#include "log.h"
#include "m68k.h"
//#include "memory.h"
-#include "objectp.h"
+#include "op.h"
#include "settings.h"
-#include "video.h"
#define NEW_TIMER_SYSTEM
#define VDB 0x46
#define VDE 0x48
#define VI 0x4E
+#define PIT0 0x50
+#define PIT1 0x52
#define BG 0x58
#define INT1 0xE0
current_line_buffer++;
uint32 b = *current_line_buffer++;
//hm. *backbuffer++ = 0xFF000000 | (b << 16) | (g << 8) | r;
- *backbuffer++ = 0x000000FF | (r << 24) | (g << 16) | (r << 8);
+ *backbuffer++ = 0x000000FF | (r << 24) | (g << 16) | (b << 8);
width--;
}
}
if (scanline & 0x01) // Execute OP only on even lines (non-interlaced only!)
return;
+//Hm, it seems that the OP needs to execute from zero, so let's try it:
+// And it works! But need to do some optimizations in the OP to keep it from attempting
+// to do a scanline render in the non-display area... [DONE]
+//this seems to cause a regression in certain games, like rayman
+#if 1
if (scanline >= (uint16)GET16(tomRam8, VDB) && scanline < (uint16)GET16(tomRam8, VDE))
{
if (render)
}
else
inActiveDisplayArea = false;
+#else
+ inActiveDisplayArea =
+ (scanline >= (uint16)GET16(tomRam8, VDB) && scanline < (uint16)GET16(tomRam8, VDE)
+ ? true : false);
+
+ if (scanline < (uint16)GET16(tomRam8, VDE))
+ {
+ if (render)//With JaguarExecuteNew() this is always true...
+ {
+ uint8 * current_line_buffer = (uint8 *)&tomRam8[0x1800];
+ uint8 bgHI = tomRam8[BG], bgLO = tomRam8[BG + 1];
+
+ // Clear line buffer with BG
+ if (GET16(tomRam8, VMODE) & BGEN) // && (CRY or RGB16)...
+ for(uint32 i=0; i<720; i++)
+ *current_line_buffer++ = bgHI, *current_line_buffer++ = bgLO;
+
+// OPProcessList(scanline, render);
+//This seems to take care of it...
+ OPProcessList(scanline, inActiveDisplayArea);
+ }
+ }
+#endif
// Try to take PAL into account...
// offset &= 0xFF3FFF;
#ifdef TOM_DEBUG
- WriteLog("TOM: Reading byte at %06X\n", offset);
+ WriteLog("TOM: Reading byte at %06X for %s\n", offset, whoName[who]);
#endif
if ((offset >= GPU_CONTROL_RAM_BASE) && (offset < GPU_CONTROL_RAM_BASE+0x20))
//???Is this needed???
// offset &= 0xFF3FFF;
#ifdef TOM_DEBUG
- WriteLog("TOM: Reading word at %06X\n", offset);
+ WriteLog("TOM: Reading word at %06X for %s\n", offset, whoName[who]);
#endif
if (offset >= 0xF02000 && offset <= 0xF020FF)
WriteLog("TOM: Read attempted from GPU register file by %s (unimplemented)!\n", whoName[who]);
if (offset == 0xF000E0)
{
+ // For reading, should only return the lower 5 bits...
uint16 data = (tom_jerry_int_pending << 4) | (tom_timer_int_pending << 3)
| (tom_object_int_pending << 2) | (tom_gpu_int_pending << 1)
| (tom_video_int_pending << 0);
return (TOMReadByte(offset, who) << 8) | TOMReadByte(offset + 1, who);
}
+#define TOM_STRICT_MEMORY_ACCESS
//
// TOM byte access (write)
//
void TOMWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/)
{
+#ifdef TOM_DEBUG
+ WriteLog("TOM: Writing byte %02X at %06X", data, offset);
+#endif
//???Is this needed???
// Perhaps on the writes--32-bit writes that is! And masked with FF7FFF...
+#ifndef TOM_STRICT_MEMORY_ACCESS
offset &= 0xFF3FFF;
-
+#else
+ // "Fast" (32-bit only) write access to the GPU
+// if ((offset >= 0xF0A100) && (offset <= 0xF0BFFF))
+ if ((offset >= 0xF08000) && (offset <= 0xF0BFFF))
+ offset &= 0xFF7FFF;
+#endif
#ifdef TOM_DEBUG
- WriteLog("TOM: Writing byte %02X at %06X\n", data, offset);
+ WriteLog(" -->[%06X] by %s\n", offset, whoName[who]);
+#endif
+
+#ifdef TOM_STRICT_MEMORY_ACCESS
+ // Sanity check ("Aww, there ain't no Sanity Clause...")
+ if ((offset < 0xF00000) || (offset > 0xF03FFF))
+ return;
#endif
if ((offset >= GPU_CONTROL_RAM_BASE) && (offset < GPU_CONTROL_RAM_BASE+0x20))
//
void TOMWriteWord(uint32 offset, uint16 data, uint32 who/*=UNKNOWN*/)
{
-//???Is this needed???
+#ifdef TOM_DEBUG
+ WriteLog("TOM: Writing byte %04X at %06X", data, offset);
+#endif
+//???Is this needed??? Yes, but we need to be more vigilant than this.
+#ifndef TOM_STRICT_MEMORY_ACCESS
offset &= 0xFF3FFF;
-
+#else
+ // "Fast" (32-bit only) write access to the GPU
+// if ((offset >= 0xF0A100) && (offset <= 0xF0BFFF))
+ if ((offset >= 0xF08000) && (offset <= 0xF0BFFF))
+ offset &= 0xFF7FFF;
+#endif
#ifdef TOM_DEBUG
- WriteLog("TOM: Writing word %04X at %06X\n", data, offset);
+ WriteLog(" -->[%06X] by %s\n", offset, whoName[who]);
+#endif
+
+#ifdef TOM_STRICT_MEMORY_ACCESS
+ // Sanity check
+ if ((offset < 0xF00000) || (offset > 0xF03FFF))
+ return;
#endif
+
if (offset == 0xF00000 + MEMCON1)
WriteLog("TOM: Memory Configuration 1 written by %s: %04X\n", whoName[who], data);
if (offset == 0xF00000 + MEMCON2)
tom_timer_int_pending = 0;
if (data & 0x1000)
tom_jerry_int_pending = 0;
+
+// return;
}
else if ((offset >= 0xF02200) && (offset <= 0xF0229F))
{
// Writing to one CLUT writes to the other
offset &= 0x5FF; // Mask out $F00600 (restrict to $F00400-5FF)
// Watch out for unaligned writes here! (Not fixed yet)
+#warning "!!! Watch out for unaligned writes here !!! FIX !!!"
SET16(tomRam8, offset, data);
SET16(tomRam8, offset + 0x200, data);
}
if (offset == 0x2E || offset == 0x36 || offset == 0x54)
data &= 0x03FF; // These are all 10-bit registers
- TOMWriteByte(offset, data >> 8, who);
- TOMWriteByte(offset+1, data & 0xFF, who);
+// Fix a lockup bug... :-P
+ TOMWriteByte(0xF00000 | offset, data >> 8, who);
+ TOMWriteByte(0xF00000 | (offset+1), data & 0xFF, who);
if (offset == VDB)
WriteLog("TOM: Vertical Display Begin written by %s: %u\n", whoName[who], data);
WriteLog("TOM: Horizontal Blank End written by %s: %u\n", whoName[who], data);
if (offset == VMODE)
WriteLog("TOM: Video Mode written by %s: %04X. PWIDTH = %u, MODE = %s, flags:%s%s (VC = %u)\n", whoName[who], data, ((data >> 9) & 0x07) + 1, videoMode_to_str[(data & MODE) >> 1], (data & BGEN ? " BGEN" : ""), (data & VARMOD ? " VARMOD" : ""), GET16(tomRam8, VC));
+if (offset == PIT0)
+ WriteLog("TOM: PIT0 written by %s: %u\n", whoName[who], data);
+if (offset == PIT1)
+ WriteLog("TOM: PIT1 written by %s: %u\n", whoName[who], data);
+//if (offset == INT1)
+// WriteLog("TOM: CPU Interrupt Control written by %s: $%04X (%s%s%s%s%s)\n", whoName[who], data, (data & 0x01 ? "Video" : ""), (data & 0x02 ? " GPU" : ""), (data & 0x04 ? " OP" : ""), (data & 0x08 ? " TOMPIT" : ""), (data & 0x10 ? " Jerry" : ""));
// detect screen resolution changes
//This may go away in the future, if we do the virtualized screen thing...
//This may go away soon!
+// TOM Shouldn't be mucking around with this, it's up to the host system to properly
+// handle this kind of crap.
+// NOTE: This is needed somehow, need to get rid of the dependency on this crap.
+#warning "!!! Need to get rid of this dependency !!!"
+#if 1
if ((offset >= 0x28) && (offset <= 0x4F))
{
uint32 width = TOMGetVideoModeWidth(), height = TOMGetVideoModeHeight();
// ResizeScreen(tomWidth, tomHeight);
}
}
+#endif
}
int TOMIRQEnabled(int irq)
GPUSetIRQLine(GPUIRQ_TIMER, ASSERT_LINE); // GPUSetIRQLine does the 'IRQ enabled' checking
if (TOMIRQEnabled(IRQ_TIMER))
- m68k_set_irq(7); // Cause a 68000 NMI...
+ m68k_set_irq(2); // Cause a 68000 IPL 2...
TOMResetPIT();
}
// if (INT1_WREG & 0x08)
if (TOMIRQEnabled(IRQ_TIMER))
- m68k_set_irq(7); // Generate 68K NMI
+ m68k_set_irq(2); // Generate a 68K IPL 2...
TOMResetPIT();
}
projects / virtualjaguar / blobdiff