From 43bc7e661ed1f7fc06ed490e27186fce2d570ba2 Mon Sep 17 00:00:00 2001
From: jn <jn@ccc.ac>
Date: Fri, 20 Jan 2023 15:09:16 +0100
Subject: [PATCH] fox32: Add --help option

It's easier to type --help than to remember the options or look at the
source code.
---
 src/main.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/main.c b/src/main.c
index a985702..68878e2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -57,7 +57,17 @@ int main(int argc, char *argv[]) {
 
     size_t disk_id = 0;
     for (int i = 1; i < argc; i++) {
-        if (strcmp(argv[i], "--disk") == 0) {
+        if (strcmp(argv[i], "--help") == 0) {
+            fprintf(stderr,
+                    "Usage: %s [OPTIONS]\n\n"
+                    "Options:\n"
+                    "  --help         Print this message\n"
+                    "  --disk DISK    Specify a disk image to use\n"
+                    "  --rom ROM      Specify a ROM image to use\n"
+                    "  --debug        Enable debug output\n"
+                   , argv[0]);
+            return 0;
+        } else if (strcmp(argv[i], "--disk") == 0) {
             if (i + 1 < argc) {
                 new_disk(argv[i + 1], disk_id++);
                 i++;