mirror of
https://github.com/cc65/cc65.git
synced 2024-12-23 19:29:37 +00:00
fc6a63a15e
3d8c3a4948 caused an unintended "shadowing" of files in /libsrc/runtime by files in /libsrc/common. Therefore the files in question are renamed (again) in /libsrc/common to make the files in /libsrc/runtime "visible" again.
28 lines
590 B
ArmAsm
28 lines
590 B
ArmAsm
;
|
|
; Ullrich von Bassewitz, 2011-07-10
|
|
;
|
|
; CC65 library: 16x8 => 32 unsigned multiplication
|
|
;
|
|
|
|
.export _umul16x8r32
|
|
.import umul8x16r24, popax
|
|
|
|
.include "zeropage.inc"
|
|
|
|
|
|
;---------------------------------------------------------------------------
|
|
; 16x8 => 32 unsigned multiplication routine. We use 8x16 => 24 and clear
|
|
; the high byte of the result
|
|
|
|
.proc _umul16x8r32
|
|
|
|
sta ptr1
|
|
lda #0
|
|
sta sreg+1 ; Clear high byte of result
|
|
jsr popax
|
|
jmp umul8x16r24
|
|
|
|
.endproc
|
|
|
|
|