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A7800: Add db entry and fix mirroring

This commit is contained in:
alyosha-tas 2018-10-27 19:51:18 -05:00
parent 738ffe596d
commit 2dc13967ce
2 changed files with 6 additions and 3 deletions
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3
Assets/gamedb/gamedb_a7800.txt
View File

@ -32,7 +32,8 @@ md5:6010a398070dfacb4c0173d75d73c50a Beef Drop A78 NTSC=true;board=0
md5:c534db0a062225b17cfb8ecce0fb9090 Beef Drop A78 NTSC=true;board=0
md5:CE25D34071B2C798ACE4C8792EAE8E84 Beef Drop A78 NTSC=true;board=0
md5:6da5b1b9fa0001e3517f6084ff651b07 Bentley Bear - Crystal Quest A78 NTSC=true;board=2;Pokey=true
md5:4D0B5BF95E4CB366990DBAEECB7F706D Bentley Bear - Crystal Quest A78 NTSC=true;board=2;Pokey=true
md5:4D0B5BF95E4CB366990DBAEECB7F706D Bentley Bear - Crystal Quest A78 NTSC=true;board=2;Pokey=true
md5:34483432B92F565F4CED82A141119164 Bentley Bear - Crystal Quest A78 NTSC=true;board=2;Pokey=true
md5:5a09946e57dbe30408a8f253a28d07db Centipede A78 NTSC=true;board=0
md5:38c056a48472d9a9e16ebda5ed91dae7 Centipede A78 PAL=true;board=0
md5:93e4387864b014c155d7c17877990d1e Choplifter! A78 NTSC=true;board=0

6
BizHawk.Emulation.Cores/Consoles/Atari/A7800Hawk/MemoryMap.cs
View File

@ -75,7 +75,8 @@ namespace BizHawk.Emulation.Cores.Atari.A7800Hawk
}
else if ((addr >= 0x2800) && (addr < 0x3000))
{
return RAM[(addr & 0x7FF) + 0x800];
// this mirror evidently does not exist on hardware despite being in the documentation
return 0xFF;// RAM[(addr & 0x7FF) + 0x800];
}
else if ((addr >= 0x3000) && (addr < 0x4000))
{
@ -167,7 +168,8 @@ namespace BizHawk.Emulation.Cores.Atari.A7800Hawk
}
else if ((addr >= 0x2800) && (addr < 0x3000))
{
RAM[(addr & 0x7FF) + 0x800] = value;
// this mirror evidently does not exist on hardware despite being in the documentation
//RAM[(addr & 0x7FF) + 0x800] = value;
}
else if ((addr >= 0x3000) && (addr < 0x4000))
{