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Tandy 1000: Improve keyboard HLE in basic on 1000 tx msdos floppy [smf]

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This commit is contained in:
smf- 2018-09-06 09:40:12 +01:00
parent 7abaa90cae
commit 9e3b73ded4
1 changed files with 10 additions and 1 deletions
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11
src/mame/drivers/tandy1t.cpp
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@ -138,6 +138,7 @@ private:
uint8_t m_tandy_data[8]; uint8_t m_tandy_data[8];
uint8_t m_tandy_bios_bank; /* I/O port FFEAh */ uint8_t m_tandy_bios_bank; /* I/O port FFEAh */
uint8_t m_tandy_ppi_porta, m_tandy_ppi_ack;
uint8_t m_tandy_ppi_portb, m_tandy_ppi_portc; uint8_t m_tandy_ppi_portb, m_tandy_ppi_portc;
uint8_t m_vram_bank; uint8_t m_vram_bank;
static void cfg_fdc_35(device_t *device); static void cfg_fdc_35(device_t *device);
@ -315,7 +316,10 @@ WRITE8_MEMBER( tandy1000_state::tandy1000_pio_w )
// sx enables keyboard from bit 3, others bit 6, hopefully theres no conflict // sx enables keyboard from bit 3, others bit 6, hopefully theres no conflict
m_keyboard->enable(data&0x48); m_keyboard->enable(data&0x48);
if ( data & 0x80 ) if ( data & 0x80 )
{
m_mb->m_pic8259->ir1_w(0); m_mb->m_pic8259->ir1_w(0);
m_tandy_ppi_ack = 1;
}
break; break;
case 2: case 2:
m_tandy_ppi_portc = data; m_tandy_ppi_portc = data;
@ -333,7 +337,12 @@ READ8_MEMBER(tandy1000_state::tandy1000_pio_r)
switch (offset) switch (offset)
{ {
case 0: case 0:
data = m_keyboard->read(space, 0); if (m_tandy_ppi_ack)
{
m_tandy_ppi_porta = m_keyboard->read(space, 0);
m_tandy_ppi_ack = 0;
}
data = m_tandy_ppi_porta;
break; break;
case 1: case 1:
data=m_tandy_ppi_portb; data=m_tandy_ppi_portb;