From bc9ae4e46c5d655025c00e8836c42ba09b88efd6 Mon Sep 17 00:00:00 2001 From: David Korth Date: Sun, 19 Jul 2020 13:49:18 -0400 Subject: [PATCH] console: CGB doesn't require licensee code to be 0x33. Various unlicensed and homebrew titles don't have the licensee code set correctly, but they *do* function in CGB mode. --- magic/Magdir/console | 3 +++ 1 file changed, 3 insertions(+) diff --git a/magic/Magdir/console b/magic/Magdir/console index 39e1e0e3..ae275ce3 100644 --- a/magic/Magdir/console +++ b/magic/Magdir/console @@ -125,6 +125,7 @@ >0x14c byte x (Rev.%02u) # Machine type. (SGB, CGB, SGB+CGB) +# Old licensee code 0x33 is required for SGB, but not CGB. >0x14b byte 0x33 >>0x146 byte 0x03 >>>0x143 byte&0x80 0x80 [SGB+CGB] @@ -133,6 +134,8 @@ >>>0x143 byte&0xC0 0x80 [CGB] >>>0x143 byte&0xC0 0xC0 [CGB ONLY] >0x14b byte !0x33 +>>0x143 byte&0xC0 0x80 [CGB] +>>0x143 byte&0xC0 0xC0 [CGB ONLY] # Mapper. >0x147 byte 0x00 [ROM ONLY] -- 2.27.0