To:	Steve Russell, Jay Sage
From:	Bridger Mitchell
subj:	SLR180P.BUG report
date:	4/15/90
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SLR180+ v 1.12 #PL006: Assembler fails with bogus errors,
*depending on size of tpa and the number of output files*

Source files:
  1 main file + 10 include files, total of ~ 156K.
  assemble absolute to COM, with com and lst outputs.
  When it assembles correctly, it goes virtual in pass 2.
  When it fails, the first error message occurs in pass 1.

The following tests used COM and LST output files, no SYM file. 
----------------------------
Using #1 System:
ON!, 2MB ramdisk as A:
ZSDOS 1.1
All files on A:
A: is the virtual drive

Assembly fails with first messages:
  IF BMSEARCH  Must be absolute this pass
  this message occurs several times (there are several BMSEARCH conditionals)
  in pass 2 there are a large number of "undefined symbol" messages

when top of tpa is:
  D606 hex
  D206
  d806
  d906
  da06
  da4f

It assembles correctly when top of tpa is
  d606
  d706

----------------------------
Using #2 System:
SB180FX
all files on N: (ramdisk)

Assembles correctly when top of tpa is
  D606 hex


Fails when top of tpa is
  CDB1 hex
  CD06 hex	fails in pass 2
  CC06		fails in pass 1
  CB06		fails in pass 1

Notes:

Files verified by CRC as identical on both systems.
Experimenting with various 180FIGP settings to eliminate
disk optimization had no effect.

The size of tpa is set by an RSX below the BDOS in all cases on the
ON!.

On the SB180FX, there is no rsx when the tpa goes up to d606 hex.
The other tests on that system use an rsx.

-----------

On the ON! system I also experimented with COM, LST and SYM output.
Now, in this case, the D606-size tpa FAILS!

 this message occurs