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Version 2.4 - Major optimization of bank switching allowing the more …
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…stubborn games to run at full speed.
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@wavemotion-dave
wavemotion-dave committed Jan 8, 2021
1 parent effed71 commit a4b6af7
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Binary file modified A7800DS.nds
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2 changes: 1 addition & 1 deletion Makefile
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@@ -1,4 +1,4 @@
VERSION=2.3
VERSION=2.4
TARGNAME=A7800DS

#---------------------------------------------------------------------------------
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Binary file modified arm9/gfx/pdev_bg0.png
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2 changes: 1 addition & 1 deletion arm9/source/emu/Cartridge.c
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Expand Up @@ -94,7 +94,7 @@ inline static void cartridge_WriteBank(word address, byte bank)
last_bank = bank;
uint offset = cartridge_GetBank(bank) * 16384;
if(offset < cartridge_size) {
memory_WriteROM(address, 16384, cartridge_buffer + offset);
memory_WriteROMFast(address, 16384, cartridge_buffer + offset);
cartridge_bank = bank;
}
}
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2 changes: 1 addition & 1 deletion arm9/source/emu/Database.c
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Expand Up @@ -146,7 +146,7 @@ Database_Entry game_list[] = {
{"5330bfe428a6b601b7e76c2cfc4cd049", CT_SUPROM, POKEY_NONE, JOY, JOY, DIFF_A, DIFF_A, PAL, STEAL_CYCLE, USES_WSYNC, HSC_NO, 0, 22, 256, 220}, // title=Motor Psycho
{"fc0ea52a9fac557251b65ee680d951e5", CT_NORMAL, POKEY_NONE, JOY, JOY, DIFF_A, DIFF_A, NTSC, STEAL_CYCLE, USES_WSYNC, HSC_YES, 0, 22, 256, 220}, // title=Ms. Pac-Man
{"56469e8c5ff8983c6cb8dadc64eb0363", CT_NORMAL, POKEY_NONE, JOY, JOY, DIFF_A, DIFF_A, PAL, STEAL_CYCLE, USES_WSYNC, HSC_NO, 0, 22, 256, 220}, // title=Ms. Pac-Man
{"220121f771fc4b98cef97dc040e8d378", CT_SUPROM, POKEY_NONE, JOY, JOY, DIFF_A, DIFF_A, NTSC, STEAL_CYCLE, USES_WSYNC, HSC_NO, 0, 22, 256, 220}, // title=Ninja Golf
{"220121f771fc4b98cef97dc040e8d378", CT_SUPROM, POKEY_NONE, JOY, JOY, DIFF_A, DIFF_A, NTSC, STEAL_CYCLE, USES_WSYNC, HSC_NO, 10, 22, 270, 220}, // title=Ninja Golf
{"ea0c859aa54fe5eaf4c1f327fab06221", CT_SUPROM, POKEY_NONE, JOY, JOY, DIFF_A, DIFF_A, PAL, STEAL_CYCLE, USES_WSYNC, HSC_NO, 0, 22, 256, 220}, // title=Ninja Golf
{"74569571a208f8b0b1ccfb22d7c914e1", CT_NORMAL, POKEY_NONE, JOY, JOY, DIFF_A, DIFF_A, NTSC, STEAL_CYCLE, USES_WSYNC, HSC_NO, 0, 12, 256, 220}, // title=One On One
{"8dba0425f0262e5704581d8757a1a6e3", CT_NORMAL, POKEY_NONE, JOY, JOY, DIFF_A, DIFF_A, PAL, STEAL_CYCLE, USES_WSYNC, HSC_NO, 0, 12, 256, 220}, // title=One On One
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22 changes: 19 additions & 3 deletions arm9/source/emu/Memory.c
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Expand Up @@ -229,12 +229,28 @@ ITCM_CODE void memory_Write(word address, byte data)
// ----------------------------------------------------------------------------
void memory_WriteROM(word address, word size, const byte* data)
{
if((address + size) <= MEMORY_SIZE && data != NULL)
u32* ramPtr = (u32*)&memory_ram[address];
u32* romPtr = (u32*)&memory_rom[address];
u32* dataPtr = (u32*)data;
for (word i=0; i<(size>>2); i++)
{
memcpy(&memory_ram[address], data, size);
memset(&memory_rom[address], 0x01, size);
*ramPtr++ = *dataPtr++;
*romPtr++ = 0x01010101;
}
}
// ----------------------------------------------------------------------------
// WriteROM
// ----------------------------------------------------------------------------
void memory_WriteROMFast(word address, word size, const byte* data)
{
u32* ramPtr = (u32*)&memory_ram[address];
u32* dataPtr = (u32*)data;
for (word i=0; i<(size>>2); i++)
{
*ramPtr++ = *dataPtr++;
}
}


// ----------------------------------------------------------------------------
// ClearROM
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1 change: 1 addition & 0 deletions arm9/source/emu/Memory.h
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Expand Up @@ -42,6 +42,7 @@ extern ITCM_CODE void memory_Write(word address, byte data);
//ALEK extern void memory_Write(byte data,word address);

extern void memory_WriteROM(word address, word size, const byte* data);
extern void memory_WriteROMFast(word address, word size, const byte* data);
extern void memory_WriteROM32(word address, word size, const byte* data);
extern void memory_ClearROM(word address, word size);
extern byte memory_ram[MEMORY_SIZE];
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27 changes: 15 additions & 12 deletions readme.txt
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Expand Up @@ -33,6 +33,9 @@ Philosophy :
--------------------------------------------------------------------------------
History :
--------------------------------------------------------------------------------
V2.4 : 8-Jan-2021 by wavemotion-dave
* Improvement in bank switching allowing most games to run 60FPS.

V2.3 : 6-Jan-2021 by wavemotion-dave
* Fixed large cart support so 512kb games run fine.
* Fixed voice in Frenzy/Berzerk.
Expand Down Expand Up @@ -159,7 +162,7 @@ Compatibility Table
GAME MD5SUM HSC FPS NOTES
========================================================================================================================
Ace Of Aces 0be996d25144966d5541c9eb4919b289 NO 60 Minor graphical glitches. Very playable.
Alien Brigade 877dcc97a775ed55081864b2dbf5f1e2 NO 46 A bit slow but playable
Alien Brigade 877dcc97a775ed55081864b2dbf5f1e2 NO 52 A bit slow but veryplayable
Arkanoid Demo 212ee2a6e66d8bb7fbf26f343cc8dc19 NO 60 Playable though paddles would be nice.
Asteroids 07342c78619ba6ffcc61c10e907e3b50 YES 60 Near perfect
Asteroids Deluxe a65f79ad4a0bbdecd59d5f7eb3623fd7 YES 60 Near perfect
Expand All @@ -173,7 +176,7 @@ Beef Drop (Final) 78b1061d651ef806becac1dd3fda29a0 YES 60 Near perfe
BonQ (Final) 9fa7743a016c9b7015ee1d386326f88e YES 60 Graphical glitches on title screen. Play is near perfect.
Centipede 5a09946e57dbe30408a8f253a28d07db YES 60 Near perfect
Choplifter 93e4387864b014c155d7c17877990d1e NO 60 Near perfect
Commando 2e8e28f6ad8b9b9267d518d880c73ebb NO 50 Just on the edge of being playable...
Commando 2e8e28f6ad8b9b9267d518d880c73ebb NO 60 Near perfect
Crack'ed db691469128d9a4217ec7e315930b646 NO 60 Would be better with lightgun support.
Crossbow a94e4560b6ad053a1c24e096f1262ebf NO 60 Would be better with lightgun support.
Dark Chambers 179b76ff729d4849b8f66a502398acae NO 60 Near perfect
Expand All @@ -182,7 +185,7 @@ Dig Dug 731879ea82fc0ca245e39e036fe293e6 YES 60 Near perfe
Donkey Kong 19f1ee292a23636bd57d408b62de79c7 NO 60 Near perfect
Donkey Kong Jr 5e332fbfc1e0fc74223d2e73271ce650 NO 60 Near perfect
Donkey Kong XM Demo c3107d3e3e17d67e3a11d47a5946a4f3 NO 60 Near perfect
Double Dragon 543484c00ba233736bcaba2da20eeea9 NO 40 Glitch city. Mostly unplayable.
Double Dragon 543484c00ba233736bcaba2da20eeea9 NO 60 Glitchy top graphics... but playable.
Drakers Quest I fab1290f9a4c4f2b4d831c8a57f969f5 NO 60 Near perfect
Drakers Quest II a9f29004412621f20ad9f5c51cc11486 NO 60 Near perfect
Dungeon Stalker b3143adbbb7d7d189e918e5b29d55a72 YES 60 Near perfect
Expand All @@ -195,7 +198,7 @@ Frenzy (with Berzerk) e7d89669a7f92ec2cc99d9663a28671c YES 60 Near perfe
Froggie 6053233cb59c0b4ca633623fd76c4576 YES 60 Near perfect
Galaga fb8d803b328b2e442548f7799cfa9a4a YES 60 Near perfect
Hat Trick fd9e78e201b6baafddfd3e1fbfe6ba31 NO 60 Near perfect
Ikari Warriors c3672482ca93f70eafd9134b936c3feb NO 55 A bit slow but playable.
Ikari Warriors c3672482ca93f70eafd9134b936c3feb NO 60 Near perfect
Impossible Mission baebc9246c087e893dfa489632157180 NO 60 Near perfect
Jinks 045fd12050b7f2b842d5970f2414e912 NO 60 Near perfect
Joust f18b3b897a25ab3885b43b4bd141b396 YES 60 Near perfect
Expand All @@ -205,30 +208,30 @@ Karateka c3a5a8692a423d43d9d28dd5b7d109d9 NO 60 Minor glit
Kung Fu Master f57d0af323d4e173fb49ed447f0563d7 NO 60 Near perfect
Mario Bros. 431ca060201ee1f9eb49d44962874049 NO 60 Near perfect
Meteor Shower c3f6201d6a9388e860328c963a3301cc YES 60 Near perfect - my favorite homebrew!
Midnight Mutants bc1e905db1008493a9632aa83ab4682b NO 51 A bit too slow to be playable. But close.
Missing in Action 017066f522908081ec3ee624f5e4a8aa NO 55 A bit too slow to be playable. But close.
Midnight Mutants bc1e905db1008493a9632aa83ab4682b NO 60 Near perfect
Missing in Action 017066f522908081ec3ee624f5e4a8aa NO 60 Near perfect
Moon Cresta 9ff38ea62004201d870caa8bd9463525 YES 60 Near perfect
Ms. Pac-Man fc0ea52a9fac557251b65ee680d951e5 YES 60 Near perfect
Ninja Golf 220121f771fc4b98cef97dc040e8d378 NO 40 Too slow. Minor glitches.
Ninja Golf 220121f771fc4b98cef97dc040e8d378 NO 60 Near perfect
One On One 74569571a208f8b0b1ccfb22d7c914e1 NO 60 Near perfect
Pac-Man Collection 5013b69cb05b21a1194ce48517df7bfc YES 60 Near perfect
Pac-Man Collection 40th 044657294450c869c45e7ef61f4870de YES 60 Near perfect
Planet Smashers 33aea1e2b6634a1dec8c7006d9afda22 NO 60 Near perfect
Pole Position II 584582bb09ee8122e7fc09dc7d1ed813 NO 60 Font hard to read due to screen resolution but playable
Pole Position II 584582bb09ee8122e7fc09dc7d1ed813 NO 60 Near perfect
Popeye Demo 2.9 640c7827fe63082efbaffc13f7983744 YES 60 Near perfect.
Spire of the Ancients 19844117863cd38d4e1e4cbc867ae599 NO 44 A bit slow but playable...
Spire of the Ancients 19844117863cd38d4e1e4cbc867ae599 NO 60 Near perfect
Rampage ac03806cef2558fc795a7d5d8dba7bc0 NO 60 Near perfect
Realsports Baseball bfad016d6e77eaccec74c0340aded8b9 NO 20 Way too slow.
Realsports Baseball bfad016d6e77eaccec74c0340aded8b9 NO 50 A bit slow but playable
Robotron 66ecaafe1b82ae68ffc96267aaf7a4d7 YES 60 Near perfect
Scramble a3a85e507d6f718972b1464ce1aaf8a4 YES 60 Near perfect
Scrapyard Dog 980c35ae9625773a450aa7ef51751c04 NO 40 Too slow to be playable
Scrapyard Dog 980c35ae9625773a450aa7ef51751c04 NO 60 Near perfect
Space Duel 771cb4609347657f63e6f0eb26036e35 YES 60 Near perfect
Space Invaders 6adf79558a3d7f5beca1bb8d34337417 YES 60 Near perfect
Summer Games cbb0746192540a13b4c7775c7ce2021f NO 60 Plays fine - font hard to read on small screen.
Super Skatebordin 59b5793bece1c80f77b55d60fb39cb94 NO 60 Near perfect.
Super Circus Atariage 81cee326b99d6831de10a566e338bd25 YES 60 Near perfect
Winter Games 3799d72f78dda2ee87b0ef8bf7b91186 NO 60 Plays fine - font hard to read on small screen.
Xenophobe 05fb699db9eef564e2fe45c568746dbc NO 60 Slows down to 52FPS in some areas but very playable.
Xenophobe 05fb699db9eef564e2fe45c568746dbc NO 60 Near perfect
Xevious d7dc17379aa25e5ae3c14b9e780c6f6d YES 60 Near perfect


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