You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
34 lines
498 B
ArmAsm
34 lines
498 B
ArmAsm
12 years ago
|
;
|
||
|
|
; Ullrich von Bassewitz, 25.10.2000
|
||
|
|
;
|
||
|
|
; CC65 runtime: Convert tos from long to int
|
||
|
|
;
|
||
|
|
|
||
|
|
.export tosint
|
||
|
|
.import incsp2
|
||
|
|
.importzp sp
|
||
|
|
|
||
|
|
.macpack cpu
|
||
|
|
|
||
|
|
; Convert TOS from long to int by cutting of the high 16bit
|
||
|
|
|
||
|
|
.proc tosint
|
||
|
|
|
||
|
|
pha
|
||
|
|
.if (.cpu .bitand ::CPU_ISET_65SC02)
|
||
|
|
lda (sp)
|
||
|
|
.else
|
||
|
|
ldy #0
|
||
|
|
lda (sp),y ; sp+1
|
||
|
|
.endif
|
||
|
|
ldy #2
|
||
|
|
sta (sp),y
|
||
|
|
dey
|
||
|
|
lda (sp),y
|
||
|
|
ldy #3
|
||
|
|
sta (sp),y
|
||
|
|
pla
|
||
|
|
jmp incsp2 ; Drop 16 bit
|
||
|
|
|
||
|
|
.endproc
|