diff options
Diffstat (limited to 'src/devices/cpu/m6502/m4510.h')
-rw-r--r-- | src/devices/cpu/m6502/m4510.h | 39 |
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 |