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testcpu's Introduction

TestCpu

This is a pet project to implement a cpu emulator in rust.

Instructions

First Byte
Nop 0x00 -
Relative Jump 0x01 Adress32
Short Jump 0x02 Adress16
Long Jump 0x03 Adress32
Store 0x0A 2bit Wordsize, 1Bit special Reg, 5Bit Register Index; Adress32
Load 0x0B 2bit Wordsize, 1Bit special Reg, 5Bit Register Index; Adress32
Move 0x0C 1Byte lenght; Adress32 source; Adress32 destination
Copy 0x0D 2Bit unused, 1Bit special Reg, 5Bit Source Reg; 2Bit unused, 1Bit special Reg, 5Bit target Reg
Add 0x10 1Bit unused, 5Bit Target Reg, 5Bit A Reg, 5Bit B Reg
Sub 0x11 1Bit unused, 5Bit Target Reg, 5Bit A Reg, 5Bit B Reg
Mul 0x12 1Bit unused, 5Bit Target Reg, 5Bit A Reg, 5Bit B Reg
Div 0x13 1Bit unused, 5Bit Target Reg, 5Bit A Reg, 5Bit B Reg
Mod 0x14 1Bit unused, 5Bit Target Reg, 5Bit A Reg, 5Bit B Reg
Or 0x15 1Bit unused, 5Bit Target Reg, 5Bit A Reg, 5Bit B Reg
And 0x16 1Bit unused, 5Bit Target Reg, 5Bit A Reg, 5Bit B Reg
Xor 0x17 1Bit unused, 5Bit Target Reg, 5Bit A Reg, 5Bit B Reg

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