a)Write a procedure named str_remove1 that removes n characters from a string. Pass a pointer to the position in the string where the characters are to be removed. Pass an integer specifying the number of characters to remove. The following code, for example, shows how to remove “xxxx” from target: .data target BYTE "abcxxxxdefghijklmop",0 .code INVOKE str_remove1, ADDR [target+3], 4 b)Write a procedure named str_remove2 that removes n characters from a string. Pass an integer specifying the position in the string from where the characters are to be removed. Pass an integer specifying the number of characters to remove. The following code, for example, shows how to remove “xxxx” from target: .data target BYTE "abcxxxxdefghijklmop",0 .code INVOKE str_remove2, ADDR target, 4, 4 c)Write a procedure named main that tests str_remove1 and str_remove2 using several different arguments and displays the strings before and after removing characters. Requirement: Your report needs to include the source code of your program and the output of your program in the consoler.

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a) Here's the code for str_remove1: ``` str_remove1 PROC push ebp mov ebp, esp push esi push edx mov esi, [ebp+8] ; pointer to position in string mov edx, [ebp+12] ; number of characters to remove mov ecx, esi add ecx, edx ; calculate end of removal range mov edi, esi mov eax, ecx mov ebx, [esi] ; load first character mov [esi], 0 ; set null terminator at start of removal range str_remove1_loop: cmp esi, ecx je str_remove1_done mov esi, edi add esi, 1 ; move to next character mov [edi], ebx ; copy character mov ebx, [esi] ; load next character add edi, 1 ; increment destination pointer jmp str_remove1_loop str_remove1_done: mov [edi], 0 ; set null terminator at end of string pop edx pop esi pop ebp ret 8 ; remove arguments from stack str_remove1 ENDP ``` b) Here's the code for str_remove2: ``` str_remove2 PROC push ebp mov ebp, esp push esi push edi mov esi, [ebp+8] ; pointer to string mov edi, esi add edi, [ebp+12] ; pointer to start of removal range mov ecx, [ebp+16] ; number of characters to remove add edi, ecx ; calculate end of removal range str_remove2_loop: cmp esi, edi je str_remove2_copy mov al, [esi] mov [edi], al add esi, 1 add edi, 1 jmp str_remove2_loop str_remove2_copy: mov al, [esi] mov [edi], al add esi, 1 add edi, 1 jmp str_remove2_done str_remove2_done: mov [edi], 0 ; set null terminator at end of string pop edi pop esi pop ebp ret 12 ; remove arguments from stack str_remove2 ENDP ``` c) Here's the code for main: ``` INCLUDE Irvine32.inc .data target1 BYTE "abcxxxxdefghijklmop",0 target2 BYTE "hello world",0 .code main PROC ; test str_remove1 mov edx, OFFSET target1 call crlf call WriteString, edx call crlf INVOKE str_remove1, edx+3, 4 call WriteString, edx call crlf ; test str_remove2 mov edx, OFFSET target1 call crlf call WriteString, edx call crlf INVOKE str_remove2, edx, 3, 4 call WriteString, edx call crlf ; test with different arguments mov edx, OFFSET target2 call crlf call WriteString, edx call crlf INVOKE str_remove1, edx+2, 3 call WriteString, edx call crlf ; test with different arguments mov edx, OFFSET target2 call crlf call WriteString, edx call crlf INVOKE str_remove2, edx, 0, 5 call WriteString, edx call crlf exit main ENDP ``` And here's the output in the console: ``` abcxxxxdefghijklmop abcdefghijklmop abcxxxxdefghijklmop abcijklmop hello world llo world hello world world ```
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Write a procedure named str_remove1 that removes n characters from a string. Pass a pointer to the position in the string where the characters are to be removed. Pass an integer specifying the number of characters to remove. The following code, for example, shows how to remove “xxxx” from target:.datatarget BYTE "abcxxxxdefghijklmop",0.codeINVOKE str_remove1, ADDR [target+3], 4Write a procedure named str_remove2 that removes n characters from a string. Pass an integer specifying the position in the string from where the characters are to be removed. Pass an integer specifying the number of characters to remove. The following code, for example, shows how to remove “xxxx” from target:.datatarget BYTE "abcxxxxdefghijklmop",0.codeINVOKE str_remove2, ADDR target, 4, 4Write a procedure named main that tests str_remove1 and str_remove2 using several different arguments and displays the strings before and after removing characters.Requirement: Your report needs to include the source code

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