; Break vector BRKVec = $03F0 ; Goto Dos RESTOR = $03D0 ; Soft switches ; ; write to USEROM to enable apple rom C000-CFFF USEROM = $C007 ; 80 column card switches C80ON = $C00C C80OFF = $C00D RD80COL = $C01F PG2OFF = $C054 PG2ON = $C055 RDPAGE2 = $C01C ; Text routines MIN_X = $20 MAX_X = $21 MIN_Y = $22 MAX_Y = $23 CH = $24 CV = $25 BASL = $28 TEXTTYP = $32 MEMSIZE = $73 ; Highest free RAM location HOME = $FC58 VTABZ = $FC24 COUT = $FDED ; Keyboard entries RDKEY = $FD0C CLEAR_KEY_STROBE = $C010 KEY_STROBE = $C000 ; Game controller OPEN_APPLE = $C061 CLOSED_APPLE = $C062 ;Graphics entry points, by cbmnut (applenut??) cbmnut@hushmail.com WHITE = $01 ;white for $1c, I think... COLOR = $1C ;Current plot color HGR2 = $F3D8 ;Initialize and clear hi-res page 2. HGR = $F3E2 ;Initialize and clear hi-res page 1. HCLR = $F3F2 ;Clear the current hi-res screen to black. BKGND = $F3F6 ;Clear the current hi-res screen to the ;last plotted color (from ($1C). HPOSN = $F411 ;Positions the hi-res cursor without ;plotting a point. ;Enter with (A) = Y-coordinate, and ;(Y,X) = X-coordinate. HPLOT = $F457 ;Calls HPOSN and tries to plot a dot at ;the cursor's position. If you are ;trying to plot a non-white color at ;a complementary color position, no ;dot will be plotted. HLIN = $F53A ;Draws a line from the last plotted ;point or line destination to: ;(X,A) = X-coordinate, and ;(Y) = Y-coordinate. HFIND = $F5CB ;Converts the hi-res coursor's position ;back to X- and Y-coordinates; stores ;X-coordinate at $E0,E1 and Y-coordinate ;at $E2. DRAW = $F601 ;Draws a shape. Enter with (Y,X) = the ;address of the shape table, and (A) = ;the rotation factor. Uses the current ;color. XDRAW = $F65D ;Draws a shape by inverting the existing ;color of the dots the shape draws over. ;Same entry parameters as DRAW. SETHCOL = $F6EC ;Set the hi-res color to (X), where (X) ;must be between 0 and 7.