2022-12-30 23:56:50 +01:00
|
|
|
/* FCE Ultra - NES/Famicom Emulator
|
|
|
|
|
*
|
|
|
|
|
* Copyright notice for this file:
|
|
|
|
|
* Copyright (C) 2022 NewRisingSun
|
|
|
|
|
*
|
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
|
* it under the terms of the GNU General Public License as published by
|
|
|
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
* (at your option) any later version.
|
2023-01-03 01:01:38 +01:00
|
|
|
*
|
2022-12-30 23:56:50 +01:00
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
* GNU General Public License for more details.
|
|
|
|
|
*
|
|
|
|
|
* 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
|
|
|
|
|
*/
|
|
|
|
|
|
2023-01-03 01:01:38 +01:00
|
|
|
/* BlazePro CPLD-based multicarts
|
2022-12-30 23:56:50 +01:00
|
|
|
|
|
|
|
|
Unsolved issue: how is CHR RAM write-protection triggered?
|
2023-01-03 01:01:38 +01:00
|
|
|
|
|
|
|
|
Known problems:
|
|
|
|
|
|
|
|
|
|
Forever Duo of NES 852-in-1 (rev1):
|
|
|
|
|
#A370 Time Lord: Hangs with glitchy status bar on NTSC and PAL but not Dendy
|
|
|
|
|
#A133 Galactic Crusader: Wrong mirroring
|
|
|
|
|
#A249 Mission Cobra: Wrong mirroring
|
|
|
|
|
|
|
|
|
|
Legendary Games of NES 509-in-1:
|
|
|
|
|
#189 Huang Di Battle of Zhuolu: Wrong mirroring during intro
|
|
|
|
|
#227 Kid Niki Niki 2: Title screen animation flickers and looks strange
|
|
|
|
|
#234 Klax: Screen in wrong position during options screen
|
|
|
|
|
#365 Rocman X: Graphical garbage in waterfall (middle) level
|
|
|
|
|
#403 Star Wars: Blank tiles due to lack of CHR RAM write-protection
|
|
|
|
|
#404 The Empire Strikes Back: Blank tiles due to lack of CHR RAM write-protection
|
|
|
|
|
#460 Twin Dragons: Wrong mirroring
|
|
|
|
|
|
|
|
|
|
Unlicensed Collection 142-in-1:
|
|
|
|
|
#59 Huang Di: Wrong mirroring during intro
|
|
|
|
|
#84 Ms. Pac-Man: Wrong mirroring
|
|
|
|
|
#102 Rocman X: Graphical garbage in waterfall (middle) level
|
|
|
|
|
#132 Trolls on Treasure Island: Wrong mirroring during map
|
|
|
|
|
|
|
|
|
|
Unreleased Collection 73-in-1 (v1.01):
|
|
|
|
|
#38 Holy Diver: Wrong mirroring during first scene
|
2022-12-30 23:56:50 +01:00
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include "mapinc.h"
|
|
|
|
|
#include "state.h"
|
|
|
|
|
|
|
|
|
|
static uint8 submapper;
|
2023-02-09 06:14:43 +00:00
|
|
|
static uint8 eeprom[16], eep_clock, state, command, output; /* Some strange serial EEPROM */
|
2022-12-30 23:56:50 +01:00
|
|
|
static uint8 *WRAM;
|
|
|
|
|
static uint32 WRAMSIZE;
|
|
|
|
|
|
|
|
|
|
static int prevSFEXINDEX;
|
|
|
|
|
extern int SFEXINDEX;
|
|
|
|
|
extern SFORMAT SFMDATA[64];
|
|
|
|
|
|
|
|
|
|
static uint8 mapper; /* 5700 MSB >>4 OR'd with submapper <<4 */
|
|
|
|
|
static uint8 mapperFlags; /* 5700 LSB */
|
|
|
|
|
static uint8 misc; /* 5601 */
|
|
|
|
|
static uint8 misc2; /* 5702 */
|
|
|
|
|
static void (*sync)();
|
|
|
|
|
|
|
|
|
|
static uint16 prgOR;
|
|
|
|
|
static uint8 prgAND;
|
|
|
|
|
|
|
|
|
|
static uint8 regByte[16];
|
|
|
|
|
static int16 regWord[9];
|
|
|
|
|
|
|
|
|
|
#include "468_mmc1.h"
|
|
|
|
|
#include "468_mmc24.h"
|
|
|
|
|
#include "468_mmc3.h"
|
|
|
|
|
#include "468_vrc1.h"
|
|
|
|
|
#include "468_vrc24.h"
|
|
|
|
|
#include "468_vrc3.h"
|
|
|
|
|
#include "468_vrc6.h"
|
|
|
|
|
#include "468_vrc7.h"
|
|
|
|
|
#include "468_fme7.h"
|
|
|
|
|
#include "468_discrete.h"
|
|
|
|
|
#include "468_cnrom.h"
|
|
|
|
|
#include "468_if12.h"
|
|
|
|
|
#include "468_lf36.h"
|
|
|
|
|
#include "468_nanjing.h"
|
|
|
|
|
|
|
|
|
|
static SFORMAT stateRegs[] = {
|
|
|
|
|
{ &mapper, 1, "SUP0" },
|
|
|
|
|
{ &mapperFlags, 1, "SUP1" },
|
|
|
|
|
{ &misc, 1, "SUP2" },
|
|
|
|
|
{ &misc2, 1, "SUP3" },
|
|
|
|
|
{ &prgOR, 2, "SUP4" },
|
|
|
|
|
{ &prgAND, 1, "SUP5" },
|
|
|
|
|
{ eeprom, 16,"EEPR" },
|
2023-02-09 06:18:06 +00:00
|
|
|
{ &eep_clock, 1, "EEP0" },
|
2022-12-30 23:56:50 +01:00
|
|
|
{ &state, 1, "EEP1" },
|
|
|
|
|
{ &command, 1, "EEP2" },
|
|
|
|
|
{ &output, 1, "EEP3" },
|
|
|
|
|
{ regByte, 16,"REGB" },
|
|
|
|
|
{ regWord, 16,"REGW" },
|
|
|
|
|
{ 0 }
|
|
|
|
|
};
|
|
|
|
|
|
2023-01-03 01:01:38 +01:00
|
|
|
static const uint16 lut509[512] ={ /* Strange look-up table, used only by Legendary Games of NES 509-in-1 */
|
|
|
|
|
7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46,
|
|
|
|
|
47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 0, 1, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84,
|
|
|
|
|
85, 86, 87, 88, 89, 90, 4, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123,
|
|
|
|
|
124, 125, 126, 127, 128, 129, 2, 3, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 5, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160,
|
|
|
|
|
161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200,
|
|
|
|
|
201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 238, 239, 240, 241,
|
|
|
|
|
242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 256, 6, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281,
|
|
|
|
|
282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321,
|
|
|
|
|
322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362,
|
|
|
|
|
363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402,
|
|
|
|
|
403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442,
|
|
|
|
|
443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482,
|
|
|
|
|
483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 512, 513, 514, 515, 516, 517
|
|
|
|
|
};
|
|
|
|
|
|
2022-12-30 23:56:50 +01:00
|
|
|
void setPins(uint8 select, uint8 newClock, uint8 newData) { /* Serial EEPROM */
|
|
|
|
|
if (select)
|
|
|
|
|
state =0;
|
|
|
|
|
else
|
2023-02-09 06:14:43 +00:00
|
|
|
if (!eep_clock && !!newClock) {
|
2022-12-30 23:56:50 +01:00
|
|
|
if (state <8) {
|
2023-01-03 01:01:38 +01:00
|
|
|
command =command <<1 | !!(newData)*1;
|
2022-12-30 23:56:50 +01:00
|
|
|
if (++state ==8 && (command &0xF0) !=0x50 && (command &0xF0) !=0xA0) state =0;
|
|
|
|
|
} else {
|
|
|
|
|
int mask =1 <<(15 -state);
|
|
|
|
|
int address =command &0x0F;
|
2023-01-03 01:01:38 +01:00
|
|
|
if ((command &0xF0) ==0xA0) {
|
|
|
|
|
eeprom[address] =eeprom[address] &~mask | !!(newData)*mask;
|
|
|
|
|
/* The "write" command also silently returns the content of a strange lookup table */
|
|
|
|
|
output =!!(lut509[eeprom[0] | eeprom[1] | eeprom[2] <<8 &0x1FF] >>(address &1? 0: 8) &mask);
|
|
|
|
|
} else
|
2022-12-30 23:56:50 +01:00
|
|
|
if ((command &0xF0) ==0x50)
|
|
|
|
|
output =!!(eeprom[address] &mask);
|
|
|
|
|
|
|
|
|
|
if (++state ==16) state =0;
|
|
|
|
|
}
|
|
|
|
|
}
|
2023-02-09 06:14:43 +00:00
|
|
|
eep_clock =newClock;
|
2022-12-30 23:56:50 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static DECLFR(readReg);
|
|
|
|
|
static DECLFW(writeReg);
|
|
|
|
|
static void setMapper(uint8 clearRegs) {
|
|
|
|
|
int i;
|
|
|
|
|
if (clearRegs) {
|
|
|
|
|
for (i =0; i <16; i++) regByte[i] =0;
|
|
|
|
|
for (i =0; i < 8; i++) regWord[i] =0;
|
|
|
|
|
X6502_IRQEnd(FCEU_IQEXT);
|
|
|
|
|
}
|
|
|
|
|
SetReadHandler(0x5000, 0x5FFF, readReg);
|
|
|
|
|
SetReadHandler(0x6000, 0xFFFF, CartBR);
|
|
|
|
|
SetWriteHandler(0x5000, 0x5FFF, writeReg);
|
|
|
|
|
SetWriteHandler(0x6000, 0xFFFF, CartBW);
|
|
|
|
|
MapIRQHook = NULL;
|
|
|
|
|
PPU_hook = NULL;
|
|
|
|
|
GameHBIRQHook = NULL;
|
|
|
|
|
setprg8r(0x10, 0x6000, 0);
|
|
|
|
|
|
|
|
|
|
switch(mapper) { /* 5700 MSB >>4 OR'd with submapper <<4 */
|
|
|
|
|
case 0x00: case 0x01: case 0x32: MMC1_reset(clearRegs); break;
|
|
|
|
|
case 0x0A: MMC2_reset(clearRegs); break;
|
|
|
|
|
case 0x10: case 0x11: case 0x12: MMC3_reset(clearRegs); break;
|
|
|
|
|
case 0x08: MMC4_reset(clearRegs); break;
|
|
|
|
|
case 0x40: VRC1_reset(clearRegs); break;
|
|
|
|
|
case 0x20: case 0x21: case 0x22: case 0x23: VRC24_reset(clearRegs); break;
|
|
|
|
|
case 0x44: VRC3_reset(clearRegs); break;
|
|
|
|
|
case 0x30: case 0x31: VRC6_reset(clearRegs); break;
|
|
|
|
|
case 0x41: VRC7_reset(clearRegs); break;
|
|
|
|
|
case 0x07: LF36_reset(clearRegs); break;
|
|
|
|
|
case 0x50: FME7_reset(clearRegs); break;
|
|
|
|
|
case 0x0E: case 0x1E: NANJING_reset(clearRegs); break;
|
|
|
|
|
case 0x09: case 0x0B: case 0x17: case 0x37: UNROM_IF12_reset(clearRegs); break;
|
|
|
|
|
case 0x04: case 0x06: case 0x14: case 0x16: ANROM_BNROM_reset(clearRegs); break;
|
|
|
|
|
case 0x05: case 0x15: CNROM_BF9097_reset(clearRegs); break;
|
|
|
|
|
case 0x0C: case 0x0D: case 0x1C: case 0x1D: GNROM_reset(clearRegs); break;
|
|
|
|
|
default: break;
|
|
|
|
|
}
|
|
|
|
|
sync();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static DECLFR(readReg) {
|
|
|
|
|
switch(A) {
|
|
|
|
|
case 0x5301: case 0x5601:
|
|
|
|
|
return output? 0x80: 0x00;
|
|
|
|
|
default:
|
|
|
|
|
return 0xFF;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static DECLFW(writeReg) {
|
|
|
|
|
switch(A) {
|
|
|
|
|
case 0x5301:
|
|
|
|
|
if (submapper ==0) setPins(!!(V &0x04), !!(V &0x02), !!(V &0x01));
|
|
|
|
|
break;
|
|
|
|
|
case 0x5601:
|
|
|
|
|
if (~misc &0x80) {
|
|
|
|
|
misc =V;
|
2023-01-03 01:01:38 +01:00
|
|
|
if (submapper !=1) {
|
|
|
|
|
prgOR =prgOR &~0x2000 | V <<9 &0x2000;
|
|
|
|
|
sync();
|
|
|
|
|
}
|
2022-12-30 23:56:50 +01:00
|
|
|
}
|
|
|
|
|
if (submapper ==1) setPins(!!(V &0x10), !!(V &0x02), !!(V &0x01));
|
|
|
|
|
break;
|
|
|
|
|
case 0x5700:
|
|
|
|
|
mapper =V >>4 | submapper <<4;
|
|
|
|
|
mapperFlags =V &0xF;
|
|
|
|
|
prgOR =prgOR &~0x0010 | V <<4 &0x0010;
|
|
|
|
|
setMapper(1);
|
|
|
|
|
break;
|
|
|
|
|
case 0x5701:
|
|
|
|
|
prgOR =prgOR &~0x1FE0 | V <<5 &0x1FE0;
|
|
|
|
|
sync();
|
|
|
|
|
break;
|
|
|
|
|
case 0x5702:
|
|
|
|
|
if (submapper ==1) {
|
|
|
|
|
misc2 =V;
|
2023-01-03 01:01:38 +01:00
|
|
|
prgOR =prgOR &~0x2000 | V <<9 &0x2000;
|
|
|
|
|
setMapper(0); /* The misc2 value is required for prgAND by MMC3 and UNROM */
|
2022-12-30 23:56:50 +01:00
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void reset(void) {
|
|
|
|
|
mapper =submapper <<4;
|
|
|
|
|
mapperFlags =0x0F;
|
|
|
|
|
misc =0;
|
2023-01-03 01:01:38 +01:00
|
|
|
misc2 =0;
|
2022-12-30 23:56:50 +01:00
|
|
|
prgOR =0x7FF0;
|
2023-02-09 06:14:43 +00:00
|
|
|
eep_clock =command =output =1;
|
2022-12-30 23:56:50 +01:00
|
|
|
command =state =0;
|
|
|
|
|
setMapper(1);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void power(void) {
|
|
|
|
|
int i;
|
|
|
|
|
for (i =0; i <16; i++) eeprom[i] =0;
|
|
|
|
|
reset();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void close(void) {
|
|
|
|
|
if (WRAM)
|
|
|
|
|
FCEU_gfree(WRAM);
|
|
|
|
|
WRAM = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void stateRestore(int version) {
|
|
|
|
|
setMapper(0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void Mapper468_Init(CartInfo *info) {
|
|
|
|
|
submapper =info->submapper;
|
|
|
|
|
info->Reset =reset;
|
|
|
|
|
info->Power =power;
|
|
|
|
|
info->Close =close;
|
|
|
|
|
GameStateRestore =stateRestore;
|
|
|
|
|
|
|
|
|
|
WRAMSIZE =8192;
|
|
|
|
|
WRAM =(uint8*) FCEU_gmalloc(WRAMSIZE);
|
|
|
|
|
SetupCartPRGMapping(0x10, WRAM, WRAMSIZE, 1);
|
|
|
|
|
AddExState(WRAM, WRAMSIZE, 0, "WRAM");
|
|
|
|
|
AddExState(stateRegs, ~0, 0, 0);
|
|
|
|
|
prevSFEXINDEX =SFEXINDEX;
|
|
|
|
|
}
|
