Archipelago » qemu

    /* FPU state */

    unsigned int fpstt; /* top of stack index */

    unsigned int fpus;

    uint8_t fptags[8];   /* 0 = valid, 1 = empty */

    union {

#ifdef USE_X86LDOUBLE

void cpu_save(QEMUFile *f, void *opaque)

{

    CPUState *env = opaque;

    int32_t pending_irq;

    int i, bit;

    qemu_put_be32s(f, &env->hflags);

    /* FPU */

    fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;

    fptag = 0;

    for(i = 0; i < 8; i++) {

        fptag |= ((!env->fptags[i]) << i);

    }

    qemu_put_be16s(f, &fpus);

    qemu_put_be16s(f, &fptag);

{

    CPUState *env = opaque;

    int i, guess_mmx;

    int32_t pending_irq;

    cpu_synchronize_state(env);

    qemu_get_betls(f, &env->eflags);

    qemu_get_be32s(f, &env->hflags);

    qemu_get_be16s(f, &fpus);

    qemu_get_be16s(f, &fptag);

    qemu_get_be16s(f, &fpregs_format);

        }

    }

    /* XXX: restore FPU round state */

    env->fpstt = (fpus >> 11) & 7;

    env->fpus = fpus & ~0x3800;