Implemented the screen auto byte
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parent
266152e260
commit
a3502f1637
26
src/uxnemu.c
26
src/uxnemu.c
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@ -303,8 +303,7 @@ system_talk(Device *d, Uint8 b0, Uint8 w)
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case 0x3: d->u->rst.ptr = d->dat[0x3]; break;
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case 0xf: return 0;
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}
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if(b0 > 0x7 && b0 < 0xe)
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docolors(d);
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if(b0 > 0x7 && b0 < 0xe) docolors(d);
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}
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return 1;
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}
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@ -331,10 +330,16 @@ screen_talk(Device *d, Uint8 b0, Uint8 w)
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Uint16 y = peek16(d->dat, 0xa);
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Uint8 layer = d->dat[0xf] >> 0x6 & 0x1;
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Uint8 *addr = &d->mem[peek16(d->dat, 0xc)];
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if(d->dat[0xf] >> 0x7 & 0x1)
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/* Sprite byte */
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if(d->dat[0xf] >> 0x7 & 0x6)
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ppu_2bpp(&ppu, layer, x, y, addr, d->dat[0xf] & 0xf, d->dat[0xf] >> 0x4 & 0x1, d->dat[0xf] >> 0x5 & 0x1);
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else
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ppu_1bpp(&ppu, layer, x, y, addr, d->dat[0xf] & 0xf, d->dat[0xf] >> 0x4 & 0x1, d->dat[0xf] >> 0x5 & 0x1);
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/* Auto byte */
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if(d->dat[0x6] & 0x1) poke16(d->dat, 0x8, x + 8);
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if(d->dat[0x6] & 0x2) poke16(d->dat, 0xa, y + 8);
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if(d->dat[0x6] & 0x3) poke16(d->dat, 0xc, peek16(d->dat, 0xc) + 8);
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if(d->dat[0x6] & 0x4) poke16(d->dat, 0xc, peek16(d->dat, 0xc) + 16);
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reqdraw = 1;
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}
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return 1;
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@ -506,8 +511,7 @@ static int
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load(Uxn *u, char *filepath)
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{
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FILE *f;
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if(!(f = fopen(filepath, "rb")))
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return 0;
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if(!(f = fopen(filepath, "rb"))) return 0;
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fread(u->ram.dat + PAGE_PROGRAM, sizeof(u->ram.dat) - PAGE_PROGRAM, 1, f);
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fprintf(stderr, "Loaded %s\n", filepath);
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return 1;
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@ -522,14 +526,10 @@ main(int argc, char **argv)
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audio0_event = SDL_RegisterEvents(POLYPHONY);
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SDL_CreateThread(stdin_handler, "stdin", NULL);
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if(argc < 2)
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return error("usage", "uxnemu file.rom");
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if(!uxn_boot(&u))
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return error("Boot", "Failed to start uxn.");
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if(!load(&u, argv[1]))
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return error("Load", "Failed to open rom.");
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if(!init())
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return error("Init", "Failed to initialize emulator.");
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if(argc < 2) return error("usage", "uxnemu file.rom");
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if(!uxn_boot(&u)) return error("Boot", "Failed to start uxn.");
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if(!load(&u, argv[1])) return error("Load", "Failed to open rom.");
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if(!init()) return error("Init", "Failed to initialize emulator.");
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/* system */ devsystem = uxn_port(&u, 0x0, system_talk);
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/* console */ devconsole = uxn_port(&u, 0x1, console_talk);
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