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Modify ZAP_ALL to skip drives assigned to device-based drivers #147

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Modify ZAP_ALL to skip drives assigned to device-based drivers #147

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7 changes: 7 additions & 0 deletions source/kernel/bank2/val.mac
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Original file line number Diff line number Diff line change
Expand Up @@ -3060,6 +3060,13 @@ zap_all_loop: ld a,b ;Get logical unit number
or e
jr z,no_zap_unit ;Skip if zero (no unit)
;
push hl ;Only zap if the unit is not controlled
ld de,UD_FLAGS ;by a device-based driver
add hl,de
bit UF_DBD,(hl)
pop hl
jr nz,no_zap_unit

ld hl,UD_TIME##
add hl,de ;HL -> UD_TIME byte
ld a,(hl) ;If UD_TIME is non-zero then
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