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18 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Low level programming language |
A programming language that is closely related to the CPU’s machine code |
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Instruction Set |
The list of all possible commands a particular CPU knows how to carry outmachine |
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Machine Code |
The binary code representing each of the instructions in the instructions set |
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Problems with Machine Code |
Difficult to work out sequence of 1’s and 0’s
Would only work on that CPU (different instruction sets) |
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Translator |
A program that converts source code into machine code |
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Translators are what.... |
Programs |
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Source Code |
The text of the program that the programmer writes |
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Simplest translator |
Assembler |
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What does an assembler do |
Converts assembly language to machine code |
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What type of level is assembly language |
Low |
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Assembly Language |
A low level language written using mnemonics |
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Mnemonic |
Acronym that represents an instruction in the CPU’s instruction set |
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Examples of Mnemonics |
LDR - load register STR - store CMP - compare |
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Why is it a low language |
Lowest level of detail Closest to machine code |
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Problems of writing programs in assembly language |
Limited range of instructions (every task has to be built up) Manage all your data (no string, int or actual numbers - only binary) + manage where to store in memory Debugging is hard, makes machine crash when to
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When to use Assembly Language |
Hardware drivers Programs on embedded systems |
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When is assembly language useful |
When program is very small Very fast Directly in control with I/O hardwares |
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High level languages examples |
Python Java Visual Basic |
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