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author Nigel Barnes <Pernod70@users.noreply.github.com>2019-03-10 13:23:23 +0000
committer Nigel Barnes <Pernod70@users.noreply.github.com>2019-03-10 16:03:40 +0000
commit09f698ddc8f1e0ee0196f1069a3dc44a2e13b863 (patch)
treee69a6c2cad7b96856c35f4ecd4a933a7957dd609 /src/devices/bus/spectrum/mikroplus.cpp
parentd62970843f793810da8a8bf245f00eed5c611d5c (diff)
spectrum: Improved expansion interface to allow devices to act on opcode fetches.
- Added Multiface One/128/3, and MultiPrint devices.
Diffstat (limited to 'src/devices/bus/spectrum/mikroplus.cpp')
-rw-r--r--src/devices/bus/spectrum/mikroplus.cpp20
1 files changed, 8 insertions, 12 deletions
diff --git a/src/devices/bus/spectrum/mikroplus.cpp b/src/devices/bus/spectrum/mikroplus.cpp
index 83500b856e9..87552f79bf3 100644
--- a/src/devices/bus/spectrum/mikroplus.cpp
+++ b/src/devices/bus/spectrum/mikroplus.cpp
@@ -85,23 +85,19 @@ void spectrum_mikroplus_device::device_start()
}
-//-------------------------------------------------
-// device_reset - device-specific reset
-//-------------------------------------------------
-
-void spectrum_mikroplus_device::device_reset()
-{
- io_space().install_read_handler(0xdf, 0xdf, 0, 0xff00, 0, read8smo_delegate(FUNC(spectrum_mikroplus_device::joystick_r), this));
-}
-
-
//**************************************************************************
// IMPLEMENTATION
//**************************************************************************
-uint8_t spectrum_mikroplus_device::joystick_r()
+uint8_t spectrum_mikroplus_device::iorq_r(offs_t offset)
{
- return m_joy->read() | (0xff ^ 0x1f);
+ uint8_t data = 0xff;
+
+ if (offset == 0xdf)
+ {
+ data = m_joy->read() | (0xff ^ 0x1f);
+ }
+ return data;
}
READ_LINE_MEMBER(spectrum_mikroplus_device::romcs)