$\require{cancel}$

10/4 class

We discussed


        add
       
 addi
       
 sub
       
 beq
       
 bne

We looked at these on

The green card
Figure 2.1, MIPS assembly language revelaed in this chapter
Figure 4.17, The simple datapath with the control uint.

We discussed how to do while loops

From that you should be able to infer how to do if/else statements.

We wrote a loop to print the numbers 0 to 9 countto10.asm

We drew a flowchart (badly)
Then pseudo-c

int i{0};

while (i < 10) {
   cout << i << endl;
   i++;
}
return 0;

.data
LOOP_LIMIT: .word 10
ENDL:   .asciiz "\n"

.text
.globl main

main:
      # use $t0 as lcv
      # use $t1 to hold the loop limit
      # i =0
      li $t0, 0

      lw $t1, LOOP_LIMIT
      # while i < 10
TOP_OF_LOOP:
      beq $t0, $t1, PROGRAM_EXIT

           # cout << i
           li $v0,1
           addi $a0, $t0, 0
           syscall

           # cout << endl
           li $v0, 4
           la $a0, ENDL
           syscall

           # i++
           addi $t0, $t0, 1
           j TOP_OF_LOOP

PROGRAM_EXIT:
      # return 0
      li $v0, 10
      syscall