From 340c0f0c561e08e16b34d2a9d37615741c12cb21 Mon Sep 17 00:00:00 2001
From: ayabusa <lebgpub@gmail.com>
Date: Sat, 10 Jan 2026 19:01:54 +0100
Subject: [PATCH] basic stuff working

---
 Makefile        |   2 +-
 src/main.c      |   6 +++++-
 src/processor.c |  16 ++++++++++++++++
 src/processor.h |   4 ++++
 test.ch8        | Bin 0 -> 16 bytes
 5 files changed, 26 insertions(+), 2 deletions(-)
 create mode 100644 test.ch8

diff --git a/Makefile b/Makefile
index f3947a6..c393e7b 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ flags = -g -Wall -Wextra -fsanitize=address
 src = src/*.c
 inc = src/
 out = build/chipy8
-rom = game.ch8
+rom = test.ch8
 
 all: clean comp run
 
diff --git a/src/main.c b/src/main.c
index 36eff79..2620ad0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -44,8 +44,12 @@ int main(int argc, char * argv[]){
 	}
 	int running = 1;
 	srand( time( NULL ) );
+	char placeholder;
 	while (running){
-		;
+	    execute_instruction(&context);
+		print_ctx(&context);
+		printf("Press enter to resume");
+		scanf("%c", &placeholder);
 	}
 	free(context.RAM);
 	return 0;
diff --git a/src/processor.c b/src/processor.c
index 3a76ab5..980c53e 100644
--- a/src/processor.c
+++ b/src/processor.c
@@ -159,6 +159,22 @@ void ins_LD_V_I(ch8_ctx * ctx, uint8_t x){
         ctx->REGS[i] = ctx->RAM[ctx->I + i];
 }
 
+void print_ctx(ch8_ctx * ctx){
+    printf("PC: %hu \nSP: %hhu \nDT: %hhu \nST: %hhu \nRegisters:\nI: %hu\n", ctx->PC, ctx->SP, ctx->DT, ctx->ST, ctx->I);
+    for(uint8_t x=0; x<=0xF; x++){
+        printf("V%hhu: %hhu\n", x, ctx->REGS[x]);
+    }
+    printf("Stack:\n");
+    int started = 0;
+    for(int s=15; s>=0; s--){
+        if(!started && ctx->STACK[s]==0);
+        else{
+            started=1;
+            printf("0x%x: 0x%hx\n", s, ctx->STACK[s]);
+        }
+    }
+}
+
 void execute_instruction(ch8_ctx * ctx){
 	// The two instruction bytes
 	uint8_t b1=*(ctx->RAM + ctx->PC), b2=*(ctx->RAM + ctx->PC + 1);
diff --git a/src/processor.h b/src/processor.h
index 9243eca..d214f58 100644
--- a/src/processor.h
+++ b/src/processor.h
@@ -25,4 +25,8 @@ uint8_t SP;
 uint16_t STACK[16];
 } ch8_ctx;
 
+void execute_instruction(ch8_ctx * ctx);
+
+void print_ctx(ch8_ctx * ctx);
+
 #endif
diff --git a/test.ch8 b/test.ch8
new file mode 100644
index 0000000000000000000000000000000000000000..e139d411130900c0812af45a0fe3326029a18941
GIT binary patch
literal 16
XcmYdbNMxQMAjDI^D8!PiCBy>&8dd_e

literal 0
HcmV?d00001

-- 
2.43.0