build ''system''; decode metaprog; disasm

1 files changed, 15 insertions, 8 deletions

diff --git a/main.c b/sources/main.c
index c082914..56630df 100644
--- a/main.c
+++ b/sources/main.c
@@ -281,13 +281,11 @@ void _c8_loop(chip8* c8, bool disasm, u16 from, u16 len)
     if(disasm) c8->pc = pc;
 }
 
-void c8_disam(chip8* c8, u16 from, u16 len) { _c8_loop(c8, true, from, len); }
-void c8_loop(chip8* c8) { _c8_loop(c8, false, 0, 0); }
-
 
 int main(int argc, char** argv)
 {
-    FILE* f = NULL;
+    u64   sz = 0;
+    FILE*  f = NULL;
     chip8 c8 = {0};
 
     srand(time(NULL));
@@ -296,7 +294,7 @@ int main(int argc, char** argv)
 
     if(argc > 1)
     {
-        u64 sz, got = 0;
+        u64 got = 0;
 
         f = fopen(argv[1], "r");
         if(!f) return 1;
@@ -331,13 +329,22 @@ int main(int argc, char** argv)
 
         c8.RAM[C8_RESET_VECTOR + iota] = 0x12;
         c8.RAM[C8_RESET_VECTOR + iota] = 0x04;
+
+        sz = iota;
     }
 
     printf("Disasm:\n");
-    c8_disam(&c8, C8_RESET_VECTOR, 32);
+    {
+        u64 i;
+        char buf[512] = {0};
 
-    printf("\nExec:\n");
-    c8_loop(&c8);
+        for(i = 0; i < sz; i += 2)
+        {
+            u16 pc = C8_RESET_VECTOR + i;
+            c8_disasm(c8.RAM, pc, buf);
+            printf("%04X:   %s\n", pc, buf);
+        }
+    }
 
     return 0;
 }