From 9dc641991f83c2f24d8631991b32390625bb2345 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@linux.intel.com>
Date: Mon, 3 Sep 2018 21:16:26 +0100
Subject: [PATCH] cpuinfo: Fix scf check logic

---
 Applications/util/cpuinfo.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/Applications/util/cpuinfo.c b/Applications/util/cpuinfo.c
index d1867d19..26fe417c 100644
--- a/Applications/util/cpuinfo.c
+++ b/Applications/util/cpuinfo.c
@@ -98,12 +98,11 @@ no_port_idwork:
         bit 3,c
         ld a, #CPU_Z80_BM1
         jr z, set_id
-        ld bc,#0xffff
+        ld bc,#0x00ff
         push bc
-        pop af
-        xor a
-        scf
-        nop
+        pop af		/* Flags is now 0xFF A is 0. Now play with XF and YF */
+        scf		/* Will give us 0 for NEC clones, 28 for Zilog */
+        nop		/* (Turbo R will also show 28) */
         push af
         pop bc
         ld a,c
-- 
2.34.1