From 82f3185f9c845e40b6903c956d71b604c6220b19 Mon Sep 17 00:00:00 2001
From: pjht <terppa05@gmail.com>
Date: Wed, 23 Nov 2022 10:49:38 -0600
Subject: [PATCH] Change to 16-bit card ID register

---
 boot/boot.68k |   6 +++---
 rom.bin       | Bin 172 -> 172 bytes
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/boot/boot.68k b/boot/boot.68k
index 0c257b2..b2f664f 100644
--- a/boot/boot.68k
+++ b/boot/boot.68k
@@ -1,6 +1,6 @@
 .global _start
 _start:
-move.b #0x4, d0
+move.w #0x4, d0 | Find a storage card
 bsr.w find_first_card
 | Load the header sector for the kernel binary
 move.l #0x200, a1 | Set the destination address to 0x200
@@ -53,9 +53,9 @@ find_first_card:
   move.l #0xff0000, a0 | a0 holds the address of the current card
 ffc_loop:
   lea (0x100, a0), a0 | Move to the next card
-  move.b (0xff, a0), d1 | Load the type of the card into d1
+  move.w (0xfe, a0), d1 | Load the type of the card into d1
   beq.b ffc_done | If the type is 0 (empty slot), we have scanned all cards, so exit the loop
-  cmp.b d0, d1 | If the card is the type we want, return with the address in a0
+  cmp.w d0, d1 | If the card is the type we want, return with the address in a0
   beq.b ffc_done
   bra.b ffc_loop | Loop back and check the next card
 ffc_done:
diff --git a/rom.bin b/rom.bin
index a143b3cb3f32cd1f5e174eab9466795deee9393c..f268c43dcff5428832c7291c8ced5b38ee285233 100644
GIT binary patch
delta 103
zcmZ3(xQ0=hfq`KK5OWyVFfb;B>3I0RWB8Dmrsbi>U@%cyj`7n(D-$~-4TgW|Y?~a?
znG!zul@>4<)G#n8)iC^LU~qoP$Y7)ilojD|WME4BprpybvZ*2eg#x33XTl@DQlQCv
E0G>1)f&c&j

delta 103
zcmZ3(xQ0=hfq`KK5OWCFFfb;B>3I0RWB8Dmrsbi>ATUu{j`80_D-$~*4Tk^eY?~O;
znG!zul@>4<)G#n8)iC^LU~qoP$RMN%lojD&WME4BprpybvZ*2eg#x33XTl@DQlQCv
E0Bx`vkN^Mx