Ragsdale Forth assembler history

From	"Johann Klasek - swap last two domainparts" <johann+usenet@at.klasek.invalid>
Newsgroups	comp.lang.forth
Subject	Ragsdale Forth assembler history
Date	2026-07-29 21:50 +0000
Message-ID	<ncvatlFt7ueU1@mid.individual.net> (permalink)

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Hi folks,

sometimes ago (2012) I did some re-work on a 65C02 assembler derived
from the well known Ragsdale Assembler published in c't magazin,
1984/01, p. 72, "65C02 Assembler in FORTH".

The aim was to support WDC commands (not just those from Rockwell). In
addition to a number of performance improvements (which were due to
shortcomings in the Ragsdale code), several new features were
introduced: certain structure commands, as well as loop or conditional
blocks, can now (using the word `FAR') span code sections of more than
127 bytes.
Recently, in 2026, a number of further changes were made to improve
runtime performance.

https://klasek.at/forth/ also covers a number of other Forth topics,
though the main focus there is on assemblers and disassemblers.

My test environment is a C64 Forth/79 from Performance Micro Products,
but I don't think porting it would be a problem (at least on little-
endian platforms).


Happy Forth-coding

JEEK

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Ragsdale Forth assembler history "Johann Klasek - swap last two domainparts" <johann+usenet@at.klasek.invalid> - 2026-07-29 21:50 +0000
  Re: Ragsdale Forth assembler history dxf <dxforth@gmail.com> - 2026-07-30 13:18 +1000
    Re: Ragsdale Forth assembler history "Johann Klasek - swap last two domainparts" <johann+usenet@at.klasek.invalid> - 2026-07-31 11:04 +0000

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