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(mess) c128: Fixed MMU. (nw)

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This commit is contained in:
Curt Coder 2012-10-11 16:45:30 +00:00
parent 801c00b931
commit 9afbd50a08
2 changed files with 25 additions and 13 deletions
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20
src/mess/machine/mos8722.c
View File

@ -168,6 +168,9 @@ void mos8722_device::device_reset()
m_p0l_written = false;
m_p1l_written = false;
m_out_z80en_func(MCR_8500);
m_out_fsdir_func(MCR_FSDIR);
}
@ -220,6 +223,8 @@ WRITE8_MEMBER( mos8722_device::write )
{
if (!CR_IO && offset >= 0xd500 && offset < 0xd50c)
{
if (LOG) logerror("MOS8722 '%s' Write %01x : %02x\n", tag(), offset & 0x0f, data);
m_reg[offset & 0x0f] = data;
switch (offset & 0x0f)
@ -248,6 +253,8 @@ WRITE8_MEMBER( mos8722_device::write )
}
else if (offset >= 0xff00 && offset < 0xff05)
{
if (LOG) logerror("MOS8722 '%s' Write %01x : %02x\n", tag(), offset & 0x0f, data);
switch (offset & 0x0f)
{
case CR:
@ -279,7 +286,12 @@ READ_LINE_MEMBER( mos8722_device::fsdir_r )
offs_t mos8722_device::ta_r(offs_t offset, int aec, int *ms0, int *ms1, int *ms2, int *ms3, int *cas0, int *cas1)
{
offs_t ta = offset;
offs_t ta = offset & 0xff00;
if (!aec)
{
ta = 0xf000 | (offset & 0xf00);
}
if (!MCR_C64)
{
@ -289,7 +301,7 @@ offs_t mos8722_device::ta_r(offs_t offset, int aec, int *ms0, int *ms1, int *ms2
if (offset < 0x1000 && !MCR_8500)
{
ta = 0xd000 | (offset & 0xfff);
ta = 0xd000 | (offset & 0xf00);
*ms0 = 0;
*ms1 = 0;
@ -321,7 +333,7 @@ offs_t mos8722_device::ta_r(offs_t offset, int aec, int *ms0, int *ms1, int *ms2
{
if (m_p0l_written && m_reg[P0L])
{
ta = (m_reg[P0L] << 8) | (offset & 0xff);
ta = m_reg[P0L] << 8;
*cas0 = P0H_A16 ? 1 : 0;
*cas1 = P0H_A16 ? 0 : 1;
@ -331,7 +343,7 @@ offs_t mos8722_device::ta_r(offs_t offset, int aec, int *ms0, int *ms1, int *ms2
{
if (m_p1l_written && m_reg[P1L])
{
ta = (m_reg[P1L] << 8) | (offset & 0xff);
ta = m_reg[P1L] << 8;
*cas0 = P1H_A16 ? 1 : 0;
*cas1 = P1H_A16 ? 0 : 1;

18
src/mess/machine/mos8722.h
View File

@ -79,21 +79,21 @@ class mos8722_device : public device_t,
public mos8722_interface
{
public:
// construction/destruction
mos8722_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// construction/destruction
mos8722_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
UINT8 read(offs_t offset, UINT8 data);
DECLARE_WRITE8_MEMBER( write );
UINT8 read(offs_t offset, UINT8 data);
DECLARE_WRITE8_MEMBER( write );
DECLARE_READ_LINE_MEMBER( fsdir_r );
DECLARE_READ_LINE_MEMBER( fsdir_r );
offs_t ta_r(offs_t offset, int aec, int *ms0, int *ms1, int *ms2, int *ms3, int *cas0, int *cas1);
offs_t ta_r(offs_t offset, int aec, int *ms0, int *ms1, int *ms2, int *ms3, int *cas0, int *cas1);
protected:
// device-level overrides
// device-level overrides
virtual void device_config_complete();
virtual void device_start();
virtual void device_reset();
virtual void device_start();
virtual void device_reset();
private:
devcb_resolved_write_line m_out_z80en_func;