Texas Instruments TI-83 Plus Manual page 92

82
setTofull:
;
;
;
;
rstrYOffset:
Change the split screen mode to full screen mode without restoring it back to the
input setting.
Note: The B_CALL routine was not used in the first option above so that the graph would not be
marked dirty. If the split screen mode is not temporarily changed, the graph needs to be
marked as dirty so it will reflect the new screen size. Example one restores the input setting,
so no regraph is necessary. It is entirely up to the application if causing the regraph is a
concern or not.
TI-83 Plus Developer Guide
LD HL,YOffset
LD DE,savevals
LD BC,5
LDIR
LD A,(IY+sGrFlags)
LD (DE),A
RES grfSplit,(IY+sGrFlags)
RES vertSplit,(IY+sGrFlags)
B_CALL SetNorm_Vals
SET grfSplitOverride,(IY+sGrFlags)
RET
RES grfSplitOverride,(IY+sGrFlags)
LD DE,YOffset
LD HL,savevals
LD BC,5
LDIR
LD A,(HL)
LD (IY+sGrFlags),A
RET
B_CALL ForceFullScreen
Chapter 2: TI-83 Plus Specific Information
; address of split
; attributes
; app defined RAM
; location to save
; save first 5 bytes
; save split
; attributes
; split flags ->
; ACC
; save split flags
th
; in 6 byte
; set flags to
; Full screen
; screen attributes
; to full
; restore input
; screen attributes
; get input split
; flags
; restore
Third Release May 28, 2002