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Added FDC irq

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This commit is contained in:
Angelo Salese 2011-12-25 03:32:56 +00:00
parent b5a9ef9104
commit c71d31cc90
1 changed files with 5 additions and 9 deletions
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14
src/mame/drivers/pcxt.c
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@ -78,7 +78,6 @@ public:
: driver_device(mconfig, type, tag) { }
UINT8 *m_vga_vram;
UINT8 *m_work_ram;
UINT8 m_video_regs[0x19];
UINT8 *m_vga_mode;
UINT8 m_hv_blank;
@ -92,7 +91,6 @@ public:
UINT8 m_wss2_data;
UINT8 m_status;
UINT8 m_clr_status;
UINT8 m_drive_data;
int m_dma_channel;
UINT8 m_dma_offset[2][4];
UINT8 m_at_pages[0x10];
@ -571,10 +569,10 @@ static WRITE8_HANDLER( fdc765_data_w )
static WRITE8_HANDLER( drive_selection_w )
{
pcxt_state *state = space->machine().driver_data<pcxt_state>();
state->m_drive_data = data;
/*write to this area then expects that location [43e] has the bit 7 activated*/
state->m_work_ram[0x3e] = 0x80;
// pcxt_state *state = space->machine().driver_data<pcxt_state>();
/* TODO: properly hook-up upd765 FDC there */
pic8259_ir6_w(space->machine().device("pic8259_1"), 1);
}
/******************
@ -715,9 +713,7 @@ static IRQ_CALLBACK(irq_callback)
}
static ADDRESS_MAP_START( filetto_map, AS_PROGRAM, 8 )
AM_RANGE(0x00000, 0x003ff) AM_RAM //irq vectors
AM_RANGE(0x00400, 0x007ff) AM_RAM AM_BASE_MEMBER(pcxt_state, m_work_ram)
AM_RANGE(0x00800, 0x9ffff) AM_RAM //work RAM 640KB
AM_RANGE(0x00000, 0x9ffff) AM_RAM //work RAM 640KB
AM_RANGE(0xa0000, 0xbffff) AM_RAM_WRITE(vga_vram_w) AM_BASE_MEMBER(pcxt_state, m_vga_vram)//VGA RAM
AM_RANGE(0xc0000, 0xcffff) AM_ROMBANK("bank1")
AM_RANGE(0xf0000, 0xfffff) AM_ROM