NOTE: THIS IS AN EARLIER, BUGGY VERSION
THE ENTRY LOCATIONS WILL PROBABLY CHANGE
Code: Select all
For V1 (older) ROM, add 1 to all the listed values (19110 -> 19111)
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; USR 19110 must be always invoked at the beginning of your program, followed by CLS.
clg = 19110 Init new interrupt handler, clear screen and reset graphics pointers. (0,0) = top-left.
_zx_fast = 17384
_zx_slow = 17390
; graphics commands
_zx_setpos = 18743 x,y
_zx_plot = 17686 x,y
_zx_unplot = 17728 x,y
_zx_xorplot = 17770 x,y
_zx_draw = 17812 +/- x,y (relative coordinate)
_zx_undraw = 17872 +/- x,y (relative coordinate)
_zx_xordraw = 17932 +/- x,y (relative coordinate)
_zx_drawto = 17992 x,y
_zx_undrawto = 18034 x,y
_zx_xordrawto = 18076 x,y
_zx_circle = 18118 x,y,radius
_zx_uncircle = 18174 x,y,radius
_zx_xorcircle = 18230 x,y,radius
_zx_fill = 18286 x,y flood fill starting at the given position
_zx_clga = 18523 clear screen area: x,y,x2,y2
_zx_fillb = 18587 fill screen area x,y,x2,y2
_zx_miniprint = 18330 "text[]" ..MUST have GRAPHICS+SPACE (inverted SPACE) as string terminator
x_4x6 = 22304 x miniprint coordinate (use POKE)
y_4x6 = 22306 y miniprint coordinate (use POKE)
; text/video effects
_zx_invtxt = 18403 inverts the picture in text mode
_zx_mirrortxt = 18418 mirrors the text horizontally (font is not flipped)
_zx_filltxt = 18433 arg: the numeric code of the character used to fill the screen, e.g. CODE "A", or 8
_zx_rollchr = 18465 (not working?) tweaks the video generator to roll the text display, '0'= normal position
_zx_scrolluptxt = 18493 scroll up
_zx_scrolldowntxt = 18508 scroll down
; turtle graphics
_zx_pen_up = 18651 the next "zx_fwd" will trace a line
_zx_pen_down = 18666 the next "zx_fwd" will move without drawing
_zx_move = 18681 x,y
_zx_set_direction = 18785 clockwise progression, e.g EAST=0, SOUTH=90, WEST=180, NORTH=270
_zx_fwd = 18813 make your turtle walk, n steps
_zx_turn_left = 18841 arg: degrees
_zx_turn_right = 18869 arg: degrees
; picture blitting (possibly not working yet)
_zx_putsprite = 18897 x,y,sprite data: e.g. CHR$ 8 + CHR$ 8 + "AAAAAAAA"
_zx_andsprite = 18950
_zx_xorsprite = 19004
_zx_getsprite = 19057 x,y,sprite data. The sprite data must be pre-initialized with expected size and a default content.