From: Lukas Krickl <lukas@krickl.dev>
Date: Fri, 20 Jun 2025 19:26:22 +0000 (+0200)
Subject: macros: Added mul16 and div16 macros
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=4b7cd2408110814339f8b1616be4688d076ee783;p=gbrg%2F.git

macros: Added mul16 and div16 macros
---

diff --git a/src/macros.inc b/src/macros.inc
index f06eed2..fcc3fe3 100644
--- a/src/macros.inc
+++ b/src/macros.inc
@@ -67,6 +67,16 @@
   srl $1 ; / 2
   srl $1 ; / 4
   srl $1 ; / 8
+#endmacro
+
+  ; divides a regiser by 16 
+  ; inputs:
+  ;   $1: the register 
+#macro div8 
+  srl $1 ; / 2
+  srl $1 ; / 4
+  srl $1 ; / 8
+  srl $1 ; / 16
 #endmacro 
 
   ; multiplies a regiser with 8 
@@ -78,6 +88,16 @@
   sla $1 ; * 8
 #endmacro
 
+  ; multiplies a regiser with 16 
+  ; inputs:
+  ;   $1: the register 
+#macro mul16
+  sla $1 ; * 2
+  sla $1 ; * 4
+  sla $1 ; * 8
+  sla $1 ; * 16
+#endmacro
+
   ; asserts. if $1 != $2 causes a ld b, b
   ; inputs:
   ;   $1: comparison (z, nz, c, nz)