Displaying pre-generated dungeon

1 files changed, 32 insertions, 0 deletions

diff --git a/utils.gbasm b/utils.gbasm
new file mode 100644
index 0000000..2c8ef2b
--- /dev/null
+++ b/utils.gbasm
@@ -0,0 +1,32 @@
+memcpy: ; src = DE, dest = HL, n = BC
+	Load_Tile.loop0:
+		LD A, (DE)
+		LD (HL+), A
+		INC DE
+		DEC BC
+		XOR A
+		CP B
+		JR NZ =Load_Tile.loop0
+		CP C
+		JR NZ =Load_Tile.loop0
+	RET
+
+Print_8bit: ; Number in A, Memory Tilemap position in HL
+	PUSH AF
+	PUSH BC
+
+	LD C, A
+	SWAP A 				   ; We start by the highest nibble
+	AND $0f
+	OR $10
+	LD (HL+), A
+	
+	LD A, C
+	AND $0f 			   ; Then the lowest
+	OR $10
+	LD (HL+), A
+
+	POP BC
+	POP AF
+	RET
+