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NES mappers - remove documentation comments in favor of the nesdev wiki link

This commit is contained in:
adelikat 2020-03-19 08:24:05 -05:00
parent f022954554
commit d60a00d682
2 changed files with 20 additions and 117 deletions
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59
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Mapper193.cs
View File

@ -2,55 +2,14 @@
namespace BizHawk.Emulation.Cores.Nintendo.NES namespace BizHawk.Emulation.Cores.Nintendo.NES
{ {
// http://wiki.nesdev.com/w/index.php/INES_Mapper_193
public sealed class Mapper193 : NES.NESBoardBase public sealed class Mapper193 : NES.NESBoardBase
{ {
/* private int prg_bank_mask_8k;
* ======================== private byte[] prg_banks_8k = new byte[4];
= Mapper 193 =
========================
private int chr_bank_mask_2k;
Example Game: private byte[] chr_banks_2k = new byte[4];
--------------------------
Fighting Hero (Unl)
Registers:
---------------------------
Regs at $6000-7FFF = no SRAM
Range,Mask: $6000-7FFF, $6003
$6000: CHR Reg 0
$6001: CHR Reg 1
$6002: CHR Reg 2
$6003: PRG Reg
CHR Setup:
---------------------------
$0000 $0400 $0800 $0C00 $1000 $1400 $1800 $1C00
+-------------------------------+---------------+---------------+
| <<$6000>> | <$6001> | <$6002> |
+-------------------------------+---------------+---------------+
PRG Setup:
---------------------------
$8000 $A000 $C000 $E000
+-------+-------+-------+-------+
| $6003 | { -3} | { -2} | { -1} |
+-------+-------+-------+-------+
*/
int prg_bank_mask_8k;
byte[] prg_banks_8k = new byte[4];
int chr_bank_mask_2k;
byte[] chr_banks_2k = new byte[4];
public override bool Configure(NES.EDetectionOrigin origin) public override bool Configure(NES.EDetectionOrigin origin)
{ {
@ -76,7 +35,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
return true; return true;
} }
void SyncMap() private void SyncMap()
{ {
ApplyMemoryMapMask(prg_bank_mask_8k, prg_banks_8k); ApplyMemoryMapMask(prg_bank_mask_8k, prg_banks_8k);
ApplyMemoryMapMask(chr_bank_mask_2k, chr_banks_2k); ApplyMemoryMapMask(chr_bank_mask_2k, chr_banks_2k);
@ -118,10 +77,8 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
addr = ApplyMemoryMap(11, chr_banks_2k, addr); addr = ApplyMemoryMap(11, chr_banks_2k, addr);
return base.ReadPPUChr(addr); return base.ReadPPUChr(addr);
} }
else
{ return base.ReadPPU(addr);
return base.ReadPPU(addr);
}
} }
public override byte ReadPRG(int addr) public override byte ReadPRG(int addr)

78
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Taito_X1_017.cs
View File

@ -3,68 +3,14 @@ using BizHawk.Common.NumberExtensions;
namespace BizHawk.Emulation.Cores.Nintendo.NES namespace BizHawk.Emulation.Cores.Nintendo.NES
{ {
// http://wiki.nesdev.com/w/index.php/INES_Mapper_082
public sealed class Taito_X1_017 : NES.NESBoardBase public sealed class Taito_X1_017 : NES.NESBoardBase
{ {
/* private int prg_bank_mask, chr_bank_mask;
ines Mapper 82 private byte[] prg_regs_8k = new byte[4];
http://wiki.nesdev.com/w/index.php/INES_Mapper_082 private byte[] chr_regs_1k = new byte[8];
private bool ChrMode;
* Example Games: private bool[] wramenable = new bool[3];
--------------------------
SD Keiji - Blader
Notes:
---------------------------
Regs appear at $7EFx, I'm unsure whether or not PRG-RAM can exist at $6000-7FFF
Registers:
---------------------------
$7EF0-7EF5: CHR Regs
$7EF6: [.... ..CM] CHR Mode/Mirroring
C = CHR Mode select
M = Mirroring:
0 = Horz
1 = Vert
$7EFA: [PPPP PP..] PRG Reg 0 (8k @ $8000)
$7EFB: [PPPP PP..] PRG Reg 1 (8k @ $A000)
$7EFC: [PPPP PP..] PRG Reg 2 (8k @ $C000)
CHR Setup:
---------------------------
$0000 $0400 $0800 $0C00 $1000 $1400 $1800 $1C00
+---------------+---------------+-------+-------+-------+-------+
CHR Mode 0: | <$7EF0> | <$7EF1> | $7EF2 | $7EF3 | $7EF4 | $7EF5 |
+---------------+---------------+---------------+---------------+
CHR Mode 1: | $7EF2 | $7EF3 | $7EF4 | $7EF5 | <$7EF0> | <$7EF1> |
+-------+-------+-------+-------+---------------+---------------+
PRG Setup:
---------------------------
$8000 $A000 $C000 $E000
+-------+-------+-------+-------+
| $7EFA | $7EFB | $7EFC | { -1} |
+-------+-------+-------+-------+
Note: remember that the low 2 bits are not used (right-shift written values by 2)
*/
// config
int prg_bank_mask, chr_bank_mask;
// state
byte[] prg_regs_8k = new byte[4];
byte[] chr_regs_1k = new byte[8];
bool ChrMode;
bool[] wramenable = new bool[3];
public override void SyncState(Serializer ser) public override void SyncState(Serializer ser)
{ {
@ -102,9 +48,11 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
public override byte ReadWRAM(int addr) public override byte ReadWRAM(int addr)
{ {
if (addr < 0x1400 && wramenable[addr >> 11]) if (addr < 0x1400 && wramenable[addr >> 11])
{
return WRAM[addr]; return WRAM[addr];
else }
return NES.DB;
return NES.DB;
} }
public override void WriteWRAM(int addr, byte value) public override void WriteWRAM(int addr, byte value)
@ -187,10 +135,8 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
addr = (bank_1k << 10) | ofs; addr = (bank_1k << 10) | ofs;
return VROM[addr]; return VROM[addr];
} }
else
{ return base.ReadPPU(addr);
return base.ReadPPU(addr);
}
} }
} }
} }