From: Peter Johnson <peter@tortall.net>
Date: Mon, 12 Jun 2006 05:29:22 +0000 (-0000)
Subject: Add yasm_intnum_set_int().
X-Git-Tag: v0.6.0~172^2~18
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7ebf4d268ee91952a26424e0b7362da35ecff196;p=yasm

Add yasm_intnum_set_int().

svn path=/branches/new-optimizer/; revision=1573
---

diff --git a/libyasm/intnum.c b/libyasm/intnum.c
index 94b8e733..8b1074be 100644
--- a/libyasm/intnum.c
+++ b/libyasm/intnum.c
@@ -594,6 +594,27 @@ yasm_intnum_set_uint(yasm_intnum *intn, unsigned long val)
     intn->val.ul = val;
 }
 
+void
+yasm_intnum_set_int(yasm_intnum *intn, long val)
+{
+    /* positive numbers can go through the uint() function */
+    if (i >= 0) {
+	yasm_intnum_set_uint(intn, (unsigned long)i);
+	return;
+    }
+
+    BitVector_Empty(conv_bv);
+    BitVector_Chunk_Store(conv_bv, 32, 0, (unsigned long)(-i));
+    BitVector_Negate(conv_bv, conv_bv);
+
+    if (intn->type == INTNUM_BV)
+	BitVector_Copy(intn->val.bv, conv_bv);
+    else {
+	intn->val.bv = BitVector_Clone(conv_bv);
+	intn->type = INTNUM_BV;
+    }
+}
+
 int
 yasm_intnum_is_zero(const yasm_intnum *intn)
 {
diff --git a/libyasm/intnum.h b/libyasm/intnum.h
index 90535154..f6c44c6e 100644
--- a/libyasm/intnum.h
+++ b/libyasm/intnum.h
@@ -136,6 +136,12 @@ void yasm_intnum_zero(yasm_intnum *intn);
  */
 void yasm_intnum_set_uint(yasm_intnum *intn, unsigned long val);
 
+/** Set an intnum to an signed integer.
+ * \param intn	    intnum
+ * \param val	    integer value
+ */
+void yasm_intnum_set_int(yasm_intnum *intn, long val);
+
 /** Simple value check for 0.
  * \param acc	    intnum
  * \return Nonzero if acc==0.