etc
/
uxn
mirror of https://git.sr.ht/~rabbits/uxn
0
1
Fork 0
Code Issues Projects Releases Wiki Activity

Removed some globals

This commit is contained in:
neauoire 2021-04-08 09:59:45 -07:00
parent c9ddd01696
commit 69f770f56f
7 changed files with 67 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
build.sh
View File

@ -30,7 +30,7 @@ else
fi
echo "Assembling.."
./bin/assembler projects/examples/dev.audio.usm bin/boot.rom
./bin/assembler projects/software/noodle.usm bin/boot.rom
echo "Running.."
if [ "${2}" = '--cli' ];

4
src/debugger.c
View File

@ -93,11 +93,11 @@ int
start(Uxn *u)
{
printf("RESET --------\n");
if(!evaluxn(u, PAGE_VECTORS))
if(!evaluxn(u, PAGE_PROGRAM))
return error("Reset", "Failed");
printstack(&u->wst);
printf("FRAME --------\n");
if(!evaluxn(u, PAGE_VECTORS + 0x08))
if(!evaluxn(u, PAGE_PROGRAM + 0x08))
return error("Frame", "Failed");
printstack(&u->wst);
return 1;

40
src/emulator.c
View File

@ -22,7 +22,6 @@ SDL_AudioDeviceID audio_id;
static SDL_Window *gWindow;
static SDL_Renderer *gRenderer;
static SDL_Texture *gTexture;
static Ppu ppu;
static Device *devsystem, *devscreen, *devmouse, *devkey, *devctrl;
@ -45,10 +44,10 @@ error(char *msg, const char *err)
void
redraw(Uint32 *dst, Uxn *u)
{
draw(&ppu);
drawppu(&ppu);
if(ppu.debugger)
drawdebugger(&ppu, u->wst.dat, u->wst.ptr);
SDL_UpdateTexture(gTexture, NULL, dst, WIDTH * sizeof(Uint32));
SDL_UpdateTexture(gTexture, NULL, dst, ppu.width * sizeof(Uint32));
SDL_RenderClear(gRenderer);
SDL_RenderCopy(gRenderer, gTexture, NULL, NULL);
SDL_RenderPresent(gRenderer);
@ -66,7 +65,7 @@ void
togglezoom(Uxn *u)
{
ppu.zoom = ppu.zoom == 3 ? 1 : ppu.zoom + 1;
SDL_SetWindowSize(gWindow, WIDTH * ppu.zoom, HEIGHT * ppu.zoom);
SDL_SetWindowSize(gWindow, ppu.width * ppu.zoom, ppu.height * ppu.zoom);
redraw(ppu.output, u);
}
@ -74,6 +73,8 @@ void
quit(void)
{
free(ppu.output);
free(ppu.fg);
free(ppu.bg);
SDL_DestroyTexture(gTexture);
gTexture = NULL;
SDL_DestroyRenderer(gRenderer);
@ -87,21 +88,21 @@ quit(void)
int
init(void)
{
if(!initppu(&ppu, 48, 32, 16))
return error("PPU", "Init failure");
if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0)
return error("Init", SDL_GetError());
gWindow = SDL_CreateWindow("Uxn", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, WIDTH * ppu.zoom, HEIGHT * ppu.zoom, SDL_WINDOW_SHOWN);
gWindow = SDL_CreateWindow("Uxn", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, ppu.width * ppu.zoom, ppu.height * ppu.zoom, SDL_WINDOW_SHOWN);
if(gWindow == NULL)
return error("Window", SDL_GetError());
gRenderer = SDL_CreateRenderer(gWindow, -1, 0);
if(gRenderer == NULL)
return error("Renderer", SDL_GetError());
gTexture = SDL_CreateTexture(gRenderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, WIDTH, HEIGHT);
gTexture = SDL_CreateTexture(gRenderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, ppu.width, ppu.height);
if(gTexture == NULL)
return error("Texture", SDL_GetError());
SDL_StartTextInput();
SDL_ShowCursor(SDL_DISABLE);
if(!initppu(&ppu))
return error("PPU", "Init failure");
return 1;
}
@ -110,12 +111,10 @@ domouse(Uxn *u, SDL_Event *event)
{
Uint8 flag = 0x00;
Uint16 addr = devmouse->addr + 2;
Uint16 x = clamp(event->motion.x / ppu.zoom - PAD * 8, 0, HOR * 8 - 1);
Uint16 y = clamp(event->motion.y / ppu.zoom - PAD * 8, 0, VER * 8 - 1);
u->ram.dat[addr + 0] = (x >> 8) & 0xff;
u->ram.dat[addr + 1] = x & 0xff;
u->ram.dat[addr + 2] = (y >> 8) & 0xff;
u->ram.dat[addr + 3] = y & 0xff;
Uint16 x = clamp(event->motion.x / ppu.zoom - ppu.pad, 0, ppu.hor * 8 - 1);
Uint16 y = clamp(event->motion.y / ppu.zoom - ppu.pad, 0, ppu.ver * 8 - 1);
mempoke16(u, addr + 0, x);
mempoke16(u, addr + 2, y);
u->ram.dat[addr + 5] = 0x00;
switch(event->button.button) {
case SDL_BUTTON_LEFT: flag = 0x01; break;
@ -193,9 +192,6 @@ console_poke(Uxn *u, Uint16 ptr, Uint8 b0, Uint8 b1)
case 0x0d: printf("%s\n", &m[(m[ptr + 0x0c] << 8) + b1]); break;
}
fflush(stdout);
(void)m;
(void)ptr;
(void)b0;
return b1;
}
@ -207,7 +203,7 @@ screen_poke(Uxn *u, Uint16 ptr, Uint8 b0, Uint8 b1)
if(b0 == 0x0c) {
Uint16 x = (m[ptr] << 8) + m[ptr + 1];
Uint16 y = (m[ptr + 2] << 8) + m[ptr + 3];
putpixel(b1 >> 4 & 0xf ? ppu.fg : ppu.bg, x, y, b1 & 0xf);
putpixel(&ppu, b1 >> 4 & 0xf ? ppu.fg : ppu.bg, x, y, b1 & 0xf);
ppu.reqdraw = 1;
}
return b1;
@ -230,7 +226,7 @@ sprite_poke(Uxn *u, Uint16 ptr, Uint8 b0, Uint8 b1)
Uint8 ch1 = ((sprite[v] >> (7 - h)) & 0x1);
if(ch1 == 0 && (blend == 0x05 || blend == 0x0a || blend == 0x0f))
continue;
putpixel(layer, x + h, y + v, ch1 ? blend % 4 : blend / 4);
putpixel(&ppu, layer, x + h, y + v, ch1 ? blend % 4 : blend / 4);
}
ppu.reqdraw = 1;
}
@ -393,10 +389,8 @@ main(int argc, char **argv)
portuxn(&u, 0x0f, "---", ppnil);
/* Write screen size to dev/screen */
u.ram.dat[devscreen->addr + 2] = (HOR * 8 >> 8) & 0xff;
u.ram.dat[devscreen->addr + 3] = HOR * 8 & 0xff;
u.ram.dat[devscreen->addr + 4] = (VER * 8 >> 8) & 0xff;
u.ram.dat[devscreen->addr + 5] = VER * 8 & 0xff;
mempoke16(&u, devscreen->addr + 2, ppu.hor * 8);
mempoke16(&u, devscreen->addr + 4, ppu.ver * 8);
start(&u);
quit();

63
src/ppu.c
View File

@ -33,16 +33,21 @@ Uint8 font[][8] = {
void
clear(Ppu *p)
{
int i, sz = HEIGHT * WIDTH;
for(i = 0; i < sz; ++i)
int i, sz = p->height * p->width;
for(i = 0; i < sz; ++i) {
p->output[i] = p->colors[0];
p->fg[i] = 0;
p->bg[i] = 0;
p->fg[sz + i] = 0;
p->bg[sz + i] = 0;
}
}
void
drawpixel(Ppu *p, Uint16 x, Uint16 y, Uint8 color)
{
if(x >= p->x1 && x <= p->x2 && y >= p->x1 && y <= p->y2)
p->output[y * WIDTH + x] = p->colors[color];
p->output[y * p->width + x] = p->colors[color];
}
void
@ -79,20 +84,20 @@ drawdebugger(Ppu *p, Uint8 *stack, Uint8 ptr)
drawicn(p, x + 8, y, font[b & 0xf], 1 + (ptr == i), 0);
}
for(x = 0; x < 32; ++x) {
drawpixel(p, x, HEIGHT / 2, 2);
drawpixel(p, WIDTH - x, HEIGHT / 2, 2);
drawpixel(p, WIDTH / 2, HEIGHT - x, 2);
drawpixel(p, WIDTH / 2, x, 2);
drawpixel(p, WIDTH / 2 - 16 + x, HEIGHT / 2, 2);
drawpixel(p, WIDTH / 2, HEIGHT / 2 - 16 + x, 2);
drawpixel(p, x, p->height / 2, 2);
drawpixel(p, p->width - x, p->height / 2, 2);
drawpixel(p, p->width / 2, p->height - x, 2);
drawpixel(p, p->width / 2, x, 2);
drawpixel(p, p->width / 2 - 16 + x, p->height / 2, 2);
drawpixel(p, p->width / 2, p->height / 2 - 16 + x, 2);
}
}
void
putpixel(Uint8 *layer, Uint16 x, Uint16 y, Uint8 color)
putpixel(Ppu *p, Uint8 *layer, Uint16 x, Uint16 y, Uint8 color)
{
Uint16 row = (y % 8) + ((x / 8 + y / 8 * HOR) * 16), col = 7 - (x % 8);
if(x >= HOR * 8 || y >= VER * 8 || row > RES - 8)
Uint16 row = (y % 8) + ((x / 8 + y / 8 * p->hor) * 16), col = 7 - (x % 8);
if(x >= p->hor * 8 || y >= p->ver * 8 || row > (p->hor * p->ver * 16) - 8)
return;
if(color == 0 || color == 2)
layer[row] &= ~(1UL << col);
@ -119,26 +124,36 @@ loadtheme(Ppu *p, Uint8 *addr)
}
void
draw(Ppu *p)
drawppu(Ppu *p)
{
Uint16 x, y;
for(y = 0; y < VER; ++y)
for(x = 0; x < HOR; ++x) {
Uint16 key = (y * HOR + x) * 16;
drawchr(p, (x + PAD) * 8, (y + PAD) * 8, &p->bg[key], 0);
drawchr(p, (x + PAD) * 8, (y + PAD) * 8, &p->fg[key], 1);
for(y = 0; y < p->ver; ++y)
for(x = 0; x < p->hor; ++x) {
Uint16 key = (y * p->hor + x) * 16;
drawchr(p, x * 8 + p->pad, y * 8 + p->pad, &p->bg[key], 0);
drawchr(p, x * 8 + p->pad, y * 8 + p->pad, &p->fg[key], 1);
}
}
int
initppu(Ppu *p)
initppu(Ppu *p, Uint8 hor, Uint8 ver, Uint8 pad)
{
if(!(p->output = (Uint32 *)malloc(WIDTH * HEIGHT * sizeof(Uint32))))
p->hor = hor;
p->ver = ver;
p->pad = pad;
p->width = (8 * p->hor + p->pad * 2);
p->height = (8 * p->ver + p->pad * 2);
if(!(p->output = malloc(p->width * p->height * sizeof(Uint32))))
return 0;
if(!(p->bg = malloc(p->width * p->height * sizeof(Uint8) * 2)))
return 0;
if(!(p->fg = malloc(p->width * p->height * sizeof(Uint8) * 2)))
return 0;
clear(p);
p->x1 = PAD * 8;
p->x2 = WIDTH - PAD * 8 - 1;
p->y1 = PAD * 8;
p->y2 = HEIGHT - PAD * 8 - 1;
p->x1 = p->pad;
p->x2 = p->width - p->pad - 1;
p->y1 = p->pad;
p->y2 = p->height - p->pad - 1;
return 1;
}

17
src/ppu.h
View File

@ -18,21 +18,14 @@ typedef unsigned short Uint16;
typedef signed short Sint16;
typedef unsigned int Uint32;
#define HOR 48
#define VER 32
#define PAD 2
#define RES (HOR * VER * 16)
#define WIDTH (8 * HOR + 8 * PAD * 2)
#define HEIGHT (8 * VER + 8 * PAD * 2)
typedef struct Ppu {
Uint8 reqdraw, zoom, debugger, bg[RES], fg[RES];
Uint16 x1, y1, x2, y2;
Uint8 reqdraw, zoom, debugger, *bg, *fg;
Uint16 hor, ver, pad, width, height, x1, y1, x2, y2;
Uint32 *output, colors[4];
} Ppu;
int initppu(Ppu *p);
void draw(Ppu *p);
int initppu(Ppu *p, Uint8 hor, Uint8 ver, Uint8 pad);
void drawppu(Ppu *p);
void drawdebugger(Ppu *p, Uint8 *stack, Uint8 ptr);
void loadtheme(Ppu *p, Uint8 *addr);
void putpixel(Uint8 *layer, Uint16 x, Uint16 y, Uint8 color);
void putpixel(Ppu *p, Uint8 *layer, Uint16 x, Uint16 y, Uint8 color);

2
src/uxn.c
View File

@ -178,7 +178,7 @@ loaduxn(Uxn *u, char *filepath)
FILE *f;
if(!(f = fopen(filepath, "rb")))
return haltuxn(u, "Missing input rom.", 0);
fread(u->ram.dat + PAGE_VECTORS, sizeof(u->ram.dat) - PAGE_VECTORS, 1, f);
fread(u->ram.dat + PAGE_PROGRAM, sizeof(u->ram.dat) - PAGE_PROGRAM, 1, f);
printf("Uxn loaded[%s].\n", filepath);
return 1;
}

3
src/uxn.h
View File

@ -17,7 +17,7 @@ typedef unsigned short Uint16;
typedef signed short Sint16;
#define PAGE_DEVICE 0x0100
#define PAGE_VECTORS 0x0200
#define PAGE_PROGRAM 0x0200
typedef struct {
Uint8 ptr, error;
@ -47,3 +47,4 @@ int bootuxn(Uxn *c);
int inituxn(Uxn *u, Uint16 vec);
int evaluxn(Uxn *u, Uint16 vec);
Device *portuxn(Uxn *u, Uint8 id, char *name, Uint8 (*pofn)(Uxn *, Uint16, Uint8, Uint8));
void mempoke16(Uxn *u, Uint16 a, Uint16 b);