Simple Computer Tool

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Code (assembly or bytecode)

// Comments start with // or #
// Comments may appear on the same line as instructions
//
// Assembly instructions are specified like so:
//     MNEMONIC OP[, OP[, OP]]
//
// Bytecode instructions are specified as 4 hex digits
//
// Assembly and bytecode may be mixed at will
// (useful when implementing new instructions)
//
// Values are given in C-style syntax:
//     0xBEEF for base 16
//     1984   for base 10
//     \007   for base 8
// with an optional - before the radix specifier
// prefix to denote a negative value.
//
// Additional whitespace is allowed anywhere.
//
// To keep backwards compatibility, values may be prefixed with 'r',
// and opcodes may be lower case.

//  Starter source code program for ECE 2504 Spring 2013
//  Project 4
//
//  Add your header comments (name, date, etc.) here.
//
//  Do not change the following segment of code from here
//  to the comment "CHANGE HERE" below.
ldi r0, 7
adi r0, r0, 6
jmp r0
// The following set of load instructions
// read the final values of the variables in
// memory locations 2-5 into r1-r5 so that we
// can see them on the LEDs
// Your code must jump to this point after it has
// stored the results in data memory. You should jump
// to location 3.
ldi r1, 2
ld r2, r1
inc r1, r1
ld r3, r1
inc r1, r1
ld r4, r1
inc r1, r1
ld r5, r1
// Now loop forever
ldi r0, 0
// The address of this brz is the one used in validation: Address C.
brz r0, 0
// You are permitted to add code after this point
// CHANGE HERE and beyond
// Your last instruction should be a jump to location 3
// in order to read the variables into registers r2-r5.
ldi r0, 3
jmp r0

Simple Computer Tool

Code (assembly or bytecode)

(dis)assembler output

Offset Radix

Comment Source

Assembly Format

Simulation