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George Phillips
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37 Answers

Votes Activity Newest
97
Fixing obscure 8080 emulator bug?
Jun 4 '19 at 8:37
88
Where did the popularity of the `i` variable come from?
Dec 1 '16 at 0:48
58
What is the origin of this bizarre advert of people wearing swimsuits in a room with computer hardware?
Jun 23 '20 at 9:53
52
How did the Z80 instruction set differ from the 8080?
Oct 25 '16 at 20:43
38
How did Woz write the Apple 1 BASIC before building the computer?
Feb 12 at 8:01
30
What is the relationship between solid-state ROM and inaccessible content in arcade games?
May 20 '16 at 9:36
29
What exactly is a cycle-accurate emulator?
Jul 26 '16 at 23:48
25
Strange math syntax in old basic listing
May 28 '19 at 18:55
20
Variances in Basic highest line numbers
Jan 14 '20 at 18:49
19
Ratio of code density between 8080 and Z80
Nov 15 '20 at 3:17
15
Measuring frame length on the ZX Spectrum
Jun 15 '16 at 4:30
14
What kind of software was used to develop Nintendo 64 titles?
May 23 '16 at 5:54
13
Did Microsoft BASIC ever use Z80 only instructions?
Apr 18 '18 at 18:31
13
Is NitrOS-9/OS-9 a preemptive multitasking environment?
Jun 20 '16 at 19:57
12
z80 CPU User Manual AND P/V Flag
Mar 25 '17 at 7:00
12
What did POKE 842,13 on Atari do? (Jamming the Return key)
May 23 '16 at 21:01
12
How was polyphony achieved on systems with only one audio channel?
May 19 '16 at 7:42
11
Intel 8080 - Behaviour of the carry bit when comparing a value with 0
May 7 '18 at 0:04
10
How fast is memcpy on the Z80?
Sep 16 '17 at 20:32
9
Why did MS BASIC use the line number for FOR loops?
Aug 10 '19 at 8:00
8
What effect does exiting a FOR/NEXT loop early have on the TRS-80 Color Computer?
May 9 '20 at 21:42
8
Accelerators for Z80 micros?
Jan 9 '20 at 18:15
8
Was there any indication that video game companies tried to circumvent Game Shark?
Oct 6 '18 at 10:23
8
Carry flag in 8080/8085 subtraction
Mar 11 '18 at 21:39
7
Arithmetic operations on multiple words on the PDP-8
Oct 20 '16 at 19:20
7
How to use virtual cassettes with Matthew Reed's TRS-80 Model III emulator? (TRS32)
May 19 '16 at 19:24
6
How do Z80 Block Transfer instructions work?
Jan 12 '18 at 1:29
6
Intel 8080 Read/Set Interrupt Mask Instructions
May 19 '16 at 21:48
5
Make the “z80asm” assembler place an instruction at a known memory address
Dec 29 '20 at 20:16
5
What is known about the internal workings of the Z80?
May 24 '19 at 7:55
1
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