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git-svn-id: svn://svn.cc65.org/cc65/trunk@2109 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2003-05-01 18:58:35 +00:00
parent aaf1db13dd
commit 2a5fbd00ef
13 changed files with 401 additions and 44 deletions
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89
src/sim65/chip.c
View File

@ -45,11 +45,42 @@
/* sim65 */
#include "cfgdata.h"
#include "chipdata.h"
#include "cpucore.h"
#include "error.h"
#include "chip.h"
/*****************************************************************************/
/* Forwards */
/*****************************************************************************/
static int GetCfgId (void* CfgInfo, const char* Name, char** Id);
/* Search CfgInfo for an attribute with the given name and type "id". If
* found, remove it from the configuration, pass a pointer to a dynamically
* allocated string containing the value to Id, and return true. If not
* found, return false. The memory passed in Id must be free by a call to
* Free();
*/
static int GetCfgStr (void* CfgInfo, const char* Name, char** S);
/* Search CfgInfo for an attribute with the given name and type "id". If
* found, remove it from the configuration, pass a pointer to a dynamically
* allocated string containing the value to Id, and return true. If not
* found, return false. The memory passed in S must be free by a call to
* Free();
*/
static int GetCfgNum (void* CfgInfo, const char* Name, long* Val);
/* Search CfgInfo for an attribute with the given name and type "number".
* If found, remove it from the configuration, copy it into Val and return
* true. If not found, return false.
*/
/*****************************************************************************/
/* Data */
/*****************************************************************************/
@ -71,9 +102,10 @@ static const SimData Sim65Data = {
Warning,
Error,
Internal,
CfgDataGetId,
CfgDataGetStr,
CfgDataGetNum
Break,
GetCfgId,
GetCfgStr,
GetCfgNum
};
@ -84,6 +116,43 @@ static const SimData Sim65Data = {
static int GetCfgId (void* CfgInfo, const char* Name, char** Id)
/* Search CfgInfo for an attribute with the given name and type "id". If
* found, remove it from the configuration, pass a pointer to a dynamically
* allocated string containing the value to Id, and return true. If not
* found, return false. The memory passed in Id must be free by a call to
* Free();
*/
{
return CfgDataGetId (CfgInfo, Name, Id);
}
static int GetCfgStr (void* CfgInfo, const char* Name, char** S)
/* Search CfgInfo for an attribute with the given name and type "id". If
* found, remove it from the configuration, pass a pointer to a dynamically
* allocated string containing the value to Id, and return true. If not
* found, return false. The memory passed in S must be free by a call to
* Free();
*/
{
return CfgDataGetStr (CfgInfo, Name, S);
}
static int GetCfgNum (void* CfgInfo, const char* Name, long* Val)
/* Search CfgInfo for an attribute with the given name and type "number".
* If found, remove it from the configuration, copy it into Val and return
* true. If not found, return false.
*/
{
return CfgDataGetNum (CfgInfo, Name, Val);
}
static int CmpChips (void* Data attribute ((unused)),
const void* lhs, const void* rhs)
/* Compare function for CollSort */
@ -312,7 +381,7 @@ void LoadChipLibrary (const char* LibName)
const ChipData* D = Data + I;
/* Check if the chip data has the correct version */
if (Data->MajorVersion != CHIPDATA_VER_MAJOR) {
if (D->MajorVersion != CHIPDATA_VER_MAJOR) {
Warning ("Version mismatch for `%s' (%s), expected %u, got %u",
D->ChipName, L->LibName,
CHIPDATA_VER_MAJOR, D->MajorVersion);
@ -320,6 +389,9 @@ void LoadChipLibrary (const char* LibName)
continue;
}
/* Initialize the chip passing the simulator data */
D->InitChip (&Sim65Data);
/* Generate a new chip */
C = NewChip (L, D);
@ -328,10 +400,11 @@ void LoadChipLibrary (const char* LibName)
/* Output chip name and version to keep the user happy */
Print (stdout, 1,
" Found `%s', version %u.%u in library `%s'\n",
Data->ChipName,
Data->MajorVersion,
Data->MinorVersion,
" Found %s `%s', version %u.%u in library `%s'\n",
(D->Type == CHIPDATA_TYPE_CHIP)? "chip" : "cpu",
D->ChipName,
D->MajorVersion,
D->MinorVersion,
L->LibName);
}
}

5
src/sim65/chipdata.h
View File

@ -44,7 +44,9 @@
/* Version information. */
/* Chip type and version information. */
#define CHIPDATA_TYPE_CHIP 0U
#define CHIPDATA_TYPE_CPU 1U
#define CHIPDATA_VER_MAJOR 1U
#define CHIPDATA_VER_MINOR 0U
@ -56,6 +58,7 @@ struct SimData;
typedef struct ChipData ChipData;
struct ChipData {
const char* ChipName; /* Name of the chip */
unsigned Type; /* Type of the chip */
unsigned MajorVersion; /* Version information */
unsigned MinorVersion;

5
src/sim65/chips/make/gcc.mak
View File

@ -14,6 +14,7 @@ LDFLAGS =
LIBS = $(COMMON)/common.a
CHIPS = ram.so \
rom.so \
stdio.so
OBJS = $(CHIPS:.so=.o)
@ -34,6 +35,10 @@ ram.so: ram.o
$(CC) $(CFLAGS) -shared -o $@ $(LIBS) $^
@if [ $(OS2_SHELL) ] ; then $(EBIND) $@ ; fi
rom.so: rom.o
$(CC) $(CFLAGS) -shared -o $@ $(LIBS) $^
@if [ $(OS2_SHELL) ] ; then $(EBIND) $@ ; fi
stdio.so: stdio.o
$(CC) $(CFLAGS) -shared -o $@ $(LIBS) $^
@if [ $(OS2_SHELL) ] ; then $(EBIND) $@ ; fi

17
src/sim65/chips/ram.c
View File

@ -6,10 +6,10 @@
/* */
/* */
/* */
/* (C) 2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* (C) 2002-2003 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
@ -47,7 +47,7 @@
int InitChip (const struct SimData* Data);
static int InitChip (const struct SimData* Data);
/* Initialize the chip, return an error code */
static void* InitInstance (unsigned Addr, unsigned Range, void* CfgInfo);
@ -77,6 +77,7 @@ static unsigned char Read (void* Data, unsigned Offs);
static const struct ChipData RAMData[1] = {
{
"RAM", /* Name of the chip */
CHIPDATA_TYPE_CHIP, /* Type of the chip */
CHIPDATA_VER_MAJOR, /* Version information */
CHIPDATA_VER_MINOR,
@ -132,7 +133,7 @@ int GetChipData (const ChipData** Data, unsigned* Count)
int InitChip (const struct SimData* Data)
static int InitChip (const struct SimData* Data)
/* Initialize the chip, return an error code */
{
/* Remember the pointer */
@ -187,7 +188,7 @@ static void Write (void* Data, unsigned Offs, unsigned char Val)
/* Check for a write to a write protected cell */
if (D->MemAttr[Offs] & ATTR_WPROT) {
Sim->Warning ("Writing to write protected memory at $%04X", D->BaseAddr+Offs);
Sim->Break ("Writing to write protected memory at $%04X", D->BaseAddr+Offs);
}
/* Do the write and remember the cell as initialized */
@ -218,7 +219,7 @@ static unsigned char Read (void* Data, unsigned Offs)
/* Check for a read from an uninitialized cell */
if ((D->MemAttr[Offs] & ATTR_INITIALIZED) == 0) {
/* We're reading a memory cell that was never written to */
Sim->Warning ("Reading from uninitialized memory at $%04X", D->BaseAddr+Offs);
Sim->Break ("Reading from uninitialized memory at $%04X", D->BaseAddr+Offs);
}
/* Read the cell and return the value */

236
src/sim65/chips/rom.c Normal file
View File

@ -0,0 +1,236 @@
/*****************************************************************************/
/* */
/* rom.c */
/* */
/* ROM plugin for the sim65 6502 simulator */
/* */
/* */
/* */
/* (C) 2003 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
/* sim65 */
#include "chipif.h"
/*****************************************************************************/
/* Forwards */
/*****************************************************************************/
static int InitChip (const struct SimData* Data);
/* Initialize the chip, return an error code */
static void* InitInstance (unsigned Addr, unsigned Range, void* CfgInfo);
/* Initialize a new chip instance */
static void WriteCtrl (void* Data, unsigned Offs, unsigned char Val);
/* Write control data */
static void Write (void* Data, unsigned Offs, unsigned char Val);
/* Write user data */
static unsigned char ReadCtrl (void* Data, unsigned Offs);
/* Read control data */
static unsigned char Read (void* Data, unsigned Offs);
/* Read user data */
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* Control data passed to the main program */
static const struct ChipData ROMData[1] = {
{
"ROM", /* Name of the chip */
CHIPDATA_TYPE_CHIP, /* Type of the chip */
CHIPDATA_VER_MAJOR, /* Version information */
CHIPDATA_VER_MINOR,
/* -- Exported functions -- */
InitChip,
InitInstance,
WriteCtrl,
Write,
ReadCtrl,
Read
}
};
/* The SimData pointer we get when InitChip is called */
static const SimData* Sim;
/* Data for one ROM instance */
typedef struct InstanceData InstanceData;
struct InstanceData {
unsigned BaseAddr; /* Base address */
unsigned Range; /* Memory range */
unsigned char* Mem; /* The memory itself */
};
/*****************************************************************************/
/* Exported function */
/*****************************************************************************/
int GetChipData (const ChipData** Data, unsigned* Count)
{
/* Pass the control structure to the caller */
*Data = ROMData;
*Count = sizeof (Data) / sizeof (Data[0]);
/* Call was successful */
return 0;
}
/*****************************************************************************/
/* Code */
/*****************************************************************************/
static int InitChip (const struct SimData* Data)
/* Initialize the chip, return an error code */
{
/* Remember the pointer */
Sim = Data;
/* Always successful */
return 0;
}
static void* InitInstance (unsigned Addr, unsigned Range, void* CfgInfo)
/* Initialize a new chip instance */
{
char* Name;
FILE* F;
/* Allocate a new instance structure */
InstanceData* D = Sim->Malloc (sizeof (InstanceData));
/* Initialize the structure, allocate RAM and attribute memory */
D->BaseAddr = Addr;
D->Range = Range;
D->Mem = Sim->Malloc (Range);
/* We must have a "file" attribute. Get it. */
if (Sim->GetCfgStr (CfgInfo, "file", &Name) == 0) {
/* Attribute not found */
Sim->Error ("Attribute `file' missing"); /* ### */
}
/* Open the file with the given name */
F = fopen (Name, "rb");
if (F == 0) {
Sim->Error ("Cannot open `%s': %s", Name, strerror (errno));
}
/* Read the file into the memory */
if (fread (D->Mem, 1, D->Range, F) != D->Range) {
Sim->Warning ("Cannot read %u bytes from file `%s'", D->Range, Name);
}
/* Close the file */
fclose (F);
/* Free the file name */
Sim->Free (Name);
/* Done, return the instance data */
return D;
}
static void WriteCtrl (void* Data, unsigned Offs, unsigned char Val)
/* Write control data */
{
/* Cast the data pointer */
InstanceData* D = (InstanceData*) Data;
/* Do the write */
D->Mem[Offs] = Val;
}
static void Write (void* Data, unsigned Offs, unsigned char Val)
/* Write user data */
{
/* Cast the data pointer */
InstanceData* D = (InstanceData*) Data;
/* Print a warning */
Sim->Break ("Writing to write protected memory at $%04X (value = $%02X)",
D->BaseAddr+Offs, Val);
}
static unsigned char ReadCtrl (void* Data, unsigned Offs)
/* Read control data */
{
/* Cast the data pointer */
InstanceData* D = (InstanceData*) Data;
/* Read the cell and return the value */
return D->Mem[Offs];
}
static unsigned char Read (void* Data, unsigned Offs)
/* Read user data */
{
/* Cast the data pointer */
InstanceData* D = (InstanceData*) Data;
/* Read the cell and return the value */
return D->Mem[Offs];
}

17
src/sim65/chips/stdio.c
View File

@ -6,10 +6,10 @@
/* */
/* */
/* */
/* (C) 2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* (C) 2002-2003 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
@ -51,7 +51,7 @@
int InitChip (const struct SimData* Data);
static int InitChip (const struct SimData* Data);
/* Initialize the chip, return an error code */
static void* InitInstance (unsigned Addr, unsigned Range, void* CfgInfo);
@ -72,9 +72,10 @@ static unsigned char Read (void* Data, unsigned Offs);
/* Control data passed to the main program */
static const struct ChipData RAMData[1] = {
static const struct ChipData STDIOData[1] = {
{
"STDIO", /* Name of the chip */
CHIPDATA_TYPE_CHIP, /* Type of the chip */
CHIPDATA_VER_MAJOR, /* Version information */
CHIPDATA_VER_MINOR,
@ -102,7 +103,7 @@ static const SimData* Sim;
int GetChipData (const ChipData** Data, unsigned* Count)
{
/* Pass the control structure to the caller */
*Data = RAMData;
*Data = STDIOData;
*Count = sizeof (Data) / sizeof (Data[0]);
/* Call was successful */
@ -117,7 +118,7 @@ int GetChipData (const ChipData** Data, unsigned* Count)
int InitChip (const struct SimData* Data)
static int InitChip (const struct SimData* Data)
/* Initialize the chip, return an error code */
{
/* Remember the pointer */

2
src/sim65/config.c
View File

@ -304,7 +304,7 @@ static void ParseMemory (void)
CollDelete (&L->Attributes, Index);
/* Create the chip instance for the address range */
Range = L->End - L->Start;
Range = L->End - L->Start + 1;
CI = NewChipInstance (D->V.SVal, L->Start, Range, &L->Attributes);
/* Delete the "name" attribute */

24
src/sim65/cpucore.c
View File

@ -33,12 +33,15 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
/* common */
#include "abend.h"
#include "attrib.h"
#include "print.h"
#include "xsprintf.h"
/* sim65 */
#include "cputype.h"
@ -82,6 +85,9 @@ static unsigned StackPage = 0x100;
/* */
int CPUHalted;
/* Break message */
static char BreakMsg[1024];
/*****************************************************************************/
@ -2489,6 +2495,17 @@ void NMI (void)
void Break (const char* Format, ...)
/* Stop running and display the given message */
{
va_list ap;
va_start (ap, Format);
xvsprintf (BreakMsg, sizeof (BreakMsg), Format, ap);
va_end (ap);
}
void CPURun (void)
/* Run the CPU */
{
@ -2497,7 +2514,7 @@ void CPURun (void)
/* Get the next opcode */
unsigned char OPC = MemReadByte (PC);
printf ("%6lu %04X %02X A=%02X X=%02X Y=%02X %c%c%c%c%c%c%c\n",
printf ("%9lu %06X %02X A=%02X X=%02X Y=%02X %c%c%c%c%c%c%c\n",
TotalCycles, PC, OPC, AC, XR, YR,
GET_SF()? 'S' : '-',
GET_ZF()? 'Z' : '-',
@ -2512,6 +2529,11 @@ void CPURun (void)
/* Count cycles */
TotalCycles += Cycles;
if (BreakMsg[0]) {
printf ("%s\n", BreakMsg);
BreakMsg[0] = '\0';
}
}
}

3
src/sim65/cpucore.h
View File

@ -81,6 +81,9 @@ void IRQ (void);
void NMI (void);
/* Generate an NMI */
void Break (const char* Format, ...);
/* Stop running and display the given message */
void CPURun (void);
/* Run the CPU */

20
src/sim65/main.c
View File

@ -6,9 +6,9 @@
/* */
/* */
/* */
/* (C) 2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* (C) 2002-2003 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
@ -110,10 +110,20 @@ static void OptChipDir (const char* Opt attribute ((unused)), const char* Arg)
/* Read in all files and treat them as libraries */
while ((E = readdir (D)) != 0) {
char* Name;
struct stat S;
/* ### Ignore anything buy *.so files */
unsigned NameLen = strlen (E->d_name);
if (NameLen <= 3) {
continue;
}
if (strcmp (E->d_name + NameLen - 3, ".so") != 0) {
continue;
}
/* Create the full file name */
char* Name = xmalloc (DirLen + 1 + strlen (E->d_name) + 1);
Name = xmalloc (DirLen + 1 + NameLen + 1);
strcpy (Name, Arg);
strcpy (Name + DirLen, "/");
strcpy (Name + DirLen + 1, E->d_name);
@ -298,7 +308,7 @@ int main (int argc, char* argv[])
CfgRead ();
CPUInit ();
#if 0
#if 1
CPURun ();
#endif

8
src/sim65/memory.c
View File

@ -6,9 +6,9 @@
/* */
/* */
/* */
/* (C) 2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* (C) 2002-2003 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
@ -162,7 +162,7 @@ void MemInit (void)
default:
Internal ("Unexpected CPU type: %d", CPU);
}
MemData = xmalloc (MemSize);
MemData = xmalloc (MemSize * sizeof (ChipInstance*));
/* Clear the memory */
for (I = 0; I < MemSize; ++I) {

6
src/sim65/memory.h
View File

@ -6,9 +6,9 @@
/* */
/* */
/* */
/* (C) 2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* (C) 2002-2003 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */

13
src/sim65/simdata.h
View File

@ -67,6 +67,9 @@ struct SimData {
void (*Internal) (const char* Format, ...);
/* Print an internal program error and terminate */
void (*Break) (const char* Format, ...);
/* Stop the CPU and display the given message */
int (*GetCfgId) (void* CfgInfo, const char* Name, char** Id);
/* Search CfgInfo for an attribute with the given name and type "id". If
* found, remove it from the configuration, pass a pointer to a dynamically
@ -76,11 +79,11 @@ struct SimData {
*/
int (*GetCfgStr) (void* CfgInfo, const char* Name, char** S);
/* Search CfgInfo for an attribute with the given name and type "id". If
* found, remove it from the configuration, pass a pointer to a dynamically
* allocated string containing the value to Id, and return true. If not
* found, return false. The memory passed in S must be free by a call to
* Free();
/* Search CfgInfo for an attribute with the given name and type "string".
* If found, remove it from the configuration, pass a pointer to a
* dynamically allocated string containing the value to S, and return
* true. If not found, return false. The memory passed in S must be free
* by a call to Free();
*/
int (*GetCfgNum) (void* CfgInfo, const char* Name, long* Val);