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-rw-r--r--source/c4.c226
1 files changed, 113 insertions, 113 deletions
diff --git a/source/c4.c b/source/c4.c
index cda3e11..0a48c0b 100644
--- a/source/c4.c
+++ b/source/c4.c
@@ -1,6 +1,6 @@
/*******************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
-
+
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
Jerremy Koot (jkoot@snes9x.com)
@@ -43,46 +43,46 @@
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 x86 assembler emulator code
+ (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
- Super FX C emulator code
+ 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 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
+
-
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.
*******************************************************************************/
@@ -104,85 +104,85 @@ static double tanval;
static double c4x, c4y, c4z;
static double c4x2, c4y2, c4z2;
-void C4TransfWireFrame ()
+void C4TransfWireFrame()
{
- c4x = (double) C4WFXVal;
- c4y = (double) C4WFYVal;
- c4z = (double) C4WFZVal - 0x95;
-
- // Rotate X
- tanval = -(double) C4WFX2Val * 3.14159265 * 2 / 128;
- c4y2 = c4y * cos (tanval) - c4z * sin (tanval);
- c4z2 = c4y * sin (tanval) + c4z * cos (tanval);
-
- // Rotate Y
- tanval = -(double)C4WFY2Val*3.14159265*2/128;
- c4x2 = c4x * cos (tanval) + c4z2 * sin (tanval);
- c4z = c4x * - sin (tanval) + c4z2 * cos (tanval);
-
- // Rotate Z
- tanval = -(double) C4WFDist * 3.14159265*2 / 128;
- c4x = c4x2 * cos (tanval) - c4y2 * sin (tanval);
- c4y = c4x2 * sin (tanval) + c4y2 * cos (tanval);
-
- // Scale
- C4WFXVal = (short) (c4x*(double)C4WFScale/(0x90*(c4z+0x95))*0x95);
- C4WFYVal = (short) (c4y*(double)C4WFScale/(0x90*(c4z+0x95))*0x95);
+ c4x = (double) C4WFXVal;
+ c4y = (double) C4WFYVal;
+ c4z = (double) C4WFZVal - 0x95;
+
+ // Rotate X
+ tanval = -(double) C4WFX2Val * 3.14159265 * 2 / 128;
+ c4y2 = c4y * cos(tanval) - c4z * sin(tanval);
+ c4z2 = c4y * sin(tanval) + c4z * cos(tanval);
+
+ // Rotate Y
+ tanval = -(double)C4WFY2Val * 3.14159265 * 2 / 128;
+ c4x2 = c4x * cos(tanval) + c4z2 * sin(tanval);
+ c4z = c4x * - sin(tanval) + c4z2 * cos(tanval);
+
+ // Rotate Z
+ tanval = -(double) C4WFDist * 3.14159265 * 2 / 128;
+ c4x = c4x2 * cos(tanval) - c4y2 * sin(tanval);
+ c4y = c4x2 * sin(tanval) + c4y2 * cos(tanval);
+
+ // Scale
+ C4WFXVal = (short)(c4x * (double)C4WFScale / (0x90 * (c4z + 0x95)) * 0x95);
+ C4WFYVal = (short)(c4y * (double)C4WFScale / (0x90 * (c4z + 0x95)) * 0x95);
}
-void C4TransfWireFrame2 ()
+void C4TransfWireFrame2()
{
- c4x = (double)C4WFXVal;
- c4y = (double)C4WFYVal;
- c4z = (double)C4WFZVal;
-
- // Rotate X
- tanval = -(double) C4WFX2Val * 3.14159265 * 2 / 128;
- c4y2 = c4y * cos (tanval) - c4z * sin (tanval);
- c4z2 = c4y * sin (tanval) + c4z * cos (tanval);
-
- // Rotate Y
- tanval = -(double) C4WFY2Val * 3.14159265 * 2 / 128;
- c4x2 = c4x * cos (tanval) + c4z2 * sin (tanval);
- c4z = c4x * -sin (tanval) + c4z2 * cos (tanval);
-
- // Rotate Z
- tanval = -(double)C4WFDist * 3.14159265 * 2 / 128;
- c4x = c4x2 * cos (tanval) - c4y2 * sin (tanval);
- c4y = c4x2 * sin (tanval) + c4y2 * cos (tanval);
-
- // Scale
- C4WFXVal =(short)(c4x * (double)C4WFScale / 0x100);
- C4WFYVal =(short)(c4y * (double)C4WFScale / 0x100);
+ c4x = (double)C4WFXVal;
+ c4y = (double)C4WFYVal;
+ c4z = (double)C4WFZVal;
+
+ // Rotate X
+ tanval = -(double) C4WFX2Val * 3.14159265 * 2 / 128;
+ c4y2 = c4y * cos(tanval) - c4z * sin(tanval);
+ c4z2 = c4y * sin(tanval) + c4z * cos(tanval);
+
+ // Rotate Y
+ tanval = -(double) C4WFY2Val * 3.14159265 * 2 / 128;
+ c4x2 = c4x * cos(tanval) + c4z2 * sin(tanval);
+ c4z = c4x * -sin(tanval) + c4z2 * cos(tanval);
+
+ // Rotate Z
+ tanval = -(double)C4WFDist * 3.14159265 * 2 / 128;
+ c4x = c4x2 * cos(tanval) - c4y2 * sin(tanval);
+ c4y = c4x2 * sin(tanval) + c4y2 * cos(tanval);
+
+ // Scale
+ C4WFXVal = (short)(c4x * (double)C4WFScale / 0x100);
+ C4WFYVal = (short)(c4y * (double)C4WFScale / 0x100);
}
-void C4CalcWireFrame ()
+void C4CalcWireFrame()
{
- C4WFXVal = C4WFX2Val - C4WFXVal;
- C4WFYVal = C4WFY2Val - C4WFYVal;
- if (abs (C4WFXVal) > abs (C4WFYVal))
- {
- C4WFDist = abs (C4WFXVal) + 1;
- C4WFYVal = (short) (256 * (double) C4WFYVal / abs (C4WFXVal));
- if (C4WFXVal < 0)
- C4WFXVal = -256;
- else
- C4WFXVal = 256;
- }
- else
- {
- if (C4WFYVal != 0)
- {
- C4WFDist = abs(C4WFYVal)+1;
- C4WFXVal = (short) (256 * (double)C4WFXVal / abs (C4WFYVal));
- if (C4WFYVal < 0)
- C4WFYVal = -256;
- else
- C4WFYVal = 256;
- }
- else
- C4WFDist = 0;
- }
+ C4WFXVal = C4WFX2Val - C4WFXVal;
+ C4WFYVal = C4WFY2Val - C4WFYVal;
+ if (abs(C4WFXVal) > abs(C4WFYVal))
+ {
+ C4WFDist = abs(C4WFXVal) + 1;
+ C4WFYVal = (short)(256 * (double) C4WFYVal / abs(C4WFXVal));
+ if (C4WFXVal < 0)
+ C4WFXVal = -256;
+ else
+ C4WFXVal = 256;
+ }
+ else
+ {
+ if (C4WFYVal != 0)
+ {
+ C4WFDist = abs(C4WFYVal) + 1;
+ C4WFXVal = (short)(256 * (double)C4WFXVal / abs(C4WFYVal));
+ if (C4WFYVal < 0)
+ C4WFYVal = -256;
+ else
+ C4WFYVal = 256;
+ }
+ else
+ C4WFDist = 0;
+ }
}
short C41FXVal;
@@ -191,46 +191,46 @@ short C41FAngleRes;
short C41FDist;
short C41FDistVal;
-void C4Op1F ()
+void C4Op1F()
{
- if (C41FXVal == 0)
- {
- if (C41FYVal > 0)
- C41FAngleRes = 0x80;
- else
- C41FAngleRes = 0x180;
- }
- else
- {
- tanval = (double) C41FYVal / C41FXVal;
- C41FAngleRes = (short) (atan (tanval) / (3.141592675 * 2) * 512);
- C41FAngleRes = C41FAngleRes;
- if (C41FXVal< 0)
- C41FAngleRes += 0x100;
- C41FAngleRes &= 0x1FF;
- }
+ if (C41FXVal == 0)
+ {
+ if (C41FYVal > 0)
+ C41FAngleRes = 0x80;
+ else
+ C41FAngleRes = 0x180;
+ }
+ else
+ {
+ tanval = (double) C41FYVal / C41FXVal;
+ C41FAngleRes = (short)(atan(tanval) / (3.141592675 * 2) * 512);
+ C41FAngleRes = C41FAngleRes;
+ if (C41FXVal < 0)
+ C41FAngleRes += 0x100;
+ C41FAngleRes &= 0x1FF;
+ }
}
void C4Op15()
{
- tanval = sqrt ((double) C41FYVal * C41FYVal + (double) C41FXVal * C41FXVal);
- C41FDist = (short) tanval;
+ tanval = sqrt((double) C41FYVal * C41FYVal + (double) C41FXVal * C41FXVal);
+ C41FDist = (short) tanval;
}
void C4Op0D()
{
- tanval = sqrt ((double) C41FYVal * C41FYVal + (double) C41FXVal * C41FXVal);
- tanval = C41FDistVal / tanval;
- C41FYVal = (short) (C41FYVal * tanval * 0.99);
- C41FXVal = (short) (C41FXVal * tanval * 0.98);
+ tanval = sqrt((double) C41FYVal * C41FYVal + (double) C41FXVal * C41FXVal);
+ tanval = C41FDistVal / tanval;
+ C41FYVal = (short)(C41FYVal * tanval * 0.99);
+ C41FXVal = (short)(C41FXVal * tanval * 0.98);
}
#ifdef ZSNES_C4
-void C4LoaDMem(char *C4RAM)
+void C4LoaDMem(char* C4RAM)
{
- memmove(C4RAM+(READ_WORD(C4RAM+0x1f45)&0x1fff),
- S9xGetMemPointer(READ_3WORD(C4RAM+0x1f40)),
- READ_WORD(C4RAM+0x1f43));
+ memmove(C4RAM + (READ_WORD(C4RAM + 0x1f45) & 0x1fff),
+ S9xGetMemPointer(READ_3WORD(C4RAM + 0x1f40)),
+ READ_WORD(C4RAM + 0x1f43));
}
#endif
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