So you want a free macro assembler for ARM?
www.goldroad.co.uk
very nice one it seems..

-henrik

-----Ursprungligt meddelande-----
Fran: Dave Murphy [mailto:wintermute2002@...]
Skickat: den 1 oktober 2002 23:05
Till: gbadev@yahoogroups.com
Amne: [gbadev] ARM versus Thumb



Does anyone have any thoughts on the advantages/disadvantages of ARM code
versus THUMB code?

It seems to be generally accepted that Thumb is more efficient from ROM &
ARM is more efficient from internal RAM. I haven't really tested much other
than GCC compiled Thumb code is plenty fast enough for sprite based 2d games
& going 100% assembly in either mode really isn't worth the hassle for
simple code. It seems obvious that using ARM in internal RAM for rasterising
code should be the way to go.

Has anyone tested the efficiency of hand optimised code for both modes in
internal RAM?

Personally I prefer assembly to high level languages but I haven't yet found
a decent macro assember for ARM that doesn't cost big bucks. Keeping an eye
on the assembly output of GCC seems to be the best way of optimising code &
learning how to get the compiler to do what you want.

Dave







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