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Working on the plugin interface

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git-svn-id: svn://svn.cc65.org/cc65/trunk@1220 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2002-04-06 22:11:09 +00:00
parent 438c8499e6
commit 9abe1e62e7
9 changed files with 641 additions and 29 deletions
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41
src/sim65/cpucore.c
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@@ -42,6 +42,7 @@
/* sim65 */
#include "cputype.h"
#include "error.h"
#include "global.h"
#include "memory.h"
#include "cpucore.h"
@@ -74,7 +75,7 @@ static unsigned StackPage = 0x100;
#define ZF 0x02 /* Zero flag */
#define IF 0x04 /* Interrupt flag */
#define DF 0x08 /* Decimal flag */
#define BF 0x10 /* Break flag */
#define BF 0x10 /* Break flag */
#define OF 0x40 /* Overflow flag */
#define SF 0x80 /* Sign flag */
@@ -84,7 +85,7 @@ int CPUHalted;
/*****************************************************************************/
/* Helper functions and macros */
/* Helper functions and macros */
/*****************************************************************************/
@@ -117,7 +118,7 @@ int CPUHalted;
#define TEST_CF(v) SET_CF (((v) & 0xFF00) != 0)
/* Program counter halves */
#define PCL (PC & 0xFF)
#define PCL (PC & 0xFF)
#define PCH ((PC >> 8) & 0xFF)
/* Stack operations */
@@ -226,7 +227,7 @@ int CPUHalted;
/* ADC */
#define ADC(v) \
if (GET_DF ()) { \
NotImplemented (); \
Warning ("Decimal mode not available"); \
} else { \
unsigned Val; \
unsigned char rhs = v; \
@@ -289,7 +290,7 @@ int CPUHalted;
/* SBC */
#define SBC(v) \
if (GET_DF ()) { \
NotImplemented (); \
Warning ("Decimal mode not available"); \
} else { \
unsigned Val; \
unsigned char rhs = v; \
@@ -309,26 +310,15 @@ int CPUHalted;
static void OPC_Illegal (void) attribute ((noreturn));
static void OPC_Illegal (void)
{
fprintf (stderr, "Illegal: $%02X\n", MemReadByte (PC));
exit (EXIT_FAILURE);
}
static void NotImplemented (void) attribute ((noreturn));
static void NotImplemented (void)
{
fprintf (stderr, "Not implemented: $%02X\n", MemReadByte (PC));
exit (EXIT_FAILURE);
Warning ("Illegal opcode $%02X at address $%04X\n", MemReadByte (PC), PC);
}
/*****************************************************************************/
/* Code */
/* Code */
/*****************************************************************************/
@@ -344,6 +334,7 @@ static void OPC_6502_00 (void)
PUSH (SR);
SET_IF (1);
PC = MemReadWord (0xFFFE);
CPUHalted = 1;
}
@@ -2505,10 +2496,20 @@ void CPURun (void)
while (!CPUHalted) {
/* Get the next opcode */
unsigned char B = MemReadByte (PC);
unsigned char OPC = MemReadByte (PC);
printf ("%6lu %04X %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' : '-',
GET_CF()? 'C' : '-',
GET_IF()? 'I' : '-',
GET_BF()? 'B' : '-',
GET_DF()? 'D' : '-',
GET_OF()? 'V' : '-');
/* Execute it */
OPCTable[B] ();
OPCTable[OPC] ();
/* Count cycles */
TotalCycles += Cycles;