TSK3000A Core Instruction - MULT

Instruction:

Multiply Word

Assembler Format:

mult rC, rA, rB

Example:

mult $3, $4, $5

Description:

Multiplies the contents of GPR rA by the contents of GPR rB, treating both operands as 32-bit two's complement values. The low-order word of the multiplication result is put in special register LO and also in GPR rC. The high-order word of the result is put in special register HI.

If rC is omitted in assembly language, $0 is used as the default value.

This instruction cannot raise an integer overflow exception.

Operation:

HILO <-- (Signed) rA * (Signed) rB

Instruction Type:

R-Type

Instruction Fields:

rA = Register index of operand A

rB = Register index of operand B

rC = Register index of destination