtx[24];
+ operands[10] = gen_rtx_REG (HImode, REG_Z);
+ }
+ else
+ {
+ operands[7] = gen_rtx_PLUS (HImode, operands[6],
+ gen_rtx_LABEL_REF (VOIDmode, operands[3]));
+ operands[8] = const0_rtx;
+ operands[10] = operands[6];
+ }
})
input sections together are small enough to reach every
location with a RCALL/RJMP instruction. */
+#if defined (__AVR_HAVE_EIJMP_EICALL__) && !defined (__AVR_HAVE_ELPMX__)
+#error device not supported
+#endif
+
.macro mov_l r_dest, r_src
#if defined (__AVR_HAVE_MOVW__)
movw \r_dest, \r_src
#define XJMP rjmp
#endif
+#if defined (__AVR_HAVE_EIJMP_EICALL__)
+#define XICALL eicall
+#define XIJMP eijmp
+#else
+#define XICALL icall
+#define XIJMP ijmp
+#endif
+
;; Prologue stuff
.macro do_prologue_saves n_pushed n_frame=0
out __SP_L__,r28
#endif /* #SP = 8/16 */
-#if defined (__AVR_HAVE_EIJMP_EICALL__)
- eijmp
-#else
- ijmp
-#endif
+ XIJMP
ENDF __prologue_saves__
#endif /* defined (L_prologue) */
\f
.section .text.libgcc, "ax", @progbits
-#ifdef L_tablejump
+#ifdef L_tablejump2
DEFUN __tablejump2__
- lsl r30
- rol r31
- ;; FALLTHRU
-ENDF __tablejump2__
-
-DEFUN __tablejump__
-#if defined (__AVR_HAVE_LPMX__)
- lpm __tmp_reg__, Z+
- lpm r31, Z
- mov r30, __tmp_reg__
+ lsl r30
+ rol r31
#if defined (__AVR_HAVE_EIJMP_EICALL__)
- eijmp
-#else
- ijmp
+ ;; Word address of gs() jumptable entry in R24:Z
+ rol r24
+ out __RAMPZ__, r24
+#elif defined (__AVR_HAVE_ELPM__)
+ ;; Word address of jumptable entry in Z
+ clr __tmp_reg__
+ rol __tmp_reg__
+ out __RAMPZ__, __tmp_reg__
#endif
-#else /* !HAVE_LPMX */
- lpm
- adiw r30, 1
- push r0
- lpm
- push r0
-#if defined (__AVR_HAVE_EIJMP_EICALL__)
- in __tmp_reg__, __EIND__
- push __tmp_reg__
+ ;; Read word address from jumptable and jump
+
+#if defined (__AVR_HAVE_ELPMX__)
+ elpm __tmp_reg__, Z+
+ elpm r31, Z
+ mov r30, __tmp_reg__
+#ifdef __AVR_HAVE_RAMPD__
+ ;; Reset RAMPZ to 0 so that EBI devices don't read garbage from RAM
+ out __RAMPZ__, __zero_reg__
+#endif /* RAMPD */
+ XIJMP
+#elif defined (__AVR_HAVE_ELPM__)
+ elpm
+ push r0
+ adiw r30, 1
+ elpm
+ push r0
+ ret
+#elif defined (__AVR_HAVE_LPMX__)
+ lpm __tmp_reg__, Z+
+ lpm r31, Z
+ mov r30, __tmp_reg__
+ ijmp
+#else
+ lpm
+ push r0
+ adiw r30, 1
+ lpm
+ push r0
+ ret
#endif
- ret
-#endif /* !HAVE_LPMX */
-ENDF __tablejump__
-#endif /* defined (L_tablejump) */
+ENDF __tablejump2__
+#endif /* L_tablejump2 */
#ifdef L_copy_data
.section .init4,"ax",@progbits
#ifdef L_ctors
.section .init6,"ax",@progbits
DEFUN __do_global_ctors
-#if defined(__AVR_HAVE_ELPM__)
- ldi r17, hi8(__ctors_start)
- ldi r28, lo8(__ctors_end)
- ldi r29, hi8(__ctors_end)
- ldi r16, hh8(__ctors_end)
- rjmp .L__do_global_ctors_start
+ ldi r17, pm_hi8(__ctors_start)
+ ldi r28, pm_lo8(__ctors_end)
+ ldi r29, pm_hi8(__ctors_end)
+#ifdef __AVR_HAVE_EIJMP_EICALL__
+ ldi r16, pm_hh8(__ctors_end)
+#endif /* HAVE_EIJMP */
+ rjmp .L__do_global_ctors_start
.L__do_global_ctors_loop:
- sbiw r28, 2
- sbc r16, __zero_reg__
- mov_h r31, r29
- mov_l r30, r28
- out __RAMPZ__, r16
- XCALL __tablejump_elpm__
+ sbiw r28, 1
+#ifdef __AVR_HAVE_EIJMP_EICALL__
+ sbc r16, __zero_reg__
+ mov r24, r16
+#endif /* HAVE_EIJMP */
+ mov_h r31, r29
+ mov_l r30, r28
+ XCALL __tablejump2__
.L__do_global_ctors_start:
- cpi r28, lo8(__ctors_start)
- cpc r29, r17
- ldi r24, hh8(__ctors_start)
- cpc r16, r24
- brne .L__do_global_ctors_loop
-#else
- ldi r17, hi8(__ctors_start)
- ldi r28, lo8(__ctors_end)
- ldi r29, hi8(__ctors_end)
- rjmp .L__do_global_ctors_start
-.L__do_global_ctors_loop:
- sbiw r28, 2
- mov_h r31, r29
- mov_l r30, r28
- XCALL __tablejump__
-.L__do_global_ctors_start:
- cpi r28, lo8(__ctors_start)
- cpc r29, r17
- brne .L__do_global_ctors_loop
-#endif /* defined(__AVR_HAVE_ELPM__) */
+ cpi r28, pm_lo8(__ctors_start)
+ cpc r29, r17
+#ifdef __AVR_HAVE_EIJMP_EICALL__
+ ldi r24, pm_hh8(__ctors_start)
+ cpc r16, r24
+#endif /* HAVE_EIJMP */
+ brne .L__do_global_ctors_loop
ENDF __do_global_ctors
#endif /* L_ctors */
#ifdef L_dtors
.section .fini6,"ax",@progbits
DEFUN __do_global_dtors
-#if defined(__AVR_HAVE_ELPM__)
- ldi r17, hi8(__dtors_end)
- ldi r28, lo8(__dtors_start)
- ldi r29, hi8(__dtors_start)
- ldi r16, hh8(__dtors_start)
- rjmp .L__do_global_dtors_start
+ ldi r17, pm_hi8(__dtors_start)
+ ldi r28, pm_lo8(__dtors_end)
+ ldi r29, pm_hi8(__dtors_end)
+#ifdef __AVR_HAVE_EIJMP_EICALL__
+ ldi r16, pm_hh8(__dtors_end)
+#endif /* HAVE_EIJMP */
+ rjmp .L__do_global_dtors_start
.L__do_global_dtors_loop:
- sbiw r28, 2
- sbc r16, __zero_reg__
- mov_h r31, r29
- mov_l r30, r28
- out __RAMPZ__, r16
- XCALL __tablejump_elpm__
+ sbiw r28, 1
+#ifdef __AVR_HAVE_EIJMP_EICALL__
+ sbc r16, __zero_reg__
+ mov r24, r16
+#endif /* HAVE_EIJMP */
+ mov_h r31, r29
+ mov_l r30, r28
+ XCALL __tablejump2__
.L__do_global_dtors_start:
- cpi r28, lo8(__dtors_end)
- cpc r29, r17
- ldi r24, hh8(__dtors_end)
- cpc r16, r24
- brne .L__do_global_dtors_loop
-#else
- ldi r17, hi8(__dtors_end)
- ldi r28, lo8(__dtors_start)
- ldi r29, hi8(__dtors_start)
- rjmp .L__do_global_dtors_start
-.L__do_global_dtors_loop:
- mov_h r31, r29
- mov_l r30, r28
- XCALL __tablejump__
- adiw r28, 2
-.L__do_global_dtors_start:
- cpi r28, lo8(__dtors_end)
- cpc r29, r17
- brne .L__do_global_dtors_loop
-#endif /* defined(__AVR_HAVE_ELPM__) */
+ cpi r28, pm_lo8(__dtors_start)
+ cpc r29, r17
+#ifdef __AVR_HAVE_EIJMP_EICALL__
+ ldi r24, pm_hh8(__dtors_start)
+ cpc r16, r24
+#endif /* HAVE_EIJMP */
+ brne .L__do_global_dtors_loop
ENDF __do_global_dtors
#endif /* L_dtors */
.section .text.libgcc, "ax", @progbits
-#ifdef L_tablejump_elpm
-DEFUN __tablejump_elpm__
-#if defined (__AVR_HAVE_ELPMX__)
- elpm __tmp_reg__, Z+
- elpm r31, Z
- mov r30, __tmp_reg__
-#if defined (__AVR_HAVE_RAMPD__)
- ;; Reset RAMPZ to 0 so that EBI devices don't read garbage from RAM
- out __RAMPZ__, __zero_reg__
-#endif /* RAMPD */
-#if defined (__AVR_HAVE_EIJMP_EICALL__)
- eijmp
-#else
- ijmp
-#endif
-
-#elif defined (__AVR_HAVE_ELPM__)
- elpm
- adiw r30, 1
- push r0
- elpm
- push r0
-#if defined (__AVR_HAVE_EIJMP_EICALL__)
- in __tmp_reg__, __EIND__
- push __tmp_reg__
-#endif
- ret
-#endif
-ENDF __tablejump_elpm__
-#endif /* defined (L_tablejump_elpm) */
-
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Loading n bytes from Flash; n = 3,4
;; R22... = Flash[Z]
projects / gcc.git / commitdiff