On Thu, Dec 26, 2013 at 6:46 PM, cherry <lunaria21@gmail.com> wrote:

Another issue is 0l/vl seems to output wrong bits for single precision floats in little endian mode, due to a similar reason: it used bytes 4-7 instead of 0-3. This seems to fix it:

% diff /sys/src/cmd/vl/asm.c asm.c
672c672,675
<                     buf.dbuf[l] = cast[fnuxi8[i+4]];
---
>                     if(little)
>                         buf.dbuf[l] = cast[fnuxi8[i]];
>                     else
>                         buf.dbuf[l] = cast[fnuxi8[i+4]];

An alternative fix would be simply use fnuxi4 instead of fnuxi8, so that both BE and LE would work (I guess, don't have BE machine to test).

Indeed I can test it, simply diff the output of vl before and after. Using, fnuxi4 does NOT work for BE, as fnuxi4 is only set for LE (obj.c:1385,1404), probably due to (the same or another) historical reason.

- cherry