You might be able to blame the play station 2 and the two different MIPS chips it had. I did two compilers. The FP was very unusual and one was LE and the other BE. Inferno port worked well.
brucee On 27 December 2013 14:41, cherry <[email protected]> wrote: > > > > On Thu, Dec 26, 2013 at 6:46 PM, cherry <[email protected]> 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 > >
