From: notaz <notasas@gmail.com>
Date: Wed, 9 Apr 2008 20:30:57 +0000 (+0000)
Subject: bugfixes for Cyclone r9 change
X-Git-Tag: v1.85~514
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8527dc450a96f7a292b7f302e8e55147628b6042;p=picodrive.git

bugfixes for Cyclone r9 change

git-svn-id: file:///home/notaz/opt/svn/PicoDrive@418 be3aeb3a-fb24-0410-a615-afba39da0efa
---

diff --git a/cpu/Cyclone/OpBranch.cpp b/cpu/Cyclone/OpBranch.cpp
index 0a2b3ec..ce5ae70 100644
--- a/cpu/Cyclone/OpBranch.cpp
+++ b/cpu/Cyclone/OpBranch.cpp
@@ -47,7 +47,7 @@ static void PopSr(int high)
   OpRegToFlags(high);
 }
 
-// Pop PC - assumes r11=Memory Base - trashes r0-r3
+// Pop PC - trashes r0-r3
 static void PopPc()
 {
   ot(";@ Pop PC:\n");
@@ -55,7 +55,8 @@ static void PopPc()
   ot("  add r1,r0,#4 ;@ Postincrement A7\n");
   ot("  str r1,[r7,#0x3c] ;@ Save A7\n");
   MemHandler(0,2);
-  ot("  add r0,r0,r11 ;@ Memory Base+PC\n");
+  ot("  ldr r1,[r7,#0x60] ;@ Get Memory base\n");
+  ot("  add r0,r0,r1 ;@ Memory Base+PC\n");
   ot("\n");
   CheckPc();
 #if EMULATE_ADDRESS_ERRORS_JUMP
@@ -175,7 +176,6 @@ int Op4E70(int op)
     case 3: // rte
     OpStart(op,0x10,0,0,1); Cycles=20;
     PopSr(1);
-    ot("  ldr r11,[r7,#0x60] ;@ Get Memory base\n");
     PopPc();
     ot("  ldr r1,[r7,#0x44] ;@ reload SR high\n");
     SuperChange(op,1);
@@ -195,7 +195,6 @@ int Op4E70(int op)
 
     case 5: // rts
     OpStart(op,0x10); Cycles=16;
-    ot("  ldr r11,[r7,#0x60] ;@ Get Memory base\n");
     PopPc();
 #if EMULATE_ADDRESS_ERRORS_JUMP
     ot("  tst r4,#1 ;@ address error?\n");
@@ -217,7 +216,6 @@ int Op4E70(int op)
     case 7: // rtr
     OpStart(op,0x10); Cycles=20;
     PopSr(0);
-    ot("  ldr r11,[r7,#0x60] ;@ Get Memory base\n");
     PopPc();
 #if EMULATE_ADDRESS_ERRORS_JUMP
     ot("  tst r4,#1 ;@ address error?\n");
diff --git a/cpu/Cyclone/OpLogic.cpp b/cpu/Cyclone/OpLogic.cpp
index d32d34e..912d94b 100644
--- a/cpu/Cyclone/OpLogic.cpp
+++ b/cpu/Cyclone/OpLogic.cpp
@@ -40,7 +40,7 @@ int OpBtstReg(int op)
 
   EaCalcReadNoSE((type>0)?8:-1,0,tea,size,0x003f);
 
-  if (tea>=0x11)
+  if (tea>=0x10)
        ot("  and r11,r11,#7  ;@ mem - do mod 8\n");  // size always 0
   else ot("  and r11,r11,#31 ;@ reg - do mod 32\n"); // size always 2
   ot("\n");
@@ -94,7 +94,7 @@ int OpBtstImm(int op)
   EaCalcReadNoSE(-1,0,sea,0,0);
   ot("  mov r11,#1\n");
   ot("  bic r10,r10,#0x40000000 ;@ Blank Z flag\n");
-  if (tea>=0x11)
+  if (tea>=0x10)
        ot("  and r0,r0,#7    ;@ mem - do mod 8\n");  // size always 0
   else ot("  and r0,r0,#0x1F ;@ reg - do mod 32\n"); // size always 2
   ot("  mov r11,r11,lsl r0 ;@ Make bit mask\n");
diff --git a/cpu/Cyclone/OpMove.cpp b/cpu/Cyclone/OpMove.cpp
index ac2abea..be91b18 100644
--- a/cpu/Cyclone/OpMove.cpp
+++ b/cpu/Cyclone/OpMove.cpp
@@ -376,23 +376,20 @@ int OpMovem(int op)
 
   OpStart(op,ea,0,1);
 
+  ot("  ldrh r11,[r4],#2 ;@ r11=register mask\n");
+  ot("\n");
+  ot(";@ Get the address into r6:\n");
+  EaCalc(6,0x003f,cea,size);
+
 #if !MEMHANDLERS_NEED_PREV_PC
   // must save PC, need a spare register
   ot("  str r4,[r7,#0x40] ;@ Save PC\n");
 #endif
-#if !MEMHANDLERS_NEED_CYCLES
-  ot("  str r5,[r7,#0x5c] ;@ Save Cycles\n");
-#endif
-  ot("  ldrh r11,[r4],#2 ;@ r11=register mask\n");
 
   ot(";@ r4=Register Index*4:\n");
   if (decr) ot("  mov r4,#0x40 ;@ order reversed for -(An)\n");
   else      ot("  mov r4,#-4\n");
   
-  ot("\n");
-  ot(";@ Get the address into r6:\n");
-  EaCalc(6,0x003f,cea,size);
-
   ot("\n");
   ot("  tst r11,r11\n");        // sanity check
   ot("  beq NoRegs%.4x\n",op);