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Diffstat (limited to 'src/devices/cpu/mcs96/i8x9x.h')
-rw-r--r--src/devices/cpu/mcs96/i8x9x.h98
1 files changed, 98 insertions, 0 deletions
diff --git a/src/devices/cpu/mcs96/i8x9x.h b/src/devices/cpu/mcs96/i8x9x.h
new file mode 100644
index 00000000000..3f700fd6e9d
--- /dev/null
+++ b/src/devices/cpu/mcs96/i8x9x.h
@@ -0,0 +1,98 @@
+// license:BSD-3-Clause
+// copyright-holders:Olivier Galibert
+/***************************************************************************
+
+ i8x9x.h
+
+ MCS96, 8x9x branch, the original version
+
+***************************************************************************/
+
+#ifndef __I8X9X_H__
+#define __I8X9X_H__
+
+#include "mcs96.h"
+
+class i8x9x_device : public mcs96_device {
+public:
+ enum {
+ A0, A1, A2, A3, A4, A5, A6, A7,
+ SERIAL,
+ P0, P1, P2
+ };
+
+ i8x9x_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
+
+ void serial_w(UINT8 val);
+
+protected:
+ virtual void device_start();
+ virtual void device_reset();
+ virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const;
+
+ static const disasm_entry disasm_entries[0x100];
+
+ virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options);
+ virtual void do_exec_full();
+ virtual void do_exec_partial();
+ virtual void internal_update(UINT64 current_time);
+ virtual void io_w8(UINT8 adr, UINT8 data);
+ virtual void io_w16(UINT8 adr, UINT16 data);
+ virtual UINT8 io_r8(UINT8 adr);
+ virtual UINT16 io_r16(UINT8 adr);
+
+private:
+ enum {
+ IRQ_TIMER = 0x01,
+ IRQ_AD = 0x02,
+ IRQ_HSI = 0x04,
+ IRQ_HSO = 0x08,
+ IRQ_HSI0 = 0x10,
+ IRQ_SOFT = 0x20,
+ IRQ_SERIAL = 0x40,
+ IRQ_EXTINT = 0x80
+ };
+
+ struct hso_cam_entry {
+ bool active;
+ UINT8 command;
+ UINT16 time;
+ };
+
+ address_space_config io_config;
+ address_space *io;
+
+ hso_cam_entry hso_info[8];
+ hso_cam_entry hso_cam_hold;
+
+ UINT64 base_timer2, ad_done;
+ UINT8 hso_command, ad_command;
+ UINT16 hso_time, ad_result;
+ UINT8 ios0, ios1, ioc0, ioc1;
+ UINT8 sbuf, sp_stat;
+ UINT8 serial_send_buf;
+ UINT64 serial_send_timer;
+
+ UINT16 timer_value(int timer, UINT64 current_time) const;
+ UINT64 timer_time_until(int timer, UINT64 current_time, UINT16 timer_value) const;
+ void commit_hso_cam();
+ void trigger_cam(int id, UINT64 current_time);
+ void ad_start(UINT64 current_time);
+ void serial_send(UINT8 data);
+ void serial_send_done();
+};
+
+class c8095_device : public i8x9x_device {
+public:
+ c8095_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+};
+
+class p8098_device : public i8x9x_device {
+public:
+ p8098_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+};
+
+extern const device_type C8095;
+extern const device_type P8098;
+
+#endif