* QDOS SCREEN TRAPS
         NOLIST
SD.EXTOP EQU      $09               external operation (A3)
SD.PXENQ EQU      $0A               pixel based size / position enquiry
SD.CHENQ EQU      $0B               character based size / position enquiry
SD.BORDR EQU      $0C               define window border
SD.WDEF  EQU      $0D               define window
SD.CURE  EQU      $0E               enable cursor
SD.CURS  EQU      $0F               suppress cursor
SD.POS   EQU      $10               absolute position
SD.TAB   EQU      $11               tab (horizontal position)
SD.NL    EQU      $12               newline
SD.PCOL  EQU      $13               previous column
SD.NCOL  EQU      $14               next column
SD.PROW  EQU      $15               previous row
SD.NROW  EQU      $16               next row
SD.PIXP  EQU      $17               set pixel position
SD.SCROL EQU      $18               scroll whole window
SD.SCRTP EQU      $19               scroll top of window
SD.SCRBT EQU      $1A               scroll bottom of window
SD.PAN   EQU      $1B               pan window
*
SD.PANLN EQU      $1E               pan cursor line
SD.PANRT EQU      $1F               pan RHS of cursor line
SD.CLEAR EQU      $20               clear whole window
SD.CLRTP EQU      $21               clear top of window
SD.CLRBT EQU      $22               clear bottom of window
SD.CLRLN EQU      $23               clear cursor line
SD.CLRRT EQU      $24               clear to right of cursor
SD.FOUNT EQU      $25               set fount addresses
SD.RECOL EQU      $26               recolour a window
SD.SETPA EQU      $27               set paper colour
SD.SETST EQU      $28               set strip colour
SD.SETIN EQU      $29               set ink colour
SD.SETFL EQU      $2A               set flash on/off
SD.SETUL EQU      $2B               set underline on/off
SD.SETMD EQU      $2C               set write mode
SD.SETSZ EQU      $2D               set character size
SD.FILL  EQU      $2E               fill block
SD.DONL  EQU      $2F               do pending newline
SD.POINT EQU      $30               set point in window
SD.LINE  EQU      $31               draw line
SD.ARC   EQU      $32               draw arc
SD.ELIPS EQU      $33               draw ellipse
SD.SCALE EQU      $34               set graphics scale
SD.FLOOD EQU      $35               set fill mode/vectors
SD.GCUR  EQU      $36               set text cursor using graphics coords
         LIST