Charlie-s-stuff/tempFile at master · collinc777/Charlie-s-stuff · GitHub

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(! sum-code
'(
;data segment
(align 4)
ele1
(dword 7)
(dword ele2)
ele2
(dword 12)
(dword ele3)
ele3
(dword 17)
(dword 0)


;code segment
summer
(pushl %ebp) ;push old base pointer
(rrmovl %esp %ebp) ;set up current frames base pointer
(mrmovl 8(%ebp) %edx) ;have the address of ele1
(mrmovl 0(%edx) %eax) ;get value of the first node
(mrmovl 4(%edx) %edx) ;get the value of the next node
(andl %edx %edx)      ;check to see if address of the next one is null
(je done)	      ;if it is go to done

loop
(mrmovl 0(%edx) %ecx) ;get the value and add to temp
(addl %ecx %eax)      ;add temp to result
(mrmovl 4(%edx) %edx) ;get address of the next node
(andl %edx %edx)
(jne loop)	      ;if address is okay, jump to loop


done
(rrmovl %ebp %esp) ;move the base pointer into the stack pointer
(popl %ebp) ;return the callers frame
(ret)


main
(irmovl stack_top %esp)
(irmovl stack_top %ebp)

(irmovl ele1 %edx) ;get the address for ele1
(pushl %edx) ;edx holds the address to the first node
(call summer)


//code


(ret)
end-of-code

(pos 4096)
stack_top
))