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Update m226, m33. Add m433

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This commit is contained in:
negativeExponent
2022-02-10 22:45:05 +08:00
parent 6fee886589
commit 6dd4fbd3f7
5 changed files with 167 additions and 31 deletions
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37
src/boards/bmc42in1r.c
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@@ -18,21 +18,16 @@
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* BMC 42-in-1 "reset switch" + "select switch"
*
*/
/* Updated 2019-07-12
* Mapper 266 - Updated and combine UNIF Ghostbusters63in1 board (1.5 MB carts), different bank order
* Mapper 226 - Updated and combine UNIF Ghostbusters63in1 board (1.5 MB carts), different bank order
* - some 1MB carts can switch game lists using Select
* Mapper 233 - UNIF 42in1ResetSwitch - reset-based switching
*/
#include "mapinc.h"
static uint8 reorder_banks = 0;
static uint8 isresetbased = 0;
static uint8 latche[2], reset;
static uint8 banks[4] = { 0, 0, 1, 2 };
static SFORMAT StateRegs[] =
@@ -46,13 +41,9 @@ static void Sync(void) {
uint8 bank = 0;
uint8 base = ((latche[0] & 0x80) >> 7) | ((latche[1] & 1) << 1);
if (isresetbased)
bank = (latche[0] & 0x1f) | (reset << 5) | ((latche[1] & 1) << 6);
else {
if (reorder_banks) /* for 1536 KB prg roms */
base = banks[base];
bank = (base << 5) | (latche[0] & 0x1f);
}
if (reorder_banks) /* for 1536 KB prg roms */
base = banks[base];
bank = (base << 5) | (latche[0] & 0x1f);
if (!(latche[0] & 0x20))
setprg32(0x8000, bank >> 1);
@@ -70,7 +61,7 @@ static DECLFW(M226Write) {
}
static void M226Power(void) {
latche[0] = latche[1] = reset = 0;
latche[0] = latche[1] = 0;
Sync();
SetWriteHandler(0x8000, 0xFFFF, M226Write);
SetReadHandler(0x8000, 0xFFFF, CartBR);
@@ -81,12 +72,11 @@ static void StateRestore(int version) {
}
static void M226Reset(void) {
latche[0] = latche[1] = reset = 0;
latche[0] = latche[1] = 0;
Sync();
}
void Mapper226_Init(CartInfo *info) {
isresetbased = 0;
/* 1536KiB PRG roms have different bank order */
reorder_banks = ((info->PRGRomSize / 1024) == 1536) ? 1 : 0;
info->Power = M226Power;
@@ -94,18 +84,3 @@ void Mapper226_Init(CartInfo *info) {
AddExState(&StateRegs, ~0, 0, 0);
GameStateRestore = StateRestore;
}
static void M233Reset(void) {
latche[0] = latche[1] = 0;
reset ^= 1;
Sync();
}
void Mapper233_Init(CartInfo *info) {
reorder_banks = 0;
isresetbased = 1;
info->Power = M226Power;
info->Reset = M233Reset;
AddExState(&StateRegs, ~0, 0, 0);
GameStateRestore = StateRestore;
}