mirror of
https://github.com/Pecusx/libretro-atari800.git
synced 2026-05-21 06:39:36 +02:00
Fix first run crashing on Xbox One. Added savestate support. Rewind … (#87)
* Fix first run crashing on Xbox One. * Added savestate support. * Rewind works. Fixes issue #83 and possibly #49. * Added Disc Control menu. Supports Disks, Tapes and M3U files (issue #66). * Added in support for 5200 Super Carts. * Better support for 5200 controller. * Added Paddle support. * Converted Core Options menu to v2. * Moved some core options into submenus. * Added controller mappings for Ports 2-4. * Added options for Dual Stick and Swap Ports. Fixes issue #76. * Joystick/Console now controlled more easily with device type Atari Keyboard. * Added 4 Hi-Res Artifacting modes. Restart does something now. * When core option changed only reboot if necessary. Removed several hardcoded controller binds. Fixed issue #29. Joypad input ignored when virtual keyboard active. * SIO Acceleration now defaults to enabled. Fix for Bounty Bob (5200 & lift fix A800). * Added Atari 800 carts to autodetect DB. * Added more Carts to DB. * Fixed Drive Index not being reset on 'restart'. * Changed Atari Joystick default mappings to something more reasonable.
This commit is contained in:
greenchili2
+357
-2
@@ -339,6 +339,351 @@ void MEMORY_InitialiseMachine(void)
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#ifndef BASIC
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#if defined(__LIBRETRO__)
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void Retro_MEMORY_StateSave(UBYTE SaveVerbose)
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{
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int temp;
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UBYTE byte;
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/* Axlon/Mosaic for 400/800 */
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if (Atari800_machine_type == Atari800_MACHINE_800) {
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Retro_SaveINT(&MEMORY_axlon_num_banks, 1);
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if (MEMORY_axlon_num_banks > 0) {
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Retro_SaveINT(&axlon_curbank, 1);
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Retro_SaveINT(&MEMORY_axlon_0f_mirror, 1);
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Retro_SaveUBYTE(axlon_ram, MEMORY_axlon_num_banks * 0x4000);
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}
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Retro_SaveINT(&mosaic_current_num_banks, 1);
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if (mosaic_current_num_banks > 0) {
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Retro_SaveINT(&mosaic_curbank, 1);
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Retro_SaveUBYTE(mosaic_ram, mosaic_current_num_banks * 0x1000);
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}
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}
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/* Save amount of base RAM in kilobytes. */
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temp = MEMORY_ram_size > 64 ? 64 : MEMORY_ram_size;
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Retro_SaveINT(&temp, 1);
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Retro_SaveUBYTE(&MEMORY_mem[0], 65536);
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#ifndef PAGED_ATTRIB
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Retro_SaveUBYTE(&MEMORY_attrib[0], 65536);
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#else
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{
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/* I assume here that consecutive calls to StateSav_SaveUBYTE()
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are equivalent to a single call with all the values
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(i.e. StateSav_SaveUBYTE() doesn't write any headers). */
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UBYTE attrib_page[256];
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int i;
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for (i = 0; i < 256; i++) {
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if (MEMORY_writemap[i] == NULL)
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memset(attrib_page, MEMORY_RAM, 256);
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else if (MEMORY_writemap[i] == MEMORY_ROM_PutByte)
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memset(attrib_page, MEMORY_ROM, 256);
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else if (i == 0x4f || i == 0x5f || i == 0x8f || i == 0x9f) {
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/* special case: Bounty Bob bank switching registers */
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memset(attrib_page, MEMORY_ROM, 256);
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attrib_page[0xf6] = MEMORY_HARDWARE;
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attrib_page[0xf7] = MEMORY_HARDWARE;
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attrib_page[0xf8] = MEMORY_HARDWARE;
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attrib_page[0xf9] = MEMORY_HARDWARE;
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}
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else {
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memset(attrib_page, MEMORY_HARDWARE, 256);
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}
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Retro_SaveUBYTE(&attrib_page[0], 256);
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}
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}
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#endif
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if (Atari800_machine_type == Atari800_MACHINE_XLXE) {
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if (SaveVerbose != 0)
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Retro_SaveUBYTE(&MEMORY_basic[0], 8192);
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Retro_SaveUBYTE(&under_cartA0BF[0], 8192);
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if (SaveVerbose != 0)
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Retro_SaveUBYTE(&MEMORY_os[0], 16384);
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Retro_SaveUBYTE(&under_atarixl_os[0], 16384);
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if (SaveVerbose != 0)
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Retro_SaveUBYTE(MEMORY_xegame, 0x2000);
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}
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/* Save amount of XE RAM in 16KB banks. */
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temp = (MEMORY_ram_size - 64) / 16;
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if (temp < 0)
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temp = 0;
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Retro_SaveINT(&temp, 1);
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if (MEMORY_ram_size == MEMORY_RAM_320_RAMBO || MEMORY_ram_size == MEMORY_RAM_320_COMPY_SHOP) {
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/* Save specific banking type. */
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temp = MEMORY_ram_size - 320;
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Retro_SaveINT(&temp, 1);
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}
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byte = PIA_PORTB | PIA_PORTB_mask;
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Retro_SaveUBYTE(&byte, 1);
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Retro_SaveINT(&MEMORY_cartA0BF_enabled, 1);
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if (MEMORY_ram_size > 64) {
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Retro_SaveUBYTE(&atarixe_memory[0], atarixe_memory_size);
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if (ANTIC_xe_ptr != NULL && MEMORY_selftest_enabled)
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Retro_SaveUBYTE(antic_bank_under_selftest, 0x800);
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}
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/* Simius XL/XE MapRAM expansion */
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if (Atari800_machine_type == Atari800_MACHINE_XLXE && MEMORY_ram_size > 20) {
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Retro_SaveINT(&MEMORY_enable_mapram, 1);
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if (MEMORY_enable_mapram) {
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Retro_SaveUBYTE(mapram_memory, 0x800);
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}
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}
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}
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void Retro_MEMORY_StateRead(UBYTE SaveVerbose, UBYTE StateVersion)
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{
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int base_ram_kb;
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int num_xe_banks;
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UBYTE portb;
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/* Axlon/Mosaic for 400/800 */
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if (Atari800_machine_type == Atari800_MACHINE_800 && StateVersion >= 5) {
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Retro_ReadINT(&MEMORY_axlon_num_banks, 1);
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if (MEMORY_axlon_num_banks > 0) {
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Retro_ReadINT(&axlon_curbank, 1);
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if (StateVersion < 7) {
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/* Read bank mask, then increase by 1 to get number of banks. */
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Retro_ReadINT(&MEMORY_axlon_num_banks, 1);
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++MEMORY_axlon_num_banks;
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}
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Retro_ReadINT(&MEMORY_axlon_0f_mirror, 1);
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if (StateVersion < 7) {
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int temp;
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/* Ignore saved RAM size - can be derived. */
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Retro_ReadINT(&temp, 1);
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}
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alloc_axlon_memory();
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Retro_ReadUBYTE(axlon_ram, MEMORY_axlon_num_banks * 0x4000);
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}
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Retro_ReadINT(&MEMORY_mosaic_num_banks, 1);
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if (MEMORY_mosaic_num_banks > 0) {
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Retro_ReadINT(&mosaic_curbank, 1);
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if (StateVersion < 7) {
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int temp;
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/* Read max bank number, then increase by 1 to get number of banks. */
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Retro_ReadINT(&MEMORY_mosaic_num_banks, 1);
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++MEMORY_mosaic_num_banks;
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Retro_ReadINT(&temp, 1); /* Ignore Mosaic RAM size - can be derived. */
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}
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alloc_mosaic_memory();
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Retro_ReadUBYTE(mosaic_ram, mosaic_current_num_banks * 0x1000);
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}
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}
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if (StateVersion >= 7)
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/* Read amount of base RAM in kilobytes. */
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Retro_ReadINT(&base_ram_kb, 1);
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Retro_ReadUBYTE(&MEMORY_mem[0], 65536);
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#ifndef PAGED_ATTRIB
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Retro_ReadUBYTE(&MEMORY_attrib[0], 65536);
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#else
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{
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UBYTE attrib_page[256];
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int i;
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for (i = 0; i < 256; i++) {
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Retro_ReadUBYTE(&attrib_page[0], 256);
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/* note: 0x40 is intentional here:
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we want ROM on page 0xd1 if H: patches are enabled */
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switch (attrib_page[0x40]) {
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case MEMORY_RAM:
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MEMORY_readmap[i] = NULL;
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MEMORY_writemap[i] = NULL;
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break;
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case MEMORY_ROM:
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if (i != 0xd1 && attrib_page[0xf6] == MEMORY_HARDWARE) {
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if (i == 0x4f || i == 0x8f) {
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MEMORY_readmap[i] = CARTRIDGE_BountyBob1GetByte;
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MEMORY_writemap[i] = CARTRIDGE_BountyBob1PutByte;
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}
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else if (i == 0x5f || i == 0x9f) {
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MEMORY_readmap[i] = CARTRIDGE_BountyBob2GetByte;
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MEMORY_writemap[i] = CARTRIDGE_BountyBob2PutByte;
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}
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else if (i == 0xbf) {
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MEMORY_readmap[i] = CARTRIDGE_5200SuperCartGetByte;
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MEMORY_writemap[i] = CARTRIDGE_5200SuperCartPutByte;
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}
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/* else something's wrong, so we keep current values */
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}
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else {
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MEMORY_readmap[i] = NULL;
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MEMORY_writemap[i] = MEMORY_ROM_PutByte;
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}
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break;
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case MEMORY_HARDWARE:
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switch (i) {
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case 0xc0:
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case 0xd0:
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MEMORY_readmap[i] = GTIA_GetByte;
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MEMORY_writemap[i] = GTIA_PutByte;
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break;
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case 0xd1:
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MEMORY_readmap[i] = PBI_D1GetByte;
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MEMORY_writemap[i] = PBI_D1PutByte;
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break;
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case 0xd2:
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case 0xe8:
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case 0xeb:
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MEMORY_readmap[i] = POKEY_GetByte;
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MEMORY_writemap[i] = POKEY_PutByte;
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break;
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case 0xd3:
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MEMORY_readmap[i] = PIA_GetByte;
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MEMORY_writemap[i] = PIA_PutByte;
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break;
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case 0xd4:
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MEMORY_readmap[i] = ANTIC_GetByte;
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MEMORY_writemap[i] = ANTIC_PutByte;
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break;
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case 0xd5:
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MEMORY_readmap[i] = CARTRIDGE_GetByte;
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MEMORY_writemap[i] = CARTRIDGE_PutByte;
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break;
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case 0xd6:
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MEMORY_readmap[i] = PBI_D6GetByte;
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MEMORY_writemap[i] = PBI_D6PutByte;
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break;
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case 0xd7:
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MEMORY_readmap[i] = PBI_D7GetByte;
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MEMORY_writemap[i] = PBI_D7PutByte;
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break;
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case 0xff:
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if (MEMORY_mosaic_num_banks > 0) MEMORY_writemap[0xff] = MosaicPutByte;
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break;
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case 0xcf:
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if (MEMORY_axlon_num_banks > 0) MEMORY_writemap[0xcf] = AxlonPutByte;
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break;
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case 0x0f:
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if (MEMORY_axlon_num_banks > 0 && MEMORY_axlon_0f_mirror) MEMORY_writemap[0x0f] = AxlonPutByte;
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break;
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default:
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/* something's wrong, so we keep current values */
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break;
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}
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break;
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default:
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/* something's wrong, so we keep current values */
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break;
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}
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}
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}
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#endif
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if (Atari800_machine_type == Atari800_MACHINE_XLXE) {
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if (SaveVerbose)
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Retro_ReadUBYTE(&MEMORY_basic[0], 8192);
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Retro_ReadUBYTE(&under_cartA0BF[0], 8192);
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if (SaveVerbose)
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Retro_ReadUBYTE(&MEMORY_os[0], 16384);
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Retro_ReadUBYTE(&under_atarixl_os[0], 16384);
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if (StateVersion >= 7 && SaveVerbose)
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Retro_ReadUBYTE(MEMORY_xegame, 0x2000);
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}
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if (StateVersion >= 7) {
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/* Read amount of XE RAM in 16KB banks. */
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Retro_ReadINT(&num_xe_banks, 1);
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/* Compute value of MEMORY_ram_size. */
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MEMORY_ram_size = base_ram_kb + num_xe_banks * 16;
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if (MEMORY_ram_size == 320) {
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/* There are 2 different memory mappings for 320 KB. */
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/* In savestate version <= 6 this variable is read in PIA_StateRead. */
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int xe_type;
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Retro_ReadINT(&xe_type, 1);
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MEMORY_ram_size += xe_type;
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}
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if (!MEMORY_SizeValid(MEMORY_ram_size)) {
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MEMORY_ram_size = 64;
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Log_print("Warning: Bad RAM size read in from state save, defaulting to 64 KB");
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}
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/* Read PORTB and set variables that are based on it. */
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Retro_ReadUBYTE(&portb, 1);
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MEMORY_xe_bank = 0;
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if (MEMORY_ram_size > 64 && (portb & 0x30) != 0x30) {
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switch (MEMORY_ram_size) {
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case 128:
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MEMORY_xe_bank = ((portb & 0x0c) >> 2) + 1;
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break;
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case 192:
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MEMORY_xe_bank = (((portb & 0x0c) + ((portb & 0x40) >> 2)) >> 2) + 1;
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break;
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case MEMORY_RAM_320_RAMBO:
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MEMORY_xe_bank = (((portb & 0x0c) + ((portb & 0x60) >> 1)) >> 2) + 1;
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break;
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case MEMORY_RAM_320_COMPY_SHOP:
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MEMORY_xe_bank = (((portb & 0x0c) + ((portb & 0xc0) >> 2)) >> 2) + 1;
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break;
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case 576:
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MEMORY_xe_bank = (((portb & 0x0e) + ((portb & 0x60) >> 1)) >> 1) + 1;
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break;
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case 1088:
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MEMORY_xe_bank = (((portb & 0x0e) + ((portb & 0xe0) >> 1)) >> 1) + 1;
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break;
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}
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}
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/* In savestate version <= 6 this variable is read in PIA_StateRead. */
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MEMORY_selftest_enabled = (portb & 0x81) == 0x01
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&& !((portb & 0x30) != 0x30 && MEMORY_ram_size == MEMORY_RAM_320_COMPY_SHOP)
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&& !((portb & 0x10) == 0 && MEMORY_ram_size == 1088);
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Retro_ReadINT(&MEMORY_cartA0BF_enabled, 1);
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if (Atari800_machine_type == Atari800_MACHINE_XLXE) {
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GTIA_TRIG[3] = MEMORY_cartA0BF_enabled;
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if (MEMORY_cartA0BF_enabled == 0 && (GTIA_GRACTL & 4))
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GTIA_TRIG_latch[3] = 0;
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}
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}
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ANTIC_xe_ptr = NULL;
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AllocXEMemory();
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if (MEMORY_ram_size > 64) {
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Retro_ReadUBYTE(&atarixe_memory[0], atarixe_memory_size);
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/* a hack that makes state files compatible with previous versions:
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for 130 XE there's written 192 KB of unused data */
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if (MEMORY_ram_size == 128 && StateVersion <= 6) {
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UBYTE buffer[256];
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int i;
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for (i = 0; i < 192 * 4; i++)
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Retro_ReadUBYTE(&buffer[0], 256);
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}
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if (StateVersion >= 7 && (MEMORY_ram_size == 128 || MEMORY_ram_size == MEMORY_RAM_320_COMPY_SHOP)) {
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switch (portb & 0x30) {
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case 0x20: /* ANTIC: base, CPU: extended */
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ANTIC_xe_ptr = atarixe_memory;
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break;
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case 0x10: /* ANTIC: extended, CPU: base */
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ANTIC_xe_ptr = atarixe_memory + (MEMORY_xe_bank << 14);
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break;
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default: /* ANTIC same as CPU */
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ANTIC_xe_ptr = NULL;
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break;
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}
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if (ANTIC_xe_ptr != NULL && MEMORY_selftest_enabled)
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/* Also read ANTIC-visible memory shadowed by Self Test. */
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Retro_ReadUBYTE(antic_bank_under_selftest, 0x800);
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}
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}
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/* Simius XL/XE MapRAM expansion */
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if (StateVersion >= 7 && Atari800_machine_type == Atari800_MACHINE_XLXE && MEMORY_ram_size > 20) {
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Retro_ReadINT(&MEMORY_enable_mapram, 1);
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AllocMapRAM();
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if (mapram_memory != NULL) {
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Retro_ReadUBYTE(mapram_memory, 0x800);
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}
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}
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}
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#endif /* __LIBRETRO__ */
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void MEMORY_StateSave(UBYTE SaveVerbose)
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{
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int temp;
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@@ -504,6 +849,10 @@ void MEMORY_StateRead(UBYTE SaveVerbose, UBYTE StateVersion)
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MEMORY_readmap[i] = CARTRIDGE_BountyBob2GetByte;
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MEMORY_writemap[i] = CARTRIDGE_BountyBob2PutByte;
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}
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else if (i == 0xbf) {
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MEMORY_readmap[i] = CARTRIDGE_5200SuperCartGetByte;
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MEMORY_writemap[i] = CARTRIDGE_5200SuperCartPutByte;
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}
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/* else something's wrong, so we keep current values */
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}
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else {
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@@ -1068,13 +1417,16 @@ UBYTE MEMORY_HwGetByte(UWORD addr, int no_side_effects)
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case 0x8f00:
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if (!no_side_effects)
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CARTRIDGE_BountyBob1(addr);
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byte = 0;
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byte = MEMORY_dGetByte(addr);
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break;
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case 0x5f00:
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case 0x9f00:
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if (!no_side_effects)
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CARTRIDGE_BountyBob2(addr);
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byte = 0;
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byte = MEMORY_dGetByte(addr);
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break;
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case 0xbf00:
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byte = CARTRIDGE_5200SuperCartGetByte(addr, no_side_effects);
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break;
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case 0xd000: /* GTIA */
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case 0xc000: /* GTIA - 5200 */
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@@ -1153,6 +1505,9 @@ void MEMORY_HwPutByte(UWORD addr, UBYTE byte)
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case 0x9f00:
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CARTRIDGE_BountyBob2(addr);
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break;
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case 0xbf00:
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CARTRIDGE_5200SuperCartPutByte(addr, byte);
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break;
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case 0xd000: /* GTIA */
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case 0xc000: /* GTIA - 5200 */
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case 0xc100: /* GTIA - 5200 */
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Reference in New Issue
Block a user