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GeneralRe: Over 6,000 pages, but all you needed (1998) Pin
Kornfeld Eliyahu Peter18-Feb-20 20:22
mveKornfeld Eliyahu Peter18-Feb-20 20:22 
GeneralRe: Over 6,000 pages, but all you needed (1998) Pin
raddevus19-Feb-20 2:17
mvaraddevus19-Feb-20 2:17 
GeneralRe: Over 6,000 pages, but all you needed (1998) Pin
Kornfeld Eliyahu Peter19-Feb-20 2:49
mveKornfeld Eliyahu Peter19-Feb-20 2:49 
GeneralRe: Over 6,000 pages, but all you needed (1998) Pin
maze319-Feb-20 5:02
professionalmaze319-Feb-20 5:02 
GeneralRe: Over 6,000 pages, but all you needed (1998) Pin
raddevus19-Feb-20 5:20
mvaraddevus19-Feb-20 5:20 
GeneralRe: Over 6,000 pages, but all you needed (1998) Pin
James Curran19-Feb-20 5:22
MemberJames Curran19-Feb-20 5:22 
GeneralRe: Over 6,000 pages, but all you needed (1998) Pin
raddevus19-Feb-20 7:50
mvaraddevus19-Feb-20 7:50 
GeneralRe: Over 6,000 pages, but all you needed (1998) Pin
enhzflep22-Feb-20 3:46
Memberenhzflep22-Feb-20 3:46 
Ah yes.. Good old Int 0x21 - The DOS interrupt, or in clearer english - the entry point to much of the functionality offered by the OS itself. Set AH to the value of the desired function, then fill other registers as required and finally interrupt.

I seem to remember it as sport - trying to identify other Ints that would perform the same basic functionality, albeit with greater convenience. Ralf Brown's interrupt list was like a divine gift from the gods. Advanced Assembly Language by Allen Wyatt is still one of my favourite chunks of dead trees devoted to computing.

Remember writing my first memory editor and then first hex (file) editor. It was always fun to watch 0x46C and 0x46D in memory, since that was where the timer-tick count was stored - you could watch it update 18 times a second or so. Altering it was even more fun! (y2k bug - you were boring)

GeneralRe: Over 6,000 pages, but all you needed (1998) Pin
Peter Shaw20-Feb-20 4:00
professionalPeter Shaw20-Feb-20 4:00 
GeneralSummer Sport Pin
W Balboos, GHB18-Feb-20 7:44
mveW Balboos, GHB18-Feb-20 7:44 
GeneralRe: Summer Sport Pin
dandy7218-Feb-20 8:03
Memberdandy7218-Feb-20 8:03 
GeneralRe: Summer Sport Pin
W Balboos, GHB19-Feb-20 2:05
mveW Balboos, GHB19-Feb-20 2:05 
GeneralRe: Summer Sport Pin
Richard MacCutchan18-Feb-20 10:34
mveRichard MacCutchan18-Feb-20 10:34 
GeneralRe: Summer Sport Pin
W Balboos, GHB19-Feb-20 2:09
mveW Balboos, GHB19-Feb-20 2:09 
GeneralRIP Andrew Weatherall (Musician/DJ) Pin
Maximilien18-Feb-20 7:34
MemberMaximilien18-Feb-20 7:34 
GeneralVBA in Excel Pin
Chris Maunder18-Feb-20 6:06
cofounderChris Maunder18-Feb-20 6:06 
GeneralRe: VBA in Excel Pin
CHill6018-Feb-20 6:15
mveCHill6018-Feb-20 6:15 
GeneralRe: VBA in Excel Pin
OriginalGriff18-Feb-20 6:16
mveOriginalGriff18-Feb-20 6:16 
GeneralRe: VBA in Excel Pin
Richard Deeming18-Feb-20 6:58
mveRichard Deeming18-Feb-20 6:58 
GeneralRe: VBA in Excel Pin
Chris Maunder18-Feb-20 7:35
cofounderChris Maunder18-Feb-20 7:35 
GeneralRe: VBA in Excel Pin
Richard Deeming18-Feb-20 7:44
mveRichard Deeming18-Feb-20 7:44 
GeneralRe: VBA in Excel Pin
Mark_Wallace18-Feb-20 12:14
MemberMark_Wallace18-Feb-20 12:14 
GeneralRe: VBA in Excel Pin
Mike Hankey18-Feb-20 8:51
professionalMike Hankey18-Feb-20 8:51 
GeneralRe: VBA in Excel Pin
Jörgen Andersson18-Feb-20 18:45
professionalJörgen Andersson18-Feb-20 18:45 
GeneralRe: VBA in Excel Pin
JurgenP318-Feb-20 21:52
MemberJurgenP318-Feb-20 21:52 

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