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Generalized the 93C66 EEPROM emulation to other capacities, and add 16-bit word size support. Update mapper 529 to use 93C56 EEPROM in 16-bit mode.

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This commit is contained in:
NewRisingSun
2025-04-07 22:22:44 +02:00
committed by LibretroAdmin
parent 6cbb11bdd1
commit 553865663d
7 changed files with 201 additions and 162 deletions
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10
src/boards/558.c
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@@ -23,7 +23,7 @@
/* Yancheng YC-03-09/Waixing FS??? PCB */
#include "mapinc.h"
#include "eeprom_93C66.h"
#include "eeprom_93Cx6.h"
static uint8 *WRAM;
static uint32 WRAMSIZE;
@@ -44,7 +44,7 @@ static void sync()
setchr8(0);
if (haveEEPROM)
eeprom_93C66_write(reg[2] &0x04, reg[2] &0x02, reg[2] &0x01);
eeprom_93Cx6_write(reg[2] &0x04, reg[2] &0x02, reg[2] &0x01);
}
static void hblank(void) {
@@ -60,7 +60,7 @@ static void hblank(void) {
static DECLFR(readReg)
{
if (haveEEPROM)
return eeprom_93C66_read()? 0x04: 0x00;
return eeprom_93Cx6_read()? 0x04: 0x00;
else
return reg[2] &0x04;
}
@@ -84,7 +84,7 @@ static void power(void)
{
memset(reg, 0, sizeof(reg));
if (haveEEPROM)
eeprom_93C66_init();
eeprom_93Cx6_init(512, 8);
sync();
SetReadHandler (0x5000, 0x57FF, readReg);
SetWriteHandler(0x5000, 0x57FF, writeReg);
@@ -128,7 +128,7 @@ void Mapper558_Init (CartInfo *info)
haveEEPROM =!!(info->PRGRamSaveSize &0x200);
if (haveEEPROM)
{
eeprom_93C66_storage = eeprom_data;
eeprom_93Cx6_storage = eeprom_data;
info->battery = 1;
info->SaveGame[0] = eeprom_data;
info->SaveGameLen[0] = 512;