CPU testing

include/common.h

@@ -11,7 +11,7 @@ typedef uint32_t u32;
 typedef uint64_t u64;
 
 #define BIT(a, n) ((a & (1 << n)) ? 1 : 0)
-#define BIT_SET(a, n, on) {if(on) a |= (1 << n); else a &= !(1 << n);}
+#define BIT_SET(a, n, on) {if(on) a |= (1 << n); else a &= ~(1 << n);}
 #define BETWEEN(a, b, c) ((a >= b) && (a <= c))
 
 void delay(u32 ms);

include/cpu.h

@@ -63,4 +63,6 @@ void cpu_set_ie_register(u8 ie);
 cpu_registers *cpu_get_regs();
 
 u8 cpu_get_int_flags();
-void cpu_set_int_flags(u8 value);
+void cpu_set_int_flags(u8 value);
+
+void inst_to_str(cpu_context *ctx, char *str);

include/dbg.h

@@ -0,0 +1,6 @@
+#pragma once
+
+#include <common.h>
+
+void dbg_update();
+void dbg_print();

include/io.h

@@ -0,0 +1,6 @@
+#pragma once
+
+#include <common.h>
+
+u8 io_read(u16 address);
+void io_write(u16 address, u8 value);