| 0,0 → 1,114 |
|---|
| ; Author: rgimad (2021) |
| ; License: GNU GPL v2 |
| |
| format binary as "" |
| use32 |
| org 0 |
| db 'MENUET01' ; signature |
| dd 1 ; header version |
| dd start ; entry point |
| dd _i_end ; end of image |
| dd _mem ; required memory size |
| dd _stacktop ; address of stack top |
| dd cmdline ; buffer for command line arguments |
| dd 0 ; buffer for path |
| |
| include 'constants.inc' |
| |
| ; application's entry point |
| align 4 |
| start: |
| |
| stdcall chip8_init ; initialize |
| |
| DEBUGF DBG_INFO, "app started, args = %s\n", cmdline |
| DEBUGF DBG_INFO, "MAX_GAME_SIZE = %x = %u\n", MAX_GAME_SIZE, MAX_GAME_SIZE |
| |
| ; xor ecx, ecx |
| ; @@: |
| ; mov al, byte [chip8_fontset + ecx] |
| ; DEBUGF DBG_INFO, "%x ", al |
| ; cmp ecx, 79 |
| ; je @f |
| ; inc ecx |
| ; jmp @b |
| ; @@: |
| |
| mov dword [fread_struct.filename], cmdline |
| stdcall chip8_loadgame, fread_struct |
| jz .file_not_found |
| |
| DEBUGF DBG_INFO, "file was read. bytes: %x %x %x..\n", [memory + 0x200], [memory + 0x200 + 4], [memory + 0x200 + 8] |
| |
| ; mov byte [gfx + 5], 1 |
| ; mov byte [gfx + 64], 1 |
| ; mov byte [gfx + 65], 1 |
| ; mov byte [gfx + 64*2 + 3], 1 |
| |
| .event_loop: |
| mcall 23, CLOCK_RATE ; wait for event with CLOCK_RATE timeout |
| ;DEBUGF DBG_INFO, "evenp loop iter i\n" |
| |
| cmp eax, 1 |
| je .event_redraw |
| |
| cmp eax, 2 |
| je .event_key |
| |
| cmp eax, 3 |
| je .event_button |
| |
| jmp .event_default |
| |
| .event_redraw: |
| stdcall draw_main_window |
| jmp .event_default |
| |
| .event_key: |
| mcall 2 |
| stdcall keyboard_update, eax |
| DEBUGF DBG_INFO, "key scancode %x\n", eax:4 |
| jmp .event_default |
| |
| .event_button: |
| mcall 17 |
| cmp ah, 1 |
| jne .event_default |
| mcall -1 |
| |
| .event_default: |
| stdcall chip8_emulatecycle |
| cmp byte [chip8_draw_flag], 0 |
| jz @f |
| |
| ; mov byte [gfx + 64*2 + 3], 1 ; DBG |
| |
| stdcall draw_screen |
| mov byte [chip8_draw_flag], 0 |
| @@: |
| stdcall chip8_tick |
| jmp .event_loop |
| |
| .file_not_found: |
| DEBUGF DBG_ERR, "Unable to open game file! eax = %u\n", eax |
| jmp .exit |
| |
| .exit: |
| mov eax, -1 |
| int 0x40 |
| |
| ;;;;;;;;;;;;;;;;;;;;;;; |
| |
| |
| include 'gui.inc' |
| |
| include 'emu.inc' |
| |
| include 'utils.inc' |
| |
| include 'data.inc' |
| rb 4096 ; reserve for main thread stack |
| align 16 |
| _stacktop: |
| |
| _mem: |