User cjs

5

26

votes

3

answers

11k

views

What does a Nintendo Game Boy do when turned on without a game cartridge inserted?

game-boy

Jul 22 at 8:19 Kaz 6,511

2

24

votes

3

answers

3k

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What are uses of the byte after BRK instruction on 6502?

6502 interrupt

Sep 13 at 9:02 Raffzahn 90.7k

5

19

votes

1

answer

2k

views

When low-level formatting a floppy, how does one ensure any existing sector markers are overwritten?

floppy-disk

Mar 2 at 13:08 bodgit 253

1

19

votes

1

answer

1k

views

How does the C64 get an accurate TOD clock on 50 Hz power?

commodore-64 power

Nov 13 at 12:32 Raffzahn 90.7k

1

15

votes

1

answer

2k

views

Why did the Apple IIe use a 2 MHz-rated 6502, even though it ran at only 1 MHz?

apple-ii 6502

Mar 17 at 3:32 cjs 14.3k

2

15

votes

1

answer

552

views

Under what circumstances would RAM locations 0 and 1 be written and/or read on the C64?

commodore-64 memory

Jan 3 at 21:39 Ola Ström 303

1

15

votes

1

answer

1k

views

What's the timeline of Motorola 6800-family CPUs from 1974 to 1979?

6800

Aug 14 at 11:38 cjs 14.3k

6

14

votes

3

answers

2k

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What LISP compilers and interpreters were available for 8-bit machines?

history 8-bit-microcomputers lisp

Sep 21 at 5:59 cjs 14.3k

2

14

votes

4

answers

1k

views

Why is the unchangable Nintendo Game Boy logo in the cartridge?

game-boy

Jul 23 at 5:00 cjs 14.3k

1

12

votes

1

answer

416

views

How did the Apple 1 video circuit work?

video apple-1

Jan 22 at 5:42 cjs 14.3k

3

12

votes

2

answers

852

views

What are my modern options for loading programs and data files on the Apple IIc?

apple-ii data-transfer

Nov 13 at 1:00 Nick Westgate 4,982

1

12

votes

1

answer

970

views

On what Apple II and II+ keyboards can the ']' character be generated?

apple-ii keyboards

Oct 9 at 8:36 Raffzahn 90.7k

3

12

votes

3

answers

996

views

How did the Altair 8800 front panel load the program counter?

altair-8800 front-panel

Sep 1 at 12:18 比尔盖子 1,762

1

11

votes

0

answers

415

views

Why did some MOS 6502 packages have holes in them?

6502 chip

Mar 28 at 9:29 cjs 14.3k

11

votes

2

answers

877

views

Did all integrated Commodore PET monitors always use 60 Hz refresh?

commodore crt-monitor commodore-pet

Dec 13 at 2:31 cjs 14.3k

1

11

votes

4

answers

2k

views

Why isn't the WDC 65816 available in “externally” 16-bit versions?

65816

Dec 11 at 15:58 Glen Yates 103

9

votes

4

answers

588

views

Which cartridges were typically used together on Commodore 64 systems?

commodore-64 game-cartridge

Oct 29 at 16:04 Brian H 37.1k

1

9

votes

1

answer

2k

views

What was the first LISP compiler?

history compilers lisp

Sep 21 at 5:59 cjs 14.3k

1

9

votes

2

answers

504

views

How do you send code to a Commodore disk drive and run it?

commodore disk-drive

Sep 9 at 13:50 Raffzahn 90.7k

9

votes

3

answers

531

views

Why did 1970s front panels prefer momentary toggle switches to push buttons?

front-panel

Sep 8 at 0:11 Julie in Austin 101

8

votes

4

answers

1k

views

What was the earliest microcomputer Logo language implementation?

programming logo-language

Jan 16 at 20:28 Lars Brinkhoff 1,166

1

8

votes

3

answers

467

views

Are there any open-source C64 DOS wedges and fast loaders?

commodore-64 floppy-disk game-cartridge

Jan 14 at 19:25 C64Fan 31

8

votes

1

answer

237

views

What is the exact bus protocol used by the C64/C128 REU?

commodore-64 commodore-128 dma

Nov 13 at 17:16 Brian H 37.1k

1

8

votes

2

answers

378

views

What's the best way to hook up an external power supply to the Apple IIc without a 7-pin female DIN plug?

apple-ii power

Nov 7 at 9:48 cjs 14.3k

2

7

votes

2

answers

655

views

What does Shift-RETURN do on Commodore's 8-bit computers?

commodore-64 commodore

1d ago Rhialto supports Monica 283

7

votes

1

answer

260

views

What is a “stunt box”?

history

Mar 5 at 18:24 Solomon Slow 726

7

votes

2

answers

581

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How was text handled on the Amstrad CPC 464?

text cpc464

Feb 24 at 15:52 neuro_sys 171

7

votes

4

answers

400

views

What's the easiest way to bring up a MACLISP REPL on modern machines?

lisp

Feb 5 at 13:22 Lars Brinkhoff 1,166

1

7

votes

2

answers

206

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What are the most common Apple II disk image formats and what hardware disk drive emulators can use them?

apple-ii floppy-disk floppy-drive

Nov 6 at 9:12 TeaRex 71

7

votes

2

answers

340

views

Is it safe for C64 cartridges to respond to read and/or write requests on “unmapped” addresses?

commodore-64 rom game-cartridge ram

Oct 21 at 20:42 Ola Ström 303

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66 Questions

What does a Nintendo Game Boy do when turned on without a game cartridge inserted?

What are uses of the byte after BRK instruction on 6502?

When low-level formatting a floppy, how does one ensure any existing sector markers are overwritten?

How does the C64 get an accurate TOD clock on 50 Hz power?

Why did the Apple IIe use a 2 MHz-rated 6502, even though it ran at only 1 MHz?

Under what circumstances would RAM locations 0 and 1 be written and/or read on the C64?

What's the timeline of Motorola 6800-family CPUs from 1974 to 1979?

What LISP compilers and interpreters were available for 8-bit machines?

Why is the unchangable Nintendo Game Boy logo in the cartridge?

How did the Apple 1 video circuit work?

What are my modern options for loading programs and data files on the Apple IIc?

On what Apple II and II+ keyboards can the ']' character be generated?

How did the Altair 8800 front panel load the program counter?

Why did some MOS 6502 packages have holes in them?

Did all integrated Commodore PET monitors always use 60 Hz refresh?

Why isn't the WDC 65816 available in “externally” 16-bit versions?

Which cartridges were typically used together on Commodore 64 systems?

What was the first LISP compiler?

How do you send code to a Commodore disk drive and run it?

Why did 1970s front panels prefer momentary toggle switches to push buttons?

What was the earliest microcomputer Logo language implementation?

Are there any open-source C64 DOS wedges and fast loaders?

What is the exact bus protocol used by the C64/C128 REU?

What's the best way to hook up an external power supply to the Apple IIc without a 7-pin female DIN plug?

What does Shift-RETURN do on Commodore's 8-bit computers?

What is a “stunt box”?

How was text handled on the Amstrad CPC 464?

What's the easiest way to bring up a MACLISP REPL on modern machines?

What are the most common Apple II disk image formats and what hardware disk drive emulators can use them?

Is it safe for C64 cartridges to respond to read and/or write requests on “unmapped” addresses?