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.
29 lines
452 B
ArmAsm
29 lines
452 B
ArmAsm
12 years ago
|
;
|
||
|
|
; Ullrich von Bassewitz, 07.08.1998
|
||
|
|
;
|
||
|
|
; CC65 runtime: modulo operation for unsigned ints
|
||
|
|
;
|
||
|
|
|
||
|
|
.export tosumoda0, tosumodax
|
||
|
|
.import popsreg, udiv16
|
||
|
|
.importzp ptr1, ptr4
|
||
|
|
|
||
|
|
tosumoda0:
|
||
|
|
ldx #0
|
||
|
|
tosumodax:
|
||
|
|
sta ptr4
|
||
|
|
stx ptr4+1 ; Save right operand
|
||
|
|
jsr popsreg ; Get right operand
|
||
|
|
|
||
|
|
; Do the division
|
||
|
|
|
||
|
|
jsr udiv16
|
||
|
|
|
||
|
|
; Result is in sreg, remainder in ptr1
|
||
|
|
|
||
|
|
lda ptr1
|
||
|
|
ldx ptr1+1
|
||
|
|
rts
|
||
|
|
|
||
|
|
|