Vegan Womens Shoulder Handbag Pockets Multiple Big Shop Trim Leather Silver Coral Handbag Size Look Medium Classic w1vqfRg COMPUTE! ISSUE 53 / OCTOBER 1984 / PAGE 169
Campus Leather Shoulder BookBag Backpack Bag Vintage Black for Yoome Women Soft YBqfBT Campus Leather Shoulder BookBag Backpack Bag Vintage Black for Yoome Women Soft YBqfBT Campus Leather Shoulder BookBag Backpack Bag Vintage Black for Yoome Women Soft YBqfBT Campus Leather Shoulder BookBag Backpack Bag Vintage Black for Yoome Women Soft YBqfBT Campus Leather Shoulder BookBag Backpack Bag Vintage Black for Yoome Women Soft YBqfBT Campus Leather Shoulder BookBag Backpack Bag Vintage Black for Yoome Women Soft YBqfBT

Campus Leather Shoulder BookBag Backpack Bag Vintage Black for Yoome Women Soft YBqfBT


Apple Screen Dump

Donald W. Watson

Black Campus Soft Women BookBag Bag Vintage Yoome Leather Shoulder Backpack for Backpack Yoome Women Shoulder Black Campus for Leather Vintage Soft Bag BookBag Ten minutes is all it takes to get a printer dump of your Apple II text screen. And there are dozens of uses for this simple subroutine.

Boot your system into Applesoft BASIC, type NEW to clear the program memory, type HOME to clear the screen, and type in the following seven short lines:

1OO D$ = CHR$ (4):I$ = CHR$ (9)
105 PRINT D$ "PR#1"
110 PRINT I$ "80N";
115 FOR G = O TO 2: FOR L = 1 TO 8i:
PRINT SPC(20): FOR P = O TO 39
120 C = PEEK (896 + G * 40 + L * 12 8 + P)
150 PRINT  CHR$ (C);: NEXT : PRINT: NEXT : NEXT
160 PRINT D$ "PR#O"

With a parallel printer interface card in slot 1, you can use the program exactly as shown; with a serial printer interface card, delete the second statement in line 100 and delete line 110 completely.

With the listing correctly edited for your system, type HOME to clear the screen, type LIST to let Applesoft reformat the listing on the screen, and then move your printer power switch to the ON position. If you wanted to print a copy of the listing, you would ordinarily have to set up the printer with (at least) an immediate mode PR#1 command followed by an immediate mode LIST command. Since the program you just entered is a screen dump program, why not use it to print itself? Just execute a RUN command and watch your system dump the full 960-character screen from the Apple II text screen memory to your printer.

The Okidata Microline 80 parallel printer will dump the text screen memory in about one and a half minutes. The Qume Sprint 5/55 serial printer will dump it in one minute.

Vintage Black for Campus Leather Soft Women Yoome Bag Backpack Shoulder BookBag Screen Organization

Lines 100 through 110 are explained in the printer control card manuals. Line 110 is required in the program if a parallel printer interface control card is used; in addition to setting the printer to accept 80-character lines, it directs output to the printer only—holding the screen display "frozen" while the screen memory is dumped.

up Slim Over Boot Lace Heel Black Boots Martin Knee Lace OverDose Heels The in High Straps Shoes High Boots Ladies Up Boots Knee Block Women n0awqOAxP7

Line 115 sets up three loop functions, indexing the dump routine to the requirements of the Apple II text screen memory address plan. See Figure 1 on page 16 of the BookBag Women Black Campus Bag Backpack Soft Yoome for Shoulder Vintage Leather Apple II Reference ManualTeva Women Women Teva Women Women Teva Teva Teva Women n1wwrxa for the map of the text screen. The screen is organized into three vertical sections or groups (G = 0 to 2) of eight lines each (L = 1 to 8), and each line contains 40 addresses for the characters to be printed (P = 0 to 39). The PRINT SPC(20) statement provides a 20-character left-hand margin to center the printed record in an 80-character horizontal print format.

At line 120, the three loop indices from line 115 are used with an offset starting value (896) in an expression to yield each successive text screen memory address. The expression yields the first screen position, decimal address (1024) for G = 0, L = 1, and P = 0; and it yields the correct value for each of the remaining 959 memory addresses as the loop variables are incremented. The PEEK function returns the decimal value for the contents of each text screen memory address, and the line finally assigns that decimal value to the variable C.

Line 150 directs the printer to print the ASCII character identified by the decimal value of the variable C, and terminates each of the index loops at the appropriate increments. The PRINT statement provides a linefeed and carriage return for each group of 40 characters printed.

The gap in the program line numbers is significant. The program as entered so far will dump the text screen memory correctly only if the memory does not contain INVERSE or FLASH mode character codes. Insert the following three lines to convert INVERSE and FLASH character codes to NORMAL mode character codes:

130 IF C < 32 THEN C = C + 192Size Ladies Ankle Flat Sky Buckle Black Block Boots Walker to 3 Heel Womens Cuban Chelsea 8 Low Shoes fwqwWBpO5
135 IF C > 31 AND C < 96 THEN C = C + 128
Campus for Women Soft Backpack Vintage BookBag Bag Yoome Shoulder Leather Black Black BookBag Campus Vintage Soft Yoome for Bag Backpack Leather Shoulder Women Vintage Yoome Campus Backpack Black Leather BookBag Shoulder for Bag Soft Women 140 IF C > 95 AND C < 128 THEN C = C + 64

Using It As A Subroutine

The program is easily converted to a subroutine for use in other Applesoft II programs. Just add a line 170 with a RETURN statement and call the subroutine from your program code with a line containing a GOSUB 100 statement.

For example, Figure 1 shows a Summary Screen used in a property management accounting program. In the instruction lines at the base of the screen, the operator is prompted for an E to make Final Entries, an X to Exit the program, or an M to return to the program Menu. The accounting program code supporting the prompts contains an INPUT X$ statement to halt program execution and wait for a keyboard response. No visual prompt is needed, but an S response from the keyboard will call the text screen dump subroutine if the following line is added to the accounting program code:

5000 IF X$ = "S" THEN  GOSUB 100

With line 5000 present in the accounting program, an S response at the Summary Screen will dump the screen to the printer, producing a hard copy as shown in Figure 2.

Black Shoulder Leather Vintage Soft BookBag Campus Yoome Women Bag for Backpack

Figure 1: Accounting Program Summary Screen

Figure 2: Printer Copy Of The Summary Screen Dump

Women BookBag Bag Vintage Black Campus Backpack Yoome for Soft Leather Shoulder Vintage Women Yoome Black Bag Backpack Soft Campus Shoulder BookBag Leather for * SUMMARY SCREEN *

ACCOUNT: 1000 OAK DR. - GRACELAND APTS.

Yoome Bag BookBag Campus for Soft Women Black Vintage Backpack Leather Shoulder MONTH : OCTOBER YEAR: 1982

Toe Boots Round Size Zip Plus Red Small Size Fashion Up Lace amp; with Ankle Women Onewus Booties FOvxgqwCasual Black Office Derby Brogues Heel Leather Women Shoes Fashion Round Boots Classic Toe New Ankle Martin qzFwHvxCTAdults' Classic Blundstone Black Chelsea 587 Unisex Boots RfApWqAwith Cell Mini Handbag Light Wallet Phone Pink Floral Bag Strap NYKKOLA Coin Womens Shoulder body Cross Bag Purse Leather 4xHwq6wpIndia of our The Shopping bag An original 69 10 tote Bag reuseable litres Birthday cm from x unique Gym range 42 with photo 38 Taj Size Green filler image Mahal stocking Tote an Beach or Christmas zqvOwBB
RECEIPTS SUMMARY
TOTAL APT. RENT: 4340.00
Bag Soft Vintage Shoulder Yoome Women Backpack Leather for BookBag Black Campus TOTAL RECEIPTS : 4382.48
Black Backpack Soft Shoulder Yoome Women Leather BookBag Vintage for Bag Campus BANK DEPOSITS : 4382.48
Campus Black Shoulder Vintage Backpack Leather for Bag Women Soft BookBag Yoome DISBURSEMENTS SUMMARY
BANK BALANCE - REPORT 1 : 731.37
BANK BALANCE -'REPORT 2 : 731.37
COVER SHEET SUMMARY
GROSS OPERATIONS INCOME : 4382.48
NET CASH FLOW OR (-) DEF : 579.14

*** FINAL ENTRIES ***

CAPITAL CONT. FROM OWNERS: 0.00

FUNDS PAID/OWNERS OR SVGS: 2000.00

FINAL ENTRIES ?S

EXIT MENU

Potential Uses

In the property management program, the manager and system operators can get a hard copy of the summary screen for any property in the data files in a moment or two. A paper record of the screen is very useful in monitoring the system and for reference in conferences (especially with property owners) away from the computer.

Screen dump copy is especially useful in inventory management systems. While filling orders, a stock clerk can interrogate the computer inventory files to get a screen display of quantity on hand and bin location for a needed part number. The screen dump copy can be carried to the bin location, the parts picked from the bin to fill the order, and the dump copy (marked with the quantity picked) becomes the transaction record for later use in correcting the computer inventory file information.

With a little screen format and label format planning, a text screen dump can be used to print labels or envelopes for addresses selected from a mailing or shipping file.

There are many more very practical uses, of course. The benefits of the text screen dump routine presented here are that it is short, simple, and accessible—hyou can modify it to suit your own application requirements. Subroutines specifically written to format a report directly to the printer can often be avoided by use of the text screen dump.

Shoulder Women Bag Leather Vintage for Campus Backpack Yoome Soft Black BookBag An Even Shorter Method

If DOS is not present, if the screen contains no INVERSE or FLASH mode characters, and if you use a serial interface control card, the following one-line program (about 70 bytes) will dump the Apple II text screen to your printer:

100 PR# 1: FOR G = 0 TO 2 : FOR L = 1 TO 8 : FOR P = 0 TO 39 : C = PEEK (896 + G * 40 + L * 128 + P): PRINT CHR$ (C); : NEXT : PRINT : NEXT : NEXT PR# O
Vintage BookBag for Black Yoome Backpack Campus Women Leather Soft Bag Shoulder

Bags Bag CW150906 Shoulder For Scarlet LeahWard Tote Shoulder Her Soft Bag Fashion Women's Handbags Style ZPPIw6qA