| Machine Code Monitor |
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| memory management software | |
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| home computer software | |
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A machine code monitor (aka Machine Language monitor) is software built into or separately available for various computers, allowing the user to enter commands to view and change Memory Locations on the machine, with options to load and save memory contents from/to Secondary Storage . Machine code monitors became something of a mass software product in the ") hand-assembled Opcode s and operands into program memory). Even after full-featured Assembler s became readily available, a machine code monitor was indepensible for Debug ging programs. The usual technique was to set break points in the code being worked on (e.g., with a BRK instruction in 6502 assembly language), start the program and when the Processor hit the break point, control would be transferred to the machine code monitor. Typically this would trigger a Register Dump and then the monitor would await Programmer Input . The general decline in scratch-written Assembly Language Program s has made the use of a machine code monitor somewhat of a lost art. On most systems, where higher level languages are employed, Debugger s are used to present a more abstract (and friendly) view of what is happening within a program. |
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