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nes-clarificatoin to mapper 19 and 210 (theyre actually identical)

This commit is contained in:
zeromus 2012-06-16 16:59:02 +00:00
parent 42c9a78047
commit ace86fa321
1 changed files with 6 additions and 19 deletions
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25
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/NAMCOT_m19_m210.cs
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@ -14,7 +14,6 @@ namespace BizHawk.Emulation.Consoles.Nintendo
//configuration
int prg_bank_mask_8k;
int chr_bank_mask_1k;
bool is210;
//state
IntBuffer prg_banks_8k = new IntBuffer(4);
@ -55,7 +54,6 @@ namespace BizHawk.Emulation.Consoles.Nintendo
case "MAPPER019":
break;
case "MAPPER210":
is210 = true;
break;
//mapper 19:
@ -66,7 +64,6 @@ namespace BizHawk.Emulation.Consoles.Nintendo
//famista '90
//hydelide 3 *this is a good test of more advanced features
Cart.vram_size = 8; //not many test cases of this, but hydelide 3 needs it.
is210 = false;
AssertPrg(128,256); AssertChr(128,256); AssertVram(8); AssertWram(0,8);
break;
@ -74,14 +71,12 @@ namespace BizHawk.Emulation.Consoles.Nintendo
case "NAMCOT-175":
//wagyan land 2
//splatter house
is210 = true;
AssertPrg(128,256); AssertChr(128); AssertVram(0); AssertWram(0);
break;
case "NAMCOT-340":
//family circuit '91
//dream master
//famista '92
is210 = true;
AssertPrg(128,256,512); AssertChr(128,256); AssertVram(0); AssertWram(0,8);
break;
default:
@ -91,10 +86,9 @@ namespace BizHawk.Emulation.Consoles.Nintendo
prg_bank_mask_8k = Cart.prg_size / 8 - 1;
chr_bank_mask_1k = Cart.chr_size / 1 - 1;
SetMirrorType(Cart.pad_h, Cart.pad_v);
prg_banks_8k[3] = (byte)(0xFF & prg_bank_mask_8k);
nt_banks_1k[0] = nt_banks_1k[1] = nt_banks_1k[2] = nt_banks_1k[3] = 0xFF;
nt_banks_1k[0] = nt_banks_1k[2] = 0xFF;
nt_banks_1k[1] = nt_banks_1k[3] = 0xFF;
return true;
}
@ -157,16 +151,16 @@ namespace BizHawk.Emulation.Consoles.Nintendo
case 0x3800: chr_banks_1k[7] = value & chr_bank_mask_1k; break;
case 0x4000: //$C000
if(!is210) nt_banks_1k[0] = value;
nt_banks_1k[0] = value;
break;
case 0x4800: //$C800
if (!is210) nt_banks_1k[1] = value;
nt_banks_1k[1] = value;
break;
case 0x5000: //$D000
if (!is210) nt_banks_1k[2] = value;
nt_banks_1k[2] = value;
break;
case 0x5800: //$D800
if (!is210) nt_banks_1k[3] = value;
nt_banks_1k[3] = value;
break;
case 0x6000: //$E000
@ -203,11 +197,6 @@ namespace BizHawk.Emulation.Consoles.Nintendo
}
else
{
if (is210)
{
base.WritePPU(addr, value);
return;
}
addr -= 0x2000;
int bank_1k = addr >> 10;
int ofs = addr & ((1 << 10) - 1);
@ -247,8 +236,6 @@ namespace BizHawk.Emulation.Consoles.Nintendo
}
else
{
if (is210) return base.ReadPPU(addr);
addr -= 0x2000;
int bank_1k = addr >> 10;
if (bank_1k > 3) return base.ReadPPU(addr); //namco classic 2 tests this at the title screen