30 lines
921 B
ArmAsm
30 lines
921 B
ArmAsm
;
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; Ullrich von Bassewitz, 08.08.1998
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; Colin Leroy-Mira, 26.05.2025
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; Konstantin Fedorov, 12.06.2025
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;
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; void cvlinexy (unsigned char x, unsigned char y, unsigned char length);
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; void cvline (unsigned char length);
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;
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.export _cvlinexy, _cvline
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.import gotoxy, putchardirect, newline
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.include "zeropage.inc"
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_cvlinexy:
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pha ; Save the length
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jsr gotoxy ; Call this one, will pop params
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pla ; Restore the length and run into _cvline
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_cvline:
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cmp #$00 ; Is the length zero?
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beq done ; Jump if done
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sta tmp2
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: lda #$5C ; vertical line character
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jsr putchardirect ; Write, no cursor advance
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jsr newline ; Advance cursor to next line
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dec tmp2
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bne :-
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done: rts
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