diff options
Diffstat (limited to 'data/examples/test3.asm')
-rw-r--r-- | data/examples/test3.asm | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/data/examples/test3.asm b/data/examples/test3.asm new file mode 100644 index 0000000..69f73f3 --- /dev/null +++ b/data/examples/test3.asm @@ -0,0 +1,73 @@ +# All program code is placed after the +# .text assembler directive +.text + +# Declare main as a global function +.globl main + +j main + +# code for main +main: +# Entering a new scope. +# Symbols in symbol table: +# a +# println +# b +# return +# Update the stack pointer. +addi $sp $sp -0 +# println +la $a0 datalabel0 +li $v0 4 +syscall +la $a0 newline +li $v0 4 +syscall +# Get a's offset from $sp from the symbol table and initialize a's address with it. We'll add $sp later. +li $t0 -4 +# Add the stack pointer address to the offset. +add $t0 $t0 $sp +# Compute rhs for assignment = +li $t1 3 +# complete assignment statement with store +sw $t1 0($t0) +# Get b's offset from $sp from the symbol table and initialize b's address with it. We'll add $sp later. +li $t0 -8 +# Add the stack pointer address to the offset. +add $t0 $t0 $sp +# Compute rhs for assignment = +li $t1 4 +# complete assignment statement with store +sw $t1 0($t0) +# println +# Get a's offset from $sp from the symbol table and initialize a's address with it. We'll add $sp later. +li $t1 -4 +# Add the stack pointer address to the offset. +add $t1 $t1 $sp +# Load the value of a. +lw $t0 0($t1) +# Get b's offset from $sp from the symbol table and initialize b's address with it. We'll add $sp later. +li $t2 -8 +# Add the stack pointer address to the offset. +add $t2 $t2 $sp +# Load the value of b. +lw $t1 0($t2) +add $t0 $t0 $t1 +move $a0 $t0 +li $v0 1 +syscall +la $a0 newline +li $v0 4 +syscall +# Exiting scope. +addi $sp $sp 0 +li $v0 10 +syscall + +# All memory structures are placed after the +# .data assembler directive +.data + +newline: .asciiz "\n" +datalabel0: .asciiz "This program prints the number 7" |