Revision 371
Added by markw over 10 years ago
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#ifndef MEMORY_H
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#define MEMORY_H
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//1024k memory map
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//(up to 576k atari mem)
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//----
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//64k (base)
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//64-127 (64k)= freeze backup
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//128k-255k=freezer ram (128k)
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//256k-415k=carts (160k)
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//288k-415k=dir cache (128k/shared)
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//416k-447k=os rom/ram (32k)
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//448k-511k=freezer rom
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//512-1023 (512k ext)
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#define SRAM_BASE ((void*) 0x200000)
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#define SDRAM_BASE ((void*) 0x800000)
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// Memory usage...
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// 0x90000-0x9FFFF (0x890000 in zpu space) = directory cache - 64k
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// 0xA0000-0xBFFFF (0x8a0000 in zpu space) = freeze backup
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// 0xC0000-0xDFFFF (0x8c0000 in zpu space) = os rom/basic rom
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// 0x10000-0x1FFFF (0x810000 in zpu space) = freeze backup - 64k
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// 0x20000-0x3FFFF (0x820000 in zpu space) = freezer ram (128k)
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// 0x40000-0x67FFF (0x840000 in zpu space) = carts - 160k
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// 0x48000-0x67FFF (0x848000 in zpu space) = directory cache - 128k
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// 0x68000-0x6FFFF (0x868000 in zpu space) = os rom/basic rom - 32k
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// 0x70000-0x7FFFF (0x870000 in zpu space) = freezer rom (64k)
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#define INIT_MEM
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#define DIR_INIT_MEM (SDRAM_BASE + 0x90000)
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#define DIR_INIT_MEMSIZE 65536
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#define FREEZE_MEM (SDRAM_BASE + 0xa0000)
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#define DIR_INIT_MEM (SDRAM_BASE + 0x48000)
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#define DIR_INIT_MEMSIZE 131072
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#define FREEZE_MEM (SDRAM_BASE + 0x10000)
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#define FREEZER_RAM_MEM (SDRAM_BASE + 0x20000)
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#define FREEZER_ROM_MEM (SDRAM_BASE + 0x70000)
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#define HAVE_FREEZER_ROM_MEM 1
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// disabled
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#define CARTRIDGE_MEM ((void*) 0)
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#define CARTRIDGE_MEM (SDRAM_BASE + 0x40000) // Share with dir cache, long carts will be wired by dir listing
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// offset in SDRAM area
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#define ROM_OFS 0xc0000
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#define ROM_OFS 0x68000
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#define atari_regbase ((void*) 0x10000)
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Also available in: Unified diff
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