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(MESS) p8000, p8000_16, bigbord2: fix regression in keyboard due to 'address_space' problem.

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This commit is contained in:
Robbbert 2012-09-19 10:51:16 +00:00
parent 3c58f8e7cd
commit 9d9ffac2cd
2 changed files with 12 additions and 8 deletions
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8
src/mess/drivers/bigbord2.c
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@ -175,22 +175,24 @@ READ8_MEMBER( bigbord2_state::portd0_r )
WRITE8_MEMBER( bigbord2_state::bigbord2_kbd_put )
{
address_space &mem = *m_maincpu->space(AS_PROGRAM);
if (data)
{
m_term_data = data;
m_term_status = 8;
m_ctca->trg0(0);
m_ctca->trg0(1);
if (space.read_byte(0xf13d) == 0x4d)
if (mem.read_byte(0xf13d) == 0x4d)
{
// simulate interrupt by saving current pc on
// the stack and jumping to interrupt handler.
UINT16 spreg = m_maincpu->state_int(Z80_SP);
UINT16 pcreg = m_maincpu->state_int(Z80_PC);
spreg--;
space.write_byte(spreg, pcreg >> 8);
mem.write_byte(spreg, pcreg >> 8);
spreg--;
space.write_byte(spreg, pcreg);
mem.write_byte(spreg, pcreg);
m_maincpu->set_state_int(Z80_SP, spreg);
m_maincpu->set_state_int(Z80_PC, 0xF120);
}

12
src/mess/drivers/p8k.c
View File

@ -175,6 +175,7 @@ WRITE8_MEMBER( p8k_state::p8k_port24_w )
WRITE8_MEMBER( p8k_state::kbd_put )
{
address_space &mem = *m_maincpu->space(AS_PROGRAM);
m_term_data = data;
// This is a dreadful hack..
// simulate interrupt by saving current pc on
@ -182,9 +183,9 @@ WRITE8_MEMBER( p8k_state::kbd_put )
UINT16 spreg = m_maincpu->state_int(Z80_SP);
UINT16 pcreg = m_maincpu->state_int(Z80_PC);
spreg--;
space.write_byte(spreg, pcreg >> 8);
mem.write_byte(spreg, pcreg >> 8);
spreg--;
space.write_byte(spreg, pcreg);
mem.write_byte(spreg, pcreg);
m_maincpu->set_state_int(Z80_SP, spreg);
m_maincpu->set_state_int(Z80_PC, 0x078A);
}
@ -438,13 +439,14 @@ DRIVER_INIT_MEMBER(p8k_state,p8k)
WRITE8_MEMBER( p8k_state::kbd_put_16 )
{
address_space &mem = *m_maincpu->space(AS_PROGRAM);
// keyboard int handler is at 0x0700
m_term_data = data;
// This is another dire hack..
UINT8 offs = space.read_byte(0x43a5);
UINT8 offs = mem.read_byte(0x43a5);
UINT16 addr = 0x41b0 + (UINT16) offs;
space.write_byte(addr, data);
space.write_byte(0x43a0, 1);
mem.write_byte(addr, data);
mem.write_byte(0x43a0, 1);
}
static GENERIC_TERMINAL_INTERFACE( terminal_intf_16 )