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x87 fix

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This commit is contained in:
Stanislav Shwartsman 2009-05-07 16:27:18 +00:00
parent 68633b09d2
commit cc60f4ab71
1 changed files with 5 additions and 3 deletions
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8
bochs/fpu/fpu_load_store.cc
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@ -1,5 +1,5 @@
///////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////
// $Id: fpu_load_store.cc,v 1.33 2009-04-27 14:00:55 sshwarts Exp $ // $Id: fpu_load_store.cc,v 1.34 2009-05-07 16:27:18 sshwarts Exp $
///////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////
// //
// Copyright (c) 2003 Stanislav Shwartsman // Copyright (c) 2003 Stanislav Shwartsman
@ -89,7 +89,8 @@ void BX_CPP_AttrRegparmN(1) BX_CPU_C::FLD_SINGLE_REAL(bxInstruction_c *i)
// convert to floatx80 format // convert to floatx80 format
floatx80 result = float32_to_floatx80(load_reg, status); floatx80 result = float32_to_floatx80(load_reg, status);
if (! BX_CPU_THIS_PTR FPU_exception(status.float_exception_flags)) { unsigned unmasked = BX_CPU_THIS_PTR FPU_exception(status.float_exception_flags);
if (! (unmasked & FPU_CW_Invalid)) {
BX_CPU_THIS_PTR the_i387.FPU_push(); BX_CPU_THIS_PTR the_i387.FPU_push();
BX_WRITE_FPU_REG(result, 0); BX_WRITE_FPU_REG(result, 0);
} }
@ -121,7 +122,8 @@ void BX_CPP_AttrRegparmN(1) BX_CPU_C::FLD_DOUBLE_REAL(bxInstruction_c *i)
// convert to floatx80 format // convert to floatx80 format
floatx80 result = float64_to_floatx80(load_reg, status); floatx80 result = float64_to_floatx80(load_reg, status);
if (! BX_CPU_THIS_PTR FPU_exception(status.float_exception_flags)) { unsigned unmasked = BX_CPU_THIS_PTR FPU_exception(status.float_exception_flags);
if (! (unmasked & FPU_CW_Invalid)) {
BX_CPU_THIS_PTR the_i387.FPU_push(); BX_CPU_THIS_PTR the_i387.FPU_push();
BX_WRITE_FPU_REG(result, 0); BX_WRITE_FPU_REG(result, 0);
} }