From 53c5b6ab9c931051aff8a008e08cbf95095f8aa1 Mon Sep 17 00:00:00 2001
From: Alex <alexftaber@gmail.com>
Date: Tue, 30 Oct 2018 22:39:12 -0400
Subject: [PATCH] Fix some weird bugs caused by the main loop running once
 every opcode

---
 main.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/main.c b/main.c
index c6b0f45..971b8ed 100644
--- a/main.c
+++ b/main.c
@@ -71,7 +71,6 @@ int main(int argc, char **argv) {
 
 	int delay = 0;
 	int sound = 0;
-	int frame = 0;
 	int press = 0;
 	int wait = 0;
 	int store = 0;
@@ -79,14 +78,10 @@ int main(int argc, char **argv) {
 	while (1) {
 		if (DEBUG) printf("0x%x ", state.program_counter);
 	
-		if (frame == 10)
-		{
-			frame = 0;
-			if (delay > 0) --delay;
-			if (sound > 0) --sound;
-			memset(state.input, 0, 0x10);
-			press = 0;
-		}
+		if (delay > 0) --delay;
+		if (sound > 0) --sound;
+		memset(state.input, 0, 0x10);
+		press = 0;
 
 		// opcodes are 16 bits
 
@@ -117,6 +112,10 @@ int main(int argc, char **argv) {
 			wait = 0;
 		}
 
+		int ops = 0;
+
+		loop:;
+
 		word opcode = (state.memory[state.program_counter++] << 8) | (state.memory[state.program_counter++]);
 
 		switch (opcode & 0xF000) 
@@ -403,6 +402,12 @@ int main(int argc, char **argv) {
 		}
 		if (DEBUG) printf("\n");
 
+		if (ops < 10)
+		{
+			ops++;
+			goto loop;
+		}
+
 		for (int x = 0; x < 64; ++x) {
 			for (int y = 0; y < 32; ++y)
 			{
@@ -422,8 +427,7 @@ int main(int argc, char **argv) {
 
 		SDL_RenderPresent(renderer);
 
-		SDL_Delay(1);
-		++frame;
+		SDL_Delay(16);
 		// SDL_DestroyWindow(window);
 		// SDL_Quit();
 	}