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23 votes
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How did the Apple IIe convert to upper case?

This is actually done as part of the Applesoft tokenizer. Basically when you type a line of code into the Applesoft interpreter, the very first thing that happens is that the line is tokenized -- it ...
Chris Dodd's user avatar
16 votes
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Looking for an accurate Apple II(e) character set - in particular, what is CHR$(133)?

The game was originally written for the TRS-80 and ported to the Apple II. In an online TRS-80 emulator PRINT CHR$(133) is a partial vertical line. The TRS-80 character set has other options for &...
Nick Westgate's user avatar
13 votes
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Help understanding TAIPAN source code for the Apple II

You don't need to follow the listing far to see the problem. Line 10 ends with GOTO 10000, and 10000 starts with CALL 6147, which is $1803, smack in the middle of the Applesoft source code, which ...
Nick Westgate's user avatar
11 votes

How did the Apple IIe convert to upper case?

This post has a brief history of Applesoft. You'll note it was modified in 1984 to allow entry of lower-case keywords. If you look at the PARSE routine (at $d56c) in the ][+ version of Applesoft in ...
fadden's user avatar
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9 votes

How did the Apple IIe convert to upper case?

[Oioioi, this is one of the darkest corner of the II line :))] How did the Apple IIe convert to upper case? The Apple IIe did not convert at all. That's why the IIe Programmers Reference mentions: .....
Raffzahn's user avatar
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7 votes

Looking for an accurate Apple II(e) character set - in particular, what is CHR$(133)?

Update: this isn't the answer to the question. The hi-res version and the text version share a common heritage but have no overlap in how they handle the display; CHR$(133) does not appear in the ...
fadden's user avatar
  • 9,060
7 votes

Help understanding TAIPAN source code for the Apple II

You might have more luck with the BASIC program from this disk: Taipan Hayden Book Version, which was apparently keyed from the Taipan: A Historical Adventure For The Apple Computer book. It at least ...
scruss's user avatar
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7 votes

Looking for an accurate Apple II(e) character set - in particular, what is CHR$(133)?

A quirk of the Apple II Monitor ROM, which I'd guess derives from the Apple I ROM (though I've not looked at that) is that the routines that input characters always set bit 7, thus yielding values 128-...
supercat's user avatar
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5 votes

Extensions to Apple BASIC with ampersands

A little late to the party but I remember doing this back in the early 80's, it was definitely the & "extension" used in Applesoft. Like Patrick mentioned I also remember combining ...
JohnL's user avatar
  • 51
2 votes

Looking for an accurate Apple II(e) character set - in particular, what is CHR$(133)?

Could it be that this is related to the second character set (Mousetext) available starting with the IIc and the enhanced IIe? The examples seem to be all taken in 40 character mode which does ...
Raffzahn's user avatar
  • 226k

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