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Implemented IDE seek commands from 0x71 to 0x7F (they behave identically to 0x70, per the specification).

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This commit is contained in:
OBattler
2018-02-25 22:01:56 +01:00
parent f00a5b1d70
commit 9479b28f9c
1 changed files with 49 additions and 3 deletions
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52
src/disk/hdc_ide.c
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@@ -9,7 +9,7 @@
* Implementation of the IDE emulation for hard disks and ATAPI
* CD-ROM devices.
*
* Version: @(#)hdc_ide.c 1.0.26 2018/02/14
* Version: @(#)hdc_ide.c 1.0.27 2018/02/25
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
@@ -1137,6 +1137,33 @@ void writeide(int ide_board, uint16_t addr, uint8_t val)
{
cdrom[atapi_cdrom_drives[ide->channel]].error = 0;
}
if (val >= WIN_SEEK) && (val <= 0x7F)
{
if (ide_drive_is_zip(ide))
{
zip[atapi_zip_drives[ide->channel]].status = READY_STAT;
}
else if (ide_drive_is_cdrom(ide))
{
cdrom[atapi_cdrom_drives[ide->channel]].status = READY_STAT;
}
else
{
ide->atastat = READY_STAT;
}
timer_process();
if (ide_drive_is_zip(ide))
{
zip[atapi_zip_drives[ide->channel]].callback = 100LL*IDE_TIME;
}
if (ide_drive_is_cdrom(ide))
{
cdrom[atapi_cdrom_drives[ide->channel]].callback = 100LL*IDE_TIME;
}
idecallback[ide_board]=100LL*IDE_TIME;
timer_update_outstanding();
return;
}
switch (val)
{
case WIN_SRST: /* ATAPI Device Reset */
@@ -1166,7 +1193,6 @@ void writeide(int ide_board, uint16_t addr, uint8_t val)
return;
case WIN_RESTORE:
case WIN_SEEK:
if (ide_drive_is_zip(ide))
{
zip[atapi_zip_drives[ide->channel]].status = READY_STAT;
@@ -1888,6 +1914,27 @@ void callbackide(int ide_board)
zip_id = atapi_zip_drives[cur_ide[ide_board]];
zip_id_other = atapi_zip_drives[cur_ide[ide_board] ^ 1];
if ((ide->command >= WIN_SEEK) && (ide->command <= 0x7F))
{
if (ide_drive_is_zip(ide) || ide_drive_is_cdrom(ide))
{
goto abort_cmd;
}
if (ide_drive_is_zip(ide))
{
zip[zip_id].status = READY_STAT | DSC_STAT;
}
else if (ide_drive_is_cdrom(ide))
{
cdrom[cdrom_id].status = READY_STAT | DSC_STAT;
}
else
{
ide->atastat = READY_STAT | DSC_STAT;
}
ide_irq_raise(ide);
return;
}
switch (ide->command)
{
/* Initialize the Task File Registers as follows: Status = 00h, Error = 01h, Sector Count = 01h, Sector Number = 01h,
@@ -1920,7 +1967,6 @@ void callbackide(int ide_board)
return;
case WIN_RESTORE:
case WIN_SEEK:
if (ide_drive_is_zip(ide) || ide_drive_is_cdrom(ide))
{
goto abort_cmd;