Search found 8 matches

by Nephesh
Sat Dec 31, 2022 4:14 pm
Forum: General Off topic
Topic: Questions about the book
Replies: 2
Views: 1507

Re: Questions about the book

No, the book does not cover game logic or platform specifics. The book is basically 3 examples from the simple series (hello world, Bitmap drawing, bitmap movement) on one platform (The simplest for each cpu), an introduction to the processor, and a description of each instruction in the processor,...
by Nephesh
Fri Dec 30, 2022 10:17 pm
Forum: General Off topic
Topic: Questions about the book
Replies: 2
Views: 1507

Questions about the book

Hello, I didn't know where else to post this but I'm curious about the book. I hope I don't come across as stupid or asking weird questions. 1. Does the book touch on game logic at all or is it simply an introduction, a taster for ASM programming? 2. What differences does the book have with the writ...
by Nephesh
Mon Jan 18, 2021 4:12 pm
Forum: General Z80 Programming
Topic: Another rather newbie question
Replies: 4
Views: 3665

Re: Another rather newbie question

If you didn't understand Keith's explanation I will add a little more to it so maybe you can understand it. To convert a hex value to an ASCII letter first notice that in the ASCII table there is a gap, of size 7,between the two groups of characters 0 to 9 and A to F, this obviously suggest to spli...
by Nephesh
Sat Jan 16, 2021 8:09 am
Forum: General Z80 Programming
Topic: Another rather newbie question
Replies: 4
Views: 3665

Another rather newbie question

Hello. So I'm looking at the hex converter you wrote, and I have two questions: So the division works by loading the register b with 16 (because hex is base 16), subtracting the "main" number with it, and then adding a "tally" by increasing the c register until the register B get...
by Nephesh
Fri Jan 15, 2021 10:24 am
Forum: General Z80 Programming
Topic: Looping strings
Replies: 2
Views: 2670

Re: Looping strings

Thank you so much.
by Nephesh
Fri Jan 15, 2021 10:17 am
Forum: Introductions
Topic: introducing myself
Replies: 2
Views: 2962

Re: introducing myself

Hello Martijn! Glad to see a fellow MSX fan onboard. My mom actually owned an MSX1 as a kid herself.

Weirdly, I came here primarily for the MSX.
by Nephesh
Fri Jan 15, 2021 9:59 am
Forum: General Z80 Programming
Topic: Looping strings
Replies: 2
Views: 2670

Looping strings

Hi there, I've wanted to know how to loop strings. I've tried using the register B as what "carries" the loop. I wrote my PrintString correctly, but I have no idea how to make the word "Test" constantly repeating. org &8100 PrintChar equ &BB5A ld hl,Message ld b, 10 call ...
by Nephesh
Sun Jan 03, 2021 4:58 am
Forum: Introductions
Topic: A greeting to you all
Replies: 0
Views: 3304

A greeting to you all

Hello, my name is Nephesh. I'm a teenager, but find a strong interest in old hardware and software. I'm from Dubai, UAE. I wish to learn 6502 and Z80 Assembly, and perhaps other architectures like x86 later on. My primary architectures and fields of interest in terms of ASM (i.e. what I want to lear...

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