Detect type of BIOS

include/PSX/System/syscalls.hpp

@@ -17,6 +17,34 @@ R31 	ra	    Return address (set by function call)
 */
 
 namespace JabyEngine {
+    namespace BIOS {
+        struct Version {
+            struct {
+                uint8_t  day;
+                uint8_t  month;
+                uint16_t year;
+            } date;
+            const char* kernel_maker;
+            const char* version_str;
+            const char* gui_version;
+            const char* copyright;
+        };
+
+        enum struct Type {
+            Devboard,
+            PS1,
+            PS2,
+            PS3,
+            PSCompatible, // internal usage only
+            No$psx,
+            XEBRA,
+            Unkown
+        };
+
+        Version get_bios_version();
+        extern Type type;
+    }
+
     namespace SysCall {
         static constexpr const uint32_t Table_A = 0xA0;
         static constexpr const uint32_t Table_B = 0xB0;
@@ -55,20 +83,6 @@ namespace JabyEngine {
         };
         #pragma pack(pop)
 
-        struct BIOSVersion {
-            struct {
-                uint8_t  day;
-                uint8_t  month;
-                uint16_t year;
-            } date;
-            const char* kernel_maker;
-            const char* version_str;
-            const char* gui_version;
-            const char* copyright;
-        };
-
-        BIOSVersion get_bios_version();
-
         #define __syscall_function_cast(table, ...) reinterpret_cast<__VA_ARGS__>(table)
 
         static __always_inline void* memcpy(void *dst, const void *src, size_t len) {