1
0
mirror of https://github.com/cc65/cc65.git synced 2024-12-27 00:29:31 +00:00
cc65/libsrc/c128/isfast.s

22 lines
299 B
ArmAsm

;
; Marco van den Heuvel, 2018-03-19
;
; unsigned char isfast (void);
; /* Returns 1 if the CPU is in 2MHz mode. */
;
.export _isfast
.include "c128.inc"
.proc _isfast
lda VIC_CLK_128
and #$01
ldx #$00
rts
.endproc