V6/usr/source/s3/fpx.s

Find at most related files.
including files from this version of Unix. 
/ fpx -- floating point simulation

.data
reenter: 1

.bss
asign:	.=.+2
areg:	.=.+8
aexp:	.=.+2
bsign:	.=.+2
breg:	.=.+8
bexp:	.=.+2

fpsr:	.=.+2
trapins: .=.+2

ac0:	.=.+8.
ac1:	.=.+8.
ac2:	.=.+8.
ac3:	.=.+8.
ac4:	.=.+8.
ac5:	.=.+8.

sr0:	.=.+2
sr1:	.=.+2
	.=.+2
	.=.+2
	.=.+2
	.=.+2
ssp:	.=.+2
spc:	.=.+2
sps:	.=.+2
pctmp:	.=.+8