From afa45ea82d7ee7cdb68cc262737ffb2c5dd224ba Mon Sep 17 00:00:00 2001
From: Maxwell Jeffress <maxwelljeffress@proton.me>
Date: Thu, 16 Jul 2026 18:41:14 +1000
Subject: [PATCH] Update main.c to accept command line input

---
 src/main.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/main.c b/src/main.c
index 99bedca..c0fb2ec 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2,13 +2,20 @@
 #include "emu.h"
 #include "util.h"
 
-int main() {
+int main(int argc, char** argv) {
+
+    if (argc < 2) {
+        fprintf(stderr, "Usage: %s <ROM to emulate>\n", argv[0]);
+        return 1;
+    }
+
     Emulator* emu = initEmulator(0x00010FFF);
     if (!emu) {
         fprintf(stderr, "emu: error: failed to allocate memory for emulator\n");
         return 1;
     }
 
+    /*
     Instruction program[] = {
         {INST_MVI, {REG_A}, 0, true},
         {INST_MVI, {REG_B}, 123, true},
@@ -18,9 +25,18 @@ int main() {
     };
 
     memoryLoadProgram(emu->mem, program, sizeof(program)/sizeof(program[0]));
+    */
+
+    RomFile* rom = readProgramFromFile(argv[1]);
+    if (rom == NULL) {
+        fprintf(stderr, "Failed to read rom from %s\n", argv[1]);
+        return 1;
+    }
+
+    memoryLoadProgram(emu->mem, rom->instructions, rom->header.numInstructions);
 
     startEmulator(emu);
     freeEmulator(emu);
 
     return 0;
-}
\ No newline at end of file
+}