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Add a machinetype identifier to help us quickly identify Apple //e (bit 7) and //e enhanced (bit 6). Use it in conio functions for 80-columns code instead of relying entirely on the __APPLE2ENH__ target. Move videomode() to the apple2 target, and have it return an error if 80-columns hardware is not available - this is a lie for now, it is considered available on //e enhanced, which may not be true, and not available on //e, which may also be not true. An ulterior patch will make that check correctly. Adapt the box/line drawing characters so that one can use MouseText on the apple2 target if it is available, by defining DYN_DRAW_BOX. No change by default: MouseText is considered available on apple2enh and not available on apple2.
41 lines
1.2 KiB
ArmAsm
41 lines
1.2 KiB
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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; void __fastcall__ dyn_cvlinexy (unsigned char c, unsigned char x, unsigned char y, unsigned char length);
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; void __fastcall__ dyn_cvline (unsigned char c, unsigned char length);
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;
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.ifndef __APPLE2ENH__
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.export _dyn_cvlinexy, _dyn_cvline
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.import gotoxy, putchar, newline, popa
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.import machinetype
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.include "zeropage.inc"
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_dyn_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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_dyn_cvline:
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pha
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jsr popa ; Get the character to draw
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eor #$80 ; Invert high bit
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tax
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pla
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stx tmp1
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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 tmp1 ; Screen code
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jsr putchar ; 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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.endif
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