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2. Нортон П."Язык Ассемблера для IBM PC".

3. Юров, Хорошенко "Assembler: учебный курс".

Додаток

.486

.model flat, stdcall

option casemap :none

include \masm32\include\windows.inc

include \masm32\macros\macros.asm

include \masm32\include\masm32.inc

include \masm32\include\gdi32.inc

include \masm32\include\user32.inc

include \masm32\include\kernel32.inc

include \masm32\include\fpu.inc

includelib \masm32\lib\masm32.lib

includelib \masm32\lib\gdi32.lib

includelib \masm32\lib\user32.lib

includelib \masm32\lib\kernel32.lib

includelib \masm32\lib\fpu.lib

strCat PROTO lpszSource:DWORD, lpszAdd:DWORD

.data

strNum1 db "Type the the first number: ", 0

strNum2 db "Type the second number: ", 0

strArithm db "The result of fucntion: ", 0

strType1 db "Type the first string: ", 0

strType2 db "Type the second string: ", 0

strResult db "The result of concationation: ", 0

strZeroDiv db "Zero divide is forbidden. Function is undefined ", 13, 10

cons dq -2.0

one dq 1.0

y dq 0

.data?

buff db 128 dup(?)

str1 db 64 dup(?)

str2 db 64 dup(?)

a dq ?

b dq ?

.code

start:

call arithm

print chr$(13,10)

call string

invoke Sleep, 2000d

exit

arithm proc

LOCAL hInput :DWORD

LOCAL hOutPut :DWORD

LOCAL nRead1 :DWORD

LOCAL nRead2 :DWORD

LOCAL str3[15] :BYTE

invoke GetStdHandle, STD_OUTPUT_HANDLE

mov hOutPut, eax

invoke GetStdHandle, STD_INPUT_HANDLE

mov hInput , eax

invoke szLen, offset strNum1

invoke WriteConsole, hOutPut, offset strNum1, eax, NULL, NULL

invoke ReadConsole, hInput , ADDR str1, 10d, ADDR nRead1, NULL

xor eax, eax

invoke szLen, offset strNum2

invoke WriteConsole, hOutPut, offset strNum2, eax, NULL, NULL

invoke ReadConsole, hInput, ADDR str2, 10d, ADDR nRead2, NULL

xor eax, eax

invoke StrToFloat, ADDR str1, offset a

invoke StrToFloat, ADDR str2, offset b

fld b

fld a

fcom y

fstsw ax

sahf

jz Divide

fxch

fcom y

fstsw ax

sahf

jz Divide

ffree st(1)

ffree st(0)

fstsw ax

sahf

fld b

fld a

fcom

fstsw ax

sahf

je equal

ja greater

jb lower

jmp theend

equal:

fld cons

fstp y

jmp theend

greater:

print chr$("A IS GREATER", 13, 10)

fxch

fdiv

fld one

fadd

fstp y

jmp theend

lower:

print chr$("A IS LOWER", 13, 10)

fsub st(0), st(1)

fld a

fxch

fdiv st(0), st(1)

fstp y

jmp theend

theend:

invoke FloatToStr, y, ADDR str3

xor eax, eax

invoke szLen, offset strArithm

invoke WriteConsole, hOutPut, offset strArithm, eax, NULL, NULL

xor eax, eax

invoke szLen, ADDR str3

mov nRead1, eax

invoke WriteConsole, hOutPut, ADDR str3, nRead1, NULL, NULL

ret

Divide:

invoke szLen, offset strZeroDiv

invoke WriteConsole, hOutPut,offset strZeroDiv, eax, NULL, NULL

arithm endp

string proc

LOCAL hInput :DWORD ;handle of console input

LOCAL hOutPut :DWORD ;handle of output

LOCAL nRead1 :DWORD ;number of bytes read

LOCAL nRead2 :DWORD ;the same

invoke GetStdHandle, STD_OUTPUT_HANDLE

mov hOutPut, eax

invoke WriteConsole, hOutPut, offset strType1, 24d, NULL, NULL

invoke GetStdHandle, STD_INPUT_HANDLE

mov hInput, eax

invoke ReadConsole, hInput, ADDR str1, 64d, ADDR nRead1, NULL

invoke WriteConsole, hOutPut, offset strType2, 25d, NULL, NULL

invoke ReadConsole, hInput, ADDR str2, 64d, ADDR nRead2, NULL

invoke strCat, offset buff, offset str1

invoke strCat, offset buff, offset str2

xor eax, eax

invoke szLen, offset buff

mov nRead2, eax

invoke WriteConsole, hOutPut, offset strResult, 31d, NULL, NULL

invoke WriteConsole, hOutPut, offset buff, nRead2, NULL, NULL

ret

string endp

strCat proc lpszSource:DWORD, lpszAdd:DWORD

push edi

invoke szLen, lpszSource

mov edi, lpszSource

mov ecx, lpszAdd

add edi, eax ; set write starting position

xor edx, edx ; zero index

xor eax, eax ; avoid stall with following AL reads and writes

mov [edi-2], byte ptr 20h

mov [edi-1], byte ptr 20h

@@:

mov al, [ecx+edx] ; write append string to end of source

mov [edi+edx], al

add edx, 1

test al, al ; exit when terminator is written

jne @B

pop edi

mov eax, lpszSource

ret

strCat endp

end start

Характеристики

Список файлов курсовой работы