forked from KolibriOS/kolibrios
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
#ifndef MEM_H_
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#define MEM_H_
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//// ////
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// Z80 MEMORYMAP //
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//// ////
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/*
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* 0x0000-0x3fff: Z80 RAM
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* 0000-1FFFh : RAM
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* 2000-3FFFh : RAM (mirror)
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*/
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#define Z80_RAM_START 0x0000
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#define Z80_RAM_END 0x3fff
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/*
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* 0x4000-0x5fff: YM2612
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* The YM2612 has two address lines, so it is available at 4000-4003h and
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* is mirrored repeatedly up to 5FFFh.
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*/
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#define YM2612_RAM_START 0x4000
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#define YM2612_RAM_END 0x5fff
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/* 0x6000-0x6fff: bank register */
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#define BANK_RAM_START 0x6000
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#define BANK_RAM_END 0x6fff
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/* 0x7000-0x7fff: PSG/VDP */
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#define PSGVDP_RAM_START 0x7000
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#define PSGVDP_RAM_END 0x7fff
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/* 0x8000-0xffff: M68K bank */
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#define M68K_RAM_START 0x8000
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#define M68K_RAM_END 0xffff
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//// ////
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// m68K MEMORYMAP //
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//// ////
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/* 0x000000-0x7fffff: Rom */
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#define M68K_ROM_START 0x000000
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#define M68K_ROM_END 0x7fffff
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/* 0x800000-0x9fffff: empty area1 */
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#define M68K_EMPTY1_START 0x800000
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#define M68K_EMPTY1_END 0x9fffff
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/* 0xa00000-0xafffff: system I/O and control */
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#define M68K_IO_START 0xa00000
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#define M68K_IO_END 0xafffff
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/* 0xb00000-0xbfffff: empty area */
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#define M68K_EMPTY2_START 0xb00000
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#define M68K_EMPTY2_END 0xbfffff
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/* 0xc00000-0xdfffff: VDP/PSG */
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#define M68K_VDP_START 0xc00000
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#define M68K_VDP_END 0xdfffff
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#endif
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