ShuriZma
/
xemu
mirror of https://github.com/xemu-project/xemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ide select logic fix 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@717 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-04-07 22:13:51 +00:00
parent 41b9be476c
commit 7ae9862745
1 changed files with 19 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
hw/ide.c
View File

@ -1078,8 +1078,8 @@ static void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
ide_if[1].hcyl = val;
break;
case 6:
ide_if[0].select = val & 0x4f;
ide_if[1].select = val & 0x4f;
ide_if[0].select = (val & ~0x10) | 0xa0;
ide_if[1].select = (val | 0x10) | 0xa0;
/* select drive */
unit = (val >> 4) & 1;
s = ide_if + unit;
@ -1210,7 +1210,8 @@ static void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
static uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
{
IDEState *s = ((IDEState *)opaque)->cur_drive;
IDEState *ide_if = opaque;
IDEState *s = ide_if->cur_drive;
uint32_t addr;
int ret;
@ -1220,44 +1221,44 @@ static uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
ret = 0xff;
break;
case 1:
if (!s->bs)
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else
ret = s->error;
break;
case 2:
if (!s->bs)
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else
ret = s->nsector & 0xff;
break;
case 3:
if (!s->bs)
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else
ret = s->sector;
break;
case 4:
if (!s->bs)
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else
ret = s->lcyl;
break;
case 5:
if (!s->bs)
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else
ret = s->hcyl;
break;
case 6:
if (!s->bs)
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else
ret = s->select | 0xa0;
ret = s->select;
break;
default:
case 7:
if (!s->bs)
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else
ret = s->status;
@ -1272,9 +1273,14 @@ static uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
static uint32_t ide_status_read(void *opaque, uint32_t addr)
{
IDEState *s = ((IDEState *)opaque)->cur_drive;
IDEState *ide_if = opaque;
IDEState *s = ide_if->cur_drive;
int ret;
ret = s->status;
if (!ide_if[0].bs && !ide_if[1].bs)
ret = 0;
else
ret = s->status;
#ifdef DEBUG_IDE
printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
#endif