summaryrefslogtreecommitdiff
path: root/macros/enum.asm
diff options
context:
space:
mode:
Diffstat (limited to 'macros/enum.asm')
-rw-r--r--macros/enum.asm43
1 files changed, 43 insertions, 0 deletions
diff --git a/macros/enum.asm b/macros/enum.asm
new file mode 100644
index 00000000..8fe5b534
--- /dev/null
+++ b/macros/enum.asm
@@ -0,0 +1,43 @@
+; Enumerate variables
+
+enum_start: MACRO
+if _NARG >= 1
+__enum__ = \1
+else
+__enum__ = 0
+endc
+if _NARG >= 2
+__enumdir__ = \2
+else
+__enumdir__ = 1
+endc
+ENDM
+
+enum: MACRO
+\1 EQU __enum__
+__enum__ = __enum__ + __enumdir__
+ENDM
+
+enum_set: MACRO
+__enum__ = \1
+ENDM
+
+; Enumerate constants
+
+const_def: MACRO
+if _NARG >= 1
+const_value = \1
+else
+const_value = 0
+endc
+ENDM
+
+const: MACRO
+\1 EQU const_value
+const_value = const_value + 1
+ENDM
+
+shift_const: MACRO
+\1 EQU (1 << const_value)
+const_value = const_value + 1
+ENDM