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Diffstat (limited to 'gcc/config/avr/libgcc.S')
-rw-r--r--gcc/config/avr/libgcc.S214
1 files changed, 96 insertions, 118 deletions
diff --git a/gcc/config/avr/libgcc.S b/gcc/config/avr/libgcc.S
index b0e91cc..db6c411 100644
--- a/gcc/config/avr/libgcc.S
+++ b/gcc/config/avr/libgcc.S
@@ -32,18 +32,14 @@ Boston, MA 02111-1307, USA. */
This exception does not however invalidate any other reasons why
the executable file might be covered by the GNU General Public License. */
-#define TEXT_SEG(x) .section .text.libgcc ; x
-#define GLOBAL(x) .global _##x
-#define FUNCTION(x) .func _##x
-#define LABEL(x) _##x##:
-#define ENDFUNC .endfunc
-
#define __zero_reg__ r1
#define __tmp_reg__ r0
#define __SREG__ 0x3f
#define __SP_H__ 0x3e
#define __SP_L__ 0x3d
+ .section .text.libgcc
+
/*******************************************************
Multiplication 8 x 8
*******************************************************/
@@ -53,13 +49,12 @@ Boston, MA 02111-1307, USA. */
#define r_arg1 r24 /* multiplier */
#define r_res __tmp_reg__ /* result */
-TEXT_SEG(mulqi3)
-GLOBAL (mulqi3)
-FUNCTION (mulqi3)
-LABEL(mulqi3)
+ .global _mulqi3
+ .func _mulqi3
+_mulqi3:
-GLOBAL (umulqi3)
-LABEL(umulqi3)
+ .global _umulqi3
+_umulqi3:
clr r_res ; clear result
__mulqi3_loop:
sbrc r_arg1,0
@@ -76,7 +71,7 @@ __mulqi3_exit:
#undef r_arg1
#undef r_res
-ENDFUNC
+.endfunc
#endif /* defined (Lmulqi3) */
@@ -91,13 +86,12 @@ ENDFUNC
#define r_resL r20 /* result Low */
#define r_resH r21 /* result High */
-TEXT_SEG(mulhi3)
-GLOBAL (mulhi3)
-FUNCTION (mulhi3)
-LABEL(mulhi3)
+ .global _mulhi3
+ .func _mulhi3
+_mulhi3:
-GLOBAL (umulhi3)
-LABEL(umulhi3)
+ .global _umulhi3
+_umulhi3:
clr r_resH ; clear result
clr r_resL ; clear result
@@ -129,7 +123,7 @@ __mulhi3_exit:
#undef r_resL
#undef r_resH
-ENDFUNC
+.endfunc
#endif /* defined (Lmulhi3) */
#if defined (Lmulsi3)
@@ -153,13 +147,12 @@ ENDFUNC
#define r_resHH r31 /* result High */
-TEXT_SEG(mulsi3)
-GLOBAL (mulsi3)
-FUNCTION (mulsi3)
-LABEL(mulsi3)
+ .global _mulsi3
+ .func _mulsi3
+_mulsi3:
-GLOBAL (umulsi3)
-LABEL(umulsi3)
+ .global _umulsi3
+_umulsi3:
clr r_resHH ; clear result
clr r_resHL ; clear result
clr r_resH ; clear result
@@ -207,7 +200,7 @@ __mulsi3_exit:
#undef r_resHL
#undef r_resHH
-ENDFUNC
+.endfunc
#endif /* defined (Lmulsi3) */
/*******************************************************
@@ -220,46 +213,42 @@ ENDFUNC
#if defined (Lumodqi3)
-TEXT_SEG(divqi3)
-GLOBAL (umodqi3)
-FUNCTION (umodqi3)
-LABEL(umodqi3)
+ .global _umodqi3
+ .func _umodqi3
+_umodqi3:
clt
rcall _udivqi3
mov r24,r_rem
ret
-ENDFUNC
+.endfunc
#endif /* defined (Lumodqi3) */
#if defined (Ludivqi3)
-TEXT_SEG(divqi3)
-GLOBAL (udivqi3)
-FUNCTION (udivqi3)
-LABEL(udivqi3)
+ .global _udivqi3
+ .func _udivqi3
+_udivqi3:
clr __tmp_reg__
rjmp _divqi_raw
-ENDFUNC
+.endfunc
#endif /* defined (Ludivqi3) */
#if defined (Lmodqi3)
-TEXT_SEG (divqi3)
-GLOBAL (moqhi3)
-FUNCTION (moqhi3)
-LABEL (modqi3)
+ .global _moqhi3
+ .func _moqhi3
+_modqi3:
rcall _divqi3
mov r24,r_rem
ret
-ENDFUNC
+.endfunc
#endif /* defined (Lmodqi3) */
#if defined (Ldivqi3)
-TEXT_SEG(divqi3)
-GLOBAL (divqi3)
-FUNCTION (divqi3)
-LABEL(divqi3)
+ .global _divqi3
+ .func _divqi3
+_divqi3:
bst r_arg1,7 ; store sign of divident
mov __tmp_reg__,r_arg1
eor __tmp_reg__,r_arg2; r0.7 is sign of result
@@ -267,8 +256,8 @@ LABEL(divqi3)
neg r_arg1 ; divident negative : negate
sbrc r_arg2,7
neg r_arg2 ; divisor negative : negate
-GLOBAL (divqi_raw)
-LABEL (divqi_raw)
+ .global _divqi_raw
+_divqi_raw:
sub r_rem,r_rem ; clear remainder and carry
ldi r_cnt,9 ; init loop counter
rjmp __divqi3_ep ; jump to entry point
@@ -291,7 +280,7 @@ __divqi3_1:
__divqi3_exit:
mov r24,r_arg1 ; put result to return register
ret
-ENDFUNC
+.endfunc
#endif /* defined (Ldivqi3) */
#undef r_rem
@@ -315,53 +304,49 @@ ENDFUNC
#define r_cnt r21 /* loop count */
#if defined (Lumodhi3)
-TEXT_SEG (divhi3)
-GLOBAL (umodhi3)
-FUNCTION (umodhi3)
-LABEL (umodhi3)
+ .global _umodhi3
+ .func _umodhi3
+_umodhi3:
clt
rcall _udivhi3
-GLOBAL (umodhi3_ret)
-LABEL (umodhi3_ret)
+ .global _umodhi3_ret
+_umodhi3_ret:
mov r24,r_remL
mov r25,r_remH
ret
-ENDFUNC
+.endfunc
#endif /* defined (Lumodhi3) */
#if defined (Ludivhi3)
-TEXT_SEG (divhi3)
-GLOBAL (udivhi3)
-FUNCTION (udivhi3)
-LABEL (udivhi3)
+ .global _udivhi3
+ .func _udivhi3
+_udivhi3:
clr __tmp_reg__
rjmp _divhi_raw
-ENDFUNC
+.endfunc
#endif /* defined (Ludivhi3) */
#if defined (Lmodhi3)
-TEXT_SEG (divhi3)
-GLOBAL (modhi3)
-FUNCTION (modhi3)
-LABEL (modhi3)
-GLOBAL (div)
-LABEL (div)
+ .global _modhi3
+ .func _modhi3
+_modhi3:
+ .global _div
+_div:
rcall _divhi3
mov r22,r24 ; needed for div () function
mov r23,r25
rjmp _umodhi3_ret
-ENDFUNC
+.endfunc
#endif /* defined (Lmodhi3) */
#if defined (Ldivhi3)
-TEXT_SEG (divhi3)
-GLOBAL (divhi3)
-FUNCTION (divhi3)
-LABEL (divhi3)
+ .global _divhi3
+ .func _divhi3
+_divhi3:
bst r_arg1H,7 ; store sign of divident
mov __tmp_reg__,r_arg1H
eor __tmp_reg__,r_arg2H ; r0.7 is sign of result
@@ -376,8 +361,8 @@ __divhi3_skip1:
neg r_arg2L ; divisor negative : negate
sbci r_arg2H,0xff
__divhi3_skip2:
-GLOBAL (divhi_raw)
-LABEL (divhi_raw)
+ .global _divhi_raw
+_divhi_raw:
sub r_remL,r_remL
sub r_remH,r_remH ; clear remainder and carry
ldi r_cnt,17 ; init loop counter
@@ -408,7 +393,7 @@ __divhi3_exit:
com r_arg1L
com r_arg1H
ret
-ENDFUNC
+.endfunc
#endif /* defined (Ldivhi3) */
#undef r_remH
@@ -444,58 +429,54 @@ ENDFUNC
#if defined (Lumodsi3)
-TEXT_SEG(divsi3)
-GLOBAL (umodsi3)
-FUNCTION (umodsi3)
-LABEL(umodsi3)
+ .global _umodsi3
+ .func _umodsi3
+_umodsi3:
clt
rcall _udivsi3
-GLOBAL (umodsi3_ret)
-LABEL (umodsi3_ret)
+ .global _umodsi3_ret
+_umodsi3_ret:
mov r25,r_remHH
mov r24,r_remHL
mov r23,r_remH
mov r22,r_remL
-GLOBAL (cleanup)
-LABEL (cleanup)
+ .global _cleanup
+_cleanup:
ret
-ENDFUNC
+.endfunc
#endif /* defined (Lumodsi3) */
#if defined (Ludivsi3)
-TEXT_SEG(divsi3)
-GLOBAL (udivsi3)
-FUNCTION (udivsi3)
-LABEL(udivsi3)
+ .global _udivsi3
+ .func _udivsi3
+_udivsi3:
clr __tmp_reg__
rjmp _divsi_raw
-ENDFUNC
+.endfunc
#endif /* defined (Ludivsi3) */
#if defined (Lmodsi3)
-TEXT_SEG (divsi3)
-GLOBAL (modsi3)
-FUNCTION (modsi3)
-LABEL (modsi3)
-GLOBAL (ldiv)
-LABEL (ldiv)
+ .global _modsi3
+ .func _modsi3
+_modsi3:
+ .global _ldiv
+_ldiv:
rcall _divsi3
mov r18,r22 /* Needed for ldiv */
mov r19,r23
mov r20,r24
mov r21,r25
rjmp _umodsi3_ret
-ENDFUNC
+.endfunc
#endif /* defined (Lmodsi3) */
#if defined (Ldivsi3)
-TEXT_SEG(divsi3)
-GLOBAL (divsi3)
-FUNCTION (divsi3)
-LABEL(divsi3)
+ .global _divsi3
+ .func _divsi3
+_divsi3:
bst r_arg1HH,7 ; store sign of divident
mov __tmp_reg__,r_arg1HH
eor __tmp_reg__,r_arg2HH ; r0.7 is sign of result
@@ -518,8 +499,8 @@ __divsi3_skip1:
sbci r_arg2HL,0xff
sbci r_arg2HH,0xff
__divsi3_skip2:
-GLOBAL (divsi_raw)
-LABEL (divsi_raw)
+ .global _divsi_raw
+_divsi_raw:
push r_cnt
sub r_remL,r_remL
sub r_remH,r_remH
@@ -571,7 +552,7 @@ __divsi3_exit:
com r_arg1HL
com r_arg1HH
ret
-ENDFUNC
+.endfunc
#endif /* defined (Ldivsi3) */
/**********************************
@@ -579,10 +560,9 @@ ENDFUNC
**********************************/
#if defined (Lprologue)
-TEXT_SEG (_prologue_saves)
-GLOBAL (_prologue_saves__)
-FUNCTION (_prologue_saves__)
-LABEL (_prologue_saves__)
+ .global __prologue_saves__
+ .func __prologue_saves__
+__prologue_saves__:
push r2
push r3
push r4
@@ -614,7 +594,7 @@ LABEL (_prologue_saves__)
out __SP_H__,r29
_prologue_end:
ijmp
-ENDFUNC
+.endfunc
#endif /* defined (Lprologue) */
/*
@@ -622,10 +602,9 @@ ENDFUNC
*/
#if defined (Lepilogue)
-TEXT_SEG (_epilogue_restores)
-GLOBAL (_epilogue_restores__)
-FUNCTION (_epilogue_restores__)
-LABEL (_epilogue_restores__)
+ .global __epilogue_restores__
+ .func __epilogue_restores__
+__epilogue_restores__:
ldd r2,Y+18
ldd r3,Y+17
ldd r4,Y+16
@@ -657,10 +636,9 @@ LABEL (_epilogue_restores__)
#endif /* defined (Lepilogue) */
#ifdef L__exit
-TEXT_SEG(exit)
-GLOBAL (exit)
-FUNCTION (exit)
-LABEL(exit)
+ .global _exit
+ .func _exit
+_exit:
rjmp _exit
-ENDFUNC
-#endif \ No newline at end of file
+.endfunc
+#endif
generated by cgit v1.1 at 2024-11-04 15:27:26 +0000