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Share Your Experience: Take the 2024 Developer Survey
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lvd's user avatar
lvd's user avatar
lvd
  • Member for 7 years, 2 months
  • Last seen this week
12 votes

Developing an application in the era of cassette tapes (audio-tapes)

19 votes

Was there any computer since about 1960 without interrupt support?

12 votes

Was there any computer since about 1960 without interrupt support?

2 votes

Do Z80 datalines need termination

1 vote

How to get games working on MAME?

2 votes

What is the most accurate way to map 6-bit VGA palette to 8-bit?

3 votes
Accepted

ZX Spectrum - guidelines for porting to PC and more are appreciated

0 votes

Examples of floating-point numbers that don’t round-trip losslessly through text conversion in Microsoft BASIC

0 votes

"Mainframe" with Z80

4 votes

Why did the 8080's PUSH PSW write one reserved bit as 1 and the other two as 0?

3 votes

Write fault error writing device COM1

1 vote

Z80: asymmetric use of B in DJNZ (B is a low byte) vs. BC in LDIR (where B is a high byte)

8 votes

Z80: can you transfer the program counter (PC) to a general register (e.g., HL)?

17 votes

What are tacts in the context of ZX Spectrum systems?

12 votes

Why didn’t the 1980s micros use MC68010?

3 votes

What are examples of providing non-RST instructions for 8080 interrupts?

6 votes
Accepted

How exactly does Leningrad contend the memory?

3 votes
Accepted

PDP 11/70: byte addressing of I/O space

2 votes

Why does this ZX Spectrum clone have an extra 2K PROM on the Farbplatine?

4 votes

Any recommendations for a Hitachi HD6303 assembler?

1 vote

How did the Spectrum clones with TR-DOS and paged memory load and run code files from disk?

4 votes

Z80 CPU and nested/reentrant NMI

10 votes
Accepted

How did the 6502 designers intend for the indirect addressing modes to be used?

20 votes

Can the 6502 clock be changed on the fly?

5 votes

Could the Z80 do interference-free video as the 6502 could?

5 votes

Will disassembling an 8080 program as Z80 code work?

7 votes

Did vacuum-tube computers ever reach a physical limit to their speed?

10 votes

Were there any NMOS (or PMOS) processors that could tolerate a stopped clock?

17 votes

Were the classic game consoles *technically* able to play both NTSC and PAL games, if ignoring artificial region lock-in?

3 votes

Did any ZX Spectrum clones use the Z80's interrupt mode zero?

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