Archipelago » qemu

#ifdef MIPS_USES_FPU

#include "softfloat.h"

void fpu_handle_exception(void)

{

#ifdef CONFIG_SOFTFLOAT

    int flags = get_float_exception_flags(&env->fp_status);

    unsigned int cpuflags = 0, enable, cause = 0;

    enable = GET_FP_ENABLE(env->fcr31);

    /* determine current flags */   

    if (flags & float_flag_invalid) {

        cpuflags |= FP_INVALID;

        cause |= FP_INVALID & enable;

    }

    if (flags & float_flag_divbyzero) {

        cpuflags |= FP_DIV0;    

        cause |= FP_DIV0 & enable;

    }

    if (flags & float_flag_overflow) {

        cpuflags |= FP_OVERFLOW;    

        cause |= FP_OVERFLOW & enable;

    }

    if (flags & float_flag_underflow) {

        cpuflags |= FP_UNDERFLOW;   

        cause |= FP_UNDERFLOW & enable;

    }

    if (flags & float_flag_inexact) {

        cpuflags |= FP_INEXACT; 

        cause |= FP_INEXACT & enable;

    }

    SET_FP_FLAGS(env->fcr31, cpuflags);

    SET_FP_CAUSE(env->fcr31, cause);

#else

    SET_FP_FLAGS(env->fcr31, 0);

    SET_FP_CAUSE(env->fcr31, 0);

#endif

}

#endif /* MIPS_USES_FPU */