Freescale Semiconductor MC68881 - Conditional Predicate Evaluation Responses

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Table 4-20. Conditional Predicate Evaluation Responses
Conditional MC68~81/
Mnemonic Definition MC68882
Predicate Response
000000 F False Note 1
000001 EQ
EquaJ Note 1
000010 OGT Ordered Greater Then Note 1
000011 OGE Ordered Greeter Than or Equal Note 1
000100 OLT Ordered Less Than Note 1
000101 OLE Ordered Less Than or Equal Note 1 "t
F
000110 OGL Ordered Greater Than or Less Than Note 1
000111 OR Ordered Note 1
001000 UN Unordered Note 1 "t"
001001 UEQ Unordered or Equal Note 1
001010 UGT Unordered or Greater Than Note 1
001011 UGE Unordered or Greater Than or Equal Note 1
001100 ULT Unordered or Less Than Note 1
001101 ULE Unordered or Less Than or Equal Note 1
001110 NE Not Equal Note 1
001111
T True Note I
010000 SF Signaling False Note 2
010001 SEe Signaling Equal Note 2
010010 GT Greater Than Note 2
010011 GE Greater Than or Equal Note 2
010100 LT Less Than Note 2
010101 LE Less Than or Equal Note 2
010110 GL Greater Than or Less Than Note 2
010111 GLE Greater Than or Less Than or Equal Note 2
011000 NGLE Not (Greater Than or Less Than or Equal) Note 2
011001 NGL Not (Greater Than or Less Than) Note 2
011010 NLE Not (Less Than or Equal) Note 2
011011 NLT Not (Less Than) Note 2
011100 NGE Not (Greater Than or Equal) Note 2
011101 NGT Not (Greater Than) Note 2
I . .
011110 SNE j Signahng Not Equal 1 Note 2
I . .
011111 ST i Signaling Tru e . i Note 2
1XXXXX
NOTES:
(Undefined, Reserved} i
Note 3
1. Indicate the condition true or false result by using the null (CA=0) primitive.
2. If the NAN condition code bit is set, then set the BSUN bit in the FPSR. If the BSUN trap is enabled, then return the
take pro-instruction exception primitive with the BSUN vector number; otherwise, indicate the condition true false result
by using the nutt (CA=0) primitive.
3. Not used, redundant encodings with 0X×XXX. No F-line trap is taken if these bit patterns
are used. To ensure com-
patibility with future devices,
assemblers and compilers should use the 0XXXXX encodings.
FREESCALE
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MC68881/MC68882 USER'S MANUAL