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alistair23-linux/arch/x86/math-emu/reg_round.S
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

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/* SPDX-License-Identifier: GPL-2.0 */
.file "reg_round.S"
/*---------------------------------------------------------------------------+
| reg_round.S |
| |
| Rounding/truncation/etc for FPU basic arithmetic functions. |
| |
| Copyright (C) 1993,1995,1997 |
| W. Metzenthen, 22 Parker St, Ormond, Vic 3163, |
| Australia. E-mail billm@suburbia.net |
| |
| This code has four possible entry points. |
| The following must be entered by a jmp instruction: |
| fpu_reg_round, fpu_reg_round_sqrt, and fpu_Arith_exit. |
| |
| The FPU_round entry point is intended to be used by C code. |
| From C, call as: |
| int FPU_round(FPU_REG *arg, unsigned int extent, unsigned int control_w) |
| |
| Return value is the tag of the answer, or-ed with FPU_Exception if |
| one was raised, or -1 on internal error. |
| |
| For correct "up" and "down" rounding, the argument must have the correct |
| sign. |
| |
+---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------+
| Four entry points. |
| |
| Needed by both the fpu_reg_round and fpu_reg_round_sqrt entry points: |
| %eax:%ebx 64 bit significand |
| %edx 32 bit extension of the significand |
| %edi pointer to an FPU_REG for the result to be stored |
| stack calling function must have set up a C stack frame and |
| pushed %esi, %edi, and %ebx |
| |
| Needed just for the fpu_reg_round_sqrt entry point: |
| %cx A control word in the same format as the FPU control word. |
| Otherwise, PARAM4 must give such a value. |
| |
| |
| The significand and its extension are assumed to be exact in the |
| following sense: |
| If the significand by itself is the exact result then the significand |
| extension (%edx) must contain 0, otherwise the significand extension |
| must be non-zero. |
| If the significand extension is non-zero then the significand is |
| smaller than the magnitude of the correct exact result by an amount |
| greater than zero and less than one ls bit of the significand. |
| The significand extension is only required to have three possible |
| non-zero values: |
| less than 0x80000000 <=> the significand is less than 1/2 an ls |
| bit smaller than the magnitude of the |
| true exact result. |
| exactly 0x80000000 <=> the significand is exactly 1/2 an ls bit |
| smaller than the magnitude of the true |
| exact result. |
| greater than 0x80000000 <=> the significand is more than 1/2 an ls |
| bit smaller than the magnitude of the |
| true exact result. |
| |
+---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------+
| The code in this module has become quite complex, but it should handle |
| all of the FPU flags which are set at this stage of the basic arithmetic |
| computations. |
| There are a few rare cases where the results are not set identically to |
| a real FPU. These require a bit more thought because at this stage the |
| results of the code here appear to be more consistent... |
| This may be changed in a future version. |
+---------------------------------------------------------------------------*/
#include "fpu_emu.h"
#include "exception.h"
#include "control_w.h"
/* Flags for FPU_bits_lost */
#define LOST_DOWN $1
#define LOST_UP $2
/* Flags for FPU_denormal */
#define DENORMAL $1
#define UNMASKED_UNDERFLOW $2
#ifndef NON_REENTRANT_FPU
/* Make the code re-entrant by putting
local storage on the stack: */
#define FPU_bits_lost (%esp)
#define FPU_denormal 1(%esp)
#else
/* Not re-entrant, so we can gain speed by putting
local storage in a static area: */
.data
.align 4,0
FPU_bits_lost:
.byte 0
FPU_denormal:
.byte 0
#endif /* NON_REENTRANT_FPU */
.text
.globl fpu_reg_round
.globl fpu_Arith_exit
/* Entry point when called from C */
ENTRY(FPU_round)
pushl %ebp
movl %esp,%ebp
pushl %esi
pushl %edi
pushl %ebx
movl PARAM1,%edi
movl SIGH(%edi),%eax
movl SIGL(%edi),%ebx
movl PARAM2,%edx
fpu_reg_round: /* Normal entry point */
movl PARAM4,%ecx
#ifndef NON_REENTRANT_FPU
pushl %ebx /* adjust the stack pointer */
#endif /* NON_REENTRANT_FPU */
#ifdef PARANOID
/* Cannot use this here yet */
/* orl %eax,%eax */
/* jns L_entry_bugged */
#endif /* PARANOID */
cmpw EXP_UNDER,EXP(%edi)
jle L_Make_denorm /* The number is a de-normal */
movb $0,FPU_denormal /* 0 -> not a de-normal */
Denorm_done:
movb $0,FPU_bits_lost /* No bits yet lost in rounding */
movl %ecx,%esi
andl CW_PC,%ecx
cmpl PR_64_BITS,%ecx
je LRound_To_64
cmpl PR_53_BITS,%ecx
je LRound_To_53
cmpl PR_24_BITS,%ecx
je LRound_To_24
#ifdef PECULIAR_486
/* With the precision control bits set to 01 "(reserved)", a real 80486
behaves as if the precision control bits were set to 11 "64 bits" */
cmpl PR_RESERVED_BITS,%ecx
je LRound_To_64
#ifdef PARANOID
jmp L_bugged_denorm_486
#endif /* PARANOID */
#else
#ifdef PARANOID
jmp L_bugged_denorm /* There is no bug, just a bad control word */
#endif /* PARANOID */
#endif /* PECULIAR_486 */
/* Round etc to 24 bit precision */
LRound_To_24:
movl %esi,%ecx
andl CW_RC,%ecx
cmpl RC_RND,%ecx
je LRound_nearest_24
cmpl RC_CHOP,%ecx
je LCheck_truncate_24
cmpl RC_UP,%ecx /* Towards +infinity */
je LUp_24
cmpl RC_DOWN,%ecx /* Towards -infinity */
je LDown_24
#ifdef PARANOID
jmp L_bugged_round24
#endif /* PARANOID */
LUp_24:
cmpb SIGN_POS,PARAM5
jne LCheck_truncate_24 /* If negative then up==truncate */
jmp LCheck_24_round_up
LDown_24:
cmpb SIGN_POS,PARAM5
je LCheck_truncate_24 /* If positive then down==truncate */
LCheck_24_round_up:
movl %eax,%ecx
andl $0x000000ff,%ecx
orl %ebx,%ecx
orl %edx,%ecx
jnz LDo_24_round_up
jmp L_Re_normalise
LRound_nearest_24:
/* Do rounding of the 24th bit if needed (nearest or even) */
movl %eax,%ecx
andl $0x000000ff,%ecx
cmpl $0x00000080,%ecx
jc LCheck_truncate_24 /* less than half, no increment needed */
jne LGreater_Half_24 /* greater than half, increment needed */
/* Possibly half, we need to check the ls bits */
orl %ebx,%ebx
jnz LGreater_Half_24 /* greater than half, increment needed */
orl %edx,%edx
jnz LGreater_Half_24 /* greater than half, increment needed */
/* Exactly half, increment only if 24th bit is 1 (round to even) */
testl $0x00000100,%eax
jz LDo_truncate_24
LGreater_Half_24: /* Rounding: increment at the 24th bit */
LDo_24_round_up:
andl $0xffffff00,%eax /* Truncate to 24 bits */
xorl %ebx,%ebx
movb LOST_UP,FPU_bits_lost
addl $0x00000100,%eax
jmp LCheck_Round_Overflow
LCheck_truncate_24:
movl %eax,%ecx
andl $0x000000ff,%ecx
orl %ebx,%ecx
orl %edx,%ecx
jz L_Re_normalise /* No truncation needed */
LDo_truncate_24:
andl $0xffffff00,%eax /* Truncate to 24 bits */
xorl %ebx,%ebx
movb LOST_DOWN,FPU_bits_lost
jmp L_Re_normalise
/* Round etc to 53 bit precision */
LRound_To_53:
movl %esi,%ecx
andl CW_RC,%ecx
cmpl RC_RND,%ecx
je LRound_nearest_53
cmpl RC_CHOP,%ecx
je LCheck_truncate_53
cmpl RC_UP,%ecx /* Towards +infinity */
je LUp_53
cmpl RC_DOWN,%ecx /* Towards -infinity */
je LDown_53
#ifdef PARANOID
jmp L_bugged_round53
#endif /* PARANOID */
LUp_53:
cmpb SIGN_POS,PARAM5
jne LCheck_truncate_53 /* If negative then up==truncate */
jmp LCheck_53_round_up
LDown_53:
cmpb SIGN_POS,PARAM5
je LCheck_truncate_53 /* If positive then down==truncate */
LCheck_53_round_up:
movl %ebx,%ecx
andl $0x000007ff,%ecx
orl %edx,%ecx
jnz LDo_53_round_up
jmp L_Re_normalise
LRound_nearest_53:
/* Do rounding of the 53rd bit if needed (nearest or even) */
movl %ebx,%ecx
andl $0x000007ff,%ecx
cmpl $0x00000400,%ecx
jc LCheck_truncate_53 /* less than half, no increment needed */
jnz LGreater_Half_53 /* greater than half, increment needed */
/* Possibly half, we need to check the ls bits */
orl %edx,%edx
jnz LGreater_Half_53 /* greater than half, increment needed */
/* Exactly half, increment only if 53rd bit is 1 (round to even) */
testl $0x00000800,%ebx
jz LTruncate_53
LGreater_Half_53: /* Rounding: increment at the 53rd bit */
LDo_53_round_up:
movb LOST_UP,FPU_bits_lost
andl $0xfffff800,%ebx /* Truncate to 53 bits */
addl $0x00000800,%ebx
adcl $0,%eax
jmp LCheck_Round_Overflow
LCheck_truncate_53:
movl %ebx,%ecx
andl $0x000007ff,%ecx
orl %edx,%ecx
jz L_Re_normalise
LTruncate_53:
movb LOST_DOWN,FPU_bits_lost
andl $0xfffff800,%ebx /* Truncate to 53 bits */
jmp L_Re_normalise
/* Round etc to 64 bit precision */
LRound_To_64:
movl %esi,%ecx
andl CW_RC,%ecx
cmpl RC_RND,%ecx
je LRound_nearest_64
cmpl RC_CHOP,%ecx
je LCheck_truncate_64
cmpl RC_UP,%ecx /* Towards +infinity */
je LUp_64
cmpl RC_DOWN,%ecx /* Towards -infinity */
je LDown_64
#ifdef PARANOID
jmp L_bugged_round64
#endif /* PARANOID */
LUp_64:
cmpb SIGN_POS,PARAM5
jne LCheck_truncate_64 /* If negative then up==truncate */
orl %edx,%edx
jnz LDo_64_round_up
jmp L_Re_normalise
LDown_64:
cmpb SIGN_POS,PARAM5
je LCheck_truncate_64 /* If positive then down==truncate */
orl %edx,%edx
jnz LDo_64_round_up
jmp L_Re_normalise
LRound_nearest_64:
cmpl $0x80000000,%edx
jc LCheck_truncate_64
jne LDo_64_round_up
/* Now test for round-to-even */
testb $1,%bl
jz LCheck_truncate_64
LDo_64_round_up:
movb LOST_UP,FPU_bits_lost
addl $1,%ebx
adcl $0,%eax
LCheck_Round_Overflow:
jnc L_Re_normalise
/* Overflow, adjust the result (significand to 1.0) */
rcrl $1,%eax
rcrl $1,%ebx
incw EXP(%edi)
jmp L_Re_normalise
LCheck_truncate_64:
orl %edx,%edx
jz L_Re_normalise
LTruncate_64:
movb LOST_DOWN,FPU_bits_lost
L_Re_normalise:
testb $0xff,FPU_denormal
jnz Normalise_result
L_Normalised:
movl TAG_Valid,%edx
L_deNormalised:
cmpb LOST_UP,FPU_bits_lost
je L_precision_lost_up
cmpb LOST_DOWN,FPU_bits_lost
je L_precision_lost_down
L_no_precision_loss:
/* store the result */
L_Store_significand:
movl %eax,SIGH(%edi)
movl %ebx,SIGL(%edi)
cmpw EXP_OVER,EXP(%edi)
jge L_overflow
movl %edx,%eax
/* Convert the exponent to 80x87 form. */
addw EXTENDED_Ebias,EXP(%edi)
andw $0x7fff,EXP(%edi)
fpu_reg_round_signed_special_exit:
cmpb SIGN_POS,PARAM5
je fpu_reg_round_special_exit
orw $0x8000,EXP(%edi) /* Negative sign for the result. */
fpu_reg_round_special_exit:
#ifndef NON_REENTRANT_FPU
popl %ebx /* adjust the stack pointer */
#endif /* NON_REENTRANT_FPU */
fpu_Arith_exit:
popl %ebx
popl %edi
popl %esi
leave
ret
/*
* Set the FPU status flags to represent precision loss due to
* round-up.
*/
L_precision_lost_up:
push %edx
push %eax
call set_precision_flag_up
popl %eax
popl %edx
jmp L_no_precision_loss
/*
* Set the FPU status flags to represent precision loss due to
* truncation.
*/
L_precision_lost_down:
push %edx
push %eax
call set_precision_flag_down
popl %eax
popl %edx
jmp L_no_precision_loss
/*
* The number is a denormal (which might get rounded up to a normal)
* Shift the number right the required number of bits, which will
* have to be undone later...
*/
L_Make_denorm:
/* The action to be taken depends upon whether the underflow
exception is masked */
testb CW_Underflow,%cl /* Underflow mask. */
jz Unmasked_underflow /* Do not make a denormal. */
movb DENORMAL,FPU_denormal
pushl %ecx /* Save */
movw EXP_UNDER+1,%cx
subw EXP(%edi),%cx
cmpw $64,%cx /* shrd only works for 0..31 bits */
jnc Denorm_shift_more_than_63
cmpw $32,%cx /* shrd only works for 0..31 bits */
jnc Denorm_shift_more_than_32
/*
* We got here without jumps by assuming that the most common requirement
* is for a small de-normalising shift.
* Shift by [1..31] bits
*/
addw %cx,EXP(%edi)
orl %edx,%edx /* extension */
setne %ch /* Save whether %edx is non-zero */
xorl %edx,%edx
shrd %cl,%ebx,%edx
shrd %cl,%eax,%ebx
shr %cl,%eax
orb %ch,%dl
popl %ecx
jmp Denorm_done
/* Shift by [32..63] bits */
Denorm_shift_more_than_32:
addw %cx,EXP(%edi)
subb $32,%cl
orl %edx,%edx
setne %ch
orb %ch,%bl
xorl %edx,%edx
shrd %cl,%ebx,%edx
shrd %cl,%eax,%ebx
shr %cl,%eax
orl %edx,%edx /* test these 32 bits */
setne %cl
orb %ch,%bl
orb %cl,%bl
movl %ebx,%edx
movl %eax,%ebx
xorl %eax,%eax
popl %ecx
jmp Denorm_done
/* Shift by [64..) bits */
Denorm_shift_more_than_63:
cmpw $64,%cx
jne Denorm_shift_more_than_64
/* Exactly 64 bit shift */
addw %cx,EXP(%edi)
xorl %ecx,%ecx
orl %edx,%edx
setne %cl
orl %ebx,%ebx
setne %ch
orb %ch,%cl
orb %cl,%al
movl %eax,%edx
xorl %eax,%eax
xorl %ebx,%ebx
popl %ecx
jmp Denorm_done
Denorm_shift_more_than_64:
movw EXP_UNDER+1,EXP(%edi)
/* This is easy, %eax must be non-zero, so.. */
movl $1,%edx
xorl %eax,%eax
xorl %ebx,%ebx
popl %ecx
jmp Denorm_done
Unmasked_underflow:
movb UNMASKED_UNDERFLOW,FPU_denormal
jmp Denorm_done
/* Undo the de-normalisation. */
Normalise_result:
cmpb UNMASKED_UNDERFLOW,FPU_denormal
je Signal_underflow
/* The number must be a denormal if we got here. */
#ifdef PARANOID
/* But check it... just in case. */
cmpw EXP_UNDER+1,EXP(%edi)
jne L_norm_bugged
#endif /* PARANOID */
#ifdef PECULIAR_486
/*
* This implements a special feature of 80486 behaviour.
* Underflow will be signalled even if the number is
* not a denormal after rounding.
* This difference occurs only for masked underflow, and not
* in the unmasked case.
* Actual 80486 behaviour differs from this in some circumstances.
*/
orl %eax,%eax /* ms bits */
js LPseudoDenormal /* Will be masked underflow */
#else
orl %eax,%eax /* ms bits */
js L_Normalised /* No longer a denormal */
#endif /* PECULIAR_486 */
jnz LDenormal_adj_exponent
orl %ebx,%ebx
jz L_underflow_to_zero /* The contents are zero */
LDenormal_adj_exponent:
decw EXP(%edi)
LPseudoDenormal:
testb $0xff,FPU_bits_lost /* bits lost == underflow */
movl TAG_Special,%edx
jz L_deNormalised
/* There must be a masked underflow */
push %eax
pushl EX_Underflow
call EXCEPTION
popl %eax
popl %eax
movl TAG_Special,%edx
jmp L_deNormalised
/*
* The operations resulted in a number too small to represent.
* Masked response.
*/
L_underflow_to_zero:
push %eax
call set_precision_flag_down
popl %eax
push %eax
pushl EX_Underflow
call EXCEPTION
popl %eax
popl %eax
/* Reduce the exponent to EXP_UNDER */
movw EXP_UNDER,EXP(%edi)
movl TAG_Zero,%edx
jmp L_Store_significand
/* The operations resulted in a number too large to represent. */
L_overflow:
addw EXTENDED_Ebias,EXP(%edi) /* Set for unmasked response. */
push %edi
call arith_overflow
pop %edi
jmp fpu_reg_round_signed_special_exit
Signal_underflow:
/* The number may have been changed to a non-denormal */
/* by the rounding operations. */
cmpw EXP_UNDER,EXP(%edi)
jle Do_unmasked_underflow
jmp L_Normalised
Do_unmasked_underflow:
/* Increase the exponent by the magic number */
addw $(3*(1<<13)),EXP(%edi)
push %eax
pushl EX_Underflow
call EXCEPTION
popl %eax
popl %eax
jmp L_Normalised
#ifdef PARANOID
#ifdef PECULIAR_486
L_bugged_denorm_486:
pushl EX_INTERNAL|0x236
call EXCEPTION
popl %ebx
jmp L_exception_exit
#else
L_bugged_denorm:
pushl EX_INTERNAL|0x230
call EXCEPTION
popl %ebx
jmp L_exception_exit
#endif /* PECULIAR_486 */
L_bugged_round24:
pushl EX_INTERNAL|0x231
call EXCEPTION
popl %ebx
jmp L_exception_exit
L_bugged_round53:
pushl EX_INTERNAL|0x232
call EXCEPTION
popl %ebx
jmp L_exception_exit
L_bugged_round64:
pushl EX_INTERNAL|0x233
call EXCEPTION
popl %ebx
jmp L_exception_exit
L_norm_bugged:
pushl EX_INTERNAL|0x234
call EXCEPTION
popl %ebx
jmp L_exception_exit
L_entry_bugged:
pushl EX_INTERNAL|0x235
call EXCEPTION
popl %ebx
L_exception_exit:
mov $-1,%eax
jmp fpu_reg_round_special_exit
#endif /* PARANOID */
ENDPROC(FPU_round)
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