ENTRY :load r6 with 5 (i.e., XX) :load r7 with the contents of location P1²! just a dummy instruction ;angel_SWIreason_ReportException :ADP_Stopped_ApplicationExit :ARM semihosting (formerly SWI) ;equate XX to 5 store hex 32-bit value 1345678 store the byte 25 in memory store byte whose ASCII character is A in memory store the 16-bit value 12342 in memory ensure code is on a 32-bit word boundary MOV r6,#XX LDR r7, P1 ADD r5,r6,r7 ro, #0x18 rl, =0x20026 MOV LDR SvC #0x123456 EQU 5 DCD Ox12345678 DCB 25 DCB 'A' DCW 12342 ALIGN

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
Section: Chapter Questions
Problem 1PE
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explain what each line of code is doing for each line step by step

AREA Directives, CODE, READONLY
ENTRY
;load r6 with 5 (i.e., XX)
;load r7 with the contents of location P1²'
just a dummy instruction
;angel_SWIreason_ReportException
;ADP_Stopped_ApplicationExit
;ARM semihosting (formerly SWI)
;equate XX to 5
;store hex 32-bit value 1345678
store the byte 25 in memory
store byte whose ASCII character is A in memory
store the 16-bit value 12342 in memory
ensure code is on a 32-bit word boundary
MOV
r6, #XX
LDR
r7,P1
ADD
r5,r6,r7
ro, #0x18
rl, =0x20026
svC
MOV
LDR
#0x123456
XX
EQU
5
P1
DCD
0x12345678
P3
DCB
25
YY
DCB
'A'
Тx2
DCW
12342
ALIGN
Strgl =
"Hello"
Strg2
"X2", &0С, &0A
Z3
DCW
ОХАВСD
END
Transcribed Image Text:AREA Directives, CODE, READONLY ENTRY ;load r6 with 5 (i.e., XX) ;load r7 with the contents of location P1²' just a dummy instruction ;angel_SWIreason_ReportException ;ADP_Stopped_ApplicationExit ;ARM semihosting (formerly SWI) ;equate XX to 5 ;store hex 32-bit value 1345678 store the byte 25 in memory store byte whose ASCII character is A in memory store the 16-bit value 12342 in memory ensure code is on a 32-bit word boundary MOV r6, #XX LDR r7,P1 ADD r5,r6,r7 ro, #0x18 rl, =0x20026 svC MOV LDR #0x123456 XX EQU 5 P1 DCD 0x12345678 P3 DCB 25 YY DCB 'A' Тx2 DCW 12342 ALIGN Strgl = "Hello" Strg2 "X2", &0С, &0A Z3 DCW ОХАВСD END
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