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From: Peter Wemm <peter@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
Cc: 
Subject: PERFORCE change 77417 for review
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http://perforce.freebsd.org/chv.cgi?CH=77417

Change 77417 by peter@peter_melody on 2005/05/24 21:55:16

	flesh out some more.  These might work too.

Affected files ...

.. //depot/projects/hammer/sys/amd64/ia32/ia32_reg.c#4 edit

Differences ...

==== //depot/projects/hammer/sys/amd64/ia32/ia32_reg.c#4 (text+ko) ====

@@ -144,20 +144,53 @@
 int
 set_fpregs32(struct thread *td, struct fpreg32 *regs)
 {
+	struct save87 *sv_87 = (struct save87 *)regs;
+	struct env87 *penv_87 = &sv_87->sv_env;
+	struct savefpu *sv_fpu = &td->td_pcb->pcb_save;
+	struct envxmm *penv_xmm = &sv_fpu->sv_env;
+	int i;
+
+	/* FPU control/status */
+	penv_xmm->en_cw = penv_87->en_cw;
+	penv_xmm->en_sw = penv_87->en_sw;
+	penv_xmm->en_tw = penv_87->en_tw;
+	penv_xmm->en_rip = penv_87->en_fip;
+	/* penv_87->en_fcs and en_fos ignored, see above */
+	penv_xmm->en_opcode = penv_87->en_opcode;
+	penv_xmm->en_rdp = penv_87->en_foo;
+
+	/* FPU registers */
+	for (i = 0; i < 8; ++i)
+		sv_fpu->sv_fp[i].fp_acc = sv_87->sv_ac[i];
+	for (i = 8; i < 16; ++i)
+		bzero(&sv_fpu->sv_fp[i].fp_acc, sizeof(sv_fpu->sv_fp[i].fp_acc));
 
-	return (ENOSYS);
+	return (0);
 }
 
 int
 fill_dbregs32(struct thread *td, struct dbreg32 *regs)
 {
+	struct dbreg dr;
+	int err, i;
 
-	return (ENOSYS);
+	err = fill_dbregs(td, &dr);
+	for (i = 0; i < 8; i++)
+		regs->dr[i] = dr.dr[i];
+	for (i = 8; i < 16; i++)
+		regs->dr[i] = 0;
+	return (err);
 }
 
 int
 set_dbregs32(struct thread *td, struct dbreg32 *regs)
 {
+	struct dbreg dr;
+	int i;
 
-	return (ENOSYS);
+	for (i = 0; i < 8; i++)
+		dr.dr[i] = regs->dr[i];
+	for (i = 8; i < 16; i++)
+		dr.dr[i] = 0;
+	return (set_dbregs(td, &dr));
 }