From: Lukas Krickl <lukas@krickl.dev>
Date: Mon, 2 Feb 2026 05:09:36 +0000 (+0100)
Subject: math: Added read m16 macros
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=c5e277b0ced057503414cbfcad2496540d1df5e7;p=gbrg%2F.git

math: Added read m16 macros
---

diff --git a/src/math.s b/src/math.s
index 6a612ee..3517e1e 100644
--- a/src/math.s
+++ b/src/math.s
@@ -22,6 +22,32 @@
 	ld [$1+1], c
 #endmacro
 
+
+	; reads a 16 bit register
+	; to an m16 regsiter
+	; inputs:
+	;		$1: m16_a/b
+	;	returns:
+	;		r16: 16 bit integer
+#macro m16_read_bc
+	ld a, [$1]
+	ld c, a
+	ld a, [$1+1]
+	ld b, a
+#endmacro
+#macro m16_read_de
+	ld a, [$1]
+	ld e, a
+	ld a, [$1+1]
+	ld d, a
+#endmacro
+#macro m16_read_hl
+	ld a, [$1]
+	ld l, a
+	ld a, [$1+1]
+	ld h, a
+#endmacro
+
 	; 16 bit add
 	; inputs:
 	;		m16_a/m16_b