ARM newbie...newbie questions!

Note: This was originally posted on 8th February 2012 at http://forums.arm.com Hello everybody, this is my first post in the forum. I'm an AVR 8-bit user curious about the ARM world, the Cortex M0 side...
Newbie question - where to start

Hi! I have an education from both hardware and software computer engineering, but I have only worked with software for many years now. I'm not up to date with what's what in the world of embedded...
newbie question re DATA / IDATA

I use uVision2, and am moving from 87C51 to 87C51RA2 . . . going from 128B of RAM to 512B RAM. Was having trouble with lack of RAM in the C51 due to a large number of variables. From what I understand...
Printf question (newbie)

I want to print in a terminal the "%"character when I put printf(" %c % ",var); the % doesn't print why??
Newbie dumb question

Why, when I use the Simulator on this code, does A return as 0 when it should be 3? MAIN: NOP MOV DPTR, #CommandTable MOVX A, @DPTR ; Get the offset MOV DPTR, #Subroutines JMP @A+DPTR CommandTable...