;;; ------------------------------
;;; A2Desktop
;;; ------------------------------

;;; Entry Points
A2D             := $4000
UNKNOWN_CALL    := $8E00

A2D_TEXT        := $19          ; { .addr data, .byte len }
A2D_GET_BUTTON  := $2A          ; { .byte state (0=up, 1=down?, 2=released?) }
A2D_GET_MOUSE   := $40          ; { .word x, .word y, ????...}
A2D_BTN_CLICK   := $43          ; { .byte clicked (0=cancelled, 1=clicked), .byte ??, byte ?? }

;;; Macros
.macro  A2D_CALL    op, addr
        jsr A2D
        .byte op
        .addr addr
.endmacro

.macro A2D_DEFSTRING str        ; String definition, for use with A2D_TEXT
        .local  data
        .addr   data
        .byte   .strlen(str)
data:   .byte   str
.endmacro