METHODS AND INSTRUCTIONS FOR A 32-BIT ARITHMETIC SUPPORT USING 16-BIT MULTIPLY AND 32-BIT ADDITION

摘要

Instructions for 32-bit arithmetic support using 16-bit multiply and 32-bit addition without a barrel shifter. Illustrative instructions include operations that include receiving a first 32-bit operand, receiving a second 32-bit operand, shifting the second 32-bit operand right 16 or 15 bits to obtain a shifted second 32-bit operand, and adding the shifted second 32-bit operand and the first 32-bit operand to generate a 32-bit sum.