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Make ITS check whether the Type 340 display is up and running.

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Now that ITS will honor the DSDP switch, it might not check the CONI
DIS bit 0 to see if the 340 is available.  This leads to a situation
where the display could be turned off but ITS thinks it's always
online and will try to use it.

This commit adds a check writing some CONO bits and read them back
with CONI.
This commit is contained in:
Lars Brinkhoff 2021-07-23 09:12:16 +02:00
parent 23f0a64b1c
commit 35b59c63e8
1 changed files with 4 additions and 1 deletions
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5
src/system/itsdev.976 → src/system/itsdev.977
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@ -2650,7 +2650,10 @@ ADSDV: ;A HAS NEW 340MD
CONO DIS,0
CONI DIS,T
JUMPE T,ADSDVN ;DIS NOT AVAIABLE
ADSDV1: SKIPL T,DISUSR
ADSDV1: CONO DIS,DISCHN
CONSO DIS,7
JRST ADSDVN ;DIS NOT RUNNING
SKIPL T,DISUSR
CAMN U,DISUSR
JRST ADSDVY ;YES
CAME U,UMASTER