From 6a4854bbc0905281ff29c58457b2d7723a23373e Mon Sep 17 00:00:00 2001 From: arbee Date: Sat, 13 May 2023 23:30:59 -0400 Subject: apple2e: IIe does not have IOUDIS, only IIc/IIc Plus. [R. Belmont, TomCh] --- src/mame/apple/apple2e.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/mame/apple/apple2e.cpp b/src/mame/apple/apple2e.cpp index a69b5a799e5..034b885cd87 100644 --- a/src/mame/apple/apple2e.cpp +++ b/src/mame/apple/apple2e.cpp @@ -1663,7 +1663,8 @@ void apple2e_state::do_io(int offset, bool is_iic) } } - if (m_ioudis) + // IIe does not have IOUDIS (ref: on-h/w tests by TomCh) + if ((m_ioudis) || (!m_isiic && !m_isace500)) { switch (offset) { -- cgit v1.2.3