hippietrail
  • Member for 5 years, 5 months
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7 answers
24 votes
4k views
3 bookmarks
Was it possible programmatically to manipulate the volume as well as the pitch on computers with no sound chip?
3 answers
15 votes
1k views
2 bookmarks
Are there games for the C128 that run (mainly) on the Z80 rather than the 6502?
1 answers
14 votes
663 views
1 bookmarks
Did the Samsung SPC-650 have any hardware or firmware differences to the genuine Sinclair Spectrum+?
2 answers
12 votes
968 views
Did the Commodore 128's Z80 CPU also have full access to the machine's custom hardware?
1 answers
11 votes
150 views
1 bookmarks
In TRS-80 parlance when talking about disks, what are "granules" and "lumps"?
1 answers
10 votes
461 views
1 bookmarks
Understanding the DMK disk image file format used by TRS-80 emulators
1 answers
7 votes
290 views
What floppy disk format and layout and what disk image format are used for the Coleco Adam?
2 answers
7 votes
1k views
1 bookmarks
Could Tandy TRS-80 Color Computers boot from disk at all?
2 answers
7 votes
946 views
How can I programmatically determine whether an Apple II .dsk disk image is a DOS .do image or a ProDOS .po image?
2 answers
7 votes
780 views
Why does the .z80 emulator-snapshot format have separate fields for the 8-bit refresh register and bit 7 of R?
2 answers
6 votes
690 views
Did any ZX Spectrum clones use the Z80's interrupt mode zero?
2 answers
6 votes
1k views
Are .COM executable binaries real mode or protected mode?
2 answers
6 votes
853 views
1 bookmarks
What was the first microcomputer capable of working with Japanese kanji?
1 answers
6 votes
311 views
Did OSes write the floppy's logical sector number resulting from sector interleave/skew in the IDAM sector ID, or was it up to the OS?
1 answers
6 votes
226 views
Was the Ram Turbo the only 3rd party Interface 2 ROM cartridge interface for the ZX Spectrum or were there others?
1 answers
6 votes
425 views
Did the Timex Sinclair 2068 and the Sinclair ZX Interface 2 use totally different hardware and software techniques?
4 answers
5 votes
397 views
How did the Spectrum clones with TR-DOS and paged memory load and run code files from disk?
1 answers
5 votes
99 views
Length of leader block in Coco and Dragon cassette tape header and .cas tape image file format
2 answers
5 votes
711 views
2 bookmarks
Does Sinclair Spectrum BASIC have a maximum length for one line?
4 answers
5 votes
1k views
How does the Spectrum +3 know whether a disk is bootable or not?
1 answers
4 votes
169 views
At which RAM address is the Microbee disk boot sector loaded and executed?
0 answers
4 votes
140 views
What does a "DK" signature mean at the start of track 0 sector 3 of a Dragon 32/64 floppy disk?
1 answers
4 votes
185 views
Determining which sectors in an Apple II floppy disk/image are used when the boot sector declares more than 1 sectors
2 answers
3 votes
2k views
How can I get MAME to run modified ROMs whose checksums don't match the originals?
1 answers
3 votes
280 views
Loading a Tandy CoCo or a Dragon 32 machine code program from cassette with multiple "name blocks"
0 answers
3 votes
168 views
1 bookmarks
Do the Tandy CoCo and the Dragon 32 & 64 use all the same disk image file formats?
0 answers
3 votes
33 views
On the TRS-80 models I and III when is the directory track number written in the third byte of sector zero, and when in the second byte?
1 answers
3 votes
130 views
What is the layout of the directory track on a TRS-80 Model I/Model III disk?
1 answers
3 votes
180 views
Converting Apple II ProDOS blocks to DOS tracks and sectors
1 answers
3 votes
207 views
1 bookmarks
Do TRS-80 Model I and Model III load and execute /CMD files using specific memory addresses?