Add call macro, *_p subroutine naming convention

1 files changed, 10 insertions, 0 deletions

diff --git a/atk16_asm/asm_ops.py b/atk16_asm/asm_ops.py
index 65cf0da..1da8cf0 100644
--- a/atk16_asm/asm_ops.py
+++ b/atk16_asm/asm_ops.py
@@ -346,6 +346,16 @@ def expand_calli(addr_imm: int | str) -> ExpandResult:
   ]
 
 @register_macro
+def expand_call(label: str, clobber_r = "RF") -> ExpandResult:
+  """Convenience wrapper for ldi + ldr + callr, clobbers RF by default."""
+  pointer_label = f"{label}_p"
+  return [
+    ["ldi", pointer_label, clobber_r],
+    ["ldr", clobber_r, clobber_r],
+    *expand_callr(clobber_r),
+  ]
+
+@register_macro
 def expand_return() -> ExpandResult:
   return [
     ["str", "RG", "SP"], # store returned value on stack but don't increment SP