########################################################
# This procedure takes a binary byte and prints a hexadecimal character.
#
# The call to syscall has the following parameters:
#   $a0: thing to be printed
#   $v0: Mode
#       1=integer
#       4=null-terminated string
########################################################
	.data
header: .asciiz  "Print byte: 0x"		
table:  .asciiz  "0123456789ABCDEF"		
char:	.byte	 0,0
number: .byte  	 0x4b				
	.text
	.globl main
main:						
	li 	$v0,4			# printString("Print byte: 0x"
	la	$a0,header
	syscall
#					
	lb	$s2,number		# index = number >> 4 & 0xf			
	srl	$s4,$s2,4	   	
	andi	$s4,$s4,0xf
	la	$t5,table		# entry = table[index]
	add	$t5,$t5,$s4
	lb	$t3,0($t5)
	sb	$t3,char		# char = entry
#						
	li	$v0,4			# printString(char)
	la	$a0,char
	syscall
#						
	andi	$s4,$s2,0xf		# index = number & 0xf
	
	la	$t5,table		# entry = table[index]
	add	$t5,$t5,$s4
	lb	$t3,0($t5)
	sb	$t3,char		# char = entry
#						
	li	$v0,4			# printString(char)
	la	$a0,char
	syscall
#					 
	li	$v0,10			# exit
	syscall