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-added support for mappers 32, 49, 60, 65, 73 and 156
-added soft reset keyboard command ctrl+r
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,167 @@ | ||
| /* | ||
| * Copyright (C) 2017 FIX94 | ||
| * | ||
| * This software may be modified and distributed under the terms | ||
| * of the MIT license. See the LICENSE file for details. | ||
| */ | ||
|
|
||
| #include <stdio.h> | ||
| #include <inttypes.h> | ||
| #include <stdbool.h> | ||
| #include <string.h> | ||
| #include "../ppu.h" | ||
| #include "../mapper.h" | ||
|
|
||
| static uint8_t *m156_prgROM; | ||
| static uint8_t *m156_prgRAM; | ||
| static uint8_t *m156_chrROM; | ||
| static uint32_t m156_prgROMsize; | ||
| static uint32_t m156_prgRAMsize; | ||
| static uint32_t m156_chrROMsize; | ||
| static uint32_t m156_prgROMand; | ||
| static uint32_t m156_prgRAMand; | ||
| static uint32_t m156_chrROMand; | ||
| static uint32_t m156_curPRGBank; | ||
| static uint32_t m156_lastPRGBank; | ||
| static uint32_t m156_CHRBank[8]; | ||
|
|
||
| void m156init(uint8_t *prgROMin, uint32_t prgROMsizeIn, | ||
| uint8_t *prgRAMin, uint32_t prgRAMsizeIn, | ||
| uint8_t *chrROMin, uint32_t chrROMsizeIn) | ||
| { | ||
| m156_prgROM = prgROMin; | ||
| m156_prgROMsize = prgROMsizeIn; | ||
| m156_prgROMand = mapperGetAndValue(prgROMsizeIn); | ||
| m156_prgRAM = prgRAMin; | ||
| m156_prgRAMsize = prgRAMsizeIn; | ||
| m156_prgRAMand = mapperGetAndValue(prgRAMsizeIn); | ||
| m156_curPRGBank = 0; | ||
| m156_lastPRGBank = (prgROMsizeIn - 0x4000); | ||
| if(chrROMsizeIn > 0) | ||
| { | ||
| m156_chrROM = chrROMin; | ||
| m156_chrROMsize = chrROMsizeIn; | ||
| m156_chrROMand = mapperGetAndValue(chrROMsizeIn); | ||
| } | ||
| else | ||
| printf("m156???\n"); | ||
| memset(m156_CHRBank,0,8*sizeof(uint32_t)); | ||
| ppuSetNameTblSingleLower(); //seems to be default state? | ||
| printf("Mapper 156 inited\n"); | ||
| } | ||
|
|
||
| uint8_t m156get8(uint16_t addr, uint8_t val) | ||
| { | ||
| if(addr >= 0x6000 && addr < 0x8000) | ||
| return m156_prgRAM[addr&0x1FFF]; | ||
| else if(addr >= 0x8000) | ||
| { | ||
| if(addr < 0xC000) | ||
| return m156_prgROM[((m156_curPRGBank<<14)+(addr&0x3FFF))&m156_prgROMand]; | ||
| return m156_prgROM[(m156_lastPRGBank+(addr&0x3FFF))&m156_prgROMand]; | ||
| } | ||
| return val; | ||
| } | ||
|
|
||
| void m156set8(uint16_t addr, uint8_t val) | ||
| { | ||
| if(addr >= 0x6000 && addr < 0x8000) | ||
| { | ||
| //printf("m156set8 %04x %02x\n", addr, val); | ||
| m156_prgRAM[addr&0x1FFF] = val; | ||
| } | ||
| else if(addr >= 0xC000 && addr < 0xC020) | ||
| { | ||
| switch(addr&0x1F) | ||
| { | ||
| case 0x0: | ||
| m156_CHRBank[0] = (m156_CHRBank[0]&0xFF00)|val; | ||
| break; | ||
| case 0x1: | ||
| m156_CHRBank[1] = (m156_CHRBank[1]&0xFF00)|val; | ||
| break; | ||
| case 0x2: | ||
| m156_CHRBank[2] = (m156_CHRBank[2]&0xFF00)|val; | ||
| break; | ||
| case 0x3: | ||
| m156_CHRBank[3] = (m156_CHRBank[3]&0xFF00)|val; | ||
| break; | ||
| case 0x4: | ||
| m156_CHRBank[0] = (m156_CHRBank[0]&0xFF)|(val<<8); | ||
| break; | ||
| case 0x5: | ||
| m156_CHRBank[1] = (m156_CHRBank[1]&0xFF)|(val<<8); | ||
| break; | ||
| case 0x6: | ||
| m156_CHRBank[2] = (m156_CHRBank[2]&0xFF)|(val<<8); | ||
| break; | ||
| case 0x7: | ||
| m156_CHRBank[3] = (m156_CHRBank[3]&0xFF)|(val<<8); | ||
| break; | ||
| case 0x8: | ||
| m156_CHRBank[4] = (m156_CHRBank[4]&0xFF00)|val; | ||
| break; | ||
| case 0x9: | ||
| m156_CHRBank[5] = (m156_CHRBank[5]&0xFF00)|val; | ||
| break; | ||
| case 0xA: | ||
| m156_CHRBank[6] = (m156_CHRBank[6]&0xFF00)|val; | ||
| break; | ||
| case 0xB: | ||
| m156_CHRBank[7] = (m156_CHRBank[7]&0xFF00)|val; | ||
| break; | ||
| case 0xC: | ||
| m156_CHRBank[4] = (m156_CHRBank[4]&0xFF)|(val<<8); | ||
| break; | ||
| case 0xD: | ||
| m156_CHRBank[5] = (m156_CHRBank[5]&0xFF)|(val<<8); | ||
| break; | ||
| case 0xE: | ||
| m156_CHRBank[6] = (m156_CHRBank[6]&0xFF)|(val<<8); | ||
| break; | ||
| case 0xF: | ||
| m156_CHRBank[7] = (m156_CHRBank[7]&0xFF)|(val<<8); | ||
| break; | ||
| case 0x10: | ||
| m156_curPRGBank = val; | ||
| break; | ||
| case 0x14: | ||
| if(val&1) | ||
| ppuSetNameTblHorizontal(); | ||
| else | ||
| ppuSetNameTblVertical(); | ||
| break; | ||
| default: | ||
| break; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| uint8_t m156chrGet8(uint16_t addr) | ||
| { | ||
| //printf("%04x\n",addr); | ||
| addr &= 0x1FFF; | ||
| if(addr < 0x400) | ||
| return m156_chrROM[((m156_CHRBank[0]<<10)+(addr&0x3FF))&m156_chrROMand]; | ||
| else if(addr < 0x800) | ||
| return m156_chrROM[((m156_CHRBank[1]<<10)+(addr&0x3FF))&m156_chrROMand]; | ||
| else if(addr < 0xC00) | ||
| return m156_chrROM[((m156_CHRBank[2]<<10)+(addr&0x3FF))&m156_chrROMand]; | ||
| else if(addr < 0x1000) | ||
| return m156_chrROM[((m156_CHRBank[3]<<10)+(addr&0x3FF))&m156_chrROMand]; | ||
| else if(addr < 0x1400) | ||
| return m156_chrROM[((m156_CHRBank[4]<<10)+(addr&0x3FF))&m156_chrROMand]; | ||
| else if(addr < 0x1800) | ||
| return m156_chrROM[((m156_CHRBank[5]<<10)+(addr&0x3FF))&m156_chrROMand]; | ||
| else if(addr < 0x1C00) | ||
| return m156_chrROM[((m156_CHRBank[6]<<10)+(addr&0x3FF))&m156_chrROMand]; | ||
| return m156_chrROM[((m156_CHRBank[7]<<10)+(addr&0x3FF))&m156_chrROMand]; | ||
| } | ||
|
|
||
| void m156chrSet8(uint16_t addr, uint8_t val) | ||
| { | ||
| //printf("m156chrSet8 %04x %02x\n", addr, val); | ||
| (void)addr; | ||
| (void)val; | ||
| } | ||
|
|
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