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Diffstat (limited to 'src/devices/cpu/m6502/m4510.h')
-rw-r--r--src/devices/cpu/m6502/m4510.h39
1 files changed, 25 insertions, 14 deletions
diff --git a/src/devices/cpu/m6502/m4510.h b/src/devices/cpu/m6502/m4510.h
index 2db5ea3fde3..c0e21977c2b 100644
--- a/src/devices/cpu/m6502/m4510.h
+++ b/src/devices/cpu/m6502/m4510.h
@@ -4,7 +4,7 @@
m4510.h
- 65ce02 with a mmu and a port
+ 65ce02 with a mmu and a cia integrated
***************************************************************************/
@@ -26,34 +26,37 @@ public:
bool get_nomap() const { return nomap; }
+ uint8_t get_port();
+ void set_pulls(uint8_t pullup, uint8_t pulldown);
+
+ auto read_callback() { return read_port.bind(); }
+ auto write_callback() { return write_port.bind(); }
+
protected:
uint32_t map_offset[2];
uint8_t map_enable;
bool nomap;
- class mi_4510_normal : public memory_interface {
+ class mi_4510 : public memory_interface {
public:
m4510_device *base;
- mi_4510_normal(m4510_device *base);
- virtual ~mi_4510_normal() {}
+ mi_4510(m4510_device *base);
+ virtual ~mi_4510() {}
virtual uint8_t read(uint16_t adr) override;
virtual uint8_t read_sync(uint16_t adr) override;
virtual uint8_t read_arg(uint16_t adr) override;
virtual void write(uint16_t adr, uint8_t val) override;
};
- class mi_4510_nd : public mi_4510_normal {
- public:
- mi_4510_nd(m4510_device *base);
- virtual ~mi_4510_nd() {}
- virtual uint8_t read_sync(uint16_t adr) override;
- virtual uint8_t read_arg(uint16_t adr) override;
- };
+ devcb_read8 read_port;
+ devcb_write8 write_port;
+
+ uint8_t pullup, floating, dir, port, drive;
- virtual void device_start() override;
- virtual void device_reset() override;
- virtual bool memory_translate(int spacenum, int intention, offs_t &address) override;
+ virtual void device_start() override ATTR_COLD;
+ virtual void device_reset() override ATTR_COLD;
+ virtual bool memory_translate(int spacenum, int intention, offs_t &address, address_space *&target_space) override;
inline uint32_t map(uint16_t adr) {
if(map_enable & (1 << (adr >> 13))) {
@@ -64,6 +67,14 @@ protected:
return adr;
}
+ uint8_t dir_r();
+ void dir_w(uint8_t data);
+ uint8_t port_r();
+ void port_w(uint8_t data);
+
+ void init_port();
+ void update_port();
+
#define O(o) void o ## _full(); void o ## _partial()
// 4510 opcodes