Yaps: Yet another processor simulator

A processor simulator, which is designed for readability and scalability rather than execution speed.
It is aimed at simulating various ISAs and Microarchitectures.

Install

$ git clone git://github.com/TakayukiMATSUMURA/yaps  
Cloning into 'yaps'...  
remote: Counting objects: 160, done.  
remote: Compressing objects: 100% (53/53), done.  
remote: Total 160 (delta 105), reused 155 (delta 104), pack-reused 0  
Receiving objects: 100% (160/160), 243.08 KiB | 249.00 KiB/s, done.  
Resolving deltas: 100% (105/105), done.  
Checking connectivity... done.  
$ cd yaps  
$ make  
g++ -std=c++11 -O3 -o Yaps main.cc loader/simloader.cc MIPS/ISA.cc MIPS/RegisterFile.cc  
./Yaps  
Yaps: Yet another processor simulator  
usage: Yaps [options] binaryFileName  
options  
 -e [num][kmg]: stop simulation after num cycles executed  
 -d 1: put the architectural state after simulation  
    2: put all the instructions executed  
 -i: put the instruction mix after simulation

Hello World

$ make run
./Yaps -i sample/hello.elf
Yaps: Yet Another Processor Simulator
i mix mode.
Hello World
system call stop
##### Simulation Results #####
inst count: 2834
cycle count: 2876
IPC: 0.985396
MIPS: 0.65526
[ 1] addiu           1011 ( 35.153%)
[ 2] bnel             346 ( 12.031%)
[ 3] sb               319 ( 11.092%)
[ 4] lw               280 (  9.736%)
[ 5] lbu              191 (  6.641%)
[ 6] addu             170 (  5.911%)
[ 7] sw               158 (  5.494%)
[ 8] beq               58 (  2.017%)
[ 9] jalr              50 (  1.739%)
[10] jr                49 (  1.704%)
[11] bne               48 (  1.669%)
[12] lui               45 (  1.565%)
[13] nop               42 (  1.460%)
[14] andi              14 (  0.487%)
[15] subu              13 (  0.452%)
[16] lhu               12 (  0.417%)
     lb                12 (  0.417%)
[17] beql               8 (  0.278%)
[18] sll                6 (  0.209%)
[19] sltu               5 (  0.174%)
[20] syscall            4 (  0.139%)
     sra                4 (  0.139%)
     bgezal             4 (  0.139%)
[21] xor                3 (  0.104%)
     sltiu              3 (  0.104%)
     sh                 3 (  0.104%)
     movz               3 (  0.104%)
[22] teq                2 (  0.070%)
     slti               2 (  0.070%)
     ori                2 (  0.070%)
     mflo               2 (  0.070%)
     divu               2 (  0.070%)
[23] nor                1 (  0.035%)
     mul                1 (  0.035%)
     movn               1 (  0.035%)
     bltz               1 (  0.035%)
     and                1 (  0.035%)
[--] total           2876 (100.000%)

Annotation

The Followings are modified and redistributed.

/loader/elf.h
from glibc

/loader/simloader.h
/loader/simloader.cc
/MIPS/SystemCallExecutor.h
from SimMips