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/* | ||
* Copyright (C) 2010-2023 Fabio Cavallo (aka FHorse) | ||
* | ||
* 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. | ||
* | ||
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
*/ | ||
|
||
#include <string.h> | ||
#include "mappers.h" | ||
#include "save_slot.h" | ||
|
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INLINE static void prg_fix_354(void); | ||
INLINE static void chr_fix_354(void); | ||
INLINE static void wram_fix_354(void); | ||
INLINE static void mirroring_fix_354(void); | ||
|
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struct _m354 { | ||
WORD reg[2]; | ||
} m354; | ||
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void map_init_354(void) { | ||
EXTCL_AFTER_MAPPER_INIT(354); | ||
EXTCL_CPU_WR_MEM(354); | ||
EXTCL_SAVE_MAPPER(354); | ||
map_internal_struct_init((BYTE *)&m354, sizeof(m354)); | ||
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memset(&m354, 0x00, sizeof(m354)); | ||
} | ||
void extcl_after_mapper_init_354(void) { | ||
prg_fix_354(); | ||
chr_fix_354(); | ||
wram_fix_354(); | ||
mirroring_fix_354(); | ||
} | ||
void extcl_cpu_wr_mem_354(UNUSED(BYTE nidx), WORD address, BYTE value) { | ||
if (address >= (info.mapper.submapper == 0 ? 0xF000 : 0xE000)) { | ||
m354.reg[0] = address; | ||
m354.reg[1] = value; | ||
prg_fix_354(); | ||
chr_fix_354(); | ||
wram_fix_354(); | ||
mirroring_fix_354(); | ||
} | ||
} | ||
BYTE extcl_save_mapper_354(BYTE mode, BYTE slot, FILE *fp) { | ||
save_slot_ele(mode, slot, m354.reg); | ||
return (EXIT_OK); | ||
} | ||
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INLINE static void prg_fix_354(void) { | ||
DBWORD bank = ((m354.reg[0] & 0x1000) >> 5) | ((m354.reg[0] & 0x10) << 2) | (m354.reg[1] & 0x3F); | ||
|
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switch (m354.reg[0] & 0x07) { | ||
default: | ||
case 0: | ||
case 4: | ||
memmap_auto_32k(0, MMCPU(0x8000), (bank >> 1)); | ||
break; | ||
case 1: | ||
memmap_auto_16k(0, MMCPU(0x8000), bank); | ||
memmap_auto_16k(0, MMCPU(0xC000), (bank | 0x07)); | ||
break; | ||
case 2: | ||
case 6: | ||
memmap_auto_8k(0, MMCPU(0x8000), ((bank << 1) | (m354.reg[1] >> 7))); | ||
memmap_auto_8k(0, MMCPU(0xA000), ((bank << 1) | (m354.reg[1] >> 7))); | ||
memmap_auto_8k(0, MMCPU(0xC000), ((bank << 1) | (m354.reg[1] >> 7))); | ||
memmap_auto_8k(0, MMCPU(0xE000), ((bank << 1) | (m354.reg[1] >> 7))); | ||
break; | ||
case 3: | ||
case 7: | ||
memmap_auto_16k(0, MMCPU(0x8000), bank); | ||
memmap_auto_16k(0, MMCPU(0xC000), bank); | ||
break; | ||
case 5: | ||
memmap_auto_32k(0, MMCPU(0x8000), ((bank >> 1) | 0x03)); | ||
break; | ||
} | ||
} | ||
INLINE static void chr_fix_354(void) { | ||
BYTE enabled = !(m354.reg[0] & 0x08); | ||
|
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memmap_auto_wp_8k(0, MMPPU(0x0000), 0, TRUE, enabled); | ||
} | ||
INLINE static void wram_fix_354(void) { | ||
DBWORD bank = ((m354.reg[0] & 0x1000) >> 5) | ((m354.reg[0] & 0x10) << 2) | (m354.reg[1] & 0x3F); | ||
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if ((m354.reg[0] & 0x0007) == 5) { | ||
memmap_prgrom_8k(0, MMCPU(0x6000), ((bank << 1) | (m354.reg[1] >> 7))); | ||
} else { | ||
memmap_disable_8k(0, MMCPU(0x6000)); | ||
} | ||
} | ||
INLINE static void mirroring_fix_354(void) { | ||
if (m354.reg[1] & 0x40) { | ||
mirroring_H(0); | ||
} else { | ||
mirroring_V(0); | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,29 @@ | ||
/* | ||
* Copyright (C) 2010-2023 Fabio Cavallo (aka FHorse) | ||
* | ||
* 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. | ||
* | ||
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
*/ | ||
|
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#ifndef MAPPER_354_H_ | ||
#define MAPPER_354_H_ | ||
|
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#include "common.h" | ||
|
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void map_init_354(void); | ||
void extcl_after_mapper_init_354(void); | ||
void extcl_cpu_wr_mem_354(BYTE nidx, WORD address, BYTE value); | ||
BYTE extcl_save_mapper_354(BYTE mode, BYTE slot, FILE *fp); | ||
|
||
#endif /* MAPPER_354_H_ */ |
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