/*  Original C source "factorial.c":
	
#include<stdio.h>
 
void main()
{ int n, accumulator;
  
  printf("Input number: ");
  scanf("%4d",&n);
  
  accumulator = 1;
  while (n > 1)   
    { accumulator = accumulator * n;
      n = n - 1;
    }

  printf("\nThe factorial value is %d\n",accumulator);

}
*/	

/* This file was created with the command "gcc -S factorial.c".  It can
   be assembled into an executable with "gcc myfact.s -o myfact".  "myfact"
   will be the name of the executable. */
	
			
	.file	"factorial.c"
gcc2_compiled.:
.section	".rodata"
	.align 4			! changed from 8
.LLC0:
	.asciz	"Input number: "
	.align 4
.LLC1:
	.asciz	"%4d"
	.global .umul
	.align 4
.LLC2:
	.asciz	"\nThe factorial value is %d\n"

.section	".text"			! start of source code
	.align 4			! all instructions are 4 bytes long
	.global main
	.type	 main,#function
	.proc	020
main:

	save %sp,-120,%sp		! create stack frame 

	sethi %hi(.LLC0),%o1		! load high 22 bits into o1
	or %o1,%lo(.LLC0),%o0		! effect: load low 10 bits into o0
	call printf,0			! call printf library routine
	nop				! pipeline delay slot
	add %fp,-20,%o1			! fp-20 = address of "int n"
	sethi %hi(.LLC1),%o2
	or %o2,%lo(.LLC1),%o0
	call scanf,0			! call scanf with args in o0,o1
	nop
	mov 1,%o0			! prepare 1 for storage
	st %o0,[%fp-24]			! fp-24 = "int accumulator"

.LL2:					! while loop test (n > 1)
	ld [%fp-20],%o0			! / compare n with 1
	cmp %o0,1			! \
	bg .LL4				! branch if > to .LL4
	nop				! pipeline delay slot
	b .LL3				! branch if not > to .LL3
	nop
.LL4:					! body of while loop
	ld [%fp-24],%o0			! / n*accumulator
	ld [%fp-20],%o1	
	call .umul,0			
	nop				
	st %o0,[%fp-24]			! \ result of * in o0 	
	ld [%fp-20],%o0			! / n = n -1
	add %o0,-1,%o1			
	st %o1,[%fp-20]			! \ 
	b .LL2				! jump back to while loop test
	nop
.LL3:					! end of while loop
	sethi %hi(.LLC2),%o1		! / prints accumulator
	or %o1,%lo(.LLC2),%o0
	ld [%fp-24],%o1			
	call printf,0			! \
	nop
.LL1:
	ret				! end of function code (return)
	restore
.LLfe1:
	.size	 main,.LLfe1-main
	.ident	"GCC: (GNU) 2.8.0"