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spelling and moving around chapters
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Perry Kivolowitz
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7 changed files with 50 additions and 35 deletions
46
.vscode/settings.json
vendored
46
.vscode/settings.json
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@ -1,21 +1,35 @@
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{
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"cSpell.words": [
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"AARCH",
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"argc",
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"argv",
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"asciz",
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"cout",
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"csel",
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"Formulus",
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"iostream",
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"memcpy",
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"pseudocode",
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"stringstream",
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"strncpy",
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"struct",
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"structs"
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],
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"AARCH",
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"argc",
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"argv",
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"asciz",
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"cbnz",
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"cout",
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"csel",
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"fizzbuzz",
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"fname",
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"Formulus",
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"funcs",
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"iostream",
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"ldrb",
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"ldrh",
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"lname",
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"memcpy",
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"pimm",
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"pseudocode",
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"regs",
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"simm",
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"smaddl",
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"stringstream",
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"strncpy",
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"struct",
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"structs"
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],
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"markdownlint.config": {
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"MD024":false
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}
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},
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"cSpell.ignoreWords": [
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"foov"
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]
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}
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19
README.md
19
README.md
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@ -45,15 +45,16 @@ the 64 bit ARM Instruction Set Architecture (ISA).
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| 1 | [Hello World](./section_1/hello_world/README.md) |
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| 2 | [If Statements](./section_1/if/README.md) |
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| 3 | Loops |
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| 3 a | [ While Loops](./section_1/while/README.md) |
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| 3 b | [ For Loops](./section_1/for/README.md) |
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| 3 c | [ Implementing Continue](./section_1/for/README.md#implementing-a-continue)
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| 3 d | [ Implementing Break](./section_1/for/README.md#implementing-a-break)
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| 4 | [Interlude - Registers](./section_1/regs/README.md) |
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| 5 | [Interlude - Load and Store](./section_1/regs/ldr.md) |
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| 6 | [Calling and Returning From Functions](./section_1/funcs/README.md) |
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| 7 | [Passing Parameters To Functions](./section_1/funcs/README2.md) |
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| 8 | [FizzBuzz - a Complete Program](./section_1/fizzbuzz/README.md) |
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| 3 a | [....While Loops](./section_1/while/README.md) |
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| 3 b | [....For Loops](./section_1/for/README.md) |
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| 3 c | [....Implementing Continue](./section_1/for/README.md#implementing-a-continue)
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| 3 d | [....Implementing Break](./section_1/for/README.md#implementing-a-break)
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| 4 | Interludes |
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| 4 a | [....Registers](./section_1/regs/README.md) |
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| 4 b | [....Load and Store](./section_1/regs/ldr.md) |
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| 5 | [Calling and Returning From Functions](./section_1/funcs/README.md) |
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| 6 | [Passing Parameters To Functions](./section_1/funcs/README2.md) |
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| 7 | [FizzBuzz - a Complete Program](./section_1/fizzbuzz/README.md) |
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## Section 2 - Stuff
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# Section 1 / Chapter 8 / FizzBuzz
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# Section 1 / Chapter 7 / FizzBuzz
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In this chapter we build the classic tech interview question: FizzBuzz.
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# Section 1 / Chapter 6 / Calling and Returning From Functions
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# Section 1 / Chapter 5 / Calling and Returning From Functions
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Calling functions, passing parameters to them and receiving back return values is basic to using `C` and and `C++`. Calling methods (which are functions connected to classes) is similar but with enough differences to warrant its own discussion to be provided later in the chapter on [structs](../struct/structs.md).
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# Section 1 / Chapter 7 / Passing Parameters To Functions
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# Section 1 / Chapter 6 / Passing Parameters To Functions
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Up to 8 parameters can be passed directly via registers. Each parameter can be up to the size of an address, long or double (8 bytes). If you need to pass more than 8 parameters or you need to pass parameters which are larger than 8 bytes or are `structs`, you would use a different technique described later.
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# Section 1 / Chapter 4 / Interlude - Registers
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# Section 1 / Chapter 4 a / Interlude - Registers
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We have discussed and used registers in the previous chapters without explanation. This chapter
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introduces the concept of registers and explains why registers are critical.
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# Section 1 / Chapter 5 / Interlude - Load and Store
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# Section 1 / Chapter 4 b / Interlude - Load and Store
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In this section we will review the `ldr` and `str` families of instructions.
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@ -487,7 +487,7 @@ of 8.
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smaddl x4, w1, w5, x3 // initialize end_ptr // 19
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```
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`w1` (the length) will be multipled by `w5` (the size of each array member), added to `x3` (the base address of the array) and the result will be placed into `x4`. This assembly language instruction implements this in C:
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`w1` (the length) will be multiplied by `w5` (the size of each array member), added to `x3` (the base address of the array) and the result will be placed into `x4`. This assembly language instruction implements this in C:
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```c
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struct Person * end_ptr = people + length; /* 20 */
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