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cc65/libsrc/runtime/tosint.s
cuz 23c35f27f8 Improved 65c02 support
git-svn-id: svn://svn.cc65.org/cc65/trunk@2507 b7a2c559-68d2-44c3-8de9-860c34a00d81
2003-10-10 17:52:12 +00:00

34 lines
498 B
ArmAsm

;
; 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