Explain what the MOVSPA command in the following segment of code is being used for: BR main ; void AddOne(int &x); x: .EQUATE 2 ; #2h AddOne: LDWA x, sf ADDA 1, i STWA x, sf RET ; int main() num: .EQUATE 0 ; #2d main: SUBSP 2, i ; #num DECI num, s MOVSPA ADDA num, i STWA -2, s SUBSP 2, i ; #x CALL AddOne ADDSP 2, i ; #x DECO num, s STOP .END

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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  • Explain what the MOVSPA command in the following segment of code is being used for:

BR main
; void AddOne(int &x);
x: .EQUATE 2 ; #2h
AddOne: LDWA x, sf
ADDA 1, i
STWA x, sf
RET
; int main()
num: .EQUATE 0 ; #2d
main: SUBSP 2, i ; #num
DECI num, s
MOVSPA
ADDA num, i
STWA -2, s
SUBSP 2, i ; #x
CALL AddOne
ADDSP 2, i ; #x
DECO num, s
STOP
.END

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