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apply XPARAM directly on RAM #1277

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apply XPARAM directly on RAM #1277

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78 changes: 35 additions & 43 deletions src/xparam.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7,11 +7,29 @@
*/

#include "include/opl.h"
#include "include/util.h"
#include "include/xparam.h"

char params_DCACHE_OFF[] = {'0', 'x', '1', '0', 0, '0', 0};
char params_CPU_DELAY[] = {'0', 'x', '6', 0, '0', 'x', '7', '8', '0', 0};
typedef struct _xparam_payload
{
int param;
u32 value;
} xparam_payload;

xparam_payload params_DCACHE_OFF = {0x10, 0x00};
xparam_payload params_CPU_DELAY = {0x6, 0x780};
xparam_payload params_RESET_PARAM_SET = {0xffffffff, 0x0}; //rom0:XPARAM performs this thing before parsing argv
#define XPARAM_PARAM_ADDR *((uint32_t *)0xFFFE01A0)
#define XPARAM_VALUE_ADDR *((uint32_t *)0xFFFE01A4)

void SetXparamInRAM(xparam_payload T)
{
XPARAM_PARAM_ADDR = params_RESET_PARAM_SET.param;
XPARAM_VALUE_ADDR = params_RESET_PARAM_SET.value;
delay(1); //just to be sure?
XPARAM_PARAM_ADDR = T.param;
XPARAM_VALUE_ADDR = T.value;
}

int CheckSpecialDiscXParamTitle(const char *title)
{
Expand Down Expand Up @@ -76,8 +94,7 @@ void ApplyExtraXParamTitle(const char *title, char *params)

if (result) {
// All of them are new added ones and all use 0x10 0 (DCACHE OFF )
memcpy(&params[12], params_DCACHE_OFF, 7);
SifLoadModule("rom0:XPARAM", 19, params);
SetXparamInRAM(params_DCACHE_OFF);
return;
}

Expand All @@ -94,8 +111,7 @@ void ApplyExtraXParamTitle(const char *title, char *params)
result |= !strncmp("SLUS_210.59", title, 11);

if (result) {
memcpy(&params[12], params_CPU_DELAY, 10);
SifLoadModule("rom0:XPARAM", 22, params);
SetXparamInRAM(params_CPU_DELAY);
return;
}

Expand All @@ -106,11 +122,8 @@ void ApplyExtraXParamTitle(const char *title, char *params)
Tekken 5 (Australia)
Tekken 5 would have the cache off but not the CPU delay, however, this regional release for the first bios of 750xx had neither the cache nor the delay making it run worse.
*/
memcpy(&params[12], params_DCACHE_OFF, 7);
SifLoadModule("rom0:XPARAM", 19, params);

memcpy(&params[12], params_CPU_DELAY, 10);
SifLoadModule("rom0:XPARAM", 22, params);
SetXparamInRAM(params_DCACHE_OFF);
SetXparamInRAM(params_CPU_DELAY);
}
}

Expand All @@ -129,20 +142,7 @@ void ResetDeckardXParams()
if ((*GM_IF & GM_IOP_TYPE) == 0)
return;

int fd;
char params[30];
memset(params, 0, 30);
strncpy(params, "SLPS_123.45", 11);
params[11] = 0; // Terminate param string.

// For PS3/4 emu we skip default.
fd = open("rom0:XPARAM2", O_RDONLY);
if (fd >= 0) {
close(fd);
return;
}

u32 default_values[] = {
const u32 default_values[] = {
0x01F4, // PARAM_MDEC_DELAY_CYCLE
0x07D0, // PARAM_SPU_INT_DELAY_LIMIT
0x0023, // PARAM_SPU_INT_DELAY_PPC_COEFF
Expand All @@ -162,20 +162,13 @@ void ResetDeckardXParams()
0x0001, // PARAM_MIPS_DCACHE_ON
0x0090 // PARAM_CACHE_FLASH_CHANNELS
};

fd = open("rom0:XPARAM", O_RDONLY);
if (fd >= 0) {
close(fd);

// Reset all the params to default.
int i;
for (i = 0; i < 0x12; i++) {
sprintf(&params[12], "0X%02X", i);
params[16] = 0;
sprintf(&params[17], "0X%08X", default_values[i]);
params[27] = 0;
SifLoadModule("rom0:XPARAM", 28, params);
}
// Reset all the params to default.
int i;
xparam_payload T;
for (i = 0; i < 0x12; i++) {
T.param = i;
T.value = default_values[i];
SetXparamInRAM(T);
}
}

Expand Down Expand Up @@ -221,13 +214,12 @@ void ApplyDeckardXParam(const char *title)

if (CheckSpecialDiscXParamTitle(title)) {
// All of them use 0x10 0 (DCACHE OFF)
// Params are sent as direct string null separated.
memcpy(&params[12], params_DCACHE_OFF, 7);
SifLoadModule("rom0:XPARAM", 19, params);
SetXparamInRAM(params_DCACHE_OFF);
return;
}

// Load the default configs found in the XPARAM module.
// Here we call rom0:XPARAM so it parses its own database.
// Saving us the trouble of having a copy of that DB on our code
SifLoadModule("rom0:XPARAM", 12, params);

/*
Expand Down
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