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DSP-3 support (opcodes RE'd by Overload and Feather). Thanks Jonas for finding a bug in my glue code.

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This commit is contained in:
n-a-c-h
2006-03-19 01:46:59 +00:00
parent 9cf8523127
commit 118e6cab85
6 changed files with 765 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
zsnes/src/Makefile.in
View File

@@ -35,7 +35,7 @@ CHIPSOBJ=${CHIPDIR}/sfxproc.o ${CHIPDIR}/fxemu2.o ${CHIPDIR}/dsp1proc.o\
${CHIPDIR}/sa1proc.o ${CHIPDIR}/sa1regs.o ${CHIPDIR}/dsp1emu.o\
${CHIPDIR}/st10proc.o ${CHIPDIR}/seta10.o ${CHIPDIR}/dsp2proc.o\
${CHIPDIR}/sdd1emu.o ${CHIPDIR}/c4emu.o ${CHIPDIR}/dsp4proc.o\
${CHIPDIR}/dsp4emu.o
${CHIPDIR}/dsp4emu.o ${CHIPDIR}/dsp3proc.o ${CHIPDIR}/dsp3emu.o
CPUOBJ=${CPUDIR}/dma.o ${CPUDIR}/dsp.o ${CPUDIR}/dspproc.o ${CPUDIR}/execute.o\
${CPUDIR}/executec.o ${CPUDIR}/irq.o ${CPUDIR}/memory.o\
@@ -161,6 +161,8 @@ ${CHIPDIR}/dsp1proc.o: ${CHIPDIR}/dsp1proc.asm macros.mac
${CHIPDIR}/dsp2proc.o: ${CHIPDIR}/dsp2proc.asm macros.mac
${CHIPDIR}/dsp4emu.o: ${CHIPDIR}/dsp4emu.c
${CHIPDIR}/dsp4proc.o: ${CHIPDIR}/dsp4proc.asm macros.mac
${CHIPDIR}/dsp3emu.o: ${CHIPDIR}/dsp3emu.c
${CHIPDIR}/dsp3proc.o: ${CHIPDIR}/dsp3proc.asm macros.mac
${CHIPDIR}/fxemu2.o: ${CHIPDIR}/fxemu2.asm macros.mac ${CHIPDIR}/fxemu2.mac
${CHIPDIR}/fxemu2b.o: ${CHIPDIR}/fxemu2b.asm macros.mac ${CHIPDIR}/fxemu2.mac\
${CHIPDIR}/fxemu2b.mac

678
zsnes/src/chips/dsp3emu.c Normal file
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@@ -0,0 +1,678 @@
/*
Copyright (C) 1997-2006 ZSNES Team ( zsKnight, _Demo_, pagefault, Nach )
http://www.zsnes.com
http://sourceforge.net/projects/zsnes
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
typedef unsigned char bool8;
typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned int uint32;
typedef char int8;
typedef short int16;
typedef long int32;
//C++ in C
typedef unsigned char bool;
#define true 1
#define false 0
uint16 DSP3_DataROM[1024] = {
0x8000, 0x4000, 0x2000, 0x1000, 0x0800, 0x0400, 0x0200, 0x0100,
0x0080, 0x0040, 0x0020, 0x0010, 0x0008, 0x0004, 0x0002, 0x0001,
0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, 0x0100,
0x0000, 0x000f, 0x0400, 0x0200, 0x0140, 0x0400, 0x0200, 0x0040,
0x007d, 0x007e, 0x007e, 0x007b, 0x007c, 0x007d, 0x007b, 0x007c,
0x0002, 0x0020, 0x0030, 0x0000, 0x000d, 0x0019, 0x0026, 0x0032,
0x003e, 0x004a, 0x0056, 0x0062, 0x006d, 0x0079, 0x0084, 0x008e,
0x0098, 0x00a2, 0x00ac, 0x00b5, 0x00be, 0x00c6, 0x00ce, 0x00d5,
0x00dc, 0x00e2, 0x00e7, 0x00ec, 0x00f1, 0x00f5, 0x00f8, 0x00fb,
0x00fd, 0x00ff, 0x0100, 0x0100, 0x0100, 0x00ff, 0x00fd, 0x00fb,
0x00f8, 0x00f5, 0x00f1, 0x00ed, 0x00e7, 0x00e2, 0x00dc, 0x00d5,
0x00ce, 0x00c6, 0x00be, 0x00b5, 0x00ac, 0x00a2, 0x0099, 0x008e,
0x0084, 0x0079, 0x006e, 0x0062, 0x0056, 0x004a, 0x003e, 0x0032,
0x0026, 0x0019, 0x000d, 0x0000, 0xfff3, 0xffe7, 0xffdb, 0xffce,
0xffc2, 0xffb6, 0xffaa, 0xff9e, 0xff93, 0xff87, 0xff7d, 0xff72,
0xff68, 0xff5e, 0xff54, 0xff4b, 0xff42, 0xff3a, 0xff32, 0xff2b,
0xff25, 0xff1e, 0xff19, 0xff14, 0xff0f, 0xff0b, 0xff08, 0xff05,
0xff03, 0xff01, 0xff00, 0xff00, 0xff00, 0xff01, 0xff03, 0xff05,
0xff08, 0xff0b, 0xff0f, 0xff13, 0xff18, 0xff1e, 0xff24, 0xff2b,
0xff32, 0xff3a, 0xff42, 0xff4b, 0xff54, 0xff5d, 0xff67, 0xff72,
0xff7c, 0xff87, 0xff92, 0xff9e, 0xffa9, 0xffb5, 0xffc2, 0xffce,
0xffda, 0xffe7, 0xfff3, 0x002b, 0x007f, 0x0020, 0x00ff, 0xff00,
0xffbe, 0x0000, 0x0044, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffc1, 0x0001, 0x0002, 0x0045,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffc5, 0x0003, 0x0004, 0x0005, 0x0047, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffca, 0x0006, 0x0007, 0x0008,
0x0009, 0x004a, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffd0, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x004e, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffd7, 0x000f, 0x0010, 0x0011,
0x0012, 0x0013, 0x0014, 0x0053, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffdf, 0x0015, 0x0016, 0x0017, 0x0018, 0x0019, 0x001a, 0x001b,
0x0059, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffe8, 0x001c, 0x001d, 0x001e,
0x001f, 0x0020, 0x0021, 0x0022, 0x0023, 0x0060, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xfff2, 0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a,
0x002b, 0x002c, 0x0068, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xfffd, 0x002d, 0x002e, 0x002f,
0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0071,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffc7, 0x0037, 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d,
0x003e, 0x003f, 0x0040, 0x0041, 0x007b, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffd4, 0x0000, 0x0001, 0x0002,
0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000a,
0x000b, 0x0044, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffe2, 0x000c, 0x000d, 0x000e, 0x000f, 0x0010, 0x0011, 0x0012,
0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 0x0018, 0x0050, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xfff1, 0x0019, 0x001a, 0x001b,
0x001c, 0x001d, 0x001e, 0x001f, 0x0020, 0x0021, 0x0022, 0x0023,
0x0024, 0x0025, 0x0026, 0x005d, 0x0000, 0x0000, 0x0000, 0x0000,
0xffcb, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d,
0x002e, 0x002f, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035,
0x006b, 0x0000, 0x0000, 0x0000, 0xffdc, 0x0000, 0x0001, 0x0002,
0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000a,
0x000b, 0x000c, 0x000d, 0x000e, 0x000f, 0x0044, 0x0000, 0x0000,
0xffee, 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016,
0x0017, 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e,
0x001f, 0x0020, 0x0054, 0x0000, 0xffee, 0x0021, 0x0022, 0x0023,
0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b,
0x002c, 0x002d, 0x002e, 0x002f, 0x0030, 0x0031, 0x0032, 0x0065,
0xffbe, 0x0000, 0xfeac, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffc1, 0x0001, 0x0002, 0xfead,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffc5, 0x0003, 0x0004, 0x0005, 0xfeaf, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffca, 0x0006, 0x0007, 0x0008,
0x0009, 0xfeb2, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffd0, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0xfeb6, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffd7, 0x000f, 0x0010, 0x0011,
0x0012, 0x0013, 0x0014, 0xfebb, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffdf, 0x0015, 0x0016, 0x0017, 0x0018, 0x0019, 0x001a, 0x001b,
0xfec1, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffe8, 0x001c, 0x001d, 0x001e,
0x001f, 0x0020, 0x0021, 0x0022, 0x0023, 0xfec8, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xfff2, 0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a,
0x002b, 0x002c, 0xfed0, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xfffd, 0x002d, 0x002e, 0x002f,
0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0xfed9,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffc7, 0x0037, 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d,
0x003e, 0x003f, 0x0040, 0x0041, 0xfee3, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffd4, 0x0000, 0x0001, 0x0002,
0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000a,
0x000b, 0xfeac, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffe2, 0x000c, 0x000d, 0x000e, 0x000f, 0x0010, 0x0011, 0x0012,
0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 0x0018, 0xfeb8, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xfff1, 0x0019, 0x001a, 0x001b,
0x001c, 0x001d, 0x001e, 0x001f, 0x0020, 0x0021, 0x0022, 0x0023,
0x0024, 0x0025, 0x0026, 0xfec5, 0x0000, 0x0000, 0x0000, 0x0000,
0xffcb, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d,
0x002e, 0x002f, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035,
0xfed3, 0x0000, 0x0000, 0x0000, 0xffdc, 0x0000, 0x0001, 0x0002,
0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000a,
0x000b, 0x000c, 0x000d, 0x000e, 0x000f, 0xfeac, 0x0000, 0x0000,
0xffee, 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016,
0x0017, 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e,
0x001f, 0x0020, 0xfebc, 0x0000, 0xffee, 0x0021, 0x0022, 0x0023,
0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b,
0x002c, 0x002d, 0x002e, 0x002f, 0x0030, 0x0031, 0x0032, 0xfecd,
0x0154, 0x0218, 0x0110, 0x00b0, 0x00cc, 0x00b0, 0x0088, 0x00b0,
0x0044, 0x00b0, 0x0000, 0x00b0, 0x00fe, 0xff07, 0x0002, 0x00ff,
0x00f8, 0x0007, 0x00fe, 0x00ee, 0x07ff, 0x0200, 0x00ef, 0xf800,
0x0700, 0x00ee, 0xffff, 0xffff, 0xffff, 0x0000, 0x0000, 0x0001,
0x0001, 0x0001, 0x0001, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff,
0xffff, 0x0000, 0x0000, 0x0001, 0x0001, 0x0001, 0x0001, 0x0000,
0x0000, 0xffff, 0xffff, 0x0000, 0xffff, 0x0001, 0x0000, 0x0001,
0x0001, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000,
0xffff, 0x0001, 0x0000, 0x0001, 0x0001, 0x0000, 0x0000, 0xffff,
0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0044, 0x0088, 0x00cc,
0x0110, 0x0154, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff
};
void (*SetDSP3)();
void DSP3_Command();
uint16 DSP3_DR;
uint16 DSP3_SR;
uint16 DSP3_MemoryIndex;
void DSP3_Reset()
{
DSP3_DR = 0x0080;
DSP3_SR = 0x0084;
SetDSP3 = &DSP3_Command;
}
void DSP3_MemorySize()
{
DSP3_DR = 0x0300;
SetDSP3 = &DSP3_Reset;
}
void DSP3_TestMemory()
{
DSP3_DR = 0x0000;
SetDSP3 = &DSP3_Reset;
}
void DSP3_DumpDataROM()
{
DSP3_DR = DSP3_DataROM[DSP3_MemoryIndex++];
if (DSP3_MemoryIndex == 1024)
SetDSP3 = &DSP3_Reset;
}
void DSP3_MemoryDump()
{
DSP3_MemoryIndex = 0;
SetDSP3 = &DSP3_DumpDataROM;
DSP3_DumpDataROM();
}
int16 DSP3_WinLo;
int16 DSP3_WinHi;
void DSP3_OP06()
{
DSP3_WinLo = (uint8)(DSP3_DR);
DSP3_WinHi = (uint8)(DSP3_DR >> 8);
DSP3_Reset();
}
void DSP3_OP03()
{
int16 Lo = (uint8)(DSP3_DR);
int16 Hi = (uint8)(DSP3_DR >> 8);
int16 Ofs = (DSP3_WinLo * Hi << 1) + (Lo << 1);
DSP3_DR = Ofs >> 1;
SetDSP3 = &DSP3_Reset;
}
int16 DSP3_AddLo;
int16 DSP3_AddHi;
void DSP3_OP07_B()
{
int16 Ofs = (DSP3_WinLo * DSP3_AddHi << 1) + (DSP3_AddLo << 1);
DSP3_DR = Ofs >> 1;
SetDSP3 = &DSP3_Reset;
}
void DSP3_OP07_A()
{
int16 Lo = (uint8)(DSP3_DR);
int16 Hi = (uint8)(DSP3_DR >> 8);
if (Lo & 1) Hi += (DSP3_AddLo & 1);
DSP3_AddLo += Lo;
DSP3_AddHi += Hi;
if (DSP3_AddLo < 0)
DSP3_AddLo += DSP3_WinLo;
else
if (DSP3_AddLo >= DSP3_WinLo)
DSP3_AddLo -= DSP3_WinLo;
if (DSP3_AddHi < 0)
DSP3_AddHi += DSP3_WinHi;
else
if (DSP3_AddHi >= DSP3_WinHi)
DSP3_AddHi -= DSP3_WinHi;
DSP3_DR = DSP3_AddLo | (DSP3_AddHi << 8) | ((DSP3_AddHi >> 8) & 0xff);
SetDSP3 = &DSP3_OP07_B;
}
void DSP3_OP07()
{
uint32 dataOfs = ((DSP3_DR << 1) + 0x03b2) & 0x03ff;
DSP3_AddHi = DSP3_DataROM[dataOfs];
DSP3_AddLo = DSP3_DataROM[dataOfs + 1];
SetDSP3 = &DSP3_OP07_A;
DSP3_SR = 0x0080;
}
uint16 DSP3_Codewords;
uint16 DSP3_Outwords;
uint16 DSP3_Symbol;
uint16 DSP3_BitCount;
uint16 DSP3_Index;
uint16 DSP3_Codes[512];
uint16 DSP3_BitsLeft;
uint16 DSP3_ReqBits;
uint16 DSP3_ReqData;
uint16 DSP3_BitCommand;
uint8 DSP3_BaseLength;
uint16 DSP3_BaseCodes;
uint16 DSP3_BaseCode;
uint8 DSP3_CodeLengths[8];
uint16 DSP3_CodeOffsets[8];
uint16 DSP3_LZCode;
uint8 DSP3_LZLength;
uint16 DSP3_X;
uint16 DSP3_Y;
void DSP3_Coordinate()
{
DSP3_Index++;
switch (DSP3_Index)
{
case 3:
{
if (DSP3_DR == 0xffff)
DSP3_Reset();
break;
}
case 4:
{
DSP3_X = DSP3_DR;
break;
}
case 5:
{
DSP3_Y = DSP3_DR;
DSP3_DR = 1;
break;
}
case 6:
{
DSP3_DR = DSP3_X;
break;
}
case 7:
{
DSP3_DR = DSP3_Y;
DSP3_Index = 0;
break;
}
}
}
uint8 DSP3_Bitmap[8];
uint8 DSP3_Bitplane[8];
uint16 DSP3_BMIndex;
uint16 DSP3_BPIndex;
uint16 DSP3_Count;
void DSP3_Convert_A()
{
if (DSP3_BMIndex < 8)
{
DSP3_Bitmap[DSP3_BMIndex++] = (uint8) (DSP3_DR);
DSP3_Bitmap[DSP3_BMIndex++] = (uint8) (DSP3_DR >> 8);
if (DSP3_BMIndex == 8)
{
short i, j;
for (i=0; i < 8; i++)
for (j=0; j < 8; j++)
{
DSP3_Bitplane[j] <<= 1;
DSP3_Bitplane[j] |= (DSP3_Bitmap[i] >> j) & 1;
}
DSP3_BPIndex = 0;
DSP3_Count--;
}
}
if (DSP3_BMIndex == 8)
{
if (DSP3_BPIndex == 8)
{
if (!DSP3_Count) DSP3_Reset();
DSP3_BMIndex = 0;
}
else
{
DSP3_DR = DSP3_Bitplane[DSP3_BPIndex++];
DSP3_DR |= DSP3_Bitplane[DSP3_BPIndex++] << 8;
}
}
}
void DSP3_Convert()
{
DSP3_Count = DSP3_DR;
DSP3_BMIndex = 0;
SetDSP3 = &DSP3_Convert_A;
}
bool DSP3_GetBits(uint8 Count)
{
if (!DSP3_BitsLeft)
{
DSP3_BitsLeft = Count;
DSP3_ReqBits = 0;
}
do {
if (!DSP3_BitCount)
{
DSP3_SR = 0xC0;
return false;
}
DSP3_ReqBits <<= 1;
if (DSP3_ReqData & 0x8000) DSP3_ReqBits++;
DSP3_ReqData <<= 1;
DSP3_BitCount--;
DSP3_BitsLeft--;
} while (DSP3_BitsLeft);
return true;
}
void DSP3_Decode_Data()
{
if (!DSP3_BitCount)
{
if (DSP3_SR & 0x40)
{
DSP3_ReqData = DSP3_DR;
DSP3_BitCount += 16;
}
else
{
DSP3_SR = 0xC0;
return;
}
}
if (DSP3_LZCode == 1)
{
if (!DSP3_GetBits(1))
return;
if (DSP3_ReqBits)
DSP3_LZLength = 12;
else
DSP3_LZLength = 8;
DSP3_LZCode++;
}
if (DSP3_LZCode == 2)
{
if (!DSP3_GetBits(DSP3_LZLength))
return;
DSP3_LZCode = 0;
DSP3_Outwords--;
if (!DSP3_Outwords) SetDSP3 = &DSP3_Reset;
DSP3_SR = 0x80;
DSP3_DR = DSP3_ReqBits;
return;
}
if (DSP3_BaseCode == 0xffff)
{
if (!DSP3_GetBits(DSP3_BaseLength))
return;
DSP3_BaseCode = DSP3_ReqBits;
}
if (!DSP3_GetBits(DSP3_CodeLengths[DSP3_BaseCode]))
return;
DSP3_Symbol = DSP3_Codes[DSP3_CodeOffsets[DSP3_BaseCode] + DSP3_ReqBits];
DSP3_BaseCode = 0xffff;
if (DSP3_Symbol & 0xff00)
{
DSP3_Symbol += 0x7f02;
DSP3_LZCode++;
}
else
{
DSP3_Outwords--;
if (!DSP3_Outwords)
SetDSP3 = &DSP3_Reset;
}
DSP3_SR = 0x80;
DSP3_DR = DSP3_Symbol;
}
void DSP3_Decode_Tree()
{
if (!DSP3_BitCount)
{
DSP3_ReqData = DSP3_DR;
DSP3_BitCount += 16;
}
if (!DSP3_BaseCodes)
{
DSP3_GetBits(1);
if (DSP3_ReqBits)
{
DSP3_BaseLength = 3;
DSP3_BaseCodes = 8;
}
else
{
DSP3_BaseLength = 2;
DSP3_BaseCodes = 4;
}
}
while (DSP3_BaseCodes)
{
if (!DSP3_GetBits(3))
return;
DSP3_ReqBits++;
DSP3_CodeLengths[DSP3_Index] = (uint8) DSP3_ReqBits;
DSP3_CodeOffsets[DSP3_Index] = DSP3_Symbol;
DSP3_Index++;
DSP3_Symbol += 1 << DSP3_ReqBits;
DSP3_BaseCodes--;
}
DSP3_BaseCode = 0xffff;
DSP3_LZCode = 0;
SetDSP3 = &DSP3_Decode_Data;
if (DSP3_BitCount) DSP3_Decode_Data();
}
void DSP3_Decode_Symbols()
{
DSP3_ReqData = DSP3_DR;
DSP3_BitCount += 16;
do {
if (DSP3_BitCommand == 0xffff)
{
if (!DSP3_GetBits(2)) return;
DSP3_BitCommand = DSP3_ReqBits;
}
switch (DSP3_BitCommand)
{
case 0:
{
if (!DSP3_GetBits(9)) return;
DSP3_Symbol = DSP3_ReqBits;
break;
}
case 1:
{
DSP3_Symbol++;
break;
}
case 2:
{
if (!DSP3_GetBits(1)) return;
DSP3_Symbol += 2 + DSP3_ReqBits;
break;
}
case 3:
{
if (!DSP3_GetBits(4)) return;
DSP3_Symbol += 4 + DSP3_ReqBits;
break;
}
}
DSP3_BitCommand = 0xffff;
DSP3_Codes[DSP3_Index++] = DSP3_Symbol;
DSP3_Codewords--;
} while (DSP3_Codewords);
DSP3_Index = 0;
DSP3_Symbol = 0;
DSP3_BaseCodes = 0;
SetDSP3 = &DSP3_Decode_Tree;
if (DSP3_BitCount) DSP3_Decode_Tree();
}
void DSP3_Decode_A()
{
DSP3_Outwords = DSP3_DR;
SetDSP3 = &DSP3_Decode_Symbols;
DSP3_BitCount = 0;
DSP3_BitsLeft = 0;
DSP3_Symbol = 0;
DSP3_Index = 0;
DSP3_BitCommand = 0xffff;
DSP3_SR = 0xC0;
}
void DSP3_Decode()
{
DSP3_Codewords = DSP3_DR;
SetDSP3 = &DSP3_Decode_A;
}
void DSP3_Command()
{
if (DSP3_DR < 0x40)
{
switch (DSP3_DR)
{
case 0x02: SetDSP3 = &DSP3_Coordinate; break;
case 0x03: SetDSP3 = &DSP3_OP03; break;
case 0x06: SetDSP3 = &DSP3_OP06; break;
case 0x07: SetDSP3 = &DSP3_OP07; return;
case 0x0f: SetDSP3 = &DSP3_TestMemory; break;
case 0x18: SetDSP3 = &DSP3_Convert; break;
case 0x1f: SetDSP3 = &DSP3_MemoryDump; break;
case 0x2f: SetDSP3 = &DSP3_MemorySize; break;
case 0x38: SetDSP3 = &DSP3_Decode; break;
}
DSP3_SR = 0x0080;
DSP3_Index = 0;
}
}
uint8 dsp3_byte;
uint16 dsp3_address;
void DSP3SetByte()
{
if (dsp3_address < 0xC000)
{
if (DSP3_SR & 0x04)
{
DSP3_DR = (DSP3_DR & 0xff00) + dsp3_byte;
(*SetDSP3)();
}
else
{
DSP3_SR ^= 0x10;
if (DSP3_SR & 0x10)
DSP3_DR = (DSP3_DR & 0xff00) + dsp3_byte;
else
{
DSP3_DR = (DSP3_DR & 0x00ff) + (dsp3_byte << 8);
(*SetDSP3)();
}
}
}
}
void DSP3GetByte()
{
if (dsp3_address < 0xC000)
{
if (DSP3_SR & 0x04)
{
dsp3_byte = (uint8) DSP3_DR;
(*SetDSP3)();
}
else
{
DSP3_SR ^= 0x10;
if (DSP3_SR & 0x10)
dsp3_byte = (uint8) (DSP3_DR);
else
{
dsp3_byte = (uint8) (DSP3_DR >> 8);
(*SetDSP3)();
}
}
}
else
{
dsp3_byte = (uint8) DSP3_SR;
}
}
void InitDSP3()
{
DSP3_Reset();
}

78
zsnes/src/chips/dsp3proc.asm Normal file
View File

@@ -0,0 +1,78 @@
;Copyright (C) 1997-2006 ZSNES Team ( zsKnight, _Demo_, pagefault, Nach )
;
;http://www.zsnes.com
;http://sourceforge.net/projects/zsnes
;
;This program is free software; you can redistribute it and/or
;modify it under the terms of the GNU General Public License
;version 2 as published by the Free Software Foundation.
;
;This program is distributed in the hope that it will be useful,
;but WITHOUT ANY WARRANTY; without even the implied warranty of
;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;GNU General Public License for more details.
;
;You should have received a copy of the GNU General Public License
;along with this program; if not, write to the Free Software
;Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
%include "macros.mac"
EXTSYM dsp3_address,dsp3_byte,DSP3GetByte,DSP3SetByte
EXTSYM regaccessbankr16,regaccessbankr8,regaccessbankw16,regaccessbankw8
SECTION .text
%macro RouteAccess 1
cmp ecx,08000h
jb %1
%endmacro
NEWSYM DSP3Read8b
RouteAccess regaccessbankr8
mov [dsp3_address],cx
pushad
call DSP3GetByte
popad
mov al,[dsp3_byte]
ret
NEWSYM DSP3Write8b
RouteAccess regaccessbankw8
mov [dsp3_address],cx
mov [dsp3_byte],al
pushad
call DSP3SetByte
popad
ret
NEWSYM DSP3Read16b
RouteAccess regaccessbankr16
mov [dsp3_address],cx
pushad
call DSP3GetByte
mov al,[dsp3_byte]
mov [dsp3temp],al
inc word[dsp3_address]
call DSP3GetByte
popad
mov al,[dsp3temp]
mov ah,[dsp3_byte]
ret
NEWSYM DSP3Write16b
RouteAccess regaccessbankw16
mov [dsp3_address],cx
mov [dsp3_byte],al
mov [dsp3temp],ah
pushad
call DSP3SetByte
mov ah,[dsp3temp]
mov [dsp3_byte],ah
inc word[dsp3_address]
call DSP3SetByte
popad
ret
SECTION .bss
NEWSYM dsp3temp, resb 1

4
zsnes/src/cpu/memtable.c
View File

@@ -253,7 +253,7 @@ void SA1RAMaccessbankr8b(), SA1RAMaccessbankw8b(), SA1RAMaccessbankr16b(), SA1RA
void sramaccessbankr8s(), sramaccessbankw8s(), sramaccessbankr16s(), sramaccessbankw16s();
void DSP1Read8b3F(), DSP1Write8b3F(), DSP1Read16b3F(), DSP1Write16b3F();
void DSP2Read8b(), DSP2Write8b(), DSP2Read16b(), DSP2Write16b();
//void DSP3Read8b(), DSP3Write8b(), DSP3Read16b(), DSP3Write16b();
void DSP3Read8b(), DSP3Write8b(), DSP3Read16b(), DSP3Write16b();
void DSP4Read8b(), DSP4Write8b(), DSP4Read16b(), DSP4Write16b();
void setaaccessbankr8(), setaaccessbankw8(), setaaccessbankr16(), setaaccessbankw16();
void setaaccessbankr8a(), setaaccessbankw8a(), setaaccessbankr16a(), setaaccessbankw16a();
@@ -275,7 +275,7 @@ mrwp sa1rambankb = { SA1RAMaccessbankr8b, SA1RAMaccessbankw8b, SA1RAMaccessbankr
mrwp sramsbank = { sramaccessbankr8s, sramaccessbankw8s, sramaccessbankr16s, sramaccessbankw16s };
mrwp dsp1bank = { DSP1Read8b3F, DSP1Write8b3F, DSP1Read16b3F, DSP1Write16b3F };
mrwp dsp2bank = { DSP2Read8b, DSP2Write8b, DSP2Read16b, DSP2Write16b };
//mrwp dsp3bank = { DSP3Read8b, DSP3Write8b, DSP3Read16b, DSP3Write16b };
mrwp dsp3bank = { DSP3Read8b, DSP3Write8b, DSP3Read16b, DSP3Write16b };
mrwp dsp4bank = { DSP4Read8b, DSP4Write8b, DSP4Read16b, DSP4Write16b };
mrwp setabank = { setaaccessbankr8, setaaccessbankw8, setaaccessbankr16, setaaccessbankw16 };
mrwp setabanka = { setaaccessbankr8a, setaaccessbankw8a, setaaccessbankr16a, setaaccessbankw16a };

2
zsnes/src/cpu/memtable.h
View File

@@ -36,7 +36,7 @@ typedef struct
extern mrwp regbank, membank, wrambank, srambank, erambank, sramsbank;
extern mrwp sa1regbank, sa1rambank, sa1rambankb;
extern mrwp dsp1bank, dsp2bank, /* dsp3bank, */ dsp4bank;
extern mrwp dsp1bank, dsp2bank, dsp3bank, dsp4bank;
extern mrwp setabank, setabanka;
extern mrwp sfxbank, sfxbankb, sfxbankc, sfxbankd;

6
zsnes/src/initc.c
View File

@@ -1940,7 +1940,7 @@ extern unsigned short totlines;
void SetAddressingModes(), GenerateBank0Table();
void SetAddressingModesSA1(), GenerateBank0TableSA1();
void calculate_state_sizes(), InitRewindVars();
void InitDSP(), InitDSP2(), InitDSP4(), InitFxTables(), initregr(), initregw();
void InitDSP(), InitDSP2(), InitDSP3(), InitDSP4(), InitFxTables(), initregr(), initregw();
void SPC7110Load(), DOSClearScreen(), dosmakepal();
void CheckROMType()
@@ -1982,7 +1982,7 @@ void CheckROMType()
DSP1Type = (romtype == 2) ? 2 : 1;
}
/*
if (DSP3Enable)
{
InitDSP3();
@@ -1990,7 +1990,7 @@ void CheckROMType()
// DSP-3 mapping, banks 20 - 3F
map_mem(0x20, &dsp3bank, 0x20);
}
*/
if (DSP4Enable)
{
InitDSP4();