chip8

commit a7d8e25db355dbcbbaba78363f52d361ca804fd4
parent 6b5851ff4788abff85181dfd948753ddc6c85247
Author: Christos Margiolis <christos@margiolis.net>
Date:   Tue, 19 May 2020 14:40:40 +0300

removed some printfs

Diffstat:
M
bin/chip8
 | 
0

M
obj/chip8.o
 | 
0

M
obj/main.o
 | 
0

A
roms/15PUZZLE
 | 
0

A
roms/BLINKY
 | 
0

A
roms/BLITZ
 | 
0

A
roms/BRIX
 | 
0

A
roms/CONNECT4
 | 
0

A
roms/GUESS
 | 
0

A
roms/HIDDEN
 | 
0

A
roms/INVADERS
 | 
0

A
roms/KALEID
 | 
0

A
roms/MAZE
 | 
0

A
roms/MERLIN
 | 
0

A
roms/MISSILE
 | 
0

A
roms/PONG
 | 
0

A
roms/PONG2
 | 
0

A
roms/PUZZLE
 | 
0

A
roms/SYZYGY
 | 
0

A
roms/TANK
 | 
0

A
roms/TETRIS
 | 
0

A
roms/TICTAC
 | 
0

A
roms/UFO
 | 
0

A
roms/VBRIX
 | 
0

A
roms/VERS
 | 
0

A
roms/WIPEOFF
 | 
0

M
src/chip8.c
 | 
8
--------
M
src/main.c
 | 
13
++++++++++---

28 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/bin/chip8 b/bin/chip8
Binary files differ.
diff --git a/obj/chip8.o b/obj/chip8.o
Binary files differ.
diff --git a/obj/main.o b/obj/main.o
Binary files differ.
diff --git a/roms/15PUZZLE b/roms/15PUZZLE
Binary files differ.
diff --git a/roms/BLINKY b/roms/BLINKY
Binary files differ.
diff --git a/roms/BLITZ b/roms/BLITZ
Binary files differ.
diff --git a/roms/BRIX b/roms/BRIX
Binary files differ.
diff --git a/roms/CONNECT4 b/roms/CONNECT4
Binary files differ.
diff --git a/roms/GUESS b/roms/GUESS
Binary files differ.
diff --git a/roms/HIDDEN b/roms/HIDDEN
Binary files differ.
diff --git a/roms/INVADERS b/roms/INVADERS
Binary files differ.
diff --git a/roms/KALEID b/roms/KALEID
Binary files differ.
diff --git a/roms/MAZE b/roms/MAZE
Binary files differ.
diff --git a/roms/MERLIN b/roms/MERLIN
Binary files differ.
diff --git a/roms/MISSILE b/roms/MISSILE
Binary files differ.
diff --git a/roms/PONG b/roms/PONG
Binary files differ.
diff --git a/roms/PONG2 b/roms/PONG2
Binary files differ.
diff --git a/roms/PUZZLE b/roms/PUZZLE
Binary files differ.
diff --git a/roms/SYZYGY b/roms/SYZYGY
Binary files differ.
diff --git a/roms/TANK b/roms/TANK
Binary files differ.
diff --git a/roms/TETRIS b/roms/TETRIS
Binary files differ.
diff --git a/roms/TICTAC b/roms/TICTAC
Binary files differ.
diff --git a/roms/UFO b/roms/UFO
Binary files differ.
diff --git a/roms/VBRIX b/roms/VBRIX
Binary files differ.
diff --git a/roms/VERS b/roms/VERS
Binary files differ.
diff --git a/roms/WIPEOFF b/roms/WIPEOFF
Binary files differ.
diff --git a/src/chip8.c b/src/chip8.c
@@ -220,22 +220,14 @@ decode(Chip8 *chip8)
 			int yl, xl;
 			for (yl = 0; yl < h; yl++)
 			{
-				printf("Decoding: %x\n", opcode);
 				pixel = memory[I + yl];
 				for (xl = 0; xl < 8; xl++)
 				{
-					printf("Decoding: %x\n", opcode);
-					printf("VX: %x\n", VX);
-					printf("VY: %x\n", VY);
-					printf("Pixel: %d\n", pixel);
-					printf("yline: %d\txline: %d\n", yl, xl);
-
 					if ((pixel & (0x80 >> xl)) != 0)
 					{
 						if (gfx[VX + xl + ((VY + yl) * 64)] == 1)
 							V[0xF] = 1;
 						gfx[VX + xl + ((VY + yl) * 64)] ^= 1;
-						printf("gfx: %d\n", gfx[VX + xl + ((VY + yl) * 64)]);
 					}
 				}
 			}
diff --git a/src/main.c b/src/main.c
@@ -2,7 +2,7 @@
 #include <SDL2/SDL.h>
 #include <unistd.h>
 
-static uint8_t keymap[16] = {
+static const uint8_t keymap[16] = {
     SDLK_1, SDLK_2,
     SDLK_3, SDLK_4,
     SDLK_q, SDLK_w,
@@ -21,6 +21,12 @@ main(int argc, char **argv)
 	uint32_t pixels[2048];
 	srand(time(NULL));
 
+	if (argc != 2)
+	{
+		fprintf(stderr, "Usage: ./chip8 [ROM]\n");
+		return -1;
+	}
+
 	if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
 	{
 		fprintf(stderr, "Cannot initialize SDL. Exiting. . .\n");
@@ -32,7 +38,8 @@ main(int argc, char **argv)
 							SDL_WINDOW_SHOWN);
 	if (win == NULL)
 	{
-		fprintf(stderr, "Cannot create SDL window. Exiting. . .\n%s\n", SDL_GetError());
+		fprintf(stderr, "Cannot create SDL window. Exiting. . .\n%s\n",
+				SDL_GetError());
 		return -1;
 	}
 
@@ -44,7 +51,7 @@ main(int argc, char **argv)
 
 	Chip8 chip8;
 	chip8_init(&chip8);
-	if (load(&chip8, argv[1]) == -1) return -1;
+	if (load(&chip8, argv[1]) < 0) return -1;
 
 	for (;;)
 	{