diff options
Diffstat (limited to 'source/c4emu.c')
| -rw-r--r-- | source/c4emu.c | 104 |
1 files changed, 3 insertions, 101 deletions
diff --git a/source/c4emu.c b/source/c4emu.c index a319a98..6fce00f 100644 --- a/source/c4emu.c +++ b/source/c4emu.c @@ -1,93 +1,5 @@ -/******************************************************************************* - Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. +#include "../copyright" - (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and - Jerremy Koot (jkoot@snes9x.com) - - (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net) - - (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net), - funkyass (funkyass@spam.shaw.ca), - Joel Yliluoma (http://iki.fi/bisqwit/) - Kris Bleakley (codeviolation@hotmail.com), - Matthew Kendora, - Nach (n-a-c-h@users.sourceforge.net), - Peter Bortas (peter@bortas.org) and - zones (kasumitokoduck@yahoo.com) - - C4 x86 assembler and some C emulation code - (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com), - _Demo_ (_demo_@zsnes.com), and Nach - - C4 C++ code - (c) Copyright 2003 Brad Jorsch - - DSP-1 emulator code - (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson, - John Weidman, neviksti (neviksti@hotmail.com), - Kris Bleakley, Andreas Naive - - DSP-2 emulator code - (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and - Lord Nightmare (lord_nightmare@users.sourceforge.net - - OBC1 emulator code - (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and - Kris Bleakley - Ported from x86 assembler to C by sanmaiwashi - - SPC7110 and RTC C++ emulator code - (c) Copyright 2002 Matthew Kendora with research by - zsKnight, John Weidman, and Dark Force - - S-DD1 C emulator code - (c) Copyright 2003 Brad Jorsch with research by - Andreas Naive and John Weidman - - S-RTC C emulator code - (c) Copyright 2001 John Weidman - - ST010 C++ emulator code - (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora - - Super FX x86 assembler emulator code - (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault - - Super FX C emulator code - (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman - - - SH assembler code partly based on x86 assembler code - (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se) - - (c) Copyright 2014 - 2016 Daniel De Matteis. (UNDER NO CIRCUMSTANCE - WILL COMMERCIAL RIGHTS EVER BE APPROPRIATED TO ANY PARTY) - - Specific ports contains the works of other authors. See headers in - individual files. - - Snes9x homepage: http://www.snes9x.com - - Permission to use, copy, modify and distribute Snes9x in both binary and - source form, for non-commercial purposes, is hereby granted without fee, - providing that this license information and copyright notice appear with - all copies and any derived work. - - This software is provided 'as-is', without any express or implied - warranty. In no event shall the authors be held liable for any damages - arising from the use of this software. - - Snes9x is freeware for PERSONAL USE only. Commercial users should - seek permission of the copyright holders first. Commercial use includes - charging money for Snes9x or software derived from Snes9x. - - The copyright holders request that bug fixes and improvements to the code - should be forwarded to them so everyone can benefit from the modifications - in future versions. - - Super NES and Super Nintendo Entertainment System are trademarks of - Nintendo Co., Limited and its subsidiary companies. -*******************************************************************************/ #ifdef HAVE_CONFIG_H #include <config.h> #endif @@ -100,9 +12,6 @@ void S9xInitC4() { - // Stupid zsnes code, we can't do the logical thing without breaking - // savestates - // Memory.C4RAM = &Memory.FillRAM [0x6000]; memset(Memory.C4RAM, 0, 0x2000); } @@ -278,10 +187,6 @@ static void C4DoScaleRotate(int row_padding) uint8_t w = Memory.C4RAM[0x1f89] & ~7; uint8_t h = Memory.C4RAM[0x1f8c] & ~7; - // printf("%dx%d XScale=%04x YScale=%04x angle=%03x\n", w, h, XScale, YScale, READ_WORD(Memory.C4RAM+0x1f80)&0x1ff); - // printf("Matrix: [%10g %10g] [%04x %04x]\n", A/4096.0, B/4096.0, A&0xffff, B&0xffff); - // printf(" [%10g %10g] [%04x %04x]\n", C/4096.0, D/4096.0, C&0xffff, D&0xffff); - // Clear the output RAM memset(Memory.C4RAM, 0, (w + row_padding / 4)*h / 2); @@ -380,9 +285,8 @@ static void C4DrawLine(int32_t X1, int32_t Y1, int16_t Z1, //.loop if (X1 > 0xff && Y1 > 0xff && X1 < 0x6000 && Y1 < 0x6000) { - uint16_t addr = ((X1 & ~0x7ff) + (Y1 & ~0x7ff) * 12 + (Y1 & 0x700)) >> 7; - addr = (((Y1 >> 8) >> 3) << 8) - (((Y1 >> 8) >> 3) << 6) + ((( - X1 >> 8) >> 3) << 4) + ((Y1 >> 8) & 7) * 2; + uint16_t addr = (((Y1 >> 8) >> 3) << 8) - (((Y1 >> 8) >> 3) << 6) + ((( + X1 >> 8) >> 3) << 4) + ((Y1 >> 8) & 7) * 2; uint8_t bit = 0x80 >> ((X1 >> 8) & 7); Memory.C4RAM[addr + 0x300] &= ~bit; Memory.C4RAM[addr + 0x301] &= ~bit; @@ -787,9 +691,7 @@ void S9xSetC4(uint8_t byte, uint16_t Address) case 0x54: // Square { int64_t a = SAR64((int64_t)READ_3WORD(Memory.C4RAM + 0x1f80) << 40, 40); - // printf("%08X%08X\n", (uint32_t)(a>>32), (uint32_t)(a&0xFFFFFFFF)); a *= a; - // printf("%08X%08X\n", (uint32_t)(a>>32), (uint32_t)(a&0xFFFFFFFF)); WRITE_3WORD(Memory.C4RAM + 0x1f83, a); WRITE_3WORD(Memory.C4RAM + 0x1f86, (a >> 24)); } |