jan at verhoeven272.nl
Tue Apr 15 10:56:18 CEST 2014
Holger Goetz wrote:
> my 2cts:
> This sounds like best thinking for the emulator, but it makes a
> difference for the FPGA, where it is like it's with most embedded
> systems: "size matters". That was done to keep memory requirements low
> (well, even lower).
We are talking about an FPGA board with 1.000.000 bytes of RAM. Not a
PIC32 SBC with 256 bytewide registers. Or a ZX81 with a whopping 1024
bytes of 250 ns SRAM.
And the extra cost is just one 32 bit word....
And, let's face it, who ever needs floating point numbers when you can
use scaled integers?
NW says: make it as simple as possible. An FPnum format consisting of
1/4 word exponent and 3/4 word mantissa is *not* simple. We should act
on his words and improve this, now that things are still in the infant
Have you seen the FP routines in the emulator? It's complex math. And
More information about the Oberon