/*  armos.h -- ARMulator OS definitions:  ARM6 Instruction Emulator.
    Copyright (C) 1994 Advanced RISC Machines Ltd.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, see <http://www.gnu.org/licenses/>. */

/* Define the initial layout of memory.  */

#define ADDRSUPERSTACK          0x800L	/* Supervisor stack space.  */
#define ADDRUSERSTACK           0x80000L/* Default user stack start.  */
#define ADDRSOFTVECTORS         0x840L	/* Soft vectors are here.  */
#define ADDRCMDLINE             0xf00L	/* Command line is here after a SWI GetEnv.  */
#define ADDRSOFHANDLERS         0xad0L	/* Address and workspace for installed handlers.  */
#define SOFTVECTORCODE          0xb80L	/* Default handlers.  */

/* SWI numbers.  */

#if COG
/* Add prefetch error for Cog usage of this simulator, hacked up though it may be 
   It isn't a real SWI but (ab)uses the mechanism to do it's eeeeeevil work */
#define SWI_CogPrefetch            0x42 /* because why wouldn't we? */
#endif

#define SWI_WriteC                 0x0
#define SWI_Write0                 0x2
#define SWI_ReadC                  0x4
#define SWI_CLI                    0x5
#define SWI_GetEnv                 0x10
#define SWI_Exit                   0x11
#define SWI_EnterOS                0x16

#define SWI_GetErrno               0x60
#define SWI_Clock                  0x61
#define SWI_Time                   0x63
#define SWI_Remove                 0x64
#define SWI_Rename                 0x65
#define SWI_Open                   0x66

#define SWI_Close                  0x68
#define SWI_Write                  0x69
#define SWI_Read                   0x6a
#define SWI_Seek                   0x6b
#define SWI_Flen                   0x6c

#define SWI_IsTTY                  0x6e
#define SWI_TmpNam                 0x6f
#define SWI_InstallHandler         0x70
#define SWI_GenerateError          0x71

#define SWI_Breakpoint             0x180000	/* See gdb's tm-arm.h  */

#define AngelSWI_ARM		   0x123456
#define AngelSWI_Thumb		   0xAB

/* The reason codes:  */
#define AngelSWI_Reason_Open		0x01
#define AngelSWI_Reason_Close		0x02
#define AngelSWI_Reason_WriteC		0x03
#define AngelSWI_Reason_Write0		0x04
#define AngelSWI_Reason_Write		0x05
#define AngelSWI_Reason_Read		0x06
#define AngelSWI_Reason_ReadC		0x07
#define AngelSWI_Reason_IsTTY		0x09
#define AngelSWI_Reason_Seek		0x0A
#define AngelSWI_Reason_FLen		0x0C
#define AngelSWI_Reason_TmpNam		0x0D
#define AngelSWI_Reason_Remove		0x0E
#define AngelSWI_Reason_Rename		0x0F
#define AngelSWI_Reason_Clock		0x10
#define AngelSWI_Reason_Time		0x11
#define AngelSWI_Reason_System		0x12
#define AngelSWI_Reason_Errno		0x13
#define AngelSWI_Reason_GetCmdLine 	0x15
#define AngelSWI_Reason_HeapInfo 	0x16
#define AngelSWI_Reason_EnterSVC 	0x17
#define AngelSWI_Reason_ReportException 0x18
#define ADP_Stopped_ApplicationExit 	((2 << 16) + 38)
#define ADP_Stopped_RunTimeError 	((2 << 16) + 35)

/* Floating Point Emulator address space.  */
#define FPESTART         0x2000L
#define FPEEND           0x8000L
#define FPEOLDVECT       FPESTART + 0x100L + 8L * 16L + 4L	/* Stack + 8 regs + fpsr.  */
#define FPENEWVECT(addr) 0xea000000L + ((addr) >> 2) - 3L	/* Branch from 4 to 0x2400.  */

extern unsigned long fpecode[];
extern unsigned long fpesize;

extern int SWI_vector_installed;
