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Software Considerations A–15
FNEG Fx, Fy No-exception generic floating
negation
CPYSN Fx, Fx, Fy
FNOP Floating-point no-op CPYS F31, F31, F31
MOV Lit, Rx Move 16-bit sign-extended
literal to Rx
LDA Rx,lit(R31)
MOV {Rx/Lit8}, Ry Move Rx/8-bit zero-extended
literal to Ry
BIS R31,{Rx/Lit8},Ry
MF_FPCR Fx Move from FPCR MF_FPCR Fx, Fx, Fx
MT_FPCR Fx Move to FPCR MT_FPCR Fx, Fx, Fx
NEGF Fx, Fy Negate F_floating SUBF F31, Fx, Fy
NEGF/S Fx, Fy Negate F_floating, semi-precise SUBF/S F31, Fx, Fy
NEGG Fx, Fy Negate G_floating SUBG F31, Fx, Fy
NEGG/S Fx, Fy Negate G_floating,
semi-precise
SUBG/S F31, Fx, Fy
NEGL {Rx/Lit8}, Ry Negate longword SUBL R31,{Rx/Lit},Ry
NEGL/V {Rx/Lit8}, Ry Negate longword with
overflow detection
SUBL/V R31, {Rx/Lit}, Ry
NEGQ {Rx/Lit8}, Ry Negate quadword SUBQ R31, {Rx/Lit}, Ry
NEGQ/V {Rx/Lit8}, Ry Negate quadword with
overflow detection
SUBQ/V R31, {Rx/Lit}, Ry
NEGS Fx, Fy Negate S_floating SUBS F31, Fx, Fy
NEGS/SU Fx, Fy Negate S_floating, software
with underflow detection
SUBS/SU F31, Fx, Fy
NEGS/SUI Fx, Fy Negate S_floating, software
with underflow and inexact
result detection
SUBS/SUI F31, Fx, Fy
NEGT Fx, Fy Negate T_floating SUBT F31, Fx, Fy
NEGT/SU Fx, Fy Negate T_floating, software
with underflow detection
SUBT/SU F31, Fx, Fy
NEGT/SUI Negate T_floating, software
with underflow and inexact
result detection
SUBT/SUI F31,Fx, Fy
NOP Integer no-op BIS R31, R31, R31
NOT {Rx/Lit8}, Ry Logical NOT of Rx/8-bit
zero-extended literal storing
results in Ry
ORNOT R31, {Rx/Lit}, Ry
Table A–2: Decodable Pseudo-Operations (Stylized Code Forms) (Continued)
Pseudo-Operation
in Listing Meaning
Actual Instruction
Encoding