Peter_Warren_Lee@cup.portal.com (12/14/90)
I'm just starting out learning C and I'm looking for some help. Are there some commands in C that work like PEEK and POKE in BASIC? I'd like to be able to see the values in a range of memory but I can't find the right commands to do it. Thanks, Pete Peter_Warren_Lee@cup.portal.com
jdb@reef.cis.ufl.edu (Brian K. W. Hook) (12/15/90)
Well, assuming that you are on a non protected mode machine (ie. IBM PC) that lets you read into any absolute memory address, you can use standard C pointers to read in individual characters. However, for large memroy locations (locations outside of your segment) you needs to uses a FAR pointer. Read the documentation on MK_FP, FP_SEG, and FP_OFF for more on that. I suppose that you could use memcpy to copy a specified amount of memory and then you could examine it later as a string.... Turbo C have a poke and peek function built in, but this assumes that you are using TC on a DOS machine.
hotte@sunrise.in-berlin.de (Horst Laumer) (12/17/90)
Peter_Warren_Lee@cup.portal.com writes: >I'm just starting out learning C and I'm looking for some help. Are there >some commands in C that work like PEEK and POKE in BASIC? I'd like to >be able to see the values in a range of memory but I can't find the >right commands to do it. >Thanks, > Pete > Peter_Warren_Lee@cup.portal.com Just look at <memory.h>, and then provide the proper addresses. Works great on MS-DOS, but you surely run into trouble when f.e. trying to write to fixed adresses on a UNIX-System outside the address-space of your program. --HL -- ============================================================================ Horst Laumer, Kantstrasse 107, D-1000 Berlin 12 ! Bang-Adress: Junk-Food Domain: hotte@sunrise.in-berlin.de ! for Autorouters -- me -- Bang: ...unido!fub!geminix!sunrise.in-berlin.de!hotte