Power ISA™ Version 2.03 - Power.org

Version 2.03
Vector Multiply Halfwords, Odd, Guarded,
Unsigned, Modulo, Integer and
Accumulate
EVX-form
evmhogumiaa RT,RA,RB
4 RT RA RB 1324
0 6 11 16 21 31
Vector Multiply Halfwords, Odd, Guarded,
Unsigned, Modulo, Integer and
Accumulate Negative
EVX-form
evmhogumian RT,RA,RB
4 RT RA RB 1452
0 6 11 16 21 31
temp 0:31 (RA) 48:63 × ui (RB) 48:63
temp 0:63 EXTZ(temp 0:31 )
RT 0:63 (ACC) 0:63 + temp 0:63
ACC 0:63 (RT) 0:63
The corresponding low odd-numbered halfword
unsigned-integer elements in RA and RB are multiplied.
The intermediate product is zero-extended to 64
bits then added to the contents of the 64-bit accumulator,
and the result is placed in RT and into the accumulator.
Special Registers Altered:
ACC
temp 0:31 (RA) 48:63 × ui (RB) 48:63
temp 0:63 EXTZ(temp 0:31 )
RT 0:63 (ACC) 0:63 - temp 0:63
ACC 0:63 (RT) 0:63
The corresponding low odd-numbered halfword
unsigned-integer elements in RA and RB are multiplied.
The intermediate product is zero-extended to 64
bits then subtracted from the contents of the 64-bit
accumulator, and the result is placed in RT and into the
accumulator.
Special Registers Altered:
ACC
Vector Multiply Halfwords, Odd, Signed,
Modulo, Fractional
EVX-form
Vector Multiply Halfwords, Odd, Signed,
Modulo, Fractional to Accumulator
EVX-form
evmhosmf RT,RA,RB
evmhosmfa RT,RA,RB
4 RT RA RB 1039
0 6 11 16 21 31 4 RT RA RB 1071
0 6 11 16 21 31
RT 0:31 (RA) 16:31 × sf (RB) 16:31
RT 32:63 (RA) 48:63 × sf (RB) 48:63
The corresponding odd-numbered, halfword signed
fractional elements in RA and RB are multiplied. Each
product is placed into the corresponding words of RT.
Special Registers Altered:
None
RT 0:31 (RA) 16:31 × sf (RB) 16:31
RT 32:63 (RA) 48:63 × sf (RB) 48:63
ACC 0:63 (RT) 0:63
The corresponding odd-numbered, halfword signed
fractional elements in RA and RB are multiplied. Each
product is placed into the corresponding words of RT.
and into the accumulator.
Special Registers Altered:
ACC
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Power ISA -- Book I