Example Listing of Assembly Language Source Code
| Address | Label | Instruction (AT&T syntax) | Object code |
|---|---|---|---|
| .begin | |||
| .org 2048 | |||
| a_start | .equ 3000 | ||
| 2048 | ld length,% | ||
| 2064 | be done | 00000010 10000000 00000000 00000110 | |
| 2068 | addcc %r1,-4,%r1 | 10000010 10000000 01111111 11111100 | |
| 2072 | addcc %r1,%r2,%r4 | 10001000 10000000 01000000 00000010 | |
| 2076 | ld %r4,%r5 | 11001010 00000001 00000000 00000000 | |
| 2080 | ba loop | 00010000 10111111 11111111 11111011 | |
| 2084 | addcc %r3,%r5,%r3 | 10000110 10000000 11000000 00000101 | |
| 2088 | done: | jmpl %r15+4,%r0 | 10000001 11000011 11100000 00000100 |
| 2092 | length: | 20 | 00000000 00000000 00000000 00010100 |
| 2096 | address: | a_start | 00000000 00000000 00001011 10111000 |
| .org a_start | |||
| 3000 | a: |
Example of a selection of instructions (for a virtual computer) with the corresponding address in memory where each instruction will be placed. These addresses are not static, see memory management. Accompanying each instruction is the generated (by the assembler) object code that coincides with the virtual computer's architecture (or ISA).
Read more about this topic: Assembly Language
Famous quotes containing the words assembly, language, source and/or code:
“Our assembly being now formed not by ourselves but by the goodwill and sprightly imagination of our readers, we have nothing to do but to draw up the curtain ... and to discover our chief personage on the stage.”
—Sarah Fielding (17101768)
“I am always sorry when any language is lost, because languages are the pedigree of nations.”
—Samuel Johnson (17091784)
“Man is a stream whose source is hidden. Our being is descending into us from we know not whence. The most exact calculator has no prescience that somewhat incalculable may not balk the very next moment. I am constrained every moment to acknowledge a higher origin for events than the will I call mine.”
—Ralph Waldo Emerson (18031882)
“...I had grown up in a world that was dominated by immature age. Not by vigorous immaturity, but by immaturity that was old and tired and prudent, that loved ritual and rubric, and was utterly wanting in curiosity about the new and the strange. Its era has passed away, and the world it made has crumbled around us. Its finest creation, a code of manners, has been ridiculed and discarded.”
—Ellen Glasgow (18731945)