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114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
#ifndef _RAMROM_H
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#define _RAMROM_H
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/**************************************************************************
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* *
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* Copyright (C) 1994, Silicon Graphics, Inc. *
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* *
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* These coded instructions, statements, and computer programs contain *
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* unpublished proprietary information of Silicon Graphics, Inc., and *
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* are protected by Federal copyright law. They may not be disclosed *
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* to third parties or copied or duplicated in any form, in whole or *
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* in part, without the prior written consent of Silicon Graphics, Inc. *
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* *
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**************************************************************************/
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/**************************************************************************
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*
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* $Revision: 1.20 $
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* $Date: 1997/02/11 08:26:47 $
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* $Source: /hosts/gate3/exdisk2/cvs/N64OS/Master/cvsmdev2/PR/include/ramrom.h,v $
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*
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**************************************************************************/
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/*
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* Defines for the GIO card in the Nintendo Development Station
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*
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* The RAM on the GIO card acts as ROM for the game
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* Interrupts available between the game and the Indy host
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*
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* The last part of the ramrom is used for communication between
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* game and host. There are 6 4K buffers defined:
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* log, printf, rmon to indy, rmon from indy, app to indy, app from indy
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* The last 8 bytes of the buffer are used in the emulator environment
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*/
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#define RAMROM_SIZE (0x1000000)
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#define RAMROM_BUF_SIZE (4096)
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#define RAMROM_MSG_SIZE (RAMROM_BUF_SIZE*6)
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#define RAMROM_MSG_ADDR (RAMROM_SIZE - RAMROM_MSG_SIZE)
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#define RAMROM_MSG_HDR_SIZE (3*4) // TODO: Used to be (3*sizeof(long))
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#define RAMROM_USER_DATA_SIZE (RAMROM_MSG_SIZE-RAMROM_MSG_HDR_SIZE)
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#define RAMROM_APP_READ_ADDR (RAMROM_MSG_ADDR + (0*RAMROM_BUF_SIZE))
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#define RAMROM_APP_WRITE_ADDR (RAMROM_MSG_ADDR + (1*RAMROM_BUF_SIZE))
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#define RAMROM_RMON_READ_ADDR (RAMROM_MSG_ADDR + (2*RAMROM_BUF_SIZE))
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#define RAMROM_RMON_WRITE_ADDR (RAMROM_MSG_ADDR + (3*RAMROM_BUF_SIZE))
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#define RAMROM_PRINTF_ADDR (RAMROM_MSG_ADDR + (4*RAMROM_BUF_SIZE))
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#define RAMROM_LOG_ADDR (RAMROM_MSG_ADDR + (5*RAMROM_BUF_SIZE))
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/*#define RAMROM_GIO_INTERRUPT (RAMROM_MSG_ADDR + RAMROM_MSG_SIZE - 4)*/
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/*
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* For the initial round of PIF bringup, we will load in a bootstrap loader
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* 0x400 bytes into the ramrom, and the rom will be loaded at 0x2000
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*/
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#ifndef _HW_VERSION_1
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#define RAMROM_BOOTSTRAP_OFFSET 0x40
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#define RAMROM_GAME_OFFSET 0x1000
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#define RAMROM_FONTDATA_OFFSET 0xb70
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#define RAMROM_FONTDATA_SIZE 1152
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#else
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#define RAMROM_BOOTSTRAP_OFFSET 0x400
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#define RAMROM_GAME_OFFSET 0x2000
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#endif
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#define RAMROM_CLOCKRATE_OFFSET 0x4
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#define RAMROM_CLOCKRATE_MASK 0xfffffff0
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#define RAMROM_BOOTADDR_OFFSET 0x8
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#define RAMROM_RELEASE_OFFSET 0xc
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/*
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* Second version of the PIF jumps to location 0x1000, and we'll put a jump to
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* location 0x400 into the ramrom (for backwards compatibility).
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*/
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#define RAMROM_PIF2BOOTSTRAP_OFFSET 0x1000
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typedef struct {
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long type;
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long length; /* in bytes of userdata */
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long magic;
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char userdata[RAMROM_USER_DATA_SIZE];
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} RamRomBuffer;
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/*
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* Interrupt values (must fit in 6 bits!)
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* values are used for both request & response
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* Transactions initiated by the host start with HOST
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* and those initiated by the target start with GAME.
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*/
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#define HOST_PIACCESS_REQ 1
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#define HOST_DBG_CMD_READY 2
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#define GAME_DBG_DATA_SEND 3
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#define HOST_DBG_DATA_ACK 4
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#define GAME_PRINTF_SEND 5
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#define HOST_PRINTF_ACK 6
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#define GAME_LOG_SEND 7
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#define HOST_LOG_ACK 8
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#define HOST_APP_CMD_READY 9
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#define GAME_APP_DATA_READY 10
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#define HOST_PROF_REQ 11
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#define GAME_PROF_SEND 12
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#define HOST_PROF_ACK 13
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#define GAME_FAULT_SEND 14
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#define HOST_FAULT_ACK 15
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#define GAME_EXIT 16
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#define HOST_DATA_ACK 17
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#ifdef _EMULATOR
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void __RamRomInit(int key, void *romaddr);
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void __RamRomDestroy(int key);
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#endif /* _EMULATOR */
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#endif /* !_RAMROM_H */
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