From 82f6bf4467d182a33e89889a0278a9c8c586ed4d Mon Sep 17 00:00:00 2001
From: Ted Fried <54004369+MicroCoreLabs@users.noreply.github.com>
Date: Thu, 13 Nov 2025 11:04:01 -0800
Subject: [PATCH] Uploaded_11_13_2025

---
 MCL86+/Code/MCL86_Plus.ino                |  8 ++++----
 MCLV20_Max/Code/MCLV20_Max/MCLV20_Max.ino | 13 +++----------
 2 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/MCL86+/Code/MCL86_Plus.ino b/MCL86+/Code/MCL86_Plus.ino
index 131598d..8444949 100644
--- a/MCL86+/Code/MCL86_Plus.ino
+++ b/MCL86+/Code/MCL86_Plus.ino
@@ -2304,7 +2304,7 @@ void opcode_0xF6()  {
                   else  {
                       signed_local_quo = (int16_t)register_ax / signed_local_divr;
                       signed_local_rem = (int16_t)register_ax % signed_local_divr;
-                      if (signed_local_quo> 0xFF) { DIV0_Handler(); }
+                      if ( (signed_local_quo<-128)||(signed_local_quo>127)) { DIV0_Handler(); }
                       register_ax = signed_local_rem << 8;
                       Write_Register(REG_AL , signed_local_quo);
                   }
@@ -2369,12 +2369,12 @@ void opcode_0xF7()  {
                   signed_local_divr=(int16_t)Fetch_EA();
                   if (signed_local_divr==0) DIV0_Handler();
                   else  {
-                      local_overflow_test = signed_local_numr / signed_local_divr; 
+                      local_overflow_test2 = signed_local_numr / signed_local_divr; 
+                      if ( (local_overflow_test2<-32768)||(local_overflow_test2>32767) ) { DIV0_Handler(); }
                       register_ax = signed_local_numr / signed_local_divr;
                       register_dx = signed_local_numr % signed_local_divr;
-                      if (local_overflow_test> 0xFFFF) { DIV0_Handler(); }
                   }
-                  break;                  
+                  break;                   
     }
     return;
 }
diff --git a/MCLV20_Max/Code/MCLV20_Max/MCLV20_Max.ino b/MCLV20_Max/Code/MCLV20_Max/MCLV20_Max.ino
index 62e302d..1d35ce8 100644
--- a/MCLV20_Max/Code/MCLV20_Max/MCLV20_Max.ino
+++ b/MCLV20_Max/Code/MCLV20_Max/MCLV20_Max.ino
@@ -2696,9 +2696,7 @@ void opcode_0xF6()  {
                   else  {
                       signed_local_quo = (int16_t)register_ax / signed_local_divr;
                       signed_local_rem = (int16_t)register_ax % signed_local_divr;
-                  if ( (signed_local_divr>0) && (signed_local_divr>0x7F) )      {DIV0_Handler(); }
-                  if ( (signed_local_divr<0) && (signed_local_divr<(0x7F-1) ))  {DIV0_Handler(); }                      
-
+                      if ( (signed_local_quo<-128)||(signed_local_quo>127)) { DIV0_Handler(); }
                       register_ax = signed_local_rem << 8;
                       Write_Register(REG_AL , signed_local_quo);
                   }
@@ -2762,17 +2760,12 @@ void opcode_0xF7()  {
                   }
                   break;       
         case 0x7: if (ea_is_a_register==1) clock_counter=clock_counter+175;  else  clock_counter=clock_counter+181;            // # 0xF7 REG[7] - IDIV  REG16/MEM16
-
                   signed_local_numr = (int32_t)(register_dx<<16) | (int32_t)register_ax;
                   signed_local_divr=(int16_t)Fetch_EA();
                   if (signed_local_divr==0) DIV0_Handler();
                   else  {
-                      local_overflow_test = signed_local_numr / signed_local_divr;
-                      //if (local_overflow_test> 0xFFFF) { DIV0_Handler(); }
-
-                  if ( (signed_local_divr>0) && (signed_local_divr>0x7FFF) )      { DIV0_Handler(); }
-                  if ( (signed_local_divr<0) && (signed_local_divr<(0x7FFF-1) ))  { DIV0_Handler(); }   
-
+                      local_overflow_test2 = signed_local_numr / signed_local_divr; 
+                      if ( (local_overflow_test2<-32768)||(local_overflow_test2>32767) ) { DIV0_Handler(); }
                       register_ax = signed_local_numr / signed_local_divr;
                       register_dx = signed_local_numr % signed_local_divr;
                   }