Qume QVT-102 Installationsanleitung PDF herunterladen (Seite 9)

D - displays memory in hexadecimal and ASCII

L - lists memory using assembler mnemonics

R - reads a program for subsequent testing

S - substitutes memory values

X - examines and optionally alters the CPU state

W - writes changed file back to disk

The DDT86 prompt for you to enter your commands is '-'. In the

following instructions, the commands listed after the DDT86

prompt '-', indicate the commands you should type in. The

characters to be input at the keyboard by you are underlined.

Enter into DDT86 by typing:

OA>DDT86 [RET]

At the '-' prompt, you may begin your entries as follows:

DDT86 1.2

-rXIOS.CON

START

XXXX:0000

-xcs

CS 0000

DS 0000

SS WXYZ

-s0C10

zzzz

END

XXXX:YYYY

(ZZZZ=XXXX + 0008, this value should

placed in the CS and DS registers to

initialize them for the correct segments.)

(Typing "s0C10" starts listing the locations and contents of

values which determine the number of consoles and printers.

It also puts the operator into the substitute mode.

Type a carriage return at a line to leave the contents

there unchanged; type a new value and a carriage return to

replace the value shown. All values are in hex.)

ZZZZ.:0C10 07

ZZZZ:0C11 0E

ZZZZ.:0C12 0E

ZZZZ:0C13 02

ZZZZ:0C14 00

(This is the number of physical consoles;

values from 01 to OE.)

(This is the total number of virtual consoles.

The value equals virtual consoles per individual

physical console multiplied by the number of

physical consoles; values from 01 to 3C.)

(Total console control blocks; same as virtual

consoles.)

(This is the number of list devices; values

from 0 to 5. This value indicates how many

significant entries there are in the list

device table starting at address 0C50.)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 22 23

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