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1.4. Debug




Debug .

1. . E . , .

- 100

3756:0100 4.01 85.D8

01h D8h 3756:0100 3756:0101. , , , . , Debug ( E4 85) 100h 101h .

2. . D . , , .

-D 100

3. . :

- A

, , (, 100h). Enter. Enter. .

. 100h ADD AX,BX.

4. . R:

- R

AX=0000 BX=0000 CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000

DS=3756 CS=3756 ES=3756 SS=3756 IP=0100 NV UP DI PL NZ NA PO NC

3756:0100 01D8 ADD AX,BX

. , .

(AX, BX, CX, DX), (SP, BP) (SI, DI).

. , , . Debug , h.

(DS, CS, ES, SS). , , . IP. 100 h, .

. , IP. : (, CS), , (, IP). ( ) , IP, 01D8 ADD AX,BX ( AX BX, AX), .

, R .

5. T. , IP.

6. .

, . BIOS 0040:0013,

-d 0040:0013.

7. .

: NumLock, ScrollLock, CapsLock, Ins BIOS 0000h:0417h 0000h:0418h.

0000h:0417h:

  Shift.
  Shift.
  Ctrl-Shift .
  Alt-Shift .
  ScrollLock.
  NumLock.
  CapsLock.
  Insert.




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