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Diffstat (limited to 'src/mess/machine/p2000t.c')
-rw-r--r--src/mess/machine/p2000t.c157
1 files changed, 0 insertions, 157 deletions
diff --git a/src/mess/machine/p2000t.c b/src/mess/machine/p2000t.c
deleted file mode 100644
index 224e2e462ae..00000000000
--- a/src/mess/machine/p2000t.c
+++ /dev/null
@@ -1,157 +0,0 @@
-// license:???
-// copyright-holders:Paul Daniels
-/**********************************************************************
-
- machine.c
-
- Functions to emulate general aspects of the machine (RAM, ROM, interrups,
- I/O ports)
-
-**********************************************************************/
-
-#include "includes/p2000t.h"
-
-#define P2000M_101F_CASDAT 0x01
-#define P2000M_101F_CASCMD 0x02
-#define P2000M_101F_CASREW 0x04
-#define P2000M_101F_CASFOR 0x08
-#define P2000M_101F_KEYINT 0x40
-#define P2000M_101F_PRNOUT 0x80
-
-#define P2000M_202F_PINPUT 0x01
-#define P2000M_202F_PREADY 0x02
-#define P2000M_202F_STRAPN 0x04
-#define P2000M_202F_CASENB 0x08
-#define P2000M_202F_CASPOS 0x10
-#define P2000M_202F_CASEND 0x20
-#define P2000M_202F_CASCLK 0x40
-#define P2000M_202F_CASDAT 0x80
-
-#define P2000M_303F_VIDEO 0x01
-
-#define P2000M_707F_DISA 0x01
-
-/*
- Keyboard port 0x0x
-
- If the keyboard interrupt is enabled, all keyboard matrix rows are
- connected and reading from either of these ports will give the
- keyboard status (FF=no key pressed)
-
- If the keyboard interrupt is disabled, reading one of these ports
- will read the corresponding keyboard matrix row
-*/
-READ8_MEMBER( p2000t_state::p2000t_port_000f_r )
-{
- if (m_port_101f & P2000M_101F_KEYINT)
- {
- return (
- m_keyboard[0]->read() & m_keyboard[1]->read() &
- m_keyboard[2]->read() & m_keyboard[3]->read() &
- m_keyboard[4]->read() & m_keyboard[5]->read() &
- m_keyboard[6]->read() & m_keyboard[7]->read() &
- m_keyboard[8]->read() & m_keyboard[9]->read());
- }
- else
- if (offset < 10)
- {
- return m_keyboard[offset]->read();
- }
- else
- return 0xff;
-}
-
-
-/*
- Input port 0x2x
-
- bit 0 - Printer input
- bit 1 - Printer ready
- bit 2 - Strap N (daisy/matrix)
- bit 3 - Cassette write enabled
- bit 4 - Cassette in position
- bit 5 - Begin/end of tape
- bit 6 - Cassette read clock
- bit 7 - Cassette read data
-*/
-READ8_MEMBER( p2000t_state::p2000t_port_202f_r )
-{
- return (0xff);
-}
-
-
-/*
- Output Port 0x1x
-
- bit 0 - Cassette write data
- bit 1 - Cassette write command
- bit 2 - Cassette rewind
- bit 3 - Cassette forward
- bit 4 - Unused
- bit 5 - Unused
- bit 6 - Keyboard interrupt enable
- bit 7 - Printer output
-*/
-WRITE8_MEMBER( p2000t_state::p2000t_port_101f_w )
-{
- m_port_101f = data;
-}
-
-/*
- Scroll Register 0x3x (P2000T only)
-
- bit 0 - /
- bit 1 - |
- bit 2 - | Index of the first character
- bit 3 - | to be displayed
- bit 4 - |
- bit 5 - |
- bit 6 - \
- bit 7 - Video disable (0 = enabled)
-*/
-WRITE8_MEMBER( p2000t_state::p2000t_port_303f_w )
-{
- m_port_303f = data;
-}
-
-/*
- Beeper 0x5x
-
- bit 0 - Beeper
- bit 1 - Unused
- bit 2 - Unused
- bit 3 - Unused
- bit 4 - Unused
- bit 5 - Unused
- bit 6 - Unused
- bit 7 - Unused
-*/
-WRITE8_MEMBER( p2000t_state::p2000t_port_505f_w )
-{
- m_speaker->level_w(BIT(data, 0));
-}
-
-/*
- DISAS 0x7x (P2000M only)
-
- bit 0 - Unused
- bit 1 - DISAS enable
- bit 2 - Unused
- bit 3 - Unused
- bit 4 - Unused
- bit 5 - Unused
- bit 6 - Unused
- bit 7 - Unused
-
- When the DISAS is active, the CPU has the highest priority and
- video refresh is disabled when the CPU accesses video memory
-
-*/
-WRITE8_MEMBER( p2000t_state::p2000t_port_707f_w )
-{
- m_port_707f = data;
-}
-
-WRITE8_MEMBER( p2000t_state::p2000t_port_888b_w ) {}
-WRITE8_MEMBER( p2000t_state::p2000t_port_8c90_w ) {}
-WRITE8_MEMBER( p2000t_state::p2000t_port_9494_w ) {}