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

Comparing Signed Numbers on Z80 (8080) in Assembly

5 votes

Amiga floppy disks and GCR vs MFM

5 votes

Native C compiler for Sinclair ZX Spectrum

5 votes

Which Z80 opcodes can I use without a stack?

5 votes

Why does the Cray 2 use 400 Hz power, and why generate that from motors?

4 votes

Core Memory Stability

4 votes

Sinclair ZX Spectrum with DivMMC load issue

4 votes
Accepted

SPARCstation 1+ cache block size

4 votes

Get exact position of raster beam on C64/C128

4 votes
Accepted

65C816: Inputs TTL-compatible?

4 votes

Did any computer allow overscan on a CRT monitor?

4 votes

Where did the free parameters of IEEE 754 come from?

4 votes

Z80 CPU and nested/reentrant NMI

4 votes

Z80: Interrupt (IM2) daisy chain for "foreign" peripherals

4 votes
Accepted

Z80, do I need a resistor for pins to Vcc?

4 votes

Why didn't early single-chip CPUs support multiplication instructions

4 votes

Any recommendations for a Hitachi HD6303 assembler?

4 votes

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

3 votes
Accepted

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

3 votes
Accepted

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

3 votes

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

3 votes

Write fault error writing device COM1

3 votes
Accepted

Was it possible to win the "Lunar Lander" game with less fuel than the default?

3 votes

Why did later CPUs use microcode instead of PLA's?

3 votes

What are the advantages/disadvantages of using retro hardware vs. FPGA emulation vs. software emulation?

3 votes

In the Amstrad CPC's Mode 0, what was the design rationale for interleaving the pixel bits?

3 votes

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

3 votes
Accepted

SID, sampled sound and bad lines

3 votes

Simplest system to create an emulator for

3 votes

RAM contention and what counts as different banks