/*
* SoftPC Revision 3.0
*
* Title : Definitions for the 80386 CPU
*
* Description : Structures, macros and definitions for access to the
* CPU registers
*
* Author : Wayne Plummer
*
* Derived From : cpu.h
*
* Notes : This file should be portable - but includes a file
* host_cpu.h which contains machine specific definitions
* of CPU register mappings etc.
*
* SccsID : @(#)cpu4.h 1.12 10/21/94
*
* (c)Copyright Insignia Solutions Ltd., 1991-1994. All rights reserved.
*/
#include "host_cpu.h"
IMPORT VOID host_set_hw_int IPT0();
IMPORT VOID host_clear_hw_int IPT0();
/*
* Host functions to be provided for the base to use with respect to the CPU.
* These must be done in host_cpu.h because some hosts may want functions and
* others may want #defines.
*/
/*
* This macro specifies the maximum recursion depth the CPU is required to support.
* (Note that a particular host may not actually use this value if it is capable
* of supporting abirtarily deep recursion).
*/
#define CPU_MAX_RECURSION 32
/*
* Interrupt types...
*/
#include <CpuInt_c.h>
typedef enum CPU_INT_TYPE CPU_INT_TYPE;
#ifdef CPU_PRIVATE
/*
Function returns for private i/f procedures handling segment loading.
*/
#define GP_ERROR 13
#define NP_ERROR 11
#define SF_ERROR 12
#endif /* CPU_PRIVATE */
/*
* Include the main part of the cpu interface, which at present is generated
*/
#include <cpu4gen.h>
IMPORT void cpuEnableInterrupts IPT1(IBOOL, yes_or_no);
#ifdef IRET_HOOKS
#ifdef CCPU
IMPORT VOID c_Cpu_set_hook_selector IPT1(IU16, selector);
#define Cpu_set_hook_selector c_Cpu_set_hook_selector
#else
IMPORT VOID a3_Cpu_set_hook_selector IPT1(IU16, selector);
#define Cpu_set_hook_selector a3_Cpu_set_hook_selector
#endif
#endif /* IRET_HOOKS */
/*
* These functions get the (E)IP or (E)SP correctly whatever size stack
* or code segment is in use. For anything but GISP, we always hold
* the IP as a 32 bit quantity, so we don't have to worry about the
* distinction.
*/
#ifdef GISP_CPU
extern IU32 GetInstructionPointer IPT0();
#else
#define GetInstructionPointer getEIP
#endif
extern IU32 GetStackPointer IPT0();
#ifdef IRET_HOOKS
/*
* The interfaces provided by the CPU so that the ICA can initiate and
* terminate an iret hook.
*/
extern void Cpu_do_hook IPT2(IUM8, line, IBOOL, is_hooked);
extern void Cpu_inter_hook_processing IPT1(IUM8, line);
extern void Cpu_unhook IPT1(IUM8, line_number);
#ifdef GISP_CPU
extern void Cpu_set_hook_selector IPT1(IU16, selector);
extern void Cpu_hook_bop IPT0();
#endif
#endif /* IRET_HOOKS */
/*
* This function lets ios.c determine whether it is OK for it to go
* ahead and do an in or out instruction, or whether the CPU wants to take
* it over instead.
*/
/* However, it is sometimes defined as a macro */
#if !defined(CCPU) && !defined(PROD)
extern IBOOL IOVirtualised IPT4(io_addr, io_address, IU32 *, value, LIN_ADDR, offset, IU8, width);
#endif
#ifndef CCPU
/*
* Npx functions:
*/
#ifndef PROD
GLOBAL IU32 a_getNpxControlReg IPT0();
GLOBAL IU32 a_getNpxStatusReg IPT0();
GLOBAL IU32 a_getNpxTagwordReg IPT0();
GLOBAL char *a_getNpxStackReg IPT2(IU32, reg_num, char *, buffer);
#endif /* PROD */
#ifdef PIG
GLOBAL void a_setNpxControlReg IPT1(IU32, newControl);
GLOBAL void a_setNpxStatusReg IPT1(IU32, newStatus);
#endif /* PIG */
#endif /* !CCPU */
