[FUNC @FLOOR [[PARAM !v [FLOAT]] [RETURNS [INT]]] [
  [RETURN [TOI [- !v [% !v 1.0]]]]
]]

[FUNC @CEIL [[PARAM !v [FLOAT]] [RETURNS [INT]]] [
  [RETURN [TOI [- !v [- 1.0 [% !v 1.0]]]]]
]]

[FUNC @ROUND [[PARAM !v [FLOAT]] [RETURNS [INT]]] [
  [IF [> !v 0.0] [RETURN [@FLOOR [+ !v 0.5]]] [RETURN [@CEIL [- !v 0.5]]]]
]]

[FUNC @FABS [[PARAM !v [FLOAT]] [RETURNS [FLOAT]]] [
  [IF [< !v 0.0] [RETURN [- 0.0 !v]] [RETURN !v]]
]]

[FUNC @ABS [[PARAM !v [INT]] [RETURNS [INT]]] [
  [IF [< !v 0] [RETURN [- 0 !v]] [RETURN !v]]
]]

[FUNC @TRUE [[RETURNS [BOOL]]] [[RETURN [= 0 0]]]]
[FUNC @FALSE [[RETURNS [BOOL]]] [[RETURN [= 0 1]]]]