From 143f34d941f32e0808fc9344d4c4126ff530d64a Mon Sep 17 00:00:00 2001
From: Andrew <saintruler@gmail.com>
Date: Thu, 22 Oct 2020 21:03:24 +0400
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---
 sem2/lab5/test.asm | 105 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 sem2/lab5/test.asm

(limited to 'sem2/lab5/test.asm')

diff --git a/sem2/lab5/test.asm b/sem2/lab5/test.asm
new file mode 100644
index 0000000..4006e27
--- /dev/null
+++ b/sem2/lab5/test.asm
@@ -0,0 +1,105 @@
+.model small
+.data
+int09h dw 2 dup (0)
+msg db "To exit press ESC! $"
+tsr_end equ $
+; B_UP equ 1Ch  ; вверх
+
+.stack 100h
+.486
+.code
+
+; pNewInterrupt PROC far
+;     PUSHF
+
+;     PUSH ax
+
+;     in al, 60h ; Читаем сканкод
+;     cmp al, B_UP
+;     JE hotkey
+
+;     ; ; Наш код
+;     ; mov dx, offset mesg
+;     ; MOV ah,09h
+;     ; INT 21h
+
+;     POP ax
+;     POPF
+;     PUSHF
+
+;     CALL cs:[int09h]
+;     jmp exit
+
+; hotkey:
+;     ; Обработка аппаратного прерывания
+;     in         al,61h
+;     mov        ah,al
+;     or         al,80h
+;     out        61h,al
+;     xchg       ah,al
+;     out        61h,al
+;     mov        al,20h
+;     out        20h,al
+
+;     ; Наш код
+;     mov dx, offset mesg
+;     MOV ah,09h
+;     INT 21h
+
+; exit:
+;     POPF
+;     IRET
+
+; pNewInterrupt ENDP
+
+
+start:
+    JMP program
+
+pNewInterrupt PROC far
+    PUSHF
+    CALL dword ptr cs:int09h
+    IRET
+pNewInterrupt ENDP
+
+program:
+
+    MOV ax, @DATA
+    MOV ds, ax
+
+    ; MOV ax,3509h                ;Hook interrupt 09H
+    ; INT 21h
+    ; MOV word ptr int09h,bx
+    ; MOV word ptr int09h[2],es
+
+    ; ; MOV ax, 2509h
+    ; ; MOV dx, offset pNewInterrupt
+    ; ; INT 21h
+
+    ; ; Восстанавливаем прерывание
+    ; MOV ax, 2509h
+    ; MOV ds, word ptr int09h[2]
+    ; MOV dx, offset int09h
+    ; INT 21h
+    ; INT 09h
+
+    MOV ax, 3509h
+    INT 21h
+    MOV word ptr int09h, bx
+    MOV word ptr int09h[2], es
+
+    MOV ax, 2509h
+    MOV dx, offset pNewInterrupt
+    INT 21h
+
+    MOV ah,09h
+    MOV dx, offset msg
+    INT 21h
+
+    MOV dx, offset tsr_end
+    INT 27h
+
+    ; ; Выходим из программы
+    ; MOV ax, 4c00h
+    ; INT 21h
+END start
\ No newline at end of file
-- 
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