Files
open-roms/c64/basic/ab1e.print_string.s
T

37 lines
417 B
ArmAsm

;; Print string at $YYAA
;; Compute's Mapping the 64 p101
print_string:
;; Setup pointer
sty temp_string_ptr+1
sta temp_string_ptr+0
txa
pha
;; Get offset ready
ldy #$00
print_string_loop:
;; Save Y in X, since X is preserved by chrout, but Y is not
tya
tax
lda (temp_string_ptr),y
beq print_string_end
jsr JCHROUT
txa
tay
iny
bne print_string_loop
print_string_end:
pla
tax
rts