Unsigned divide
This instruction divides the first unsigned source register value by the second unsigned source register value, and writes the result to the destination register. Dividing by zero writes the value zero to the destination register. The condition flags are not affected.
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| sf | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | Rm | 0 | 0 | 0 | 0 | 1 | 0 | Rn | Rd | ||||||||||||
| S | o1 | ||||||||||||||||||||||||||||||
let d : integer{} = UInt(Rd); let n : integer{} = UInt(Rn); let m : integer{} = UInt(Rm); let datasize : integer{} = 32 << UInt(sf);
| <Wd> |
Is the 32-bit name of the general-purpose destination register, encoded in the "Rd" field. |
| <Wn> |
Is the 32-bit name of the first general-purpose source register, encoded in the "Rn" field. |
| <Wm> |
Is the 32-bit name of the second general-purpose source register, encoded in the "Rm" field. |
| <Xd> |
Is the 64-bit name of the general-purpose destination register, encoded in the "Rd" field. |
| <Xn> |
Is the 64-bit name of the first general-purpose source register, encoded in the "Rn" field. |
| <Xm> |
Is the 64-bit name of the second general-purpose source register, encoded in the "Rm" field. |
let operand1 : bits(datasize) = X{}(n); let operand2 : bits(datasize) = X{}(m); let dividend : integer = UInt(operand1); let divisor : integer = UInt(operand2); var result : integer; if divisor == 0 then result = 0; else result = dividend DIVRM divisor; end; X{datasize}(d) = result[datasize-1:0];
2026-03_rel 2026-03-26 20:48:11
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