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Inlining 6821 PIA read/write calls

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This commit is contained in:
Nathan Woods 2011-11-15 11:39:41 +00:00
parent f346f656a1
commit a1a413a621
2 changed files with 4 additions and 34 deletions
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30
src/emu/machine/6821pia.c
View File

@ -581,11 +581,6 @@ UINT8 pia6821_device::control_b_r()
// read
//-------------------------------------------------
READ8_MEMBER( pia6821_device::read )
{
return reg_r(offset);
}
UINT8 pia6821_device::reg_r(UINT8 offset)
{
UINT8 ret;
@ -628,16 +623,6 @@ UINT8 pia6821_device::reg_r(UINT8 offset)
}
//-------------------------------------------------
// pia6821_alt_r
//-------------------------------------------------
READ8_MEMBER( pia6821_device::read_alt )
{
return reg_r(((offset << 1) & 0x02) | ((offset >> 1) & 0x01));
}
//-------------------------------------------------
// send_to_out_a_func
@ -866,11 +851,6 @@ void pia6821_device::control_b_w(UINT8 data)
// write
//-------------------------------------------------
WRITE8_MEMBER( pia6821_device::write )
{
reg_w(offset, data);
}
void pia6821_device::reg_w(UINT8 offset, UINT8 data)
{
switch (offset & 0x03)
@ -909,16 +889,6 @@ void pia6821_device::reg_w(UINT8 offset, UINT8 data)
}
//-------------------------------------------------
// write_alt
//-------------------------------------------------
WRITE8_MEMBER( pia6821_device::write_alt )
{
reg_w(((offset << 1) & 0x02) | ((offset >> 1) & 0x01), data);
}
//-------------------------------------------------
// porta_r
//-------------------------------------------------

8
src/emu/machine/6821pia.h
View File

@ -85,10 +85,10 @@ public:
// static configuration helpers
static void static_set_interface(device_t &device, const pia6821_interface &interface);
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
DECLARE_READ8_MEMBER( read_alt );
DECLARE_WRITE8_MEMBER( write_alt );
DECLARE_READ8_MEMBER( read ) { return reg_r(offset); }
DECLARE_WRITE8_MEMBER( write ) { reg_w(offset, data); }
DECLARE_READ8_MEMBER( read_alt ) { return reg_r(((offset << 1) & 0x02) | ((offset >> 1) & 0x01)); }
DECLARE_WRITE8_MEMBER( write_alt ) { reg_w(((offset << 1) & 0x02) | ((offset >> 1) & 0x01), data); }
UINT8 port_b_z_mask() const { return ~m_ddr_b; } // see first note in .c
void set_port_a_z_mask(UINT8 data) { m_port_a_z_mask = data; }// see second note in .c