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authorLizzy Hunt <elizabeth.hunt@simponic.xyz>2023-04-10 09:17:11 -0600
committerLizzy Hunt <elizabeth.hunt@simponic.xyz>2023-04-10 09:17:11 -0600
commit5f28f80c4e25a56cd444914c2f0b3da5e7fdb088 (patch)
tree600ad8b1ec5aad5155baf8c0352281054a8e6366 /data/examples/test8.asm
downloadcminus-5f28f80c4e25a56cd444914c2f0b3da5e7fdb088.tar.gz
cminus-5f28f80c4e25a56cd444914c2f0b3da5e7fdb088.zip
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+# All program code is placed after the
+# .text assembler directive
+.text
+
+# Declare main as a global function
+.globl main
+
+j main
+
+# code for add
+add:
+# Entering a new scope.
+# Symbols in symbol table:
+# println
+# x
+# y
+# return
+# Update the stack pointer.
+addi $sp $sp -0
+# Get x's offset from $sp from the symbol table and initialize x'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 x.
+lw $t0 0($t1)
+# Get y's offset from $sp from the symbol table and initialize y'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 y.
+lw $t1 0($t2)
+add $t0 $t0 $t1
+sw $t0 -12($sp)
+jr $ra
+# Exiting scope.
+addi $sp $sp 0
+jr $ra
+
+# code for add2
+add2:
+# Entering a new scope.
+# Symbols in symbol table:
+# println
+# x
+# y
+# return
+# Update the stack pointer.
+addi $sp $sp -0
+# Calling function add
+# Save $ra to a register
+move $t0 $ra
+# Save $t0-9 registers
+sw $t0 -16($sp)
+# Evaluate parameters and save to stack
+# Calling function add
+# Save $ra to a register
+move $t1 $ra
+# Save $t0-9 registers
+sw $t0 -16($sp)
+sw $t1 -20($sp)
+# Evaluate parameters and save to stack
+# Get x's offset from $sp from the symbol table and initialize x's address with it. We'll add $sp later.
+li $t3 -4
+# Add the stack pointer address to the offset.
+add $t3 $t3 $sp
+# Load the value of x.
+lw $t2 0($t3)
+sw $t2 -24($sp)
+# Get y's offset from $sp from the symbol table and initialize y's address with it. We'll add $sp later.
+li $t3 -8
+# Add the stack pointer address to the offset.
+add $t3 $t3 $sp
+# Load the value of y.
+lw $t2 0($t3)
+sw $t2 -28($sp)
+# Update the stack pointer
+add $sp $sp -20
+# Call the function
+jal add
+# Restore the stack pointer
+add $sp $sp 20
+# Restore $t0-9 registers
+lw $t0 -16($sp)
+lw $t1 -20($sp)
+# Restore $ra
+move $ra $t1
+# Get return value off stack
+lw $t1 -32($sp)
+sw $t1 -20($sp)
+li $t1 1
+sw $t1 -24($sp)
+# Update the stack pointer
+add $sp $sp -16
+# Call the function
+jal add
+# Restore the stack pointer
+add $sp $sp 16
+# Restore $t0-9 registers
+lw $t0 -16($sp)
+# Restore $ra
+move $ra $t0
+# Get return value off stack
+lw $t0 -28($sp)
+sw $t0 -12($sp)
+jr $ra
+# Exiting scope.
+addi $sp $sp 0
+jr $ra
+
+# code for main
+main:
+# Entering a new scope.
+# Symbols in symbol table:
+# println
+# return
+# Update the stack pointer.
+addi $sp $sp -0
+# println
+la $a0 datalabel0
+li $v0 4
+syscall
+la $a0 newline
+li $v0 4
+syscall
+# println
+# Calling function add2
+# Save $ra to a register
+move $t0 $ra
+# Save $t0-9 registers
+sw $t0 -4($sp)
+# Evaluate parameters and save to stack
+li $t1 2
+sw $t1 -8($sp)
+li $t1 4
+sw $t1 -12($sp)
+# Update the stack pointer
+add $sp $sp -4
+# Call the function
+jal add2
+# Restore the stack pointer
+add $sp $sp 4
+# Restore $t0-9 registers
+lw $t0 -4($sp)
+# Restore $ra
+move $ra $t0
+# Get return value off stack
+lw $t0 -16($sp)
+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 7"