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6.56.11.1 Paired-Single Arithmetic
The table below lists the v2sf operations for which hardware
support exists. a, b and c are v2sf
values and x is an integral value.
| C code | MIPS instruction |
a + b | add.ps |
a - b | sub.ps |
-a | neg.ps |
a * b | mul.ps |
a * b + c | madd.ps |
a * b - c | msub.ps |
-(a * b + c) | nmadd.ps |
-(a * b - c) | nmsub.ps |
x ? a : b | movn.ps/movz.ps |
Note that the multiply-accumulate instructions can be disabled
using the command-line option -mno-fused-madd.
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