Commit 8e56feed by Jim Wilson

Construct exception masks at compile time

instead of or'ing in bits at run time.

From-SVN: r12085
parent 118751b1
......@@ -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
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment