Improved generation of software DIPs data in ROM

Instead of emitting symbols for every software DIP defined, generate
a single structure that holds all time, count and enum DIPs.

This makes the compilation of DIP data more predictable and fixes issues
with compilation with optimization enabled.

Add new API functions to access the new DIP structure, and provide
compatibility macros to support the old/deprecated way of accessing
sotware DIPs.

Closes #113

include/ngdevkit/bios-ram.h

@@ -1,6 +1,6 @@
 /*
  * BIOS state variables in memory
- * Copyright (c) 2020 Damien Ciabrini
+ * Copyright (c) 2020-2024 Damien Ciabrini
  * This file is part of ngdevkit
  *
  * ngdevkit is free software: you can redistribute it and/or modify
@@ -20,6 +20,8 @@
 #ifndef __NGDEVKIT_BIOS_RAM_H__
 #define __NGDEVKIT_BIOS_RAM_H__
 
+#include <ngdevkit/types.h>
+
 // BIOS checks
 extern u8 bios_z80rom_check;
 extern u8 bios_slot_check;
@@ -32,6 +34,13 @@ extern u8 bios_sysret_status;
 extern u8 bios_mvs_flag;
 extern u8 bios_country_code;
 
+#define BIOS_TYPE_AES 0
+#define BIOS_TYPE_MVS 1
+
+#define BIOS_COUNTRY_JP 0
+#define BIOS_COUNTRY_US 1
+#define BIOS_COUNTRY_EU 2
+
 // Game DIP switches
 extern u8 bios_game_dip[16];