Super Simple/ Stupid question- how does the Put_S command work?

A bit of background, I want to make a basic incrementing loop using asm opcode on-calc assembly. I have done this before, but now there is a problem- I put-


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But when I do that, I get a lowercase e instead of a zero! I assume it's the TI ASCII code, but how do I display numbers instead of symbols?

Thank you in advance,
Blackhawk

You're displaying the string in memory at address 0, not the character with code 0. Most appropriate here would probably be _DispHL:

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The actual implementation of _PutS is basically this:
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According to http://wikiti.brandonw.net/index.php?title=83Plus:BCALLs:450A, it takes as an input a zero terminated string pointed to by HL. The memory location at 0000 contains 0xDB, which in the TI character set is a lowercase e. To do what you are looking to do, you could load HL with a pointer to the character 0x30, which is 0. it would look like:

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If what you want to do is display the calc's ASCII map, you'd rather do that :
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I didn't quite communicate that clearly enough- is there an opcode to display the number in its memory?

Suedo-code;

Load 0 into Hl
Display Hl (0)
Inc. Hl (0-> 1)
Display Hl (1)

I can use the ASCII code, but I would have to store all the codes in ram and that would be a mess

Thanks in advance,
Blackhawk

There's no specific BCALL for that, but if you put the address in HL you can do that :
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I'm still not sure what you're talking about. Tari mentioned the bcall "_DispHL". _DispHL will draw the value of HL to the screen. If you do "ld hl,0000 \ bcall(_DispHL)" it'll output "0". It'll work up to $FFFF (65535).

Another option to display single digits is _PutC. To quickly convert a single digit (0-9) to it's ASCII value, just add $30 to it (that's in hex). I think _PutC displays the character stored in a.

Thaaaaaaaaaaaaank you chickendude! got it to work!


Blackhawk