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author mooglyguy <therealmogminer@gmail.com>2019-03-17 11:10:17 +0100
committer MooglyGuy <therealmogminer@gmail.com>2019-03-17 11:10:43 +0100
commit16b1e9923d9c9aceb4a7665e9f21c9806acb309d (patch)
tree252296c9a266c7e23aedf00f0029a1a73ee89696 /src/devices/machine/ins8154.h
parent735ac8764eeb35866fe3ce1286f92d4ecfe7a823 (diff)
-ins8154: Added internal 128-byte RAM and simplified handlers. [Ryan Holtz]
-astrocde: Various changes. [Ryan Holtz] * Added I/O access handling to expansion slot. * Added INS8154 I/O functionality to Blue RAM boards (RAM not yet hooked up). * Hooked up cassette saving and loading to Blue RAM boards.
Diffstat (limited to 'src/devices/machine/ins8154.h')
-rw-r--r--src/devices/machine/ins8154.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/src/devices/machine/ins8154.h b/src/devices/machine/ins8154.h
index 5ba94ab9cda..2ce40ec9e70 100644
--- a/src/devices/machine/ins8154.h
+++ b/src/devices/machine/ins8154.h
@@ -47,11 +47,13 @@ public:
auto out_b() { return m_out_b_cb.bind(); }
auto out_irq() { return m_out_irq_cb.bind(); }
- DECLARE_READ8_MEMBER( ins8154_r );
- DECLARE_WRITE8_MEMBER( ins8154_w );
+ uint8_t read_io(offs_t offset);
+ void write_io(offs_t offset, uint8_t data);
+ uint8_t read_ram(offs_t offset);
+ void write_ram(offs_t offset, uint8_t data);
- DECLARE_WRITE8_MEMBER( ins8154_porta_w );
- DECLARE_WRITE8_MEMBER( ins8154_portb_w );
+ void porta_w(uint8_t data);
+ void portb_w(uint8_t data);
protected:
// device-level overrides
@@ -77,6 +79,9 @@ private:
uint8_t m_mdr; /* Mode Definition Register */
uint8_t m_odra; /* Output Definition Register Port A */
uint8_t m_odrb; /* Output Definition Register Port B */
+
+ /* on-board RAM */
+ uint8_t m_ram[0x80];
};