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[mess] add altstatus reset to atapi cd (nw)

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cracyc 2013-03-01 15:41:41 +00:00
parent debffdc7bb
commit 97e41cb573
1 changed files with 11 additions and 0 deletions
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11
src/mess/machine/isa_ide_cd.c
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@ -19,7 +19,18 @@ static void atapi_irq(device_t *device, int state)
WRITE16_MEMBER( isa16_ide_cd_device::atapi_cmd_w )
{
if(data & 4) // ide reset
{
m_atapi_regs[ATAPI_REG_CMDSTATUS] = 0x00;
m_atapi_regs[ATAPI_REG_ERRFEAT] = 0x01;
m_atapi_regs[ATAPI_REG_INTREASON] = 0x01; // SECTOR_COUNT
m_atapi_regs[ATAPI_REG_SAMTAG] = 0x01; // SECTOR_NUMBER
m_atapi_regs[ATAPI_REG_COUNTLOW] = 0x14; // CYLINDER_LSB
m_atapi_regs[ATAPI_REG_COUNTHIGH] = 0xeb; // CYLINDER_MSB
m_atapi_regs[ATAPI_REG_DRIVESEL] = 0xA0; // HEAD_NUMBER
}
}
READ16_MEMBER( isa16_ide_cd_device::atapi_status_r )
{
UINT8 *atapi_regs = m_atapi_regs;