Module Name: src Committed By: rin Date: Fri Sep 2 12:47:10 UTC 2022
Modified Files: src/sys/arch/powerpc/fpu: fpu_emu.c Log Message: Fix fres and frsqrte. - Pass correct fp to succeeding fpu_implode(). - fres calculates 1 / frB; not 1 / sqrt(frB). To generate a diff of this commit: cvs rdiff -u -r1.45 -r1.46 src/sys/arch/powerpc/fpu/fpu_emu.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/arch/powerpc/fpu/fpu_emu.c diff -u src/sys/arch/powerpc/fpu/fpu_emu.c:1.45 src/sys/arch/powerpc/fpu/fpu_emu.c:1.46 --- src/sys/arch/powerpc/fpu/fpu_emu.c:1.45 Fri Sep 2 12:40:49 2022 +++ src/sys/arch/powerpc/fpu/fpu_emu.c Fri Sep 2 12:47:10 2022 @@ -1,4 +1,4 @@ -/* $NetBSD: fpu_emu.c,v 1.45 2022/09/02 12:40:49 rin Exp $ */ +/* $NetBSD: fpu_emu.c,v 1.46 2022/09/02 12:47:10 rin Exp $ */ /* * Copyright 2001 Wasabi Systems, Inc. @@ -76,7 +76,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: fpu_emu.c,v 1.45 2022/09/02 12:40:49 rin Exp $"); +__KERNEL_RCSID(0, "$NetBSD: fpu_emu.c,v 1.46 2022/09/02 12:47:10 rin Exp $"); #ifdef _KERNEL_OPT #include "opt_ddb.h" @@ -690,10 +690,9 @@ fpu_execute(struct trapframe *tf, struct case OPC59_FRES: FPU_EMU_EVCNT_INCR(fpres); DPRINTF(FPE_INSN, ("fpu_execute: FPRES\n")); - fpu_explode(fe, &fe->fe_f2, type, FR(rb)); - fp = fpu_sqrt(fe); fpu_explode(fe, &fe->fe_f1, FTYPE_INT, 1); - fpu_div(fe); + fpu_explode(fe, &fe->fe_f2, type, FR(rb)); + fp = fpu_div(fe); break; case OPC59_FMULS: FPU_EMU_EVCNT_INCR(fmul); @@ -710,7 +709,7 @@ fpu_execute(struct trapframe *tf, struct fp = fpu_sqrt(fe); fe->fe_f2 = *fp; fpu_explode(fe, &fe->fe_f1, FTYPE_INT, 1); - fpu_div(fe); + fp = fpu_div(fe); break; case OPC59_FMSUBS: FPU_EMU_EVCNT_INCR(fmulsub);