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Added builtin .min() and .max() pseudo functions to the assembler.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@4583 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz
2010-02-11 18:54:08 +00:00
parent c72cf88723
commit 61b69316c5
10 changed files with 188 additions and 34 deletions
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40
src/ca65/studyexpr.c
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@@ -481,7 +481,7 @@ static void StudyBinaryExpr (ExprNode* Expr, ExprDesc* D)
ED_Done (&Right);
}
static void StudyLiteral (ExprNode* Expr, ExprDesc* D)
/* Study a literal expression node */
@@ -1002,6 +1002,34 @@ static void StudyBoolXor (ExprNode* Expr, ExprDesc* D)
static void StudyMax (ExprNode* Expr, ExprDesc* D)
/* Study an MAX binary expression node */
{
/* Use helper function */
StudyBinaryExpr (Expr, D);
/* If the result is valid, apply the operation */
if (ED_IsValid (D)) {
D->Val = (D->Val > D->Right)? D->Val : D->Right;
}
}
static void StudyMin (ExprNode* Expr, ExprDesc* D)
/* Study an MIN binary expression node */
{
/* Use helper function */
StudyBinaryExpr (Expr, D);
/* If the result is valid, apply the operation */
if (ED_IsValid (D)) {
D->Val = (D->Val < D->Right)? D->Val : D->Right;
}
}
static void StudyUnaryMinus (ExprNode* Expr, ExprDesc* D)
/* Study an EXPR_UNARY_MINUS expression node */
{
@@ -1279,6 +1307,14 @@ static void StudyExprInternal (ExprNode* Expr, ExprDesc* D)
StudyBoolXor (Expr, D);
break;
case EXPR_MAX:
StudyMax (Expr, D);
break;
case EXPR_MIN:
StudyMin (Expr, D);
break;
case EXPR_UNARY_MINUS:
StudyUnaryMinus (Expr, D);
break;
@@ -1368,7 +1404,7 @@ void StudyExpr (ExprNode* Expr, ExprDesc* D)
*/
if (D->AddrSize == ADDR_SIZE_DEFAULT && ED_IsConst (D)) {
D->AddrSize = GetConstAddrSize (D->Val);
}
}
/* If the expression is valid, throw away the address size and recalculate
* it using the data we have. This is more exact than the on-the-fly