- Synopsis
-
Compute multiply-subtract result of double-word operands.
- Mnemonic
-
th.muls rd, rs1, rs2
- Encoding
{reg:[
{ bits: 7, name: 0xb, attr: ['custom-0, 32 bit'] },
{ bits: 5, name: 'rd' },
{ bits: 3, name: 0x1, attr: ['Arithmetic'] },
{ bits: 5, name: 'rs1' },
{ bits: 5, name: 'rs2' },
{ bits: 2, name: 0x1 },
{ bits: 5, name: 0x04 },
]}
- Description
-
This instruction computes the multiply-subtract result of the provided double-word operands.
- Operation
M := reg[rs1] * reg[rs2]
reg[rd] := reg[rd] - M- Permission
-
This instruction can be executed in all privilege levels.
- Exceptions
-
This instruction does not trigger any exceptions.
- Included in
| Extension |
|---|
XTheadMac ([xtheadmac]) |