[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Byte endianess vs Bit endianess

From: John Darrington
Subject: Re: Byte endianess vs Bit endianess
Date: Mon, 18 Nov 2019 19:07:36 +0100
User-agent: NeoMutt/20170113 (1.7.2)

On Mon, Nov 18, 2019 at 05:10:02PM +0100, Jose E. Marchesi wrote:

     Another alternative would be to add the ability to define "endianness
     groups" in Poke structs:
     deftype IEEE754_Double =
           int<52> fraction @ fraction_offset;
           int<11> exponent @ exponent_offset;
           int<1>  sign @ sign_offset;
     That would make the compiler to generate peek/poke instructions assuming
     the whole group shall be written as a discrete integral, endian wise.

This would seem like the right approach to me.  And if this was the
case, then the @ xxx_offset bits would be unnecessary.   It would DTRT
depending on the endianess in effect at the time.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]