mirror of https://git.sr.ht/~rabbits/uxn
Removed IOR/IOW opcodes
This commit is contained in:
neauoire
parent
737e6fd39b
commit
5ecb69c467
11
README.md
11
README.md
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@ -53,11 +53,10 @@ evaluxn(u, u->vframe); /* Each frame
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```
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( hello world )
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:dev/w fff9 ( const write port )
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&Console { pad 8 stdio 1 }
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|0100 @RESET
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#00 =dev/w ( set dev/write to console )
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,text1 ,print-label JSR ( print to console )
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BRK
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@ -65,7 +64,7 @@ BRK
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@print-label ( text )
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@cliloop
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DUP2 LDR IOW ( write pointer value to console )
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DUP2 LDR =dev/console.stdio ( write pointer value to console )
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#0001 ADD2 ( increment string pointer )
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DUP2 LDR #00 NEQ ,cliloop ROT JMP? POP2 ( while *ptr!=0 goto loop )
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POP2
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@ -77,6 +76,8 @@ RTS
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|c000 @FRAME
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|d000 @ERROR
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|FF00 ;dev/console Console
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|FFF0 [ f3f0 f30b f30a ] ( palette )
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|FFFA .RESET .FRAME .ERROR
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```
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@ -113,10 +114,6 @@ A device that works like a NES controller, each button is a bit from a single by
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- GUI:
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- Line routine
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### Devices redesign
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- Possibly remove
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### Assembler
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- Includes
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@ -44,7 +44,7 @@ Program p;
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/* clang-format off */
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char ops[][4] = {
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"BRK", "NOP", "LIT", "---", "IOR", "IOW", "LDR", "STR",
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"BRK", "NOP", "LIT", "---", "---", "---", "LDR", "STR",
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"JMP", "JSR", "---", "RTS", "AND", "ORA", "ROL", "ROR",
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"POP", "DUP", "SWP", "OVR", "ROT", "WSR", "RSW", "---",
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"ADD", "SUB", "MUL", "DIV", "EQU", "NEQ", "GTH", "LTH"
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70
emulator.c
70
emulator.c
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@ -65,7 +65,7 @@ SDL_Texture *gTexture;
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Uint32 *pixels;
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Screen screen;
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Device *devconsole, *devscreen, *devmouse, *devkey, *devsprite, *devcontroller;
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Device *devconsole, *devscreen, *devmouse, *devkey, *devsprite, *devctrl;
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#pragma mark - Helpers
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@ -256,7 +256,7 @@ void
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domouse(Uxn *u, SDL_Event *event)
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{
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Uint8 flag = 0x00;
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Uint16 addr = 0xff50; /* TODO: get dynamically */
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Uint16 addr = devmouse->addr;
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Uint16 x = clamp(event->motion.x / ZOOM - PAD * 8, 0, HOR * 8 - 1);
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Uint16 y = clamp(event->motion.y / ZOOM - PAD * 8, 0, VER * 8 - 1);
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u->ram.dat[addr + 0] = (x >> 8) & 0xff;
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@ -283,16 +283,17 @@ domouse(Uxn *u, SDL_Event *event)
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}
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void
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dotext(SDL_Event *event)
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dotext(Uxn *u, SDL_Event *event)
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{
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int i;
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Uint16 addr = devkey->addr;
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if(SDL_GetModState() & KMOD_LCTRL || SDL_GetModState() & KMOD_RCTRL)
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return;
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for(i = 0; i < SDL_TEXTINPUTEVENT_TEXT_SIZE; ++i) {
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char c = event->text.text[i];
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if(c < ' ' || c > '~')
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break;
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devkey->mem[0] = c;
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u->ram.dat[addr] = c;
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}
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}
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@ -300,8 +301,8 @@ void
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doctrl(Uxn *u, SDL_Event *event, int z)
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{
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Uint8 flag = 0x00;
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Uint16 addr = 0xff30; /* TODO: get dynamically */
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if(z && event->key.keysym.sym == SDLK_h)
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Uint16 addr = devctrl->addr;
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if(z && event->key.keysym.sym == SDLK_h && SDL_GetModState() & KMOD_LCTRL)
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GUIDES = !GUIDES;
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if(SDL_GetModState() & KMOD_LCTRL || SDL_GetModState() & KMOD_RCTRL)
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flag = 0x01;
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@ -310,11 +311,11 @@ doctrl(Uxn *u, SDL_Event *event, int z)
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switch(event->key.keysym.sym) {
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case SDLK_BACKSPACE:
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flag = 0x04;
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if(z) devkey->mem[0] = 0x08;
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if(z) u->ram.dat[0xff40] = 0x08;
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break;
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case SDLK_RETURN:
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flag = 0x08;
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if(z) devkey->mem[0] = 0x0d;
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if(z) u->ram.dat[0xff40] = 0x0d;
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break;
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case SDLK_UP: flag = 0x10; break;
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case SDLK_DOWN: flag = 0x20; break;
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@ -378,44 +379,6 @@ ppnil(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1)
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return b1;
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}
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Uint8
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defaultrw(Device *d, Memory *m, Uint8 b)
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{
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(void)m;
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return d->mem[b];
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}
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Uint8
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consolew(Device *d, Memory *m, Uint8 b)
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{
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if(b)
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printf("%c", b);
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fflush(stdout);
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(void)d;
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(void)m;
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return 0;
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}
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Uint8
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spritew(Device *d, Memory *m, Uint8 b)
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{
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d->mem[d->ptr++] = b;
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if(d->ptr == 7) {
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Uint16 x = (d->mem[2] << 8) + d->mem[3];
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Uint16 y = (d->mem[0] << 8) + d->mem[1];
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Uint16 a = (d->mem[4] << 8) + d->mem[5];
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Uint8 source = d->mem[6] >> 4 & 0xf;
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Uint8 *layer = source % 2 ? screen.fg : screen.bg;
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if(source / 2)
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paintchr(layer, x, y, &m->dat[a]);
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else
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painticn(layer, x, y, &m->dat[a], d->mem[6] & 0xf);
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screen.reqdraw = 1;
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d->ptr = 0;
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}
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return 0;
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}
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#pragma mark - Generics
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int
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@ -432,14 +395,13 @@ start(Uxn *u)
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if(tick < ticknext)
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SDL_Delay(ticknext - tick);
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ticknext = tick + (1000 / FPS);
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devkey->mem[0] = 0x00; /* TODO: cleanup */
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while(SDL_PollEvent(&event) != 0) {
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switch(event.type) {
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case SDL_QUIT: quit(); break;
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case SDL_MOUSEBUTTONUP:
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case SDL_MOUSEBUTTONDOWN:
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case SDL_MOUSEMOTION: domouse(u, &event); break;
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case SDL_TEXTINPUT: dotext(&event); break;
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case SDL_TEXTINPUT: dotext(u, &event); break;
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case SDL_KEYDOWN: doctrl(u, &event, 1); break;
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case SDL_KEYUP: doctrl(u, &event, 0); break;
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case SDL_WINDOWEVENT:
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@ -468,12 +430,12 @@ main(int argc, char **argv)
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if(!init())
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return error("Init", "Failed");
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devconsole = portuxn(&u, "console", defaultrw, consolew, ppnil, console_poke);
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devscreen = portuxn(&u, "screen", defaultrw, defaultrw, ppnil, screen_poke);
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devsprite = portuxn(&u, "sprite", defaultrw, spritew, ppnil, sprite_poke);
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devcontroller = portuxn(&u, "controller", defaultrw, defaultrw, ppnil, ppnil);
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devkey = portuxn(&u, "key", defaultrw, consolew, ppnil, ppnil);
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devmouse = portuxn(&u, "mouse", defaultrw, defaultrw, ppnil, ppnil);
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devconsole = portuxn(&u, "console", ppnil, console_poke);
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devscreen = portuxn(&u, "screen", ppnil, screen_poke);
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devsprite = portuxn(&u, "sprite", ppnil, sprite_poke);
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devctrl = portuxn(&u, "controller", ppnil, ppnil);
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devkey = portuxn(&u, "key", ppnil, ppnil);
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devmouse = portuxn(&u, "mouse", ppnil, ppnil);
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u.ram.dat[0xff10] = (HOR * 8 >> 8) & 0xff;
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u.ram.dat[0xff11] = HOR * 8 & 0xff;
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@ -1,4 +1,4 @@
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( controller )
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( dev/ctrl )
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&Screen { width 2 height 2 pad 4 y 2 x 2 color 1 }
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&Sprite { pad 8 x 2 y 2 addr 2 color 1 }
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@ -0,0 +1,134 @@
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( dev/key )
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&Screen { width 2 height 2 pad 4 y 2 x 2 color 1 }
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&Sprite { pad 8 x 2 y 2 addr 2 color 1 }
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&Keyboard { key 1 }
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&Point2d { x 2 y 2 }
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&Rect2d { x1 2 y1 2 x2 2 y2 2 }
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;pos Point2d
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;rect Rect2d
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;color 1
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;textlen 2
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|0100 @RESET
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,redraw JSR
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BRK
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|c000 @FRAME
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~dev/key #00 EQU ,key-end ROT JMP? POP2
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( is backspace )
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~dev/key #08 NEQ ,no-key-back ROT JMP? POP2
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#00 ,body ~textlen ADD2 STR
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~textlen #0001 SUB2 =textlen
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,key-end JMP
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@no-key-back
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~textlen #0001 ADD2 =textlen
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~dev/key ,body ~textlen ADD2 STR
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,redraw JSR
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#00 =dev/key ( release key )
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@key-end
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BRK
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@redraw
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#02 =color
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#0040 #0040 #0090 #0090 ,fill-rect JSR
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#06 =color
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,body #0040 #0040 ,draw-label-multiline JSR
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RTS
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@draw-label-multiline ( text x1 y1 )
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=pos.y =pos.x
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@draw-label-multiline-loop
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( draw ) DUP2 LDR #00 SWP #0008 MUL2 ,font ADD2 =dev/sprite.addr
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~pos.y =dev/sprite.y
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~pos.x =dev/sprite.x
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~color =dev/sprite.color
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( incr ) #0001 ADD2
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( incr ) ~pos.x #0008 ADD2 =pos.x
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( detect linebreaks )
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DUP2 LDR #0d NEQ ,no-return ROT JMP? POP2
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#0048 =pos.x
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~pos.y #0008 ADD2 =pos.y
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@no-return
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DUP2 LDR #00 NEQ ,draw-label-multiline-loop ROT JMP? POP2
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POP2
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RTS
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@fill-rect ( x1 y1 x2 y2 )
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=rect.y2 =rect.x2 ( stash x1 y1 ) =rect.y1 DUP2 WSR2 =rect.x1
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@fill-rect-ver
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RSW2 DUP2 =rect.x1 WSR2
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~rect.y1 =dev/screen.y
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@fill-rect-hor
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( draw ) ~rect.x1 =dev/screen.x ~color =dev/screen.color
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( incr ) ~rect.x1 #0001 ADD2 DUP2 =rect.x1
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~rect.x2 LTH2 ,fill-rect-hor ROT JMP? POP2
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~rect.y1 #0001 ADD2 DUP2 =rect.y1
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~rect.y2 LTH2 ,fill-rect-ver ROT JMP? POP2
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RSW2 POP2
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RTS
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@draw-sprite
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=dev/sprite.x
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=dev/sprite.y
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=dev/sprite.addr
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=dev/sprite.color
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RTS
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@font ( spectrum-zx font )
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[
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0000 0000 0000 0000 0000 2400 7e3c 0000 0000 2400 3c42 0000 0000 6c7c 7c38 1000
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0010 387c 7c38 1000 0038 387c 6c10 3800 0010 387c 7c10 3800 0000 0018 1800 0000
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007e 4242 4242 7e00 0000 1824 2418 0000 0018 2442 4224 1800 001e 063a 4a48 3000
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0038 446c 107c 1000 000c 0808 0838 3800 003e 2222 2266 6600 0000 0822 0022 0800
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0000 1018 1c18 1000 0000 0818 3818 0800 0008 1c00 001c 0800 0028 2828 2800 2800
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003e 4a4a 3a0a 0a00 000c 3046 620c 3000 0000 0000 0000 ffff 0010 3800 3810 0038
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0008 1c2a 0808 0800 0008 0808 2a1c 0800 0000 0804 7e04 0800 0000 1020 7e20 1000
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0000 4040 7e00 0000 0000 0024 6624 0000 0000 1038 7c00 0000 0000 007c 3810 0000
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0000 0000 0000 0000 0008 0808 0800 0800 0014 1400 0000 0000 0024 7e24 247e 2400
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0008 1e28 1c0a 3c08 0042 0408 1020 4200 0030 4832 4c44 3a00 0008 1000 0000 0000
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0004 0808 0808 0400 0010 0808 0808 1000 0000 1408 3e08 1400 0000 0808 3e08 0800
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0000 0000 0008 0810 0000 0000 3c00 0000 0000 0000 0000 0800 0000 0204 0810 2000
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003c 464a 5262 3c00 0018 2808 0808 3e00 003c 4202 3c40 7e00 003c 421c 0242 3c00
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0008 1828 487e 0800 007e 407c 0242 3c00 003c 407c 4242 3c00 007e 0204 0810 1000
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003c 423c 4242 3c00 003c 4242 3e02 3c00 0000 0008 0000 0800 0000 0800 0008 0810
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0000 0810 2010 0800 0000 003e 003e 0000 0000 1008 0408 1000 003c 4202 0c00 0800
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003c 425a 5442 3c00 0018 2442 7e42 4200 007c 427c 4242 7c00 003c 4240 4042 3c00
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0078 4442 4244 7800 007e 407c 4040 7e00 003e 4040 7c40 4000 003c 4240 4e42 3c00
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0042 427e 4242 4200 003e 0808 0808 3e00 0002 0202 4242 3c00 0044 4870 4844 4200
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0040 4040 4040 7e00 0042 665a 4242 4200 0042 6252 4a46 4200 003c 4242 4242 3c00
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007c 4242 7c40 4000 003c 4242 524a 3c00 007c 4242 7c44 4200 003c 403c 0242 3c00
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00fe 1010 1010 1000 0042 4242 4242 3c00 0042 4242 4224 1800 0042 4242 5a66 4200
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0042 2418 1824 4200 0082 4428 1010 1000 007e 0408 1020 7e00 000c 0808 0808 0c00
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0040 2010 0804 0200 0018 0808 0808 1800 0008 1422 0000 0000 0000 0000 0000 7e00
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0008 0400 0000 0000 0000 1c02 1e22 1e00 0020 203c 2222 3c00 0000 1e20 2020 1e00
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0002 021e 2222 1e00 0000 1c22 3c20 1e00 000c 101c 1010 1000 0000 1c22 221e 021c
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0020 202c 3222 2200 0008 0018 0808 0400 0008 0008 0808 4830 0020 2428 3028 2400
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0010 1010 1010 0c00 0000 6854 5454 5400 0000 5864 4444 4400 0000 3844 4444 3800
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0000 7844 4478 4040 0000 3c44 443c 0406 0000 2c30 2020 2000 0000 3840 3804 7800
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0010 103c 1010 0c00 0000 4444 4444 3800 0000 4444 2828 1000 0000 4454 5454 2800
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0000 4428 1028 4400 0000 4444 443c 0438 0000 7c08 1020 7c00 000c 0810 1008 0c00
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0008 0808 0808 0800 0030 1008 0810 3000 0000 0032 4c00 0000 3c42 99a1 a199 423c
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]
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@body [ ]
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|d000 @ERROR BRK
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|FF10 ;dev/screen Screen
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|FF20 ;dev/sprite Sprite
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|FF40 ;dev/key Keyboard
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|FFF0 [ f0ff f00f f00f ] ( palette )
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|FFFA .RESET .FRAME .ERROR
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@ -1,4 +1,4 @@
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( mouse )
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( dev/mouse )
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&Screen { width 2 height 2 pad 4 y 2 x 2 color 1 }
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&Sprite { pad 8 x 2 y 2 addr 2 color 1 }
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@ -1,4 +1,4 @@
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( screen )
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( dev/screen )
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&Screen { width 2 height 2 pad 4 x 2 y 2 color 1 }
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@ -1,233 +0,0 @@
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( mouse )
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:dev/r fff8 ( std read port )
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:dev/w fff9 ( std write port )
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&Point2d { x 2 y 2 }
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&Window2d { x1 2 y1 2 x2 2 y2 2 }
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;pos Point2d
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;mouse Point2d
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;scenter Point2d
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;win Window2d
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( drawing ) ;color 1 ;x1 2 ;x2 2 ;y1 2 ;y2 2 ;i 2
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;state 1 ;textlen 2
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|0100 @RESET
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#01 =dev/r ( read screen for size )
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#02 =dev/w ( write to screen )
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#08 =color
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,paint-pattern JSR
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#01 =dev/w ( write to screen )
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#00 IOR2 #0002 DIV2 =scenter.x
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#02 IOR2 #0002 DIV2 =scenter.y
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~scenter.x #0050 SUB2
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~scenter.y #0030 SUB2
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~scenter.x #0050 ADD2
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~scenter.y #0030 ADD2 ,paint-window JSR
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#05 =dev/r ( set dev/read mouse )
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#02 =dev/w ( set dev/write to sprite )
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#09 =color
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BRK
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|c000 @FRAME
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( clear last cursor )
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#10 ,clear_icn ~mouse.x ~mouse.y ,draw-sprite JSR
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( record mouse positions )
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#05 =dev/r ( set dev/read mouse )
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#00 IOR2 =mouse.x
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#02 IOR2 =mouse.y
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#11 =state
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#04 IOR #01 NEQ ,no-touch ROT JMP? POP2
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#13 =state
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@no-touch
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( clear window )
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#04 =dev/r ( set dev/read mouse )
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#00 IOR #00 EQU ,key-end ROT JMP? POP2
|
||||
|
||||
( is backspace )
|
||||
#00 IOR #08 NEQ ,no-key-back ROT JMP? POP2
|
||||
#00 ,body ~textlen ADD2 STR
|
||||
~textlen #0001 SUB2 =textlen
|
||||
,redraw-body-label JSR
|
||||
,key-end JMP
|
||||
@no-key-back
|
||||
|
||||
~textlen #0001 ADD2 =textlen
|
||||
#00 IOR ,body ~textlen ADD2 STR
|
||||
,redraw-body-label JSR
|
||||
@key-end
|
||||
|
||||
( draw mouse )
|
||||
~state ,cursor_icn ~mouse.x ~mouse.y ,draw-sprite JSR
|
||||
|
||||
BRK
|
||||
|
||||
@redraw-body-label
|
||||
|
||||
#02 =color
|
||||
#01 =dev/w ( write to screen )
|
||||
~win.x1 #0004 ADD2 ~win.y1 #0004 ADD2 ~win.x2 #0010 SUB2 ~win.y2 #0010 SUB2 ,fill-rect JSR
|
||||
#02 =dev/w ( write to sprite )
|
||||
#06 =color
|
||||
,body ~win.x1 #0018 ADD2 ~scenter.y ,draw-label JSR
|
||||
|
||||
RTS
|
||||
|
||||
@paint-pattern ( nil )
|
||||
|
||||
#01 =dev/r ( read screen for size )
|
||||
#02 =dev/w ( write to sprite )
|
||||
|
||||
#0000
|
||||
@paint-pattern-loop-hor
|
||||
#0000
|
||||
@paint-pattern-loop
|
||||
( draw ) OVR2 IOW2 DUP2 IOW2 ,pattern IOW2 ~color IOW
|
||||
( incr ) #0008 ADD2 DUP2
|
||||
#00 IOR2 LTH2 ,paint-pattern-loop ROT JMP? POP2
|
||||
POP2
|
||||
( incr ) #0008 ADD2 DUP2
|
||||
#02 IOR2 LTH2 ,paint-pattern-loop-hor ROT JMP? POP2
|
||||
POP2
|
||||
|
||||
RTS
|
||||
|
||||
@paint-window ( name wx1 wy1 wx2 wy2 )
|
||||
|
||||
=win.y2 =win.x2 =win.y1 =win.x1
|
||||
|
||||
( Draw shadow )
|
||||
#01 =color
|
||||
~win.x2 ~win.y1 #0003 ADD2 ~win.x2 #0003 ADD2 ~win.y2 #0003 ADD2 ,fill-rect JSR
|
||||
~win.x1 #0003 ADD2 ~win.y2 ~win.x2 #0003 ADD2 ~win.y2 #0003 ADD2 ,fill-rect JSR
|
||||
( Fill background )
|
||||
#02 =color
|
||||
~win.x1 ~win.y1 ~win.x2 ~win.y2 ,fill-rect JSR
|
||||
( draw outline )
|
||||
#01 =color
|
||||
~win.x1 ~win.y1 ~win.x2 ~win.y2 ,line-rect JSR
|
||||
#01 =color
|
||||
~win.x1 #0002 ADD2 ~win.y1 #0002 ADD2 ~win.x2 #0002 SUB2 ~win.y2 #0002 SUB2 ,line-rect JSR
|
||||
|
||||
RTS
|
||||
|
||||
@draw-label ( text x1 y1 )
|
||||
|
||||
=pos.y =pos.x
|
||||
@draw-label-loop
|
||||
|
||||
( draw ) ~pos.x ~pos.y IOW2 IOW2 DUP2 LDR #00 SWP #0008 MUL2 ,font ADD2 IOW2 ~color IOW
|
||||
( incr ) #0001 ADD2
|
||||
( incr ) ~pos.x #0008 ADD2 =pos.x
|
||||
|
||||
( detect linebreaks )
|
||||
DUP2 LDR #0d NEQ ,no-return ROT JMP? POP2
|
||||
#0048 =pos.x
|
||||
( incr ) ~pos.y #0008 ADD2 =pos.y
|
||||
@no-return
|
||||
|
||||
DUP2 LDR #00 NEQ ,draw-label-loop ROT JMP? POP2
|
||||
POP2
|
||||
|
||||
RTS
|
||||
|
||||
@fill-rect ( x1 y1 x2 y2 )
|
||||
=y2 =x2 ( stash x1 y1 ) =y1 DUP2 WSR2 =x1
|
||||
@fill-rect-ver
|
||||
RSW2 DUP2 =x1 WSR2
|
||||
@fill-rect-hor
|
||||
( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
|
||||
( incr ) ~x1 #0001 ADD2 DUP2 =x1
|
||||
~x2 LTH2 ,fill-rect-hor ROT JMP? POP2
|
||||
~y1 #0001 ADD2 DUP2 =y1
|
||||
~y2 LTH2 ,fill-rect-ver ROT JMP? POP2
|
||||
RSW2 POP2
|
||||
RTS
|
||||
|
||||
@line-rect ( x1 y1 x2 y2 )
|
||||
=y2 =x2 ( stash x1 y1 ) DUP2 WSR2 =y1 DUP2 WSR2 =x1
|
||||
@line-rect-hor
|
||||
( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
|
||||
( draw ) ~x1 ~y2 IOW2 IOW2 ~color IOW
|
||||
( incr ) ~x1 #0001 ADD2 DUP2 =x1
|
||||
~x2 #0001 ADD2 LTH2 ,line-rect-hor ROT JMP? POP2
|
||||
( restore x1 y1 ) RSW2 =x1 RSW2 =y1
|
||||
@line-rect-ver
|
||||
( incr ) ~y1 #0001 ADD2 DUP2 =y1
|
||||
( draw ) ~x1 ~y1 IOW2 IOW2 ~color IOW
|
||||
( draw ) ~x2 ~y1 IOW2 IOW2 ~color IOW
|
||||
~y2 #0001 SUB2 LTH2 ,line-rect-ver ROT JMP? POP2
|
||||
RTS
|
||||
|
||||
@draw-sprite
|
||||
IOW2 ( y byte )
|
||||
IOW2 ( x byte )
|
||||
IOW2 ( sprite address )
|
||||
IOW ( layer-color )
|
||||
RTS
|
||||
|
||||
@pattern [ 4281 1824 2418 8142 ]
|
||||
|
||||
@clear_icn [ 0000 0000 0000 0000 ]
|
||||
@cursor_icn [ 80c0 e0f0 f8e0 1000 ]
|
||||
|
||||
@mouse0_icn [ 7c82 92ee 8282 4438 ]
|
||||
@mouse1_icn [ 7cf2 f2ee 8282 4438 ]
|
||||
@mouse2_icn [ 7c9e 9eee 8282 4438 ]
|
||||
@mouse12_icn [ 7cfe feee 8282 4438 ]
|
||||
|
||||
@font ( spectrum-zx font )
|
||||
[
|
||||
0000 0000 0000 0000 0000 2400 7e3c 0000 0000 2400 3c42 0000 0000 6c7c 7c38 1000
|
||||
0010 387c 7c38 1000 0038 387c 6c10 3800 0010 387c 7c10 3800 0000 0018 1800 0000
|
||||
007e 4242 4242 7e00 0000 1824 2418 0000 0018 2442 4224 1800 001e 063a 4a48 3000
|
||||
0038 446c 107c 1000 000c 0808 0838 3800 003e 2222 2266 6600 0000 0822 0022 0800
|
||||
0000 1018 1c18 1000 0000 0818 3818 0800 0008 1c00 001c 0800 0028 2828 2800 2800
|
||||
003e 4a4a 3a0a 0a00 000c 3046 620c 3000 0000 0000 0000 ffff 0010 3800 3810 0038
|
||||
0008 1c2a 0808 0800 0008 0808 2a1c 0800 0000 0804 7e04 0800 0000 1020 7e20 1000
|
||||
0000 4040 7e00 0000 0000 0024 6624 0000 0000 1038 7c00 0000 0000 007c 3810 0000
|
||||
0000 0000 0000 0000 0008 0808 0800 0800 0014 1400 0000 0000 0024 7e24 247e 2400
|
||||
0008 1e28 1c0a 3c08 0042 0408 1020 4200 0030 4832 4c44 3a00 0008 1000 0000 0000
|
||||
0004 0808 0808 0400 0010 0808 0808 1000 0000 1408 3e08 1400 0000 0808 3e08 0800
|
||||
0000 0000 0008 0810 0000 0000 3c00 0000 0000 0000 0000 0800 0000 0204 0810 2000
|
||||
003c 464a 5262 3c00 0018 2808 0808 3e00 003c 4202 3c40 7e00 003c 421c 0242 3c00
|
||||
0008 1828 487e 0800 007e 407c 0242 3c00 003c 407c 4242 3c00 007e 0204 0810 1000
|
||||
003c 423c 4242 3c00 003c 4242 3e02 3c00 0000 0008 0000 0800 0000 0800 0008 0810
|
||||
0000 0810 2010 0800 0000 003e 003e 0000 0000 1008 0408 1000 003c 4202 0c00 0800
|
||||
003c 425a 5442 3c00 0018 2442 7e42 4200 007c 427c 4242 7c00 003c 4240 4042 3c00
|
||||
0078 4442 4244 7800 007e 407c 4040 7e00 003e 4040 7c40 4000 003c 4240 4e42 3c00
|
||||
0042 427e 4242 4200 003e 0808 0808 3e00 0002 0202 4242 3c00 0044 4870 4844 4200
|
||||
0040 4040 4040 7e00 0042 665a 4242 4200 0042 6252 4a46 4200 003c 4242 4242 3c00
|
||||
007c 4242 7c40 4000 003c 4242 524a 3c00 007c 4242 7c44 4200 003c 403c 0242 3c00
|
||||
00fe 1010 1010 1000 0042 4242 4242 3c00 0042 4242 4224 1800 0042 4242 5a66 4200
|
||||
0042 2418 1824 4200 0082 4428 1010 1000 007e 0408 1020 7e00 000c 0808 0808 0c00
|
||||
0040 2010 0804 0200 0018 0808 0808 1800 0008 1422 0000 0000 0000 0000 0000 7e00
|
||||
0008 0400 0000 0000 0000 1c02 1e22 1e00 0020 203c 2222 3c00 0000 1e20 2020 1e00
|
||||
0002 021e 2222 1e00 0000 1c22 3c20 1e00 000c 101c 1010 1000 0000 1c22 221e 021c
|
||||
0020 202c 3222 2200 0008 0018 0808 0400 0008 0008 0808 4830 0020 2428 3028 2400
|
||||
0010 1010 1010 0c00 0000 6854 5454 5400 0000 5864 4444 4400 0000 3844 4444 3800
|
||||
0000 7844 4478 4040 0000 3c44 443c 0406 0000 2c30 2020 2000 0000 3840 3804 7800
|
||||
0010 103c 1010 0c00 0000 4444 4444 3800 0000 4444 2828 1000 0000 4454 5454 2800
|
||||
0000 4428 1028 4400 0000 4444 443c 0438 0000 7c08 1020 7c00 000c 0810 1008 0c00
|
||||
0008 0808 0808 0800 0030 1008 0810 3000 0000 0032 4c00 0000 3c42 99a1 a199 423c
|
||||
]
|
||||
|
||||
@body [ ]
|
||||
|
||||
|d000 @ERROR BRK
|
||||
|FFF0 [ f0ff f00f f00f ] ( palette )
|
||||
|FFFA .RESET .FRAME .ERROR
|
||||
16
uxn.c
16
uxn.c
|
|
@ -34,8 +34,6 @@ Uint16 peek16(Stack *s, Uint8 a) { return peek8(s, a * 2) + (peek8(s, a * 2 + 1)
|
|||
void op_brk(Uxn *u) { setflag(&u->status, FLAG_HALT, 1); }
|
||||
void op_lit(Uxn *u) { u->literal += 1; }
|
||||
void op_nop(Uxn *u) { printf("0x%02x \n", pop8(&u->wst)); fflush(stdout); }
|
||||
void op_ior(Uxn *u) { Device *dev = &u->dev[mempeek8(u, u->devr)]; if(dev) push8(&u->wst, dev->read(dev, &u->ram, pop8(&u->wst))); }
|
||||
void op_iow(Uxn *u) { Uint8 a = pop8(&u->wst); Device *dev = &u->dev[mempeek8(u, u->devw)]; if(dev) dev->write(dev, &u->ram, a); }
|
||||
void op_ldr(Uxn *u) { Uint16 a = pop16(&u->wst); push8(&u->wst, mempeek8(u, a)); }
|
||||
void op_str(Uxn *u) { Uint16 a = pop16(&u->wst); Uint8 b = pop8(&u->wst); mempoke8(u, a, b); }
|
||||
/* Logic */
|
||||
|
|
@ -66,8 +64,6 @@ void op_lth(Uxn *u) { Uint8 a = pop8(&u->wst), b = pop8(&u->wst); push8(&u->wst,
|
|||
/* --- */
|
||||
void op_lit16(Uxn *u) { u->literal += 2; }
|
||||
void op_nop16(Uxn *u) { printf("%04x\n", pop16(&u->wst)); }
|
||||
void op_ior16(Uxn *u) { Uint8 a = pop8(&u->wst); Device *dev = &u->dev[mempeek8(u, u->devr)]; if(dev) push16(&u->wst, (dev->read(dev, &u->ram, a) << 8) + dev->read(dev, &u->ram, a + 1)); }
|
||||
void op_iow16(Uxn *u) { Uint8 a = pop8(&u->wst); Uint8 b = pop8(&u->wst); Device *dev = &u->dev[mempeek8(u, u->devw)]; if(dev) { dev->write(dev, &u->ram, b); dev->write(dev, &u->ram, a); } }
|
||||
void op_ldr16(Uxn *u) { Uint16 a = pop16(&u->wst); push16(&u->wst, mempeek16(u, a)); }
|
||||
void op_str16(Uxn *u) { Uint16 a = pop16(&u->wst); Uint16 b = pop16(&u->wst); mempoke16(u, a, b); }
|
||||
void op_and16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push16(&u->wst, b & a); }
|
||||
|
|
@ -93,12 +89,12 @@ void op_gth16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push8(&u-
|
|||
void op_lth16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push8(&u->wst, getflag(&u->status, FLAG_SIGN) ? (Sint16)b < (Sint16)a : b < a); }
|
||||
|
||||
void (*ops[])(Uxn *u) = {
|
||||
op_brk, op_nop, op_lit, op_nop, op_ior, op_iow, op_ldr, op_str,
|
||||
op_brk, op_nop, op_lit, op_nop, op_nop, op_nop, op_ldr, op_str,
|
||||
op_jmp, op_jsr, op_nop, op_rts, op_and, op_ora, op_rol, op_ror,
|
||||
op_pop, op_dup, op_swp, op_ovr, op_rot, op_wsr, op_rsw, op_nop,
|
||||
op_add, op_sub, op_mul, op_div, op_equ, op_neq, op_gth, op_lth,
|
||||
/* 16-bit */
|
||||
op_brk, op_nop16, op_lit16, op_nop, op_ior16, op_iow16, op_ldr16, op_str16,
|
||||
op_brk, op_nop16, op_lit16, op_nop, op_nop, op_nop, op_ldr16, op_str16,
|
||||
op_jmp, op_jsr, op_nop, op_rts, op_and16, op_ora16, op_rol16, op_ror16,
|
||||
op_pop16, op_dup16, op_swp16, op_ovr16, op_rot16, op_wsr16, op_rsw16, op_nop,
|
||||
op_add16, op_sub16, op_mul16, op_div16, op_equ16, op_neq16, op_gth16, op_lth16
|
||||
|
|
@ -211,14 +207,12 @@ loaduxn(Uxn *u, char *filepath)
|
|||
}
|
||||
|
||||
Device *
|
||||
portuxn(Uxn *u, char *name, Uint8 (*rfn)(Device *, Memory *, Uint8), Uint8 (*wfn)(Device *, Memory *, Uint8), Uint8 (*pefn)(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1), Uint8 (*pofn)(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1))
|
||||
portuxn(Uxn *u, char *name, Uint8 (*pefn)(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1), Uint8 (*pofn)(Uint8 *m, Uint16 ptr, Uint8 b0, Uint8 b1))
|
||||
{
|
||||
Device *d = &u->dev[u->devices++];
|
||||
d->read = rfn;
|
||||
d->write = wfn;
|
||||
d->addr = 0xff00 + (u->devices - 1) * 0x10;
|
||||
d->peek = pefn;
|
||||
d->poke = pofn;
|
||||
d->ptr = 0;
|
||||
printf("Device #%d: %s \n", u->devices - 1, name);
|
||||
printf("Device #%d: %s, at 0x%04x \n", u->devices - 1, name, d->addr);
|
||||
return d;
|
||||
}
|
||||
|
|
|
|||
8
uxn.h
8
uxn.h
|
|
@ -32,9 +32,7 @@ typedef struct {
|
|||
} Memory;
|
||||
|
||||
typedef struct Device {
|
||||
Uint8 ptr, mem[8];
|
||||
Uint8 (*read)(struct Device *, Memory *, Uint8);
|
||||
Uint8 (*write)(struct Device *, Memory *, Uint8);
|
||||
Uint16 addr;
|
||||
Uint8 (*peek)(Uint8 *, Uint16, Uint8, Uint8);
|
||||
Uint8 (*poke)(Uint8 *, Uint16, Uint8, Uint8);
|
||||
} Device;
|
||||
|
|
@ -44,7 +42,7 @@ typedef struct {
|
|||
Uint16 counter, devr, devw, vreset, vframe, verror;
|
||||
Stack wst, rst;
|
||||
Memory ram;
|
||||
Device dev[256];
|
||||
Device dev[8];
|
||||
} Uxn;
|
||||
|
||||
void setflag(Uint8 *status, char flag, int b);
|
||||
|
|
@ -52,4 +50,4 @@ int getflag(Uint8 *status, char flag);
|
|||
int loaduxn(Uxn *c, char *filepath);
|
||||
int bootuxn(Uxn *c);
|
||||
int evaluxn(Uxn *u, Uint16 vec);
|
||||
Device *portuxn(Uxn *u, char *name, Uint8 (*rfn)(Device *, Memory *, Uint8), Uint8 (*wfn)(Device *, Memory *, Uint8), Uint8 (*pefn)(Uint8 *, Uint16, Uint8, Uint8), Uint8 (*pofn)(Uint8 *, Uint16, Uint8, Uint8));
|
||||
Device *portuxn(Uxn *u, char *name, Uint8 (*pefn)(Uint8 *, Uint16, Uint8, Uint8), Uint8 (*pofn)(Uint8 *, Uint16, Uint8, Uint8));
|
||||
|
|
|
|||
Loading…
Reference in New Issue