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More segment support stuff.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@3806 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2007-09-02 19:49:12 +00:00
parent 8db6dcd414
commit a4b43370e7
8 changed files with 92 additions and 26 deletions
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26
src/da65/attrtab.c
View File

@ -75,7 +75,19 @@ int SegmentDefined (unsigned Start, unsigned End)
}
}
return 0;
}
}
int HaveSegmentChange (unsigned Addr)
/* Return true if the segment change attribute is set for the given address */
{
/* Check the given address */
AddrCheck (Addr);
/* Return the attribute */
return (AttrTab[Addr] & atSegmentChange) != 0;
}
@ -133,6 +145,18 @@ void MarkAddr (unsigned Addr, attr_t Attr)
attr_t GetAttr (unsigned Addr)
/* Return the attribute for the given address */
{
/* Check the given address */
AddrCheck (Addr);
/* Return the attribute */
return AttrTab[Addr];
}
attr_t GetStyleAttr (unsigned Addr)
/* Return the style attribute for the given address */
{

7
src/da65/attrtab.h
View File

@ -73,6 +73,7 @@ typedef enum attr_t {
/* Segment */
atSegment = 0x0100, /* Code is in a segment */
atSegmentChange = 0x0200, /* Either segment start or segment end */
} attr_t;
@ -89,6 +90,9 @@ void AddrCheck (unsigned Addr);
int SegmentDefined (unsigned Start, unsigned End);
/* Return true if the atSegment bit is set somewhere in the given range */
int HaveSegmentChange (unsigned Addr);
/* Return true if the segment change attribute is set for the given address */
unsigned GetGranularity (attr_t Style);
/* Get the granularity for the given style */
@ -98,6 +102,9 @@ void MarkRange (unsigned Start, unsigned End, attr_t Attr);
void MarkAddr (unsigned Addr, attr_t Attr);
/* Mark an address with an attribute */
attr_t GetAttr (unsigned Addr);
/* Return the attribute for the given address */
attr_t GetStyleAttr (unsigned Addr);
/* Return the style attribute for the given address */

20
src/da65/data.c
View File

@ -6,8 +6,8 @@
/* */
/* */
/* */
/* (C) 2000-2004 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* (C) 2000-2007 Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
@ -57,14 +57,22 @@ static unsigned GetSpan (attr_t Style)
unsigned RemainingBytes = GetRemainingBytes ();
/* Count how many bytes are available. This number is limited by the
* number of remaining bytes, a label, or the end of the given Style
* attribute.
* number of remaining bytes, a label, a segment change, or the end of
* the given Style attribute.
*/
unsigned Count = 1;
while (Count < RemainingBytes) {
if (MustDefLabel(PC+Count) || GetStyleAttr (PC+Count) != Style) {
attr_t Attr;
if (MustDefLabel(PC+Count)) {
break;
}
}
Attr = GetAttr (PC+Count);
if ((Attr & atStyleMask) != Style) {
break;
}
if ((Attr & atSegmentChange)) {
break;
}
++Count;
}

6
src/da65/labels.c
View File

@ -6,8 +6,8 @@
/* */
/* */
/* */
/* (C) 2006 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* (C) 2006-2007 Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
@ -378,7 +378,7 @@ static void DefOutOfRangeLabel (unsigned long Addr)
case atIntLabel:
case atExtLabel:
DefineConst (SymTab[Addr], GetComment (Addr), Addr);
DefConst (SymTab[Addr], GetComment (Addr), Addr);
break;
case atUnnamedLabel:

6
src/da65/main.c
View File

@ -6,8 +6,8 @@
/* */
/* */
/* */
/* (C) 1998-2006 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* (C) 1998-2007 Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
@ -385,7 +385,7 @@ static void OneOpcode (unsigned RemainingBytes)
} else {
unsigned I;
for (I = 1; I < D->Size; ++I) {
if (HaveLabel (PC+I)) {
if (HaveLabel (PC+I) || HaveSegmentChange (PC+I)) {
Style = atIllegal;
MarkAddr (PC, Style);
break;

24
src/da65/output.c
View File

@ -6,8 +6,8 @@
/* */
/* */
/* */
/* (C) 2000-2006 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* (C) 2000-2007 Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
@ -40,6 +40,7 @@
#include <errno.h>
/* common */
#include "addrsize.h"
#include "cpu.h"
#include "version.h"
@ -199,7 +200,7 @@ void DefForward (const char* Name, const char* Comment, unsigned Offs)
void DefineConst (const char* Name, const char* Comment, unsigned Addr)
void DefConst (const char* Name, const char* Comment, unsigned Addr)
/* Define an address constant */
{
if (Pass == PassCount) {
@ -216,6 +217,23 @@ void DefineConst (const char* Name, const char* Comment, unsigned Addr)
void StartSegment (const char* Name, unsigned AddrSize)
/* Start a segment */
{
if (Pass == PassCount) {
Output (".segment");
Indent (ACol);
if (AddrSize == ADDR_SIZE_DEFAULT) {
Output ("\"%s\"", Name);
} else {
Output ("\"%s\": %s", Name, AddrSizeToStr (AddrSize));
}
LineFeed ();
}
}
void DataByteLine (unsigned ByteCount)
/* Output a line with bytes */
{

14
src/da65/output.h
View File

@ -6,8 +6,8 @@
/* */
/* */
/* */
/* (C) 2000-2003 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* (C) 2000-2007 Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
@ -67,13 +67,19 @@ void LineFeed (void);
void DefLabel (const char* Name);
/* Define a label with the given name */
void DefForward (const char* Name, const char* Comment, unsigned Offs);
void DefForward (const char* Name, const char* Comment, unsigned Offs);
/* Define a label as "* + x", where x is the offset relative to the
* current PC.
*/
void DefineConst (const char* Name, const char* Comment, unsigned Addr);
void DefConst (const char* Name, const char* Comment, unsigned Addr);
/* Define an address constant */
void StartSegment (const char* Name, unsigned AddrSize);
/* Start a segment */
void EndSegment (void);
/* End a segment */
void OneDataByte (void);
/* Output a .byte line with the current code byte */

15
src/da65/segment.c
View File

@ -52,8 +52,7 @@
/* Hash definitions */
#define HASH_SIZE 64 /* Must be power of two */
#define HASH_MASK (HASH_SIZE-1)
#define HASH_SIZE 53
/* Segment definition */
typedef struct Segment Segment;
@ -96,10 +95,14 @@ void AddAbsSegment (unsigned Start, unsigned End, const char* Name)
memcpy (S->Name, Name, Len + 1);
/* Insert the segment into the hash tables */
S->NextStart = StartTab[Start & HASH_MASK];
StartTab[Start & HASH_MASK] = S;
S->NextEnd = EndTab[End & HASH_MASK];
EndTab[End & HASH_MASK] = S;
S->NextStart = StartTab[Start % HASH_SIZE];
StartTab[Start % HASH_SIZE] = S;
S->NextEnd = EndTab[End % HASH_SIZE];
EndTab[End % HASH_SIZE] = S;
/* Mark start and end of the segment */
MarkAddr (Start, atSegmentChange);
MarkAddr (End, atSegmentChange);
/* Mark the addresses within the segment */
MarkRange (Start, End, atSegment);