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Merge pull request #208 from greg-king5/big-jump

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Improve the longjmp() and setjmp() functions.
This commit is contained in:
Oliver Schmidt
2015-09-11 21:06:50 +02:00
parent 5ff480d6f4 dbf0adcec9
commit 45313075fe
2 changed files with 11 additions and 13 deletions
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10
libsrc/common/longjmp.s
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@@ -1,7 +1,8 @@
; ;
; Ullrich von Bassewitz, 06.06.1998 ; 1998-06-06, Ullrich von Bassewitz
; 2015-09-11, Greg King
; ;
; void longjmp (jmp_buf buf, int retval); ; void __fastcall__ longjmp (jmp_buf buf, int retval);
; ;
.export _longjmp .export _longjmp
@@ -13,8 +14,8 @@ _longjmp:
stx ptr2+1 stx ptr2+1
ora ptr2+1 ; Check for 0 ora ptr2+1 ; Check for 0
bne @L1 bne @L1
lda #1 ; 0 is illegal according to the standard... inc ptr2 ; 0 is illegal, according to the standard ...
sta ptr2 ; ... and must be replaced by 1 ; ... and, must be replaced by 1
@L1: jsr popax ; get buf @L1: jsr popax ; get buf
sta ptr1 sta ptr1
stx ptr1+1 stx ptr1+1
@@ -49,4 +50,3 @@ _longjmp:
lda ptr2 lda ptr2
ldx ptr2+1 ldx ptr2+1
rts rts

14
libsrc/common/setjmp.s
View File

@@ -1,10 +1,13 @@
; ;
; Ullrich von Bassewitz, 06.06.1998 ; 1998-06-06, Ullrich von Bassewitz
; 2015-09-11, Greg King
; ;
; int setjmp (jmp_buf buf); ; int __fastcall__ setjmp (jmp_buf buf);
; ;
.export __setjmp .export __setjmp
.import return0
.importzp sp, ptr1 .importzp sp, ptr1
__setjmp: __setjmp:
@@ -44,9 +47,4 @@ __setjmp:
; Return zero ; Return zero
lda #0 jmp return0
tax
rts