a_dinosaur/ZSNES
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Fix some init glitches.

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This commit is contained in:
n-a-c-h
2005-02-24 13:03:51 +00:00
parent 6a144dd8a2
commit df3275b8c4
3 changed files with 18 additions and 17 deletions
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32
zsnes/src/chips/dsp4emu.c
View File

@@ -20,6 +20,8 @@ along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/ */
#include <string.h>
typedef unsigned char bool8; typedef unsigned char bool8;
typedef unsigned char uint8; typedef unsigned char uint8;
typedef unsigned short uint16; typedef unsigned short uint16;
@@ -30,19 +32,6 @@ typedef long int32;
#define FALSE 0 #define FALSE 0
#define TRUE 1 #define TRUE 1
struct
{
bool8 waiting4command;
bool8 half_command;
uint16 command;
uint32 in_count;
uint32 in_index;
uint32 out_count;
uint32 out_index;
uint8 parameters[512];
uint8 output[512];
} DSP4;
/* /*
Due recognition and credit are given on Overload's DSP website. Due recognition and credit are given on Overload's DSP website.
Thank those contributors for their hard work on this chip. Thank those contributors for their hard work on this chip.
@@ -61,6 +50,19 @@ Fixed-point math reminder:
#define WRITE_WORD(s, d) (*(uint16 *) (s)) = (d) #define WRITE_WORD(s, d) (*(uint16 *) (s)) = (d)
#define WRITE_DWORD(s, d) (*(uint32 *) (s)) = (d) #define WRITE_DWORD(s, d) (*(uint32 *) (s)) = (d)
struct
{
bool8 waiting4command;
bool8 half_command;
uint16 command;
uint32 in_count;
uint32 in_index;
uint32 out_count;
uint32 out_index;
uint8 parameters[512];
uint8 output[512];
} DSP4;
// op control // op control
int8 DSP4_Logic; // controls op flow int8 DSP4_Logic; // controls op flow
@@ -2043,14 +2045,12 @@ void DSP4_OP11(int16 A, int16 B, int16 C, int16 D, int16 *M)
//Processing Code //Processing Code
///////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////
uint8 dsp4_byte; uint8 dsp4_byte;
uint16 dsp4_address; uint16 dsp4_address;
void InitDSP4() void InitDSP4()
{ {
memset(&DSP4, 0, sizeof(DSP4));
DSP4.waiting4command = TRUE; DSP4.waiting4command = TRUE;
} }

2
zsnes/src/chips/dsp4proc.asm
View File

@@ -49,7 +49,7 @@ NEWSYM DSP4Read16b
popad popad
mov ah,byte[dsp4_byte] mov ah,byte[dsp4_byte]
ret ret
;
NEWSYM DSP4Write16b NEWSYM DSP4Write16b
mov word[dsp4_address],cx mov word[dsp4_address],cx
mov byte[dsp4_byte],al mov byte[dsp4_byte],al

1
zsnes/src/init.asm
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@@ -3085,6 +3085,7 @@ NEWSYM CheckROMType
cmp byte[DSP3Enable],1 cmp byte[DSP3Enable],1
je .initdsp je .initdsp
cmp byte[DSP4Enable],1 cmp byte[DSP4Enable],1
jne .notDSP1Hi
pushad pushad
call InitDSP4 call InitDSP4
popad popad