Port uxnrpi main function
This commit is contained in:
Bad Diode
parent
bfd3c8ece9
commit
232f303cf1
187
src/main.c
187
src/main.c
|
|
@ -13,36 +13,175 @@
|
|||
#include "uxn-fast.c"
|
||||
#include "rom.c"
|
||||
|
||||
// static Uxn u;
|
||||
// static Device *devscreen;
|
||||
// static Device *devctrl;
|
||||
// static Device *devmouse;
|
||||
// static Device *devaudio;
|
||||
static Uxn u;
|
||||
static Device *devscreen;
|
||||
static Device *devctrl;
|
||||
static Device *devmouse;
|
||||
static Device *devaudio;
|
||||
|
||||
void
|
||||
nil_talk(Device *d, u8 b0, u8 w) {
|
||||
(void)d;
|
||||
(void)b0;
|
||||
(void)w;
|
||||
}
|
||||
|
||||
void
|
||||
console_talk(Device *d, u8 b0, u8 w) {
|
||||
(void)d;
|
||||
(void)b0;
|
||||
(void)w;
|
||||
// char stmp[2];
|
||||
// if(!w) {
|
||||
// return;
|
||||
// }
|
||||
// switch(b0) {
|
||||
// case 0x8: stmp[0] = d->dat[0x8]; stmp[1] = 0; uart_puts(stmp); break;
|
||||
// TODO: implement printf for the uart to be able to format
|
||||
// numbers.
|
||||
// case 0x9: txt_printf("0x%02x", d->dat[0x9]); break;
|
||||
// case 0xb: txt_printf("0x%04x", mempeek16(d->dat, 0xa)); break;
|
||||
// case 0xd: txt_printf("%s", &d->mem[mempeek16(d->dat, 0xc)]); break;
|
||||
// }
|
||||
}
|
||||
|
||||
static void
|
||||
docolors(Device *d) {
|
||||
for(size_t i = 0; i < 4; ++i) {
|
||||
u8 r = ((d->dat[0x8 + i / 2] >> (!(i % 2) << 2)) & 0x0f) * 0x11;
|
||||
u8 g = ((d->dat[0xa + i / 2] >> (!(i % 2) << 2)) & 0x0f) * 0x11;
|
||||
u8 b = ((d->dat[0xc + i / 2] >> (!(i % 2) << 2)) & 0x0f) * 0x11;
|
||||
|
||||
if (rgb_order) {
|
||||
palette[i] = (b << 16) | (g << 8) | r;
|
||||
} else {
|
||||
palette[i] = (r << 16) | (g << 8) | b;
|
||||
}
|
||||
}
|
||||
for(size_t i = 4; i < 16; ++i) {
|
||||
palette[i] = palette[i / 4];
|
||||
}
|
||||
|
||||
// Redraw the screen if we change the color palette.
|
||||
reqdraw = 1;
|
||||
redraw_screen();
|
||||
}
|
||||
|
||||
void
|
||||
system_talk(Device *d, u8 b0, u8 w) {
|
||||
if(!w) { /* read */
|
||||
switch(b0) {
|
||||
case 0x2: d->dat[0x2] = d->u->wst.ptr; break;
|
||||
case 0x3: d->dat[0x3] = d->u->rst.ptr; break;
|
||||
}
|
||||
} else { /* write */
|
||||
switch(b0) {
|
||||
case 0x2: d->u->wst.ptr = d->dat[0x2]; break;
|
||||
case 0x3: d->u->rst.ptr = d->dat[0x3]; break;
|
||||
case 0xf: d->u->ram.ptr = 0x0000; break;
|
||||
}
|
||||
if(b0 > 0x7 && b0 < 0xe) {
|
||||
docolors(d);
|
||||
}
|
||||
}
|
||||
(void)b0;
|
||||
}
|
||||
|
||||
void
|
||||
screen_talk(Device *d, u8 b0, u8 w) {
|
||||
if(w && b0 == 0xe) {
|
||||
Uint16 x = mempeek16(d->dat, 0x8);
|
||||
Uint16 y = mempeek16(d->dat, 0xa);
|
||||
Uint8 layer = d->dat[0xe] >> 4 & 0x1;
|
||||
ppu_pixel(layer, x, y, d->dat[0xe] & 0x3);
|
||||
reqdraw = 1;
|
||||
} else if(w && b0 == 0xf) {
|
||||
Uint16 x = mempeek16(d->dat, 0x8);
|
||||
Uint16 y = mempeek16(d->dat, 0xa);
|
||||
Uint8 layer = d->dat[0xf] >> 0x6 & 0x1;
|
||||
Uint8 *addr = &d->mem[mempeek16(d->dat, 0xc)];
|
||||
if(d->dat[0xf] >> 0x7 & 0x1)
|
||||
ppu_2bpp(layer, x, y, addr, d->dat[0xf] & 0xf, d->dat[0xf] >> 0x4 & 0x1, d->dat[0xf] >> 0x5 & 0x1);
|
||||
else
|
||||
ppu_1bpp(layer, x, y, addr, d->dat[0xf] & 0xf, d->dat[0xf] >> 0x4 & 0x1, d->dat[0xf] >> 0x5 & 0x1);
|
||||
reqdraw = 1;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
audio_talk(Device *d, u8 b0, u8 w) {
|
||||
// TODO: Implement...
|
||||
(void)d;
|
||||
(void)b0;
|
||||
(void)w;
|
||||
}
|
||||
|
||||
void
|
||||
datetime_talk(Device *d, u8 b0, u8 w) {
|
||||
// TODO: Implement...
|
||||
(void)d;
|
||||
(void)b0;
|
||||
(void)w;
|
||||
}
|
||||
|
||||
void
|
||||
file_talk(Device *d, u8 b0, u8 w) {
|
||||
// TODO: Implement...
|
||||
(void)d;
|
||||
(void)b0;
|
||||
(void)w;
|
||||
}
|
||||
|
||||
void
|
||||
init_uxn() {
|
||||
// Clear UXN memory.
|
||||
memset(&u, 0, sizeof(Uxn));
|
||||
|
||||
ppu_init();
|
||||
|
||||
// Copy rom to VM.
|
||||
memcpy(u.ram.dat + PAGE_PROGRAM, uxn_rom, sizeof(uxn_rom));
|
||||
|
||||
// Prepare devices.
|
||||
uxn_port(&u, 0x0, "system", system_talk);
|
||||
uxn_port(&u, 0x1, "console", console_talk);
|
||||
devscreen = uxn_port(&u, 0x2, "screen", screen_talk);
|
||||
devaudio = uxn_port(&u, 0x3, "audio0", audio_talk);
|
||||
uxn_port(&u, 0x4, "audio1", audio_talk);
|
||||
uxn_port(&u, 0x5, "audio2", audio_talk);
|
||||
uxn_port(&u, 0x6, "audio3", audio_talk);
|
||||
uxn_port(&u, 0x7, "---", nil_talk);
|
||||
devctrl = uxn_port(&u, 0x8, "controller", nil_talk);
|
||||
devmouse = uxn_port(&u, 0x9, "mouse", nil_talk);
|
||||
uxn_port(&u, 0xa, "file", file_talk);
|
||||
uxn_port(&u, 0xb, "datetime", datetime_talk);
|
||||
uxn_port(&u, 0xc, "---", nil_talk);
|
||||
uxn_port(&u, 0xd, "---", nil_talk);
|
||||
uxn_port(&u, 0xe, "---", nil_talk);
|
||||
uxn_port(&u, 0xf, "---", nil_talk);
|
||||
mempoke16(devscreen->dat, 2, screen_width);
|
||||
mempoke16(devscreen->dat, 4, screen_height);
|
||||
}
|
||||
|
||||
int
|
||||
main(void) {
|
||||
ppu_init();
|
||||
init_uxn();
|
||||
|
||||
// Main loop.
|
||||
uint8_t shade = 0;
|
||||
size_t counter = 0;
|
||||
size_t direction = 1;
|
||||
uxn_eval(&u, 0x0100);
|
||||
// u64 current_ticks = timer_get_ticks();
|
||||
while (true) {
|
||||
for (size_t j = 0; j < screen_height; j++) {
|
||||
for (size_t i = 0; i < screen_width; i++) {
|
||||
framebuffer[j * screen_width + i] = shade;
|
||||
}
|
||||
}
|
||||
counter++;
|
||||
if (counter > 10) {
|
||||
shade += direction;
|
||||
counter = 0;
|
||||
}
|
||||
if (shade == 0xFF) {
|
||||
direction = -1;
|
||||
} else if (shade == 0x00) {
|
||||
direction = 1;
|
||||
}
|
||||
// Echo input to standard output.
|
||||
uxn_eval(&u, mempeek16(devscreen->dat, 0));
|
||||
|
||||
// Blit ppu.pixels to the framebuffer.
|
||||
blit_framebuffer();
|
||||
|
||||
// TODO: Sync at 60 Hz.
|
||||
// if ((timer_get_ticks() - current_ticks) < 16666) {
|
||||
// wait(16666 - (timer_get_ticks() - current_ticks));
|
||||
// }
|
||||
// current_ticks = timer_get_ticks();
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
|
|
|||
Loading…
Reference in New Issue