fsub.s
Floating-Point Subtract Single-Precision
This instruction is defined by:
Synopsis
The fsub.s instruction performs the single-precision floating-point subtraction of fs2 from fs1 and writes the result in fd.
Decode Variables
Bits<5> fs2 = $encoding[24:20];
Bits<5> fs1 = $encoding[19:15];
Bits<3> rm = $encoding[14:12];
Bits<5> fd = $encoding[11:7];Execution
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Pruned, XLEN == 64
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Original
check_f_ok($encoding);
RoundingMode mode = rm_to_mode(rm, $encoding);
F[fd] = f32_sub(F[fs1], F[fs2], mode);check_f_ok($encoding);
RoundingMode mode = rm_to_mode(rm, $encoding);
F[fd] = f32_sub(F[fs1], F[fs2], mode);