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OVERLAY.CMD
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OS/2 REXX Batch file
|
1990-03-22
|
882b
|
29 lines
;
; Set-up the overlay
;
MESS "Current overlay is: "*"_OVER"*"!" ; Note state at start
MESS "Overlay being loaded!" ; Indicate action
OVERLAY "Overlay.exe" ; Load our overlay
IF FAILED ; Stop here if can't load overlay
MESS "Overlay failed"
EXIT
ENDIF
MESS "!Current overlay is:"*"_OVER"*"!" ; Note state here
;
; Invoke the overlay to find the segment addr (for the curious)
;
SCALL 3,N0 ; Rtn one parameter
STRFMT S0 "Loaded at segment: %x!" N0 ; Format rtn value
MESS S0 ; .. and display
;
; Invoke the overlay to display a string
;
S0 = "This text written through BIOS video interrupt!"
SCALL 0,S0 ; Pass one parameter
;
; Clear the overlay, and we're done
;
MESS "!Overlay being terminated!" ; Indicate action
OVERLAY CLEAR
MESS "Current overlay is:"*"_OVER"*"!" ; Note state after clear