/***************************************************************************\
* armos.h                                                                   *
* Version 1.20                                                              *
* ARMulator II Operating System Definitions.                                *
* Copyright (C) 1991 Advanced RISC Machines Limited. All rights reserved.   *
* Written by Dave Jaggar.                                                   *
* Project started on 1st July 1991.                                         *
* Last change was Friday 10th July 1992.                                    *
\***************************************************************************/


/***************************************************************************\
*                   Define the initial layout of memory                     *
\***************************************************************************/

#define ADDRSUPERSTACK          0xA00L   /* supervisor stack space */
#define ADDRABORTSTACK          0x800L   /* abort stack space */
#define ADDRUNDEFSTACK          0x700L   /* undef stack space */
#define ADDRIRQSTACK            0x500L   /* IRQ stack space */
#define ADDRFIQSTACK            0x400L   /* FIQ stack space */
#define ADDRUSERSTACK           0x80000L /* default user stack start */
#define ADDRSOFTVECTORS         0xA40L   /* 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                                 *
\***************************************************************************/

#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 FPEEND 0x8000L

extern struct fpedesc {
  ARMword base;
  ARMword regs;
  int version;
} fpedesc;