Hello David, and/or Mervyn,
DK> .CODE
DK> SaveSS  dw  0
DK> SaveSP  dw  0
DK> SaveBP  dw  0
DK> SafeInt2Eh:
DK>    MOV     CS:[SaveSS], SS
DK>    MOV     CS:[SaveSP], SP
DK>    MOV     CS:[SaveBP], BP
DK>    INT     2Eh
DK>    CLI     ; make sure the restoration of the registers is uninterrupted
DK>    MOV     SP, CS:[SaveSP]
DK>    MOV     SS, CS:[SaveSS]
DK>    MOV     BP, CS:[SaveBP]
DK>    STI     ; registers restored, so interrupts OK
DK>    RET
 Why is it not just as important to CLI and STI when saving the registers?
Kind regards, Barry 
--- Terminate 4.00/Pro
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