Author: aandrejevic
Date: Mon Jun 8 15:56:19 2015
New Revision: 68079
URL: http://svn.reactos.org/svn/reactos?rev=68079&view=rev
Log:
[FAST486]
Add constants for numeric limits.
Modified:
trunk/reactos/include/reactos/libs/fast486/fast486.h
trunk/reactos/lib/fast486/opcodes.c
trunk/reactos/lib/fast486/opgroups.c
Modified: trunk/reactos/include/reactos/libs/fast486/fast486.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/libs/fast486/fast486.h?rev=68079&r1=68078&r2=68079&view=diff
==============================================================================
--- trunk/reactos/include/reactos/libs/fast486/fast486.h [iso-8859-1]
(original)
+++ trunk/reactos/include/reactos/libs/fast486/fast486.h [iso-8859-1]
Mon Jun 8 15:56:19 2015
@@ -29,6 +29,13 @@
#ifndef FASTCALL
#define FASTCALL __fastcall
#endif
+
+#define FAST486_CHAR_MIN (-128)
+#define FAST486_CHAR_MAX (127)
+#define FAST486_SHORT_MIN (-32768L)
+#define FAST486_SHORT_MAX (32767L)
+#define FAST486_LONG_MIN (-2147483648LL)
+#define FAST486_LONG_MAX (2147483647LL)
#define FAST486_NUM_GEN_REGS 8
#define FAST486_NUM_SEG_REGS 6
Modified: trunk/reactos/lib/fast486/opcodes.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fast486/opcodes.c?rev=68079&r1=68078&r2=68079&view=diff
==============================================================================
--- trunk/reactos/lib/fast486/opcodes.c [iso-8859-1] (original)
+++ trunk/reactos/lib/fast486/opcodes.c [iso-8859-1] Mon Jun 8 15:56:19 2015
@@ -3532,7 +3532,8 @@
Product = (LONGLONG)Multiplicand * (LONGLONG)Multiplier;
/* Check for carry/overflow */
- State->Flags.Cf = State->Flags.Of = ((Product < -2147483648LL) ||
(Product > 2147483647LL));
+ State->Flags.Cf = State->Flags.Of = ((Product < FAST486_LONG_MIN)
+ || (Product > FAST486_LONG_MAX));
/* Write-back the result */
Fast486WriteModrmDwordOperands(State,
@@ -3559,7 +3560,8 @@
Product = (LONG)Multiplicand * (LONG)Multiplier;
/* Check for carry/overflow */
- State->Flags.Cf = State->Flags.Of = ((Product < -32768) || (Product >
32767));
+ State->Flags.Cf = State->Flags.Of = ((Product < FAST486_SHORT_MIN)
+ || (Product > FAST486_SHORT_MAX));
/* Write-back the result */
Fast486WriteModrmWordOperands(State,
Modified: trunk/reactos/lib/fast486/opgroups.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fast486/opgroups.c?rev=68079&r1=68078&r2=68079&view=diff
==============================================================================
--- trunk/reactos/lib/fast486/opgroups.c [iso-8859-1] (original)
+++ trunk/reactos/lib/fast486/opgroups.c [iso-8859-1] Mon Jun 8
15:56:19 2015
@@ -969,7 +969,7 @@
SHORT Result = (SHORT)((CHAR)Value) *
(SHORT)((CHAR)State->GeneralRegs[FAST486_REG_EAX].LowByte);
/* Update the flags */
- State->Flags.Cf = State->Flags.Of = ((Result < -128) || (Result >
127));
+ State->Flags.Cf = State->Flags.Of = ((Result < FAST486_CHAR_MIN)
|| (Result > FAST486_CHAR_MAX));
/* Write back the result */
State->GeneralRegs[FAST486_REG_EAX].LowWord = (USHORT)Result;
@@ -1023,7 +1023,7 @@
Quotient = (SHORT)State->GeneralRegs[FAST486_REG_EAX].LowWord /
(CHAR)Value;
Remainder = (SHORT)State->GeneralRegs[FAST486_REG_EAX].LowWord %
(CHAR)Value;
- if (Quotient > 127 || Quotient < -128)
+ if (Quotient > FAST486_CHAR_MAX || Quotient < FAST486_CHAR_MIN)
{
/* Divide error */
Fast486Exception(State, FAST486_EXCEPTION_DE);
@@ -1205,7 +1205,7 @@
LONGLONG Result = (LONGLONG)((LONG)Value) *
(LONGLONG)((LONG)State->GeneralRegs[FAST486_REG_EAX].Long);
/* Update the flags */
- State->Flags.Cf = State->Flags.Of = ((Result < -2147483648LL)
|| (Result > 2147483647LL));
+ State->Flags.Cf = State->Flags.Of = ((Result <
FAST486_LONG_MIN) || (Result > FAST486_LONG_MAX));
/* Write back the result */
State->GeneralRegs[FAST486_REG_EAX].Long = Result &
0xFFFFFFFFULL;
@@ -1216,7 +1216,7 @@
LONG Result = (LONG)((SHORT)Value) *
(LONG)((SHORT)State->GeneralRegs[FAST486_REG_EAX].LowWord);
/* Update the flags */
- State->Flags.Cf = State->Flags.Of = ((Result < -32768) ||
(Result > 32767));
+ State->Flags.Cf = State->Flags.Of = ((Result <
FAST486_SHORT_MIN) || (Result > FAST486_SHORT_MAX));
/* Write back the result */
State->GeneralRegs[FAST486_REG_EAX].LowWord = LOWORD(Result);
@@ -1293,7 +1293,7 @@
LONGLONG Quotient = Dividend / (LONG)Value;
LONG Remainder = Dividend % (LONG)Value;
- if (Quotient > 2147483647LL || Quotient < -2147483648LL)
+ if (Quotient > FAST486_LONG_MAX || Quotient < FAST486_LONG_MIN)
{
/* Divide error */
Fast486Exception(State, FAST486_EXCEPTION_DE);
@@ -1311,7 +1311,7 @@
LONG Quotient = Dividend / (SHORT)LOWORD(Value);
SHORT Remainder = Dividend % (SHORT)LOWORD(Value);
- if (Quotient > 32767 || Quotient < -32768)
+ if (Quotient > FAST486_SHORT_MAX || Quotient <
FAST486_SHORT_MIN)
{
/* Divide error */
Fast486Exception(State, FAST486_EXCEPTION_DE);
