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cc65/libsrc/runtime/decsp7.s
cuz 1e1199cb2b Rewrite the decsp and subysp functions now since they are used more often.
git-svn-id: svn://svn.cc65.org/cc65/trunk@665 b7a2c559-68d2-44c3-8de9-860c34a00d81
2001-03-24 16:15:01 +00:00

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226 B
ArmAsm

;
; Ullrich von Bassewitz, 25.10.2000
;
; CC65 runtime: Decrement the stackpointer by 7
;
.export decsp7
.importzp sp
.proc decsp7
lda sp
sec
sbc #7
sta sp
bcc @L1
rts
@L1: dec sp+1
rts
.endproc