From c1a42045e69797987ffa654da8dc76d577ac2629 Mon Sep 17 00:00:00 2001
From: vin <git@vineetk.net>
Date: Fri, 28 Jun 2024 10:28:53 -0400
Subject: [PATCH] fix more bugs

---
 cpu.c | 53 +++++++----------------------------------------------
 1 file changed, 7 insertions(+), 46 deletions(-)

diff --git a/cpu.c b/cpu.c
index 7ae0867..4528ff5 100644
--- a/cpu.c
+++ b/cpu.c
@@ -138,15 +138,12 @@ opcode_arg(enum addressing_mode mode)
 		break;
 	case AM_ABS:
 		val = peek16(arg);
-		printf("$%04X", arg);
 		break;
 	case AM_ABS_X:
 		val = peek16(arg + regs.x);
-		printf("$%04X", arg);
 		break;
 	case AM_ABS_Y:
 		val = peek16(arg + regs.y);
-		printf("$%04X", arg);
 		break;
 	case AM_IND_X:
 		val = peek(peek((arg + regs.x) % 256) + peek((arg + regs.x + 1) % 256) * 256);
@@ -155,7 +152,7 @@ opcode_arg(enum addressing_mode mode)
 		val = peek(peek(arg) + peek((arg + 1) % 256) * 256 + regs.y);
 		break;
 	default:
-		fprintf(stderr, "INVALID ADDRESSING MODE\n");
+		fprintf(stderr, "INVALID ADDRESSING MODE %i\n", mode);
 		abort();
 	}
 
@@ -196,6 +193,9 @@ opcode_mem(enum addressing_mode mode)
 	case AM_ABS_Y:
 		val = arg + regs.y;
 		break;
+	case AM_IND:
+		val = peek16(arg);
+		break;
 	case AM_IND_X:
 		val = peek((arg + regs.x) % 256) + peek((arg + regs.x + 1) % 256) * 256;
 		break;
@@ -754,7 +754,8 @@ tya(void)
 static void
 interpret(void)
 {
-	uint8_t opcode, cycles_;
+	uint8_t opcode;
+	uint32_t cycles_;
 
 	for (;;) {
 		opcode = peek(regs.pc++);
@@ -793,11 +794,6 @@ interpret(void)
 			cycles += 4;
 			printf("ADC");
 			break;
-		case 0x72:
-			adc(opcode_arg(AM_IND));
-			cycles += 5;
-			printf("ADC");
-			break;
 		case 0x61:
 			adc(opcode_arg(AM_IND_X));
 			cycles += 6;
@@ -838,11 +834,6 @@ interpret(void)
 			cycles += 4;
 			printf("AND");
 			break;
-		case 0x32:
-			and(opcode_arg(AM_IND));
-			cycles += 5;
-			printf("AND");
-			break;
 		case 0x21:
 			and(opcode_arg(AM_IND_X));
 			cycles += 6;
@@ -998,11 +989,6 @@ interpret(void)
 			cycles += 4;
 			printf("CMP");
 			break;
-		case 0xd2:
-			cmp(opcode_arg(AM_IND));
-			cycles += 5;
-			printf("CMP");
-			break;
 		case 0xc1:
 			cmp(opcode_arg(AM_IND_X));
 			cycles += 6;
@@ -1103,11 +1089,6 @@ interpret(void)
 			cycles += 4;
 			printf("EOR");
 			break;
-		case 0x52:
-			eor(opcode_arg(AM_IND));
-			cycles += 5;
-			printf("EOR");
-			break;
 		case 0x41:
 			eor(opcode_arg(AM_IND_X));
 			cycles += 6;
@@ -1154,7 +1135,7 @@ interpret(void)
 			printf("JMP");
 			break;
 		case 0x6c:
-			jmp(opcode_arg(AM_IND));
+			jmp(opcode_mem(AM_IND));
 			cycles += 6;
 			printf("JMP");
 			break;
@@ -1198,11 +1179,6 @@ interpret(void)
 			cycles += 4;
 			printf("LDA");
 			break;
-		case 0xb2:
-			lda(opcode_arg(AM_IND));
-			cycles += 5;
-			printf("LDA");
-			break;
 		case 0xa1:
 			lda(opcode_arg(AM_IND_X));
 			cycles += 6;
@@ -1323,11 +1299,6 @@ interpret(void)
 			cycles += 4;
 			printf("ORA");
 			break;
-		case 0x12:
-			ora(opcode_arg(AM_IND));
-			cycles += 5;
-			printf("ORA");
-			break;
 		case 0x01:
 			ora(opcode_arg(AM_IND_X));
 			cycles += 6;
@@ -1448,11 +1419,6 @@ interpret(void)
 			cycles += 4;
 			printf("SBC");
 			break;
-		case 0xf2:
-			sbc(opcode_arg(AM_IND));
-			cycles += 5;
-			printf("SBC");
-			break;
 		case 0xe1:
 			sbc(opcode_arg(AM_IND_X));
 			cycles += 6;
@@ -1503,11 +1469,6 @@ interpret(void)
 			cycles += 6;
 			printf("STA");
 			break;
-		case 0x92:
-			sta(opcode_mem(AM_IND));
-			cycles += 6;
-			printf("STA");
-			break;
 		case 0x81:
 			sta(opcode_mem(AM_IND_X));
 			cycles += 7;