MIC-1 Help

[jesus123]

Hey guys...I have to write the microcode for floating point add, floating point multiply, and floating point subtraction for the MIC-1...I've been working on this for weeks and I can't figure it out....someone please help

[maki]

Does something like that help you?

 ## count.s
                       
#################################################
#					 	#
#		text segment	  		#
#						#
#################################################

	.text
	.globl __start
__start:

        la $t0,array           ##$t0 will hold the elements
        lw $t1,count           ##$t1  will be the count
        lb $t3,int             ##$t3 will hold the integer we are looking for

loop1:  beqz $t1,End           ##if it’s null,exit loop
        lw $t4,($t0)           ##fetch next int
        add $t0,$t0,4
        bne $t4,$t3,con        ##not null;same as int?
        add $t5,$t5,1          ##yes,increment counter
con:    sub $t1,$t1,1          ##increase index
        j loop1                ##and continue
 

End:    la $a0,ans             ##system call to print
        li $v0,4               ##out a message
        syscall

        move $a0,$t5           ##system call to print 
        li $v0,1               ##out the count worked out
        syscall

        la $a0,end1            ##system call to print
        li $v0,4               ##out a newline
        syscall
                         
        li $v0, 10
        syscall                ##au revoir..

#################################################
#					 	#
#     	 	data segment			#
#						#
#################################################

	.data
array:  .word 1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,0,-1
count:  .word 20
int:    .word 1
end1:	.asciiz "\n"
ans:    .asciiz "The count of the number is "
##
##end of file count.s

[jesus123]

i appreciate the help...but I need to write it in microcode....i need to use registers like MDR, MAR, SP, TOS, H....and so on.......

[Raedwulf]

most us assemblers are x86 - so you are pretty much stuffed.
I'm amazed Maki is using RISC there.....

[maki]

Some years ago i've worked using Risc for academic purposes. I do not know very much. I thought that something like that may be helpful

[Raedwulf]

RISC knowledge is great.....though for personal computers ....working with Macs is a very rare ambition . However,its useful if you're working with mainframes lol
Cheers.