if !def(_defines_inc_)
_defines_inc_ equ 0

bits: macro
; Defines a _f constant and a mask constant for one
;  or multiple bits in a byte.

if _NARG < 2
\1_f rb 1
\1 equ 1 << \1_f
else
\1_f rb \2
x = 0
rept \2
x = x << 1 | 1
endr
\1 equ x << \1_f
endc
endm

enum: macro
\1 rb 1
endm

; h_console
rsreset
    enum console_dmg
    enum console_mgb
    enum console_cgb
    enum console_agb

; h_joypad
rsreset
    bits joy_a
    bits joy_b
    bits joy_select
    bits joy_start
    bits joy_right
    bits joy_left
    bits joy_up
    bits joy_down
joy_buttons equ joy_a | joy_b | joy_select | joy_start
joy_dpad equ joy_right | joy_left | joy_up | joy_down

endc