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cc65/libsrc/conio/cputs.s

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;
; Ullrich von Bassewitz, 06.08.1998
;
2017-06-28 18:43:31 +00:00
; void cputsxy (unsigned char x, unsigned char y, const char* s);
; void cputs (const char* s);
;
.export _cputsxy, _cputs
.import gotoxy, _cputc
.importzp ptr1, tmp1
.macpack cpu
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_cputsxy:
sta ptr1 ; Save s for later
stx ptr1+1
jsr gotoxy ; Set cursor, pop x and y
.if (.cpu .bitand CPU_ISET_65SC02)
bra L0 ; Same as cputs...
.else
jmp L0 ; Same as cputs...
.endif
_cputs: sta ptr1 ; Save s
stx ptr1+1
.if (.cpu .bitand CPU_ISET_65SC02)
L0: lda (ptr1) ; (5)
beq L9 ; (7) Jump if done
jsr _cputc ; (13) Output char, advance cursor
inc ptr1 ; (18) Bump low byte
bne L0 ; (20) Next char
inc ptr1+1 ; (25) Bump high byte
bne L0
.else
L0: ldy #0 ; (2)
L1: lda (ptr1),y ; (7)
beq L9 ; (9) Jump if done
iny
sty tmp1 ; (14) Save offset
jsr _cputc ; (20) Output char, advance cursor
ldy tmp1 ; (23) Get offset
bne L1 ; (25) Next char
inc ptr1+1 ; (30) Bump high byte
bne L1
.endif
; Done
L9: rts