KIM Kenner 19 Patches op Basic Hans Otten, translated by Hans Otten, 20211
May 1981 Byte Magzine had an article in System Notes, Faster Basic for Ohio Scientific.
The article described how the first batch of the 6502 had a faulty ROR instruction, so the programmers of Microsoft Basic had to work around this missing instruction with a slower replacement, (Note 2021: this is well explained in the Pagetable MS Basic articles) and how to patch this to really use the ROR instruction and speed up things.
A letter to the editor in a later Byte (September 1981?) showed the patches required for the KB9 KIM-1 version.
Location $37DE to $3801 and $38D2 to $3903 are now unused.
This patch may speed up KB9 quite a bit for number crunching.
See also:
Elektor Junior ASSM/TED
MAE ASSM/TED for the Elektor Junior
Adapted version for the Junior of the KIM-1 MAE. Adaptations from the KIM User Cl...
KIM-1 Macro Assembler Editor
I bought MAE in 1980 for Use Schroder, Ingenieur bureau Schroder, as a package for the KIM-1. As did some friends in the...
MAE ASSM/TED CW Moser
MAE (Macro Assembler Text Editor) or ASSM/TED is a program sold by Eastern House Software for the KIM-1, Apple, PET, C64...
SYM-1 RAE
SYM-1 Resident Assembler Editor RAE
Written by C.W. Moser, other versions known as MAE or ASSM/TED. RAE is an optional ...