SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Unsigned Division of Two Register Values
DIVU src1, src2, dst
Functional unit = M
32 bit
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 13 | 12 | 10 | 9 | 7 | 6 | 0 |
x | x | x | x | x | x | x | x | x | x | x | 0 | 1 | 1 | 0 | 1 | dst | src2 | src1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
3 | 3 | 3 | opcode |
Unsigned division of src1 and src2 and store result to dst. Divide by 0 raises UNDEF interrupt, dst is written with 0, CSR:EQ gets set.
CSR[2]EQ = (dst == 0)
dst = src2 / src1
14 execute cycles. This is a blocking multi-execute cycle instruction.