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Re: [avr-gcc-list] 16-bit math
From: |
Joerg Wunsch |
Subject: |
Re: [avr-gcc-list] 16-bit math |
Date: |
Sun, 14 Oct 2007 15:44:42 +0200 (MET DST) |
"Manne Tallmarken" <address@hidden> wrote:
> It seems that avr-libc have support for 16-bit math calculations for
> 8-bit controllers. This is really fantastic!
Actually, it's the compiler supporting it, not avr-libc. It supports
integer calculations up to 64 bits, and floating-point calculations
using IEEE 754 32-bit numbers. There's a support library (that
technically belongs to the compiler, rather to avr-libc) for some
operations, and as some parts of it are auto-generated, it's known to
not be very effective for 32-bit and 64-bit integer operations, but
it's fully working nevertheless.
--
cheers, J"org .-.-. --... ...-- -.. . DL8DTL
http://www.sax.de/~joerg/ NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)
- [avr-gcc-list] Fwd: [Tinyos-help] TinyOs avr-gcc-4, David Gay, 2007/10/13
- [avr-gcc-list] 16-bit math, Manne Tallmarken, 2007/10/14
- Re: [avr-gcc-list] Fwd: [Tinyos-help] TinyOs avr-gcc-4, John Regehr, 2007/10/15
- RE: [avr-gcc-list] Fwd: [Tinyos-help] TinyOs avr-gcc-4, Eric Weddington, 2007/10/15
- RE: [avr-gcc-list] Fwd: [Tinyos-help] TinyOs avr-gcc-4, John Regehr, 2007/10/15
- Re: [Tinyos-devel] RE: [avr-gcc-list] Fwd: [Tinyos-help] TinyOs avr-gcc-4, Philip Levis, 2007/10/16
- Re: [Tinyos-devel] RE: [avr-gcc-list] Fwd: [Tinyos-help] TinyOs avr-gcc-4, David Gay, 2007/10/15
- RE: [Tinyos-devel] RE: [avr-gcc-list] Fwd: [Tinyos-help] TinyOs avr-gcc-4, Eric Weddington, 2007/10/16
- Re: [Tinyos-devel] RE: [avr-gcc-list] Fwd: [Tinyos-help] TinyOs avr-gcc-4, Philip Levis, 2007/10/17
- RE: [Tinyos-devel] RE: [avr-gcc-list] Fwd: [Tinyos-help] TinyOs avr-gcc-4, Eric Weddington, 2007/10/16
- Re: [Tinyos-devel] RE: [avr-gcc-list] Fwd: [Tinyos-help] TinyOs avr-gcc-4, David Gay, 2007/10/17