SPIM for Hardware and Software Laboratory Project 3 (Software) / 計算機科学実験及び演習3 (ソフトウェア) spim-for-kuis is a fork of SPIM, and it implements some useful commands for testing and benchmarking.
brew install ymyzk/ymyzk/spim-for-kuis
spimNote: spim-for-kuis conflicts with spim. If you have already installed spim, run brew unlink spim before installing spim-for-kuis.
cd ./spim/
make spim install
./build/bin/spimYou can specify the installation directory with DEST_DIR:
cd ./spim/
make DEST_DIR=~/.local spim install
~/.local/bin/spimspim-for-kuis implements some useful options for testing & benchmarking.
You can see the executed instructions with -show_instructions option.
$ ./build/bin/spim -show_instructions -file ../helloworld.s
Loaded: ./build/share/spim/exceptions.s
[0x00400000] 0x8fa40000 lw $4, 0($29) ; 183: lw $a0 0($sp) # argc
[0x00400004] 0x27a50004 addiu $5, $29, 4 ; 184: addiu $a1 $sp 4 # argv
[0x00400008] 0x24a60004 addiu $6, $5, 4 ; 185: addiu $a2 $a1 4 # envp
[0x0040000c] 0x00041080 sll $2, $4, 2 ; 186: sll $v0 $a0 2
[0x00400010] 0x00c23021 addu $6, $6, $2 ; 187: addu $a2 $a2 $v0
[0x00400014] 0x0c100009 jal 0x00400024 [main] ; 188: jal main
[0x00400024] 0x34020004 ori $2, $0, 4 ; 40: li $v0, 4 # syscall 4 (print_str)
[0x00400028] 0x3c041001 lui $4, 4097 [msg] ; 41: la $a0, msg # argument: string
[0x0040002c] 0x0000000c syscall ; 42: syscall # print the string
Hello World
[0x00400030] 0x8f898000 lw $9, -32768($28) ; 43: lw $t1, foobar
[0x00400034] 0x03e00008 jr $31 ; 45: jr $ra # retrun to caller
[0x00400018] 0x00000000 nop ; 189: nop
[0x0040001c] 0x3402000a ori $2, $0, 10 ; 191: li $v0 10
[0x00400020] 0x0000000c syscall ; 192: syscall # syscall 10 (exit)
Remark: The first part
[0x00400000] 0x8fa40000 lw $4, 0($29) ; 183: lw $a0 0($sp) # argc
[0x00400004] 0x27a50004 addiu $5, $29, 4 ; 184: addiu $a1 $sp 4 # argv
[0x00400008] 0x24a60004 addiu $6, $5, 4 ; 185: addiu $a2 $a1 4 # envp
[0x0040000c] 0x00041080 sll $2, $4, 2 ; 186: sll $v0 $a0 2
[0x00400010] 0x00c23021 addu $6, $6, $2 ; 187: addu $a2 $a2 $v0
[0x00400014] 0x0c100009 jal 0x00400024 [main] ; 188: jal main
and the last part
[0x00400018] 0x00000000 nop ; 189: nop
[0x0040001c] 0x3402000a ori $2, $0, 10 ; 191: li $v0 10
[0x00400020] 0x0000000c syscall ; 192: syscall # syscall 10 (exit)
are appended by spim.
Example: [0x0040004c] 0x34080000 ori $8, $0, 0 ; 15: li $t0, 0
[0x0040004c]: Memory address of the instruction0x34080000: Encoding of the instructionori $8, $0, 0: Executed instruction; 15: li $t0, 0: Source instruction
Remark: Some instructions (e.g. li) are pseudo instructions which are translated into other instructions (e.g. ori) on parsing.
If your terminal supports ANSI colors, you can get colored output with -color -show_instructions option
You can see the number of executed instructions with -show_stats option.
Example:
$ ./build/bin/spim -show_stats -file ../helloworld.s
Loaded: ./build/share/spim/exceptions.s
Hello World
--- Summary ---
# of executed instructions
- Total: 14
- Memory: 2
- Others: 12
--- Details ---
addiu 2
addu 1
jal 1
jr 1
lui 1
lw 2
ori 2
sll 2
syscall 2
MIT License. See LICENSE for more information.