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https://github.com/MiSTer-devel/Atari800_MiSTer.git
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610a926f11
* Update sys * Support all 32MB of SDRAM + MegaCart 4MB * Forgotten non-VBXE detail for 32MB --------- Co-authored-by: jackyangantelope <jack@retroremake.co>
32 lines
883 B
C
32 lines
883 B
C
#ifndef MEMORY_H
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#define MEMORY_H
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// #define SRAM_BASE ((void*) 0x200000)
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#define SDRAM_BASE ((void*) 0x2000000)
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// Memory usage...
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// 0x410000-0x44FFFF (0xc10000 in zpu space) = directory cache - 256k
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// 0x450000-0x46FFFF (0xc50000 in zpu space) = freeze backup
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// 0x700000-0x77FFFF (0xf00000 in zpu space) = os rom/basic rom
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#define INIT_MEM
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#define DIR_INIT_MEM (SDRAM_BASE + 0x410000)
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#define DIR_INIT_MEMSIZE 262144
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#define FREEZE_MEM (SDRAM_BASE + 0x450000)
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#define FREEZER_RAM_MEM (SDRAM_BASE + 0x480000)
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#define FREEZER_ROM_MEM (SDRAM_BASE + 0x4A0000)
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#define HAVE_FREEZER_ROM_MEM 1
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#define CARTRIDGE_MEM (SDRAM_BASE + 0x800000)
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// offset into SDRAM Currently not valid
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// #define ROM_OFS 0x700000
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#define atari_regbase ((void*) 0x10000)
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#define atari_regmirror ((void*) 0x20000)
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#define zpu_regbase ((void*) 0x40000)
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#define pokey_regbase ((void*) 0x40400)
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#endif
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