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Added labels, SIEZ attribute for labels, dependent labels etc.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@343 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2000-09-29 12:26:34 +00:00
parent c15fb9b50f
commit 97f9682307
11 changed files with 273 additions and 48 deletions
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47
src/da65/attrtab.c
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@@ -121,16 +121,16 @@ const char* MakeLabelName (unsigned Addr)
void AddLabel (unsigned Addr, const char* Name)
void AddLabel (unsigned Addr, attr_t Attr, const char* Name)
/* Add a label */
{
/* Check the given address */
AddrCheck (Addr);
/* Get an existing label attribute */
attr_t ExistingAttr = GetLabelAttr (Addr);
/* Must not have two symbols for one address */
if (SymTab[Addr] != 0) {
if (strcmp (SymTab[Addr], Name) == 0) {
/* Allow label if it has the same name */
if (ExistingAttr != atNoLabel) {
/* Allow redefinition if identical */
if (ExistingAttr == Attr && strcmp (SymTab[Addr], Name) == 0) {
return;
}
Error ("Duplicate label for address %04X: %s/%s", Addr, SymTab[Addr], Name);
@@ -138,6 +138,9 @@ void AddLabel (unsigned Addr, const char* Name)
/* Create a new label */
SymTab[Addr] = xstrdup (Name);
/* Remember the attribute */
AttrTab[Addr] |= Attr;
}
@@ -154,6 +157,20 @@ int HaveLabel (unsigned Addr)
int MustDefLabel (unsigned Addr)
/* Return true if we must define a label for this address, that is, if there
* is a label at this address, and it is an external or internal label.
*/
{
/* Get the label attribute */
attr_t A = GetLabelAttr (Addr);
/* Check for an internal or external label */
return (A == atExtLabel || A == atIntLabel);
}
const char* GetLabel (unsigned Addr)
/* Return the label for an address */
{
@@ -166,7 +183,7 @@ const char* GetLabel (unsigned Addr)
unsigned char GetStyle (unsigned Addr)
unsigned char GetStyleAttr (unsigned Addr)
/* Return the style attribute for the given address */
{
/* Check the given address */
@@ -178,6 +195,18 @@ unsigned char GetStyle (unsigned Addr)
unsigned char GetLabelAttr (unsigned Addr)
/* Return the label attribute for the given address */
{
/* Check the given address */
AddrCheck (Addr);
/* Return the attribute */
return (AttrTab[Addr] & atLabelMask);
}
static void DefineConst (unsigned Addr)
/* Define an address constant */
{
@@ -198,14 +227,14 @@ void DefOutOfRangeLabels (void)
/* Low range */
for (Addr = 0; Addr < CodeStart; ++Addr) {
if (SymTab [Addr]) {
if (MustDefLabel (Addr)) {
DefineConst (Addr);
}
}
/* High range */
for (Addr = CodeEnd+1; Addr < 0x10000; ++Addr) {
if (SymTab [Addr]) {
if (MustDefLabel (Addr)) {
DefineConst (Addr);
}
}