From b63b880b8c6bd345d2b3dcce74cd67da36671a75 Mon Sep 17 00:00:00 2001 From: Chris Pressey Date: Thu, 29 Mar 2018 16:58:50 +0100 Subject: [PATCH] Update documentation. --- HISTORY.md | 2 ++ README.md | 2 +- eg/README.md | 6 +++--- 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/HISTORY.md b/HISTORY.md index b083f05..993e466 100644 --- a/HISTORY.md +++ b/HISTORY.md @@ -10,6 +10,8 @@ History of SixtyPical * Accessing zero-page with `ld` and `st` generates zero-page opcodes. * A `byte` or `word` table can be initialized with a list of constants. * Branching and repeating on the `n` flag is now supported. +* The `--dump-fallthru-map` option outputs a map, in JSON format, of + which routines can be "fallen through" to by other routines. * Specifying multiple SixtyPical source files will produce a single compiled result from their combination. * Rudimentary support for Atari 2600 prelude in a 4K cartridge image, diff --git a/README.md b/README.md index 8b898fb..65b2036 100644 --- a/README.md +++ b/README.md @@ -103,6 +103,6 @@ is probably NP-complete. But doing it adequately is probably not that hard. * Automatic tail-call optimization (could be tricky, w/constraints?) * Possibly `ld x, [ptr] + y`, possibly `st x, [ptr] + y`. * Maybe even `copy [ptra] + y, [ptrb] + y`, which can be compiled to indirect LDA then indirect STA! -* Optimize `ld a, z` and `st a, z` to zero-page operations if address of z < 256. +* Optimize `or|and|eor a, z` to zero-page operations if address of z < 256. [VICE]: http://vice-emu.sourceforge.net/ diff --git a/eg/README.md b/eg/README.md index a805a60..58947cc 100644 --- a/eg/README.md +++ b/eg/README.md @@ -40,9 +40,9 @@ for example [hearts.60p](vic20/hearts.60p). ### atari2600 -In the [vic20](vic20/) directory are programs that run on the +In the [atari2600](atari2600/) directory are programs that run on the Atari 2600 (4K cartridge). The directory itself contains a simple -demo, [atari-2600-example.60p](atari2600/atari-2600-example.60p). -(Doesn't work yet.) +demo, [smiley.60p](atari2600/smiley.60p) which was converted from an +older Atari 2600 skeleton program written in [Ophis][]. [Ophis]: http://michaelcmartin.github.io/Ophis/