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authorRangi <remy.oukaour+rangi42@gmail.com>2020-09-12 13:36:53 -0400
committerRangi <remy.oukaour+rangi42@gmail.com>2020-09-12 13:36:53 -0400
commit4ffbbdfa129314e39a2b9487385d5c52eac9d04d (patch)
treea417174fb0d0b0d7cbfdbb02c92aa20344fc1f7d /include
parentdf67e27500c2149bca5f444dbe278d734a6ba17d (diff)
Port const macros from pokecrystal, and add const_dw for jumptables
Diffstat (limited to 'include')
-rw-r--r--include/macros.inc54
1 files changed, 54 insertions, 0 deletions
diff --git a/include/macros.inc b/include/macros.inc
index 85272c4..86c3fb3 100644
--- a/include/macros.inc
+++ b/include/macros.inc
@@ -22,9 +22,63 @@ farjp: macro
jp _farjp
endm
+
+lb: macro
+ ld \1, ((\2) & $ff) << 8 | ((\3) & $ff)
+endm
+
+ln: macro
+ ld \1, ((\2) & $f) << 4 | ((\3) & $f)
+endm
+
ld16: macro
ld a, LOW(\2)
ld [\1 + 0], a
ld a, HIGH(\2)
ld [\1 + 1], a
endm
+
+
+const_def: macro
+if _NARG >= 1
+const_value = \1
+else
+const_value = 0
+endc
+if _NARG >= 2
+const_inc = \2
+else
+const_inc = 1
+endc
+endm
+
+const: macro
+\1 EQU const_value
+const_value = const_value + const_inc
+endm
+
+shift_const: macro
+\1 EQU (1 << const_value)
+const_value = const_value + const_inc
+endm
+
+const_skip: macro
+if _NARG >= 1
+const_value = const_value + const_inc * (\1)
+else
+const_value = const_value + const_inc
+endc
+endm
+
+const_next: macro
+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
+const_value = \1
+endc
+endm
+
+const_dw: macro
+ const \1
+ dw \2
+endm