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Construct exception masks at compile time

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instead of or'ing in bits at run time.

From-SVN: r12085
This commit is contained in:
Jim Wilson 1996-05-23 16:01:28 -07:00
parent 118751b1c3
commit 8e56feedf2
1 changed files with 10 additions and 20 deletions
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30
gcc/config/m68k/lb1sf68.asm
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@ -464,8 +464,7 @@ ROUND_TO_MINUS = 3 | round result towards minus infinity
Ld$den:
| Return and signal a denormalized number
orl d7,d0
movew IMM (UNDERFLOW),d7
orw IMM (INEXACT_RESULT),d7
movew IMM (INEXACT_RESULT+UNDERFLOW),d7
movew IMM (DOUBLE_FLOAT),d6
jmp $_exception_handler
@ -475,8 +474,7 @@ Ld$overflow:
movel IMM (0x7ff00000),d0
movel IMM (0),d1
orl d7,d0
movew IMM (OVERFLOW),d7
orw IMM (INEXACT_RESULT),d7
movew IMM (INEXACT_RESULT+OVERFLOW),d7
movew IMM (DOUBLE_FLOAT),d6
jmp $_exception_handler
@ -484,8 +482,7 @@ Ld$underflow:
| Return 0 and set the exception flags
movel IMM (0),d0
movel d0,d1
movew IMM (UNDERFLOW),d7
orw IMM (INEXACT_RESULT),d7
movew IMM (INEXACT_RESULT+UNDERFLOW),d7
movew IMM (DOUBLE_FLOAT),d6
jmp $_exception_handler
@ -493,8 +490,7 @@ Ld$inop:
| Return a quiet NaN and set the exception flags
movel IMM (QUIET_NaN),d0
movel d0,d1
movew IMM (INVALID_OPERATION),d7
orw IMM (INEXACT_RESULT),d7
movew IMM (INEXACT_RESULT+INVALID_OPERATION),d7
movew IMM (DOUBLE_FLOAT),d6
jmp $_exception_handler
@ -503,8 +499,7 @@ Ld$div$0:
movel IMM (0x7ff00000),d0
movel IMM (0),d1
orl d7,d0
movew IMM (DIVIDE_BY_ZERO),d7
orw IMM (INEXACT_RESULT),d7
movew IMM (INEXACT_RESULT+DIVIDE_BY_ZERO),d7
movew IMM (DOUBLE_FLOAT),d6
jmp $_exception_handler
@ -1719,8 +1714,7 @@ ROUND_TO_MINUS = 3 | round result towards minus infinity
Lf$den:
| Return and signal a denormalized number
orl d7,d0
movew IMM (UNDERFLOW),d7
orw IMM (INEXACT_RESULT),d7
movew IMM (INEXACT_RESULT+UNDERFLOW),d7
movew IMM (SINGLE_FLOAT),d6
jmp $_exception_handler
@ -1729,24 +1723,21 @@ Lf$overflow:
| Return a properly signed INFINITY and set the exception flags
movel IMM (INFINITY),d0
orl d7,d0
movew IMM (OVERFLOW),d7
orw IMM (INEXACT_RESULT),d7
movew IMM (INEXACT_RESULT+OVERFLOW),d7
movew IMM (SINGLE_FLOAT),d6
jmp $_exception_handler
Lf$underflow:
| Return 0 and set the exception flags
movel IMM (0),d0
movew IMM (UNDERFLOW),d7
orw IMM (INEXACT_RESULT),d7
movew IMM (INEXACT_RESULT+UNDERFLOW),d7
movew IMM (SINGLE_FLOAT),d6
jmp $_exception_handler
Lf$inop:
| Return a quiet NaN and set the exception flags
movel IMM (QUIET_NaN),d0
movew IMM (INVALID_OPERATION),d7
orw IMM (INEXACT_RESULT),d7
movew IMM (INEXACT_RESULT+INVALID_OPERATION),d7
movew IMM (SINGLE_FLOAT),d6
jmp $_exception_handler
@ -1754,8 +1745,7 @@ Lf$div$0:
| Return a properly signed INFINITY and set the exception flags
movel IMM (INFINITY),d0
orl d7,d0
movew IMM (DIVIDE_BY_ZERO),d7
orw IMM (INEXACT_RESULT),d7
movew IMM (INEXACT_RESULT+DIVIDE_BY_ZERO),d7
movew IMM (SINGLE_FLOAT),d6
jmp $_exception_handler