diff options
Diffstat (limited to 'anxiety.asm')
| -rw-r--r-- | anxiety.asm | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/anxiety.asm b/anxiety.asm new file mode 100644 index 0000000..9e9eeac --- /dev/null +++ b/anxiety.asm @@ -0,0 +1,254 @@ +.macro buf_cmd + ld a, 23 + rst.lil $10 + ld a, 0 + rst.lil $10 + ld a, $a0 + rst.lil $10 + .endmacro + +.macro vdu end + push hl + push bc + ld hl, @vdu_start + ld bc, end - @vdu_start + rst.lil $18 + pop bc + pop hl + jr end +@vdu_start: + .endmacro + +font_buf: .equ 1000 + + .include "mos_api.inc" + + .assume adl = 1 + .org $40000 + + jr start + .asciz "anxiety.bin" + .align 64 ; fill with 0 up to MOS header + .db "MOS" ; MOS header + .db 0 ; version 0 + .db 1 ; ADL mode + +start: + ei + + ld hl, mode ; location of screen mode restore + mos mos_sysvars ; load pointer to sysvars in IX + ld a, (ix + sysvar_scrMode) ; get current screen mode + ld (hl), a ; save it in command stream + +vdu_init: + vdu @n + .db 12 ; CLS + .db 16 ; CLG + .db 23, 0, $c0, 0 ; logical coords off + ; .db 22, 0 ; select screenmode, 640x480x16 + .db 22, 18 ; select screenmode, 1024x768x2 + .db 23, 1, 0 ; hide cursor +@@: + + ld de, 0 + ld hl, font ; first 256 bytes are character widths + ld ix, font + $100 ; font icn data starts here + ld b, -1 +create_char: + call create_bitmap + + inc hl + inc d + djnz create_char + +main: + ld hl, font + ld (font_ptr), hl + + ld hl, 40 + ld (x), hl + + ld hl, text + call print_text + + ld hl, 0 + ld (x), hl + + ld hl, (y) + ld de, 32 + add hl, de + ld (y), hl + ld hl, small_text + call print_text + +loop: + mos mos_sysvars + ld a, (ix + sysvar_keyascii) + cp '\e' + jr nz, loop ; Loop until key is pressed + +end: + vdu @n + .db 16 ; CLG + .db 23, 1, 1 ; show cursor + .db 22 ; restore screen mode +mode: + .db 0 +@@: + + ld hl, 0 ; return success + ret + +create_bitmap: + ld e, (hl) ; get width + + buf_cmd + ld a, d ; buffer id + rst.lil $10 + ld a, 0 ; buffer id is 16-bit, send msb + rst.lil $10 + ld a, 2 ; clear buffer + rst.lil $10 + + buf_cmd + ld a, d ; buffer id + rst.lil $10 + ld a, 0 ; buffer id is 16-bit, send msb + rst.lil $10 + ld a, 0 ; write block + rst.lil $10 + ld a, 32 ; block length + rst.lil $10 + ld a, 0 ; length msb + rst.lil $10 + + push bc + + ld b, 16 +@loop: + ld a, (ix) + rst.lil $10 + ld a, (ix + 16) + rst.lil $10 + inc ix + djnz @loop + + ld b, 16 +@@: + inc ix + djnz @p + + pop bc + + buf_cmd + ld a, d ; buffer id + rst.lil $10 + ld a, 0 ; buffer id is 16-bit, send msb + rst.lil $10 + ld a, 14 ; consolidate blocks + rst.lil $10 + + ld a, 23 ; bitmap api + rst.lil $10 + ld a, 27 ; bitmap api + rst.lil $10 + ld a, $20 ; select bitmap + rst.lil $10 + ld a, d ; buffer id + rst.lil $10 + ld a, 0 ; buffer id is 16-bit, send msb + rst.lil $10 + + ld a, 23 ; bitmap api + rst.lil $10 + ld a, 27 ; bitmap api + rst.lil $10 + ld a, $21 ; create bitmap + rst.lil $10 + ld a, 16 ; width id + rst.lil $10 + ld a, 0 ; width is 16-bit, send msb + rst.lil $10 + ld a, 16 ; height + rst.lil $10 + ld a, 0 ; height is 16-bit, send msb + rst.lil $10 + ld a, 2 ; 1-bpp + rst.lil $10 + ret + +plot: + ld a, 25 + rst.lil $10 + ld a, $ed + rst.lil $10 + ld a, l + rst.lil $10 + ld a, h + rst.lil $10 + ld a, e + rst.lil $10 + ld a, d + rst.lil $10 + ret + +draw_char: + push hl + + ld de, 0 + ld e, a + + ld a, 23 ; bitmap api + rst.lil $10 + ld a, 27 ; bitmap api + rst.lil $10 + ld a, $20 ; select bitmap + rst.lil $10 + ld a, e ; select bitmap id based on ascii code + rst.lil $10 + ld a, 0 ; buffer id is 16-bit, send msb + rst.lil $10 + + push de + ld hl, (x) + ld de, (y) + call plot + pop de + + ld hl, font + add hl, de ; add width pointer offset + + ld a, (hl) ; get width + ld d, 0 + ld e, a + + ld hl, (x) + add hl, de ; update cursor pointer by width + ld (x), hl + + pop hl + ret + +print_text: + ld a, (hl) + cp 0 + ret z + inc hl + call draw_char + jr print_text + +font: + .incbin "times15.uf2" +; times12: +; .incbin "times12.uf2" +text: + .asciz "Happy New Years!" +small_text: + .asciz "Wait a minute, wait a minute, Doc, are you telling me that you built a time machine out of a delorean." +font_ptr: + .dw 0 +x: + .dw 0 +y: + .dw 0 |