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Call fpu_emulate to handle T_FPEMULI or T_FPEMULD traps.

This commit is contained in:
gwr 1995-03-01 05:10:36 +00:00
parent 04efad1126
commit ad3992c273
1 changed files with 13 additions and 10 deletions
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23
sys/arch/sun3/sun3/trap.c
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@ -1,4 +1,4 @@
/* $NetBSD: trap.c,v 1.40 1995/02/24 05:03:47 gwr Exp $ */
/* $NetBSD: trap.c,v 1.41 1995/03/01 05:10:36 gwr Exp $ */
/*
* Copyright (c) 1994 Gordon W. Ross
@ -104,7 +104,11 @@ char *trap_type[] = {
"Format error",
"68881 exception",
"Coprocessor violation",
"Async system trap"
"Async system trap",
"Unused? (14)",
"Breakpoint",
"FPU instruction",
"FPU data format",
};
u_int trap_types = sizeof(trap_type) / sizeof(trap_type[0]);
@ -316,14 +320,13 @@ trap(type, code, v, frame)
case T_FPEMULI|T_USER: /* unimplemented FP instuction */
case T_FPEMULD|T_USER: /* unimplemented FP data type */
/* XXX - Need to attach FPU emulator here. */
/* XXX need to FSAVE */
printf("pid %d(%s): unimplemented FP %s at %x (EA %x)\n",
p->p_pid, p->p_comm,
frame.f_format == 2 ? "instruction" : "data type",
frame.f_pc, frame.f_fmt2.f_iaddr);
/* XXX need to FRESTORE */
sig = SIGFPE;
#ifdef FPU_EMULATE
sig = fpu_emulate(&frame, &p->p_addr->u_pcb.pcb_fpregs);
/* XXX - Deal with tracing? (frame.f_sr & PSL_T) */
#else
uprintf("pid %d killed: no floating point support\n", p->p_pid);
sig = SIGILL;
#endif
break;
case T_ILLINST|T_USER: /* illegal instruction fault */