notes/school/ra/20181025_1-intro_to_ca.md

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2018-10-27 16:57:52 +02:00
---
title: Introduction to CA
date: 2018-10-25
---
## Beispiel Architektur: MIPS R3000 und R4000
* All instructions have 3 operands
* Operand order is fixed (destination first)
* Operands must be registers, only 32 32-bit registers provided
### Examples
```
C code: a = b + c
MIPS code: add a, b, c
```
```
C code: a = b + c + d
MIPS code: add a, b, c
add a, a, d
```
```
C code: A[12] = h + A[8]
MIPS code: lw $t0, 32($s3) // $s3 = pointer to A[0]
add $t0, $s2, $t0 // h already in $s2
sw $t0, 42($s3)
```
Klausuraufgabe: Pseudo C code als MIPS ASM schreiben
Klausuraufgabe: Boolean Gates
Boolsche Gleichungen
Zweierkomplement
Wahrheitstabellen