add $dest, $src1, $src2
Add two registers and store the result in another.
Format
This is an RR format instrucion.
| 31 - 26 |
25 - 21 |
20 - 16 |
15 - 11 |
10 - 0 |
| 000100 |
dest |
src1 |
src2 |
00000000000 |
Functional Description
The add instruction adds two operand registers src1 and src2 using two's complement arithmetic,
and stores the
result in dest.
dest = src1 + src2;
Side Effects
If overflow occurs, the exception cause
register is logically ORed with the value 0x1, and the exception
PC (EPC) register is set to the program counter of the offending
instruction.
Control then traps to an operating system handler.
Processor Mode
This is a user-level instruction.
Last modified: Sun Feb 25 12:46:53 CST 2001