11 Jan
2017
11 Jan
'17
9:19 a.m.
On Wed, Jan 11, 2017 at 9:10 AM, Adrian Graham <binarydinosaurs at gmail.com>
wrote:
Hi folks,
Any 8085 assembler geeks in the house?
A uProcessor geek, but not 8085 :(
However, Wikipedia mentions:
" Undocumented instructions
A number of undocumented instructions and flags were discovered by two
software engineers, Wolfgang Dehnhardt and Villy M. Sorensen in the process
of developing an 8085 assembler. These instructions use 16-bit operands and
include indirect loading and storing of a word, a subtraction, a shift, a
rotate, and offset operations.[7]
7. Dehnhardt, Wolfgang; M. Sorensen, Villy (January 1979). "Unspecified
8085 op codes enhance programming". Electronics. McGraw-Hill: 144?145. ISSN
0013-5070."
-- Charles