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author tim lindner <tlindner@macmess.org>2021-03-21 18:13:27 -0700
committer tim lindner <tlindner@macmess.org>2021-03-21 18:13:27 -0700
commitf7980858cd8c8ae3d088e1f8e8e8ef310ddd5f2d (patch)
treef8b4c51d10469e108039b2e8fb61e002803902c9
parent6c0b2d1642f40a1301cae62ddda4364195833fa0 (diff)
Set proper tri-state value for keyboard PIA port B
-rw-r--r--src/mame/drivers/coco12.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mame/drivers/coco12.cpp b/src/mame/drivers/coco12.cpp
index d13b16c6c32..eddfac92f4f 100644
--- a/src/mame/drivers/coco12.cpp
+++ b/src/mame/drivers/coco12.cpp
@@ -473,6 +473,7 @@ void coco12_state::coco(machine_config &config)
pia6821_device &pia0(PIA6821(config, PIA0_TAG, 0));
pia0.writepa_handler().set(FUNC(coco_state::pia0_pa_w));
pia0.writepb_handler().set(FUNC(coco_state::pia0_pb_w));
+ pia0.tspb_handler().set_constant(0xff);
pia0.ca2_handler().set(FUNC(coco_state::pia0_ca2_w));
pia0.cb2_handler().set(FUNC(coco_state::pia0_cb2_w));
pia0.irqa_handler().set(m_irqs, FUNC(input_merger_device::in_w<0>));