# TITLE Iodemo	(IOdemo.s)
# This program demonstrates some system I/O.

	.data
# variables
FloatPrompt:     .asciiz "Enter a float: "
DblPrompt:       .asciiz "Enter a double: "
IntPrompt:       .asciiz "Enter a integer: "
StrPrompt:       .asciiz "Enter a string: "
OutStr:          .asciiz "\nYour input was "
NewLine:         .asciiz "\n"
FloatIn:         .float  0.0
DoubleIn:        .double 0.0
IntIn:           .word   0
StrIn:           .space  256

	.text
	.globl   main

main:   # start of the main procedure

	# Get and print a string
	la        $a0, StrPrompt           # point to StrPrompt
	li        $v0, 4                   # print_string
	syscall
	la        $a0, StrIn               # point to input buffer
	li        $a1, 255                 # set length of buffer
	li        $v0, 8                   # read_string
	syscall
	la        $a0, OutStr              # point to OutStr
	li        $v0, 4                   # print_string
	syscall
	la        $a0, StrIn               # point to input buffer
	li        $v0, 4                   # print_string
	syscall
	la        $a0, NewLine             # point to NewLine
	li        $v0, 4                   # print_string
	syscall
	
	# Get and print a float
	la        $a0, FloatPrompt         # point to FloatPrompt
	li        $v0, 4                   # print_string
	syscall
	li        $v0, 6                   # read_float
	syscall
	la        $a0, OutStr              # point to OutStr
	li        $v0, 4                   # print_string
	syscall
	mov.s     $f12, $f0                # move float input to output
	li        $v0, 2                   # print_float
	syscall
	la        $a0, NewLine             # point to NewLine
	li        $v0, 4                   # print_string
	syscall

	# Get and print a double
	la        $a0, DblPrompt           # point to DblPrompt
	li        $v0, 4                   # print_string
	syscall
	li        $v0, 7                   # read_double
	syscall
	la        $a0, OutStr              # point to OutStr
	li        $v0, 4                   # print_string
	syscall
	mov.d     $f12, $f0                # move float input to output
	li        $v0, 3                   # print_double
	syscall
	la        $a0, NewLine             # point to NewLine
	li        $v0, 4                   # print_string
	syscall

	# Get and print an integer
	la        $a0, IntPrompt           # point to IntPrompt
	li        $v0, 4                   # print_string
	syscall
	li        $v0, 5                   # read_integer
	syscall
     	move      $t0, $v0                 # move input before it gets changed
	la        $a0, OutStr              # point to OutStr
	li        $v0, 4                   # print_string
	syscall
	move	  $a0, $t0		   # move the integer we saved into $a0
	li        $v0, 1                   # print_integer
	syscall
	la        $a0, NewLine             # point to NewLine
	li        $v0, 4                   # print_string
	syscall

	jr	  $ra