symbian-qemu-0.9.1-12/qemu-symbian-svp/target-mips/exec.h
author Gareth Stockwell <gareth.stockwell@accenture.com>
Mon, 06 Sep 2010 16:25:43 +0100
changeset 107 3bc1a978be44
parent 1 2fb8b9db1c86
permissions -rw-r--r--
Fix for Bug 3671 - QEMU GDB stub listens on IPv6-only port on Windows 7 The connection string used by the GDB stub does not specify which version of the Internet Protocol should be used by the port on which it listens. On host platforms with IPv6 support, such as Windows 7, this means that the stub listens on an IPv6-only port. Since the GDB client uses IPv4, this means that the client cannot connect to QEMU.

#if !defined(__QEMU_MIPS_EXEC_H__)
#define __QEMU_MIPS_EXEC_H__

//#define DEBUG_OP

#include "config.h"
#include "mips-defs.h"
#include "dyngen-exec.h"
#include "cpu-defs.h"

register struct CPUMIPSState *env asm(AREG0);

#include "cpu.h"
#include "exec-all.h"

#if !defined(CONFIG_USER_ONLY)
#include "softmmu_exec.h"
#endif /* !defined(CONFIG_USER_ONLY) */

void do_mtc0_status_debug(uint32_t old, uint32_t val);
void do_mtc0_status_irqraise_debug(void);
void dump_fpu(CPUState *env);
void fpu_dump_state(CPUState *env, FILE *f,
                    int (*fpu_fprintf)(FILE *f, const char *fmt, ...),
                    int flags);

void cpu_mips_clock_init (CPUState *env);
void cpu_mips_tlb_flush (CPUState *env, int flush_global);

static inline void env_to_regs(void)
{
}

static inline void regs_to_env(void)
{
}

static inline int cpu_halted(CPUState *env)
{
    if (!env->halted)
        return 0;
    if (env->interrupt_request &
        (CPU_INTERRUPT_HARD | CPU_INTERRUPT_TIMER)) {
        env->halted = 0;
        return 0;
    }
    return EXCP_HALTED;
}

static inline void compute_hflags(CPUState *env)
{
    env->hflags &= ~(MIPS_HFLAG_COP1X | MIPS_HFLAG_64 | MIPS_HFLAG_CP0 |
                     MIPS_HFLAG_F64 | MIPS_HFLAG_FPU | MIPS_HFLAG_KSU |
                     MIPS_HFLAG_UX);
    if (!(env->CP0_Status & (1 << CP0St_EXL)) &&
        !(env->CP0_Status & (1 << CP0St_ERL)) &&
        !(env->hflags & MIPS_HFLAG_DM)) {
        env->hflags |= (env->CP0_Status >> CP0St_KSU) & MIPS_HFLAG_KSU;
    }
#if defined(TARGET_MIPS64)
    if (((env->hflags & MIPS_HFLAG_KSU) != MIPS_HFLAG_UM) ||
        (env->CP0_Status & (1 << CP0St_PX)) ||
        (env->CP0_Status & (1 << CP0St_UX)))
        env->hflags |= MIPS_HFLAG_64;
    if (env->CP0_Status & (1 << CP0St_UX))
        env->hflags |= MIPS_HFLAG_UX;
#endif
    if ((env->CP0_Status & (1 << CP0St_CU0)) ||
        !(env->hflags & MIPS_HFLAG_KSU))
        env->hflags |= MIPS_HFLAG_CP0;
    if (env->CP0_Status & (1 << CP0St_CU1))
        env->hflags |= MIPS_HFLAG_FPU;
    if (env->CP0_Status & (1 << CP0St_FR))
        env->hflags |= MIPS_HFLAG_F64;
    if (env->insn_flags & ISA_MIPS32R2) {
        if (env->active_fpu.fcr0 & (1 << FCR0_F64))
            env->hflags |= MIPS_HFLAG_COP1X;
    } else if (env->insn_flags & ISA_MIPS32) {
        if (env->hflags & MIPS_HFLAG_64)
            env->hflags |= MIPS_HFLAG_COP1X;
    } else if (env->insn_flags & ISA_MIPS4) {
        /* All supported MIPS IV CPUs use the XX (CU3) to enable
           and disable the MIPS IV extensions to the MIPS III ISA.
           Some other MIPS IV CPUs ignore the bit, so the check here
           would be too restrictive for them.  */
        if (env->CP0_Status & (1 << CP0St_CU3))
            env->hflags |= MIPS_HFLAG_COP1X;
    }
}

#endif /* !defined(__QEMU_MIPS_EXEC_H__) */