mirror of
https://github.com/cc65/cc65.git
synced 2024-11-02 03:04:31 +00:00
53dd513176
which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81
27 lines
638 B
ArmAsm
27 lines
638 B
ArmAsm
;
|
|
; Ullrich von Bassewitz, 07.08.1998
|
|
;
|
|
; CC65 runtime: modulo operation for long signed ints
|
|
;
|
|
|
|
; When negating values, we will ignore the possibility here, that one of the
|
|
; values if $8000, in which case the negate will fail.
|
|
|
|
.export tosmodeax
|
|
.import poplsargs, udiv32, adjlsres
|
|
.importzp sreg, ptr1, ptr2, tmp3, tmp4
|
|
|
|
tosmodeax:
|
|
jsr poplsargs ; Get arguments from stack, adjust sign
|
|
jsr udiv32 ; Do the division
|
|
lda ptr1 ; Remainder is in (ptr2:tmp3:tmp4)
|
|
lda ptr2
|
|
ldx ptr2+1
|
|
ldy tmp3
|
|
sty sreg
|
|
ldy tmp4
|
|
sty sreg+1
|
|
jmp adjlsres ; Adjust the sign of the result if needed
|
|
|
|
|