1 files changed, 38 insertions, 0 deletions
diff --git a/home/print_hex.asm b/home/print_hex.asm
new file mode 100644
index 0000000..3f50467
--- /dev/null
+++ b/home/print_hex.asm
@@ -0,0 +1,38 @@
+INCLUDE "constants.asm"
+
+SECTION "Print Hexadecimal functions", ROM0[$3597]
+
+PrintHexBytes: ; 3597 (0:3597)
+.loop
+	push bc
+	call PrintHexByte
+	pop bc
+	dec c
+	jr nz, .loop
+	ret
+
+PrintHexByte:: ; 35a0 (0:35a0)
+	ld a, [de]
+	swap a
+	and $0f
+	call PrintHexDigit
+	ld [hli], a
+	ld a, [de]
+	and $0f
+	call PrintHexDigit
+	ld [hli], a
+	inc de
+	ret
+
+PrintHexDigit: ; 35b2 (0:35b2)
+	ld bc, .hexDigitTable
+	add c
+	ld c, a
+	ld a, $00
+	adc b
+	ld b, a
+	ld a, [bc]
+	ret
+
+.hexDigitTable:
+	db "０１２３４５６７８９ＡＢＣＤＥＦ"