fix: mips rate not taking into account SIE executed instructions

The instruction count must be maintained in "regs" (the host CPU) not "GUESTREGS" (the virtual SIE cpu)
The results are then tallied per CPU by timer.c which is responsible for triggering a panel refresh.

Author: ivan-w

sie.c

@@ -1058,7 +1058,7 @@ static int ARCH_DEP( run_sie )( REGS* regs )
 
                 PROCESS_TRACE( GUESTREGS, ip, sie_fetch_instruction );
                 EXECUTE_INSTRUCTION( current_opcode_table, ip, GUESTREGS );
-                GUESTREGS->instcount++;
+                regs->instcount++;
                 UPDATE_SYSBLK_INSTCOUNT( 1 );
                 SIE_PERFMON( SIE_PERF_EXEC_U );
 
@@ -1067,7 +1067,7 @@ static int ARCH_DEP( run_sie )( REGS* regs )
                     UNROLLED_EXECUTE( current_opcode_table, GUESTREGS );
                     UNROLLED_EXECUTE( current_opcode_table, GUESTREGS );
                 }
-                GUESTREGS->instcount +=  (i * 2);
+                regs->instcount +=  (i * 2);
                 UPDATE_SYSBLK_INSTCOUNT( (i * 2) );
 
                 /* Perform automatic instruction tracing if it's enabled */
@@ -1085,7 +1085,7 @@ static int ARCH_DEP( run_sie )( REGS* regs )
 
                 PROCESS_TRACE( GUESTREGS, ip, sie_fetch_instruction );
                 EXECUTE_INSTRUCTION( current_opcode_table, ip, GUESTREGS );
-                GUESTREGS->instcount++;
+                regs->instcount++;
                 UPDATE_SYSBLK_INSTCOUNT( 1 );
                 SIE_PERFMON( SIE_PERF_EXEC_U );
 
@@ -1101,7 +1101,7 @@ static int ARCH_DEP( run_sie )( REGS* regs )
 
                     UNROLLED_EXECUTE( current_opcode_table, GUESTREGS );
                 }
-                GUESTREGS->instcount +=  (i * 2);
+                regs->instcount +=  (i * 2);
                 UPDATE_SYSBLK_INSTCOUNT( (i * 2) );
 
                 /* Perform automatic instruction tracing if it's enabled */
@@ -1112,7 +1112,7 @@ static int ARCH_DEP( run_sie )( REGS* regs )
 
                 PROCESS_TRACE( GUESTREGS, ip, sie_fetch_instruction );
                 TXF_EXECUTE_INSTRUCTION( current_opcode_table, ip, GUESTREGS );
-                GUESTREGS->instcount++;
+                regs->instcount++;
                 UPDATE_SYSBLK_INSTCOUNT( 1 );
                 SIE_PERFMON( SIE_PERF_EXEC_U );
 
@@ -1128,7 +1128,7 @@ static int ARCH_DEP( run_sie )( REGS* regs )
 
                     TXF_UNROLLED_EXECUTE( current_opcode_table, GUESTREGS );
                 }
-                GUESTREGS->instcount +=  (i * 2);
+                regs->instcount +=  (i * 2);
                 UPDATE_SYSBLK_INSTCOUNT( (i * 2) );
 
                 /* Perform automatic instruction tracing if it's enabled */