diff options
| author | Melodi <62381002+Melodi17@users.noreply.github.com> | 2025-08-06 22:36:34 +1000 |
|---|---|---|
| committer | Melodi <62381002+Melodi17@users.noreply.github.com> | 2025-08-06 22:36:34 +1000 |
| commit | 7a8d2bcd75d88a5429937bf551878c55e1dcf0fd (patch) | |
| tree | 81bc1f259fb8678513aa8b214df4ef72720bb585 /ROMs/hello_world.dat | |
| parent | 16f3cb74564cf7c19da6e13666c98aca36094716 (diff) | |
moved everything to seperate projects, and started compiler work + push and pop instructions added
Diffstat (limited to 'ROMs/hello_world.dat')
| -rw-r--r-- | ROMs/hello_world.dat | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/ROMs/hello_world.dat b/ROMs/hello_world.dat deleted file mode 100644 index 6cdacff..0000000 --- a/ROMs/hello_world.dat +++ /dev/null @@ -1,33 +0,0 @@ -.org $1FFF -JMP program - -font: - .include "font.bin" - -program: - MOV 13, V0 ; Load character #12 - MOV 0, V1 ; X position - MOV 0, V2 ; Y position - MOV 1, V3 ; Color (1 = white) - CALL write_char ; Call function to write character - SUS - -write_char: - ; V0: Character to write - ; V1: X position - ; V2: Y position - ; V3: Color - ; Write a character to the screen at (V1, V2) with color V3 - - MUL V0, 64 ; V0 = Character * 64 (character size) - MOV AX, V0 ; Store result back into character - - MUL V2, 64 - ADD AX, V1 - MOV AX, V4 ; V4 = X position + Y position * 64 (screen index) - - MOV [V0 + $1FFF], V5 ; Read character - MUL V5, V3 ; V5 = Character * Color (color index) - MOV AX, V5 ; Store result into V5 - MOV V5, [V4 + $3FFF] ; Write character to screen memory - RET
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