#include "emulator.h"
#include "bios.h"
+#include "bop.h"
#include "dos.h"
#include "vga.h"
#include "pic.h"
static VOID WINAPI EmulatorReadIo(PFAST486_STATE State, ULONG Port, PVOID Buffer, ULONG Size)
{
+ INT i;
LPBYTE Address = (LPBYTE)Buffer;
UNREFERENCED_PARAMETER(State);
- UNREFERENCED_PARAMETER(Size);
- switch (Port)
+ for (i = 0; i < Size; i++)
{
- case PIC_MASTER_CMD:
- case PIC_SLAVE_CMD:
+ switch (Port)
{
- *Address = PicReadCommand(Port);
- break;
- }
-
- case PIC_MASTER_DATA:
- case PIC_SLAVE_DATA:
- {
- *Address = PicReadData(Port);
- break;
- }
-
- case PIT_DATA_PORT(0):
- case PIT_DATA_PORT(1):
- case PIT_DATA_PORT(2):
- {
- *Address = PitReadData(Port - PIT_DATA_PORT(0));
- break;
- }
-
- case PS2_CONTROL_PORT:
- {
- *Address = KeyboardReadStatus();
- break;
- }
-
- case PS2_DATA_PORT:
- {
- *Address = KeyboardReadData();
- break;
- }
-
- case VGA_AC_WRITE:
- case VGA_AC_READ:
- case VGA_SEQ_INDEX:
- case VGA_SEQ_DATA:
- case VGA_DAC_READ_INDEX:
- case VGA_DAC_WRITE_INDEX:
- case VGA_DAC_DATA:
- case VGA_MISC_READ:
- case VGA_MISC_WRITE:
- case VGA_CRTC_INDEX:
- case VGA_CRTC_DATA:
- case VGA_GC_INDEX:
- case VGA_GC_DATA:
- case VGA_STAT_MONO:
- case VGA_STAT_COLOR:
- {
- *Address = VgaReadPort(Port);
- break;
- }
-
- default:
- {
- DPRINT1("Read from unknown port: 0x%X\n", Port);
+ case PIC_MASTER_CMD:
+ case PIC_SLAVE_CMD:
+ {
+ *(Address++) = PicReadCommand(Port);
+ break;
+ }
+
+ case PIC_MASTER_DATA:
+ case PIC_SLAVE_DATA:
+ {
+ *(Address++) = PicReadData(Port);
+ break;
+ }
+
+ case PIT_DATA_PORT(0):
+ case PIT_DATA_PORT(1):
+ case PIT_DATA_PORT(2):
+ {
+ *(Address++) = PitReadData(Port - PIT_DATA_PORT(0));
+ break;
+ }
+
+ case PS2_CONTROL_PORT:
+ {
+ *(Address++) = KeyboardReadStatus();
+ break;
+ }
+
+ case PS2_DATA_PORT:
+ {
+ *(Address++) = KeyboardReadData();
+ break;
+ }
+
+ case VGA_AC_WRITE:
+ case VGA_AC_READ:
+ case VGA_SEQ_INDEX:
+ case VGA_SEQ_DATA:
+ case VGA_DAC_READ_INDEX:
+ case VGA_DAC_WRITE_INDEX:
+ case VGA_DAC_DATA:
+ case VGA_MISC_READ:
+ case VGA_MISC_WRITE:
+ case VGA_CRTC_INDEX:
+ case VGA_CRTC_DATA:
+ case VGA_GC_INDEX:
+ case VGA_GC_DATA:
+ case VGA_STAT_MONO:
+ case VGA_STAT_COLOR:
+ {
+ *(Address++) = VgaReadPort(Port);
+ break;
+ }
+
+ default:
+ {
+ DPRINT1("Read from unknown port: 0x%X\n", Port);
+ }
}
}
}
static VOID WINAPI EmulatorWriteIo(PFAST486_STATE State, ULONG Port, PVOID Buffer, ULONG Size)
{
- BYTE Byte = *(LPBYTE)Buffer;
+ INT i;
+ LPBYTE Address = (LPBYTE)Buffer;
UNREFERENCED_PARAMETER(State);
- UNREFERENCED_PARAMETER(Size);
- switch (Port)
+ for (i = 0; i < Size; i++)
{
- case PIT_COMMAND_PORT:
- {
- PitWriteCommand(Byte);
- break;
- }
-
- case PIT_DATA_PORT(0):
- case PIT_DATA_PORT(1):
- case PIT_DATA_PORT(2):
- {
- PitWriteData(Port - PIT_DATA_PORT(0), Byte);
- break;
- }
-
- case PIC_MASTER_CMD:
- case PIC_SLAVE_CMD:
- {
- PicWriteCommand(Port, Byte);
- break;
- }
-
- case PIC_MASTER_DATA:
- case PIC_SLAVE_DATA:
- {
- PicWriteData(Port, Byte);
- break;
- }
-
- case PS2_CONTROL_PORT:
- {
- KeyboardWriteCommand(Byte);
- break;
- }
-
- case PS2_DATA_PORT:
+ switch (Port)
{
- KeyboardWriteData(Byte);
- break;
- }
-
- case VGA_AC_WRITE:
- case VGA_AC_READ:
- case VGA_SEQ_INDEX:
- case VGA_SEQ_DATA:
- case VGA_DAC_READ_INDEX:
- case VGA_DAC_WRITE_INDEX:
- case VGA_DAC_DATA:
- case VGA_MISC_READ:
- case VGA_MISC_WRITE:
- case VGA_CRTC_INDEX:
- case VGA_CRTC_DATA:
- case VGA_GC_INDEX:
- case VGA_GC_DATA:
- case VGA_STAT_MONO:
- case VGA_STAT_COLOR:
- {
- VgaWritePort(Port, Byte);
- break;
- }
-
- default:
- {
- DPRINT1("Write to unknown port: 0x%X\n", Port);
+ case PIT_COMMAND_PORT:
+ {
+ PitWriteCommand(*(Address++));
+ break;
+ }
+
+ case PIT_DATA_PORT(0):
+ case PIT_DATA_PORT(1):
+ case PIT_DATA_PORT(2):
+ {
+ PitWriteData(Port - PIT_DATA_PORT(0), *(Address++));
+ break;
+ }
+
+ case PIC_MASTER_CMD:
+ case PIC_SLAVE_CMD:
+ {
+ PicWriteCommand(Port, *(Address++));
+ break;
+ }
+
+ case PIC_MASTER_DATA:
+ case PIC_SLAVE_DATA:
+ {
+ PicWriteData(Port, *(Address++));
+ break;
+ }
+
+ case PS2_CONTROL_PORT:
+ {
+ KeyboardWriteCommand(*(Address++));
+ break;
+ }
+
+ case PS2_DATA_PORT:
+ {
+ KeyboardWriteData(*(Address++));
+ break;
+ }
+
+ case VGA_AC_WRITE:
+ case VGA_AC_READ:
+ case VGA_SEQ_INDEX:
+ case VGA_SEQ_DATA:
+ case VGA_DAC_READ_INDEX:
+ case VGA_DAC_WRITE_INDEX:
+ case VGA_DAC_DATA:
+ case VGA_MISC_READ:
+ case VGA_MISC_WRITE:
+ case VGA_CRTC_INDEX:
+ case VGA_CRTC_DATA:
+ case VGA_GC_INDEX:
+ case VGA_GC_DATA:
+ case VGA_STAT_MONO:
+ case VGA_STAT_COLOR:
+ {
+ VgaWritePort(Port, *(Address++));
+ break;
+ }
+
+ default:
+ {
+ DPRINT1("Write to unknown port: 0x%X\n", Port);
+ }
}
}
}
-VOID WINAPI ControlBop(LPWORD Stack);
static VOID WINAPI EmulatorBiosOperation(PFAST486_STATE State, UCHAR BopCode)
{
WORD StackSegment, StackPointer;
/* Get the stack */
Stack = (LPWORD)SEG_OFF_TO_PTR(StackSegment, StackPointer);
- switch (BopCode)
- {
- case EMULATOR_INT_BOP:
- ControlBop(Stack);
- break;
-
- default:
- DPRINT1("Invalid BOP code %u\n", BopCode);
- break;
- }
-}
-
-static VOID WINAPI EmulatorIdle(PFAST486_STATE State)
-{
+ if (BopProc[BopCode] != NULL)
+ BopProc[BopCode](Stack);
+ else
+ DPRINT1("Invalid BOP code %u\n", BopCode);
}
static UCHAR WINAPI EmulatorIntAcknowledge(PFAST486_STATE State)
/* PUBLIC FUNCTIONS ***********************************************************/
-BOOLEAN EmulatorInitialize()
+BOOLEAN EmulatorInitialize(VOID)
{
/* Allocate memory for the 16-bit address space */
BaseAddress = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, MAX_ADDRESS);
if (BaseAddress == NULL) return FALSE;
- /* Set the callbacks */
- EmulatorContext.MemReadCallback = EmulatorReadMemory;
- EmulatorContext.MemWriteCallback = EmulatorWriteMemory;
- EmulatorContext.IoReadCallback = EmulatorReadIo; // Must be != NULL
- EmulatorContext.IoWriteCallback = EmulatorWriteIo; // Must be != NULL
- EmulatorContext.IdleCallback = EmulatorIdle; // Must be != NULL
- EmulatorContext.BopCallback = EmulatorBiosOperation;
- EmulatorContext.IntAckCallback = EmulatorIntAcknowledge;
-
- /* Reset the CPU */
- Fast486Reset(&EmulatorContext);
+ /* Initialize the CPU */
+ Fast486Initialize(&EmulatorContext,
+ EmulatorReadMemory,
+ EmulatorWriteMemory,
+ EmulatorReadIo,
+ EmulatorWriteIo,
+ NULL,
+ EmulatorBiosOperation,
+ EmulatorIntAcknowledge);
/* Enable interrupts */
EmulatorSetFlag(EMULATOR_FLAG_IF);
return TRUE;
}
+VOID EmulatorCleanup(VOID)
+{
+ /* Free the memory allocated for the 16-bit address space */
+ if (BaseAddress != NULL) HeapFree(GetProcessHeap(), 0, BaseAddress);
+}
+
VOID EmulatorSetStack(WORD Segment, DWORD Offset)
{
Fast486SetStack(&EmulatorContext, Segment, Offset);
Fast486StepInto(&EmulatorContext);
}
-VOID EmulatorCleanup(VOID)
-{
- /* Free the memory allocated for the 16-bit address space */
- if (BaseAddress != NULL) HeapFree(GetProcessHeap(), 0, BaseAddress);
-}
-
VOID EmulatorSetA20(BOOLEAN Enabled)
{
A20Line = Enabled;
projects / reactos.git / blobdiff