BR main .EQUATE 2 .EQUATE O ;local variable #2d ;local variable #2d а: b: ;******* void swap(int *r, int *s) .EQUATE 6 .EQUATE 4 . EQUATΕ 0 2,i r,sf temp,s s,sf r,sf temp,s s,sf 2,i ¡formal parameter #2h ¡formal parameter #2h ;local variable #2d ¡push #temp ;temp = *r r: s: temp: swap: SUBSP LDWA STWA LDWA ;*r = *s STWA LDWA ;*s temp STWA ADDSP ¡pop #temp RET ;******* void order(int *x, int *y) .EQUATE 4 .EQUATE 2 х, sf y, sf endIf ;formal parameter #2h ;formal parameter #2h ;if (*x > *y) x: y: order: LDWA CPWA BRLE LDWA x,S -2,s ;move x STWA LDWA y,s -4,s 4,i ;move y STWA ;push #r #s ; swap(x, y) ¡pop #s #r SUBSP CALL swap 4,i ADDSP endIf: RET
BR main .EQUATE 2 .EQUATE O ;local variable #2d ;local variable #2d а: b: ;******* void swap(int *r, int *s) .EQUATE 6 .EQUATE 4 . EQUATΕ 0 2,i r,sf temp,s s,sf r,sf temp,s s,sf 2,i ¡formal parameter #2h ¡formal parameter #2h ;local variable #2d ¡push #temp ;temp = *r r: s: temp: swap: SUBSP LDWA STWA LDWA ;*r = *s STWA LDWA ;*s temp STWA ADDSP ¡pop #temp RET ;******* void order(int *x, int *y) .EQUATE 4 .EQUATE 2 х, sf y, sf endIf ;formal parameter #2h ;formal parameter #2h ;if (*x > *y) x: y: order: LDWA CPWA BRLE LDWA x,S -2,s ;move x STWA LDWA y,s -4,s 4,i ;move y STWA ;push #r #s ; swap(x, y) ¡pop #s #r SUBSP CALL swap 4,i ADDSP endIf: RET
C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter12: Adding Functionality To Your Classes
Section: Chapter Questions
Problem 1PP
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Draw the stack frame just before the RET instruction in the swap function is executed in the code shown below:
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