arydevy / avcpu2032

Arydev's Virtual CPU 20(GP registers) 32(bits)

avcpu2032

The AVCP2032 is a BigEndian 32bit virtual cpu created by arydev

Building

To compile the emulator You need gcc ans a POSX OS (Mac,GNU/Linux,BDS...)

$ make

Specification

The AVCP2032 has 20 General Porpose registers 5 32bit 5 16bit 5 8bit and 5 float

Name	Type	Size	Description
PC	PT	32bit	A pointer to a location in memory
SP	PT	32bit	Stack Pointer
Flags	ST	16bit	Bits represent flags
X0-X4	GP	32bit	General Porpose 32 bit registers
Y0-Y4	GP	16bit	General Porpose 16 bit registers
W0-W4	GP	8bit	General Porpose 8 bit registers
F0-F4	FL	32bit	32bit Floting point registers

Instruction set

The instruction set is not finished it may change

OP	Memonic	PseudoInstruction	Description
0000	NOP	NOP	No Operation
1000	EXT	EXT 0	Exit and return number
2000	HLT	HLT	Halt
3000	ADD	ADD X0, 19	ADD number to register
4000	ADD	ADD X0, X1	Add register to register
5000	ADDC	ADDC X0, 5	Add with carry
6000
7000	SUB	SUB X0, 5	Subtract num from register
8000	SUM	SUM X0, X3	Subtract reg from reg
9000	MUL	MUL X1, 2	Multiply reg by num
A000	DIV	DIV X3, 5	Divide reg by num
B000	AND	AND X0, 100	And between reg and num
C000	OR	OR X0, 50	Or between reg and num
D000	NOT	NOT X0, 60	Not between reg and num
E000	XOR	XOR X0, 34	Xor between reg and num
F000	NOR	NOR X0, 64	Nor between reg and num
1100	MV	MV X0, 5	Move data to register
1200	MV	MV X0, X1	Move Register to register
1300	LD	LD X0, 0xff	Load Address to register
1400	LD	LD X0, [X3]	Load from addres in r to r
1500	STR	STR 0xff, 5	Store data in address
1600	STR	STR 0xff, X2	Store Register to address
1700	STR	STR [X2],X0	Store in r address register
1800	STR	STR [X2],10	Store in r addres data
1900	PUSH	PUSH X0	Push register to the stack
2100	PUSH	PUSH 65	Push data to stack
2200	POP	POP X0	Pop from stack to register