aboutsummaryrefslogtreecommitdiffstats
path: root/macros/const.asm
blob: d6a34672a14602dc45b3555470731085c64b617e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
; Enumerate constants

MACRO? const_def
	IF _NARG >= 1
		DEF const_value = \1
	ELSE
		DEF const_value = 0
	ENDC
	IF _NARG >= 2
		DEF const_inc = \2
	ELSE
		DEF const_inc = 1
	ENDC
ENDM

MACRO? const
	DEF \1 EQU const_value
	DEF const_value += const_inc
ENDM

MACRO? const_export
	const \1
	EXPORT \1
ENDM

MACRO? shift_const
	DEF \1 EQU 1 << const_value
	DEF const_value += const_inc
ENDM

MACRO? const_skip
	if _NARG >= 1
		DEF const_value += const_inc * (\1)
	else
		DEF const_value += const_inc
	endc
ENDM

MACRO? const_next
	if (const_value > 0 && \1 < const_value) || (const_value < 0 && \1 > const_value)
		fail "const_next cannot go backwards from {const_value} to \1"
	else
		DEF const_value = \1
	endc
ENDM

MACRO? dw_const
	dw \1
	const \2
ENDM

MACRO? rb_skip
	IF _NARG == 1
		rsset _RS + \1
	ELSE
		rsset _RS + 1
	ENDC
ENDM