diff options
Diffstat (limited to 'src/devices/cpu/m6502/m4510.h')
-rw-r--r-- | src/devices/cpu/m6502/m4510.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/src/devices/cpu/m6502/m4510.h b/src/devices/cpu/m6502/m4510.h index 6f5692fb3df..c0e21977c2b 100644 --- a/src/devices/cpu/m6502/m4510.h +++ b/src/devices/cpu/m6502/m4510.h @@ -26,6 +26,12 @@ 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; @@ -43,8 +49,13 @@ protected: virtual void write(uint16_t adr, uint8_t val) override; }; - virtual void device_start() override; - virtual void device_reset() override; + devcb_read8 read_port; + devcb_write8 write_port; + + uint8_t pullup, floating, dir, port, drive; + + 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) { @@ -56,6 +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 |