Write-A.P.P.L.E.

Aug 1 1978

Write-A.P.P.L.E.


Dear Call-A.P.P.L.E.

I am writing to say I am very impressed with the Call-A.P.P.L.E. newsletter.  It is not only informative, it is also very useful, particularly the section dealing with the System Monitor and Mini-Assembler, since I am especially Interested in Assembly Language.  How about making an Assembly Language Tutorial tape.  Also, how would I go about getting a copy of the listing for Integer BASIC?

Linda Egan

6471 E. Nixon Street

Lakewood, CA 90713

 

 

Dear Linda,

if you had made a killing in the stock market, me might be able to get that listing for you.  Seriously, that is one very closely guarded secret.  And we are looking into the possibility of an Assembly Language Tutorial.

–Editor

By billm • Apple ][, Assembly Language, Columns, Integer Basic, Write-A.P.P.L.E. • 0 • Tags: , , ,

Aug 1 1978

Write-A.P.P.L.E.

Dear Mr. Golding

I recieved my July issue of Call-A.P.P.L.E. after joining the group.  I think you are doing a great job on Call-A.P.P.L.E.!  In Stopwatch (Library Pak 1A), the display flickers, this can be fixed by changing line 190:

Change POKE 34,22 to POKE 34,24.

I also have a question that others might be interested in too:

How do you use HI-RES with Integer Basic >LOAD without asking the operator to manually enter >HIMEM: 8192?  By listing your program, I see a BASIC line “5 HIMEM:16384″;  What does this do?

 

S.H. LAM

256 Hartley Avenue

Princeton, NJ 08540

 

 

Mr. Lam,

Thanks for your kind comments.  This is not easy to answer in a short space.  In fact, if space permits, we will reprint, elsewhere in this issue, an article from Apple’s newsletter CONTACT, issue 1, which explains in detail, just how to manipulate the program pointers to load a HI-RES program in BASIC, which is just about what we did in our HI-RES demo.  What you did not notice was line 0, which disappears, once the program has been run.  Line 0 reads:  HIMEM:8192, and if you try to enter it normally, you will get a ***SYNTAX ERR.  It was accomplished by first entering the line as “0 PRINT 8192″ and then locating the line in memory and changing the print byte ($63) to HIMEM: ($10).  Our Programmer’s Workshop II is helpful for this, in that is has a routine to locate and display a BASIC line as viewed by memory.  The HIMEM: 16384 you referred to would have been in the Softcore Software program, which in truth is not a program but merely a screen display that has been saved on tape.

To be continued!

–Editor

By billm • Apple ][, Columns, Integer Basic, Write-A.P.P.L.E. • 0 • Tags: , , , ,

Aug 1 1978

Write-A.P.P.L.E.

To: Call-A.P.P.L.E.

I purchased a set of 16K dynamic RAM from “Advanced Computer Products.”  They passed the memory test in a previous issue of this newsletter.  The price was eight chips for $200, with a six week delay waiting for their “same day shipment.”  Remember to have a set of three 14 pin sockets on hand for your memory select jumpers.  Thanks for telling how the HI-RES system handles the colors.  I wondered why my blue and green spaceships were disappearing at certain points on the screen.

Mark Cross

1906 Goodwin Road

 

Ruston, LA 71720

By billm • Apple ][, Columns, Hardware, Memory, Write-A.P.P.L.E. • 0 • Tags: , , ,

Aug 1 1978

Integral Data To The Rescue!

Much of this issue of Call-A.P.P.L.E. was done 0n our own Apple II Computer, nobly assisted by an Integral Data IP-225 printer, along with our own modification of Phil Roybal’s Lower Case Character Generating Program (See Contact, May, 1978)

The IP-225 has performed beautifully,  and because you can software-select eight different type fonts, It is ideal for this task.  We believe the smallest available type face, which we are using here, is easily readable, and it contributes further by making it possible to include more educational matter in a  given space.  Reader input on this subject would be welcomed.

Write-A.P.P.L.E.!

By billm • Call-A.P.P.L.E. Production, Hardware, Printers, Printing, Write-A.P.P.L.E. • 0 • Tags: , , , ,