From 5ede4bb286d40e42778956e77c01851bc7349193 Mon Sep 17 00:00:00 2001 From: Thomas Harte Date: Mon, 30 Jul 2018 23:17:18 -0400 Subject: [PATCH] Corrects graphics video range. --- Apple-IIe-Memory-Paging.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Apple-IIe-Memory-Paging.md b/Apple-IIe-Memory-Paging.md index 36c9d6d..b329c39 100644 --- a/Apple-IIe-Memory-Paging.md +++ b/Apple-IIe-Memory-Paging.md @@ -4,7 +4,7 @@ Apple provides multiple overlapping paging mechanisms which in total divide an A ## [0000, 0200) Reading and writing: contains auxiliary RAM if `ALTZP` is set. Contains base RAM otherwise. -## [0300, 0400); [0800, 1000); [2000, C000) +## [0300, 0400); [0800, 2000); [4000, C000) Reading: contains base RAM if `RAMRD` is reset; contains auxiliary RAM otherwise. Writing: as per reading, but regarding `RAMWRT` rather than `RAMRD`. @@ -13,7 +13,7 @@ Reading: contains auxiliary RAM if either (i) both `80STORE` and `PAGE2` are set Writing: as per reading, but regarding `RAMWRT` rather than `RAMRD`. -## [1000, 2000) +## [2000, 4000) Reading: contains auxiliary RAM if either (i) `80STORE` and `PAGE2` are set, and `TEXT` is reset; or (ii) `80STORE` is reset and `RAMRD` is set. Contains base RAM otherwise. Writing: as per reading, but regarding `RAMWRT` rather than `RAMRD`.