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Bring back the more heavy-weight version of the mesgin inb routines. Davidg's

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testing made me think that some of the checks were superfluous, but
wcarchive (and Amancio) know better.
This commit is contained in:
Justin T. Gibbs 1996-01-05 16:11:49 +00:00
parent 28ae0646aa
commit a27c063027
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=13251
1 changed files with 12 additions and 4 deletions
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16
sys/dev/aic7xxx/aic7xxx.seq
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@ -880,14 +880,22 @@ mk_mesg1:
*/
inb_next:
mov NONE,SCSIDATL /*dummy read from latch to ACK*/
inb_first:
call inb_last
inb_next_wait:
test SSTAT1,PHASEMIS jnz mesgin_phasemis
test SSTAT0,SPIORDY jz inb_first /* wait for next byte */
test SSTAT0,SPIORDY jz inb_next_wait /* wait for next byte */
inb_first:
mov DINDEX,SINDEX
mov DINDIR,SCSIBUSL ret /*read byte directly from bus*/
inb_last:
mov NONE,SCSIDATL ret /*dummy read from latch to ACK*/
clr STCNT2
clr STCNT1
mvi STCNT0,0x01
mov NONE,SCSIDATL /*dummy read from latch to ACK*/
inb_last_wait:
test SSTAT0,SDONE jz inb_last_wait /* Wait for completion */
ret
mesgin_phasemis: