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Copy the Atari memory map for Amiga.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38916 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
François Revol
2010-10-10 09:23:09 +00:00
parent 08af89feda
commit 12760a5cc9
1 changed files with 77 additions and 0 deletions
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src/system/boot/platform/amiga_m68k/amiga_memory_map.h
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/*
* Copyright 2008, François Revol, [email protected]. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef AMIGA_MEMORY_MAP_H
#define AMIGA_MEMORY_MAP_H
/* the DMA-accessible RAM */
/*#define AMIGA_CHIPRAM_BASE 0x00000000*/
/* actually, the first 2kB aren't usable */
#define AMIGA_CHIPRAM_BASE 0x00001000
#define AMIGA_CHIPRAM_MAX 0x00e00000
#define AMIGA_CHIPRAM_LAST \
(AMIGA_CHIPRAM_BASE + (AMIGA_CHIPRAM_MAX - 1))
#define AMIGA_TOSROM_BASE 0x00e00000
#define AMIGA_TOSROM_MAX 0x00100000
#define AMIGA_TOSROM_LAST \
(AMIGA_TOSROM_BASE + (AMIGA_TOSROM_MAX - 1))
/* some reserved ST I/O there... */
/* cartridge ROM */
#define AMIGA_CARTROM_BASE 0x00fa0000
#define AMIGA_CARTROM_MAX 0x00020000
#define AMIGA_CARTROM_LAST \
(AMIGA_CARTROM_BASE + (AMIGA_CARTROM_MAX - 1))
#define AMIGA_SYSROM_BASE 0x00fc0000
#define AMIGA_SYSROM_MAX 0x00030000
#define AMIGA_SYSROM_LAST \
(AMIGA_SYSROM_BASE + (AMIGA_SYSROM_MAX - 1))
/* more ST I/O there... */
/* the fast, non-DMA-accessible RAM */
#define AMIGA_FASTRAM_BASE 0x01000000
// max on TT,
// but there is nothing beyond until SHADOW_BASE
//#define AMIGA_FASTRAM_MAX 0x00400000
#define AMIGA_FASTRAM_MAX 0xfe000000
#define AMIGA_FASTRAM_LAST \
(AMIGA_FASTRAM_BASE + (AMIGA_FASTRAM_MAX - 1))
/* due to ST legacy (24 bit addressing), IO is actually there */
#define AMIGA_SHADOW_BASE 0xff000000
#define AMIGA_IO_BASE (AMIGA_SHADOW_BASE + 0x00f00000)
#define AMIGA_IO_MAX 0x00100000
#define AMIGA_IO_LAST \
(AMIGA_IO_BASE + (AMIGA_IO_MAX - 1))
/* physical memory layout as used by the bootloader */
//#define AMIGA_ZBEOS_STACK_BASE 0x00040000
#define AMIGA_ZBEOS_STACK_BASE 0x00060000
#define AMIGA_ZBEOS_STACK_END 0x00080000
/* from .prg shell.S will copy itself there
* must stay in sync with src/system/ldscripts/m68k/boot_prg_amiga_m68k.ld
*/
#define AMIGA_ZBEOS_BASE 0x00080000
#define AMIGA_ZBEOS_MAX 0x00080000
#define AMIGA_ZBEOS_LAST \
(AMIGA_ZBEOS_BASE + (AMIGA_ZBEOS_MAX - 1))
#define AMIGA_STRAM_VIRT_BASE
#endif /* AMIGA_MEMORY_MAP_H */