Files
cc65/libsrc/runtime/ldptr1sp.s
Colin Leroy-Mira aa936b6d12 Fix copyright
2025-07-26 23:59:02 +02:00

21 lines
499 B
ArmAsm

;
; Colin Leroy-Mira, 2025-07-26
;
; CC65 runtime: Load ptr1 from offset in stack
;
.export ldptr10sp, ldptr1ysp
.importzp c_sp, ptr1
; Beware: The optimizer knows about the value in Y after return!
ldptr10sp:
ldy #1
ldptr1ysp:
lda (c_sp),y ; get high byte
sta ptr1+1 ; and save it
dey ; point to lo byte
lda (c_sp),y ; load low byte
sta ptr1
rts