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cheapocabra: Software ID mode disables entire ROM not just lowest 2 addresses, adding ID mode to save state

This commit is contained in:
rainwarrior 2016-08-31 19:52:25 +00:00
parent b0500e4925
commit 9a6d4f50cf
1 changed files with 12 additions and 5 deletions
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17
trunk/src/boards/cheapocabra.cpp
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@ -39,6 +39,7 @@ const uint32 CHRRAMSIZE = 1024 * 32;
static bool flash = false;
static uint8 flash_mode;
static uint8 flash_sequence;
static uint8 flash_id;
static uint8 *FLASHROM = NULL;
const uint32 FLASHROMSIZE = 1024 * 512;
@ -53,6 +54,7 @@ static SFORMAT FlashRegs[] =
{
{ &flash_mode, 1, "FMOD" },
{ &flash_sequence, 1, "FSEQ" },
{ &flash_id, 1, "FMID" },
{ 0 }
};
@ -84,19 +86,23 @@ static DECLFW(M111Write) {
static DECLFR(M111FlashID)
{
if (A == 0x8000) return 0xBF;
else if (A == 0x8001) return 0xB7;
else return CartBR(A);
uint32 a0 = A & 1;
if (a0 == 0) return 0xBF;
else return 0xB7;
}
void M111FlashIDEnter()
{
SetReadHandler(0x8000,0x8001,M111FlashID);
if (flash_id) return;
flash_id = 1;
SetReadHandler(0x8000,0xFFFF,M111FlashID);
}
void M111FlashIDExit()
{
SetReadHandler(0x8000,0x8001,CartBR);
if (!flash_id) return;
flash_id = 0;
SetReadHandler(0x8000,0xFFFF,CartBR);
}
static DECLFW(M111Flash) {
@ -204,6 +210,7 @@ static void M111Power(void) {
{
flash_mode = 0;
flash_sequence = 0;
flash_id = false;
SetWriteHandler(0x8000, 0xFFFF, M111Flash);
}
}