brock@tuvie (Inst.f.Prakt.Info 1802) (07/28/89)
I am writing an intermediate code interpreter using direct threaded
code for a DEC-3100. Using direct threaded code it is necessary,
that code sequences starts at fixed locations. Missing an .org
pseudo op like in 68000 assemblers i use the .space pseudo op. But
it is impossible to generate an absolute expression using the
difference of two relocatable-symbols. Further it is a very bad
choice to use the dollar sign for registers in an assembler which
uses m4 as optional preprocessor. So I must mix m4 and c-
preprocessor commands. My only assembler programming reference is
R2000 RISC Architecture written by Gerry Kane. Does anybody know an
assembler or preprocessor for the DEC-3100, which has an org pseudo
op, can evaluate the difference of two relocatable symbols and uses
r0 to r31 for registers. Does anybody know further literature.
Thanks in advanve
Andi
(Andi Krall, andi@vip.at andi@vip.uucp)