// F00028 W ----xxxx xxxxxxxx VMODE - video mode
// W ----xxx- -------- (PWIDTH1-8 - width of pixel in video clock cycles)
// W -------x -------- (VARMOD - enable variable color resolution)
-// W -------- x------- (BGEN - clear line buffere to BG color)
+// W -------- x------- (BGEN - clear line buffer to BG color)
// W -------- -x------ (CSYNC - enable composite sync on VSYNC)
// W -------- --x----- (BINC - local border color if INCEN)
// W -------- ---x---- (INCEN - encrustation enable)
// F0211C W -------- -------x G_DIVCTRL - divide unit control
// W -------- -------x (DIV_OFFSET - 1=16.16 divide, 0=32-bit divide)
// ------------------------------------------------------------
+// BLITTER REGISTERS
+// ------------------------------------------------------------
+// F02200-F022FF R/W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx Blitter registers
+// F02200 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A1_BASE - A1 base register
+// F02204 W -------- ---xxxxx -xxxxxxx xxxxx-xx A1_FLAGS - A1 flags register
+// W -------- ---x---- -------- -------- (YSIGNSUB - invert sign of Y delta)
+// W -------- ----x--- -------- -------- (XSIGNSUB - invert sign of X delta)
+// W -------- -----x-- -------- -------- (Y add control)
+// W -------- ------xx -------- -------- (X add control)
+// W -------- -------- -xxxxxx- -------- (width in 6-bit floating point)
+// W -------- -------- -------x xx------ (ZOFFS1-6 - Z data offset)
+// W -------- -------- -------- --xxx--- (PIXEL - pixel size)
+// W -------- -------- -------- ------xx (PITCH1-4 - data phrase pitch)
+// F02208 W -xxxxxxx xxxxxxxx -xxxxxxx xxxxxxxx A1_CLIP - A1 clipping size
+// W -xxxxxxx xxxxxxxx -------- -------- (height)
+// W -------- -------- -xxxxxxx xxxxxxxx (width)
+// F0220C R/W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A1_PIXEL - A1 pixel pointer
+// R/W xxxxxxxx xxxxxxxx -------- -------- (Y pixel value)
+// R/W -------- -------- xxxxxxxx xxxxxxxx (X pixel value)
+// F02210 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A1_STEP - A1 step value
+// W xxxxxxxx xxxxxxxx -------- -------- (Y step value)
+// W -------- -------- xxxxxxxx xxxxxxxx (X step value)
+// F02214 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A1_FSTEP - A1 step fraction value
+// W xxxxxxxx xxxxxxxx -------- -------- (Y step fraction value)
+// W -------- -------- xxxxxxxx xxxxxxxx (X step fraction value)
+// F02218 R/W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A1_FPIXEL - A1 pixel pointer fraction
+// R/W xxxxxxxx xxxxxxxx -------- -------- (Y pixel fraction value)
+// R/W -------- -------- xxxxxxxx xxxxxxxx (X pixel fraction value)
+// F0221C W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A1_INC - A1 increment
+// W xxxxxxxx xxxxxxxx -------- -------- (Y increment)
+// W -------- -------- xxxxxxxx xxxxxxxx (X increment)
+// F02220 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A1_FINC - A1 increment fraction
+// W xxxxxxxx xxxxxxxx -------- -------- (Y increment fraction)
+// W -------- -------- xxxxxxxx xxxxxxxx (X increment fraction)
+// F02224 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A2_BASE - A2 base register
+// F02228 W -------- ---xxxxx -xxxxxxx xxxxx-xx A2_FLAGS - A2 flags register
+// W -------- ---x---- -------- -------- (YSIGNSUB - invert sign of Y delta)
+// W -------- ----x--- -------- -------- (XSIGNSUB - invert sign of X delta)
+// W -------- -----x-- -------- -------- (Y add control)
+// W -------- ------xx -------- -------- (X add control)
+// W -------- -------- -xxxxxx- -------- (width in 6-bit floating point)
+// W -------- -------- -------x xx------ (ZOFFS1-6 - Z data offset)
+// W -------- -------- -------- --xxx--- (PIXEL - pixel size)
+// W -------- -------- -------- ------xx (PITCH1-4 - data phrase pitch)
+// F0222C W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A2_MASK - A2 window mask
+// F02230 R/W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A2_PIXEL - A2 pixel pointer
+// R/W xxxxxxxx xxxxxxxx -------- -------- (Y pixel value)
+// R/W -------- -------- xxxxxxxx xxxxxxxx (X pixel value)
+// F02234 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx A2_STEP - A2 step value
+// W xxxxxxxx xxxxxxxx -------- -------- (Y step value)
+// W -------- -------- xxxxxxxx xxxxxxxx (X step value)
+// F02238 W -xxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_CMD - command register
+// W -x------ -------- -------- -------- (SRCSHADE - modify source intensity)
+// W --x----- -------- -------- -------- (BUSHI - hi priority bus)
+// W ---x---- -------- -------- -------- (BKGWREN - writeback destination)
+// W ----x--- -------- -------- -------- (DCOMPEN - write inhibit from data comparator)
+// W -----x-- -------- -------- -------- (BCOMPEN - write inhibit from bit coparator)
+// W ------x- -------- -------- -------- (CMPDST - compare dest instead of src)
+// W -------x xxx----- -------- -------- (logical operation)
+// W -------- ---xxx-- -------- -------- (ZMODE - Z comparator mode)
+// W -------- ------x- -------- -------- (ADDDSEL - select sum of src & dst)
+// W -------- -------x -------- -------- (PATDSEL - select pattern data)
+// W -------- -------- x------- -------- (TOPNEN - enable carry into top intensity nibble)
+// W -------- -------- -x------ -------- (TOPBEN - enable carry into top intensity byte)
+// W -------- -------- --x----- -------- (ZBUFF - enable Z updates in inner loop)
+// W -------- -------- ---x---- -------- (GOURD - enable gouraud shading in inner loop)
+// W -------- -------- ----x--- -------- (DSTA2 - reverses A2/A1 roles)
+// W -------- -------- -----x-- -------- (UPDA2 - add A2 step to A2 in outer loop)
+// W -------- -------- ------x- -------- (UPDA1 - add A1 step to A1 in outer loop)
+// W -------- -------- -------x -------- (UPDA1F - add A1 fraction step to A1 in outer loop)
+// W -------- -------- -------- x------- (diagnostic use)
+// W -------- -------- -------- -x------ (CLIP_A1 - clip A1 to window)
+// W -------- -------- -------- --x----- (DSTWRZ - enable dest Z write in inner loop)
+// W -------- -------- -------- ---x---- (DSTENZ - enable dest Z read in inner loop)
+// W -------- -------- -------- ----x--- (DSTEN - enables dest data read in inner loop)
+// W -------- -------- -------- -----x-- (SRCENX - enable extra src read at start of inner)
+// W -------- -------- -------- ------x- (SRCENZ - enables source Z read in inner loop)
+// W -------- -------- -------- -------x (SRCEN - enables source data read in inner loop)
+// F02238 R xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_CMD - status register
+// R xxxxxxxx xxxxxxxx -------- -------- (inner count)
+// R -------- -------- xxxxxxxx xxxxxx-- (diagnostics)
+// R -------- -------- -------- ------x- (STOPPED - when stopped in collision detect)
+// R -------- -------- -------- -------x (IDLE - when idle)
+// F0223C W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_COUNT - counters register
+// W xxxxxxxx xxxxxxxx -------- -------- (outer loop count)
+// W -------- -------- xxxxxxxx xxxxxxxx (inner loop count)
+// F02240-F02247 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_SRCD - source data register
+// F02248-F0224F W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_DSTD - destination data register
+// F02250-F02257 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_DSTZ - destination Z register
+// F02258-F0225F W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_SRCZ1 - source Z register 1
+// F02260-F02267 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_SRCZ2 - source Z register 2
+// F02268-F0226F W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_PATD - pattern data register
+// F02270 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_IINC - intensity increment
+// F02274 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_ZINC - Z increment
+// F02278 W -------- -------- -------- -----xxx B_STOP - collision control
+// W -------- -------- -------- -----x-- (STOPEN - enable blitter collision stops)
+// W -------- -------- -------- ------x- (ABORT - abort after stop)
+// W -------- -------- -------- -------x (RESUME - resume after stop)
+// F0227C W -------- xxxxxxxx xxxxxxxx xxxxxxxx B_I3 - intensity 3
+// F02280 W -------- xxxxxxxx xxxxxxxx xxxxxxxx B_I2 - intensity 2
+// F02284 W -------- xxxxxxxx xxxxxxxx xxxxxxxx B_I1 - intensity 1
+// F02288 W -------- xxxxxxxx xxxxxxxx xxxxxxxx B_I0 - intensity 0
+// F0228C W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_Z3 - Z3
+// F02290 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_Z2 - Z2
+// F02294 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_Z1 - Z1
+// F02298 W xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx B_Z0 - Z0
+// ------------------------------------------------------------
-#ifndef __PORT__
-#include <windows.h>
-#endif
#include <SDL.h>
-#include "SDLptc.h"
#include "tom.h"
#include "gpu.h"
#include "objectp.h"
#include "cry2rgb.h"
+// TOM registers (offset from $F00000)
-extern uint32 jaguar_mainRom_crc32;
-
-//This can be defined in the makefile as well...
-//#define TOM_DEBUG
-
-extern Console console;
-extern Surface * surface;
-
-// This makes sense IFF it's being used in an endian friendly way. Currently, it's not.
-//#define SWAP_32_ALL(A) ((SWAP_16(A>>16))|(SWAP_16(A<<16)))
-//#define SWAP_32(A) ((A>>16)|(A<<16))
-//#define SWAP_16(A) ((A>>8)|(A<<8))
-// These are more endian friendly...
-#define SET16(addr, val) tom_ram_8[addr] = ((val) & 0xFF00) >> 8, tom_ram_8[addr+1] = (val) & 0x00FF
-#define GET16(addr) (tom_ram_8[addr] << 8) | tom_ram_8[addr+1]
-
-static uint8 * tom_ram_8;
-// This is just braindead and wrong!
-//static uint16 * tom_ram_16;
-//static uint32 * tom_ram_32;
-
-/*
-#define MEMCON1 tom_ram_16[0]
-#define MEMCON2 tom_ram_16[1]
-#define VMODE tom_ram_16[0x28>>1]
-#define VBB tom_ram_16[0x40>>1]
-#define VBE tom_ram_16[0x42>>1]
-#define VDB tom_ram_16[0x46>>1]
-#define VDE tom_ram_16[0x48>>1]
-
-#define BG tom_ram_16[0x58>>1]
-
-#define HBB tom_ram_16[0x30>>1]
-#define HBE tom_ram_16[0x32>>1]
-#define HDB tom_ram_16[0x38>>1]
-#define HDE tom_ram_16[0x3C>>1]
-
-#define HP tom_ram_16[0x2E>>1]
-#define VP tom_ram_16[0x3E>>1]
-#define VS tom_ram_16[0x44>>1]
-
-#define BKGCOLOR tom_ram_16[0x58>>1]
-*/
#define MEMCON1 0x00
#define MEMCON2 0x02
+#define HC 0x04
+#define VC 0x06
#define VMODE 0x28
-#define HP 0x2E
+#define MODE 0x0006 // Line buffer to video generator mode
+#define BGEN 0x0080 // Background enable (CRY & RGB16 only)
+#define VARMOD 0x0100 // Mixed CRY/RGB16 mode (only works in MODE 0!)
+#define PWIDTH 0x0E00 // Pixel width in video clock cycles (value written + 1)
+#define HP 0x2E // Values range from 1 - 1024 (value written + 1)
#define HBB 0x30
#define HBE 0x32
-#define HDB 0x38
+#define HDB1 0x38
+#define HDB2 0x3A
#define HDE 0x3C
-#define VP 0x3E
+#define VP 0x3E // Value ranges from 1 - 2048 (value written + 1)
#define VBB 0x40
#define VBE 0x42
#define VS 0x44
#define VDB 0x46
#define VDE 0x48
+#define VI 0x4E
#define BG 0x58
+#define INT1 0xE0
+//This can be defined in the makefile as well...
+//(It's easier to do it here, though...)
+//#define TOM_DEBUG
-uint32 tom_width, tom_height, tom_real_internal_width;
+extern uint32 jaguar_mainRom_crc32;
+extern uint8 objectp_running;
+static uint8 * tom_ram_8;
+uint32 tom_width, tom_height, tom_real_internal_width;
static uint32 tom_timer_prescaler;
static uint32 tom_timer_divider;
static int32 tom_timer_counter;
-
-uint32 tom_scanline;
-uint32 hblankWidthInPixels = 0;
+//uint32 tom_scanline;
+//uint32 hblankWidthInPixels = 0;
+uint16 tom_jerry_int_pending, tom_timer_int_pending, tom_object_int_pending,
+ tom_gpu_int_pending, tom_video_int_pending;
+uint16 * tom_cry_rgb_mix_lut;
static char * videoMode_to_str[8] =
- {"16 bpp CRY", "24 bpp RGB", "16 bpp DIRECT", "16 bpp RGB",
- "Mixed mode", "24 bpp RGB", "16 bpp DIRECT", "16 bpp RGB"};
-
-extern uint8 objectp_running;
+ { "16 BPP CRY", "24 BPP RGB", "16 BPP DIRECT", "16 BPP RGB",
+ "Mixed mode", "24 BPP RGB", "16 BPP DIRECT", "16 BPP RGB" };
typedef void (render_xxx_scanline_fn)(int16 *);
+// Private function prototypes
+
void tom_render_16bpp_cry_scanline(int16 * backbuffer);
void tom_render_24bpp_scanline(int16 * backbuffer);
void tom_render_16bpp_direct_scanline(int16 * backbuffer);
tom_render_16bpp_cry_rgb_mix_scanline,
tom_render_24bpp_scanline,
tom_render_16bpp_direct_scanline,
- tom_render_16bpp_rgb_scanline,
+ tom_render_16bpp_rgb_scanline
};
+
render_xxx_scanline_fn * scanline_render_stretch[]=
{
tom_render_16bpp_cry_stretch_scanline,
tom_render_16bpp_direct_stretch_scanline,
tom_render_16bpp_rgb_stretch_scanline,
};
-render_xxx_scanline_fn * scanline_render[8];
-uint16 tom_puck_int_pending;
-uint16 tom_timer_int_pending;
-uint16 tom_object_int_pending;
-uint16 tom_gpu_int_pending;
-uint16 tom_video_int_pending;
+render_xxx_scanline_fn * scanline_render[8];
-uint16 * tom_cry_rgb_mix_lut;
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
void tom_calc_cry_rgb_mix_lut(void)
{
- uint32 chrm, chrl, y;
-
- memory_malloc_secure((void **)&tom_cry_rgb_mix_lut, 0x20000, "cry/rgb mixed mode lut");
+ memory_malloc_secure((void **)&tom_cry_rgb_mix_lut, 2 * 0x10000, "CRY/RGB mixed mode LUT");
for (uint32 i=0; i<0x10000; i++)
{
- uint16 color=i;
+ uint16 color = i;
if (color & 0x01)
{
}
else
{
- chrm = (color & 0xF000) >> 12;
- chrl = (color & 0x0F00) >> 8;
- y = (color & 0x00FF);
-
- uint16 red = ((((uint32)redcv[chrm][chrl]) * y) >> 11);
- uint16 green = ((((uint32)greencv[chrm][chrl]) * y) >> 11);
- uint16 blue = ((((uint32)bluecv[chrm][chrl]) * y) >> 11);
+ uint32 chrm = (color & 0xF000) >> 12,
+ chrl = (color & 0x0F00) >> 8,
+ y = color & 0x00FF;
+ uint16 red = (((uint32)redcv[chrm][chrl]) * y) >> 11,
+ green = (((uint32)greencv[chrm][chrl]) * y) >> 11,
+ blue = (((uint32)bluecv[chrm][chrl]) * y) >> 11;
color = (red << 10) | (green << 5) | blue;
}
tom_cry_rgb_mix_lut[i] = color;
}
}
-void tom_set_pending_puck_int(void)
+void tom_set_pending_jerry_int(void)
{
- tom_puck_int_pending = 1;
+ tom_jerry_int_pending = 1;
}
void tom_set_pending_timer_int(void)
{
return tom_ram_8;
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
uint8 tom_getVideoMode(void)
{
-// uint16 vmode = SWAP_16(VMODE);
- uint16 vmode = GET16(VMODE);
- return ((vmode >> 1) & 0x03) | ((vmode & 0x100) >> 6);
+ uint16 vmode = GET16(tom_ram_8, VMODE);
+ return ((vmode & VARMOD) >> 6) | ((vmode & MODE) >> 1);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-uint16 tom_get_scanline(void)
-{
- return tom_scanline;
-}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-uint16 tom_get_hdb(void)
-{
-// return SWAP_16(HDB);
- return GET16(HDB);
-}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+//Used in only one place (and for debug purposes): OBJECTP.CPP
uint16 tom_get_vdb(void)
{
-// return SWAP_16(VBE);
- return GET16(VBE);
+// This in NOT VDB!!!
+// return GET16(tom_ram_8, VBE);
+ return GET16(tom_ram_8, VDB);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
+
//
+// 16 BPP CRY/RGB mixed mode rendering
//
-//////////////////////////////////////////////////////////////////////////////
void tom_render_16bpp_cry_rgb_mix_scanline(int16 * backbuffer)
{
- uint32 chrm, chrl, y;
-
uint16 width = tom_width;
- uint8 * current_line_buffer=(uint8 *)&tom_ram_8[0x1800];
+ uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
while (width)
{
- uint16 color;
- color = *current_line_buffer++;
- color <<= 8;
+ uint16 color = (*current_line_buffer++) << 8;
color |= *current_line_buffer++;
*backbuffer++ = tom_cry_rgb_mix_lut[color];
width--;
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
+
//
+// 16 BPP CRY mode rendering
//
-//////////////////////////////////////////////////////////////////////////////
-void tom_render_16bpp_cry_scanline(int16 *backbuffer)
+void tom_render_16bpp_cry_scanline(int16 * backbuffer)
{
- uint32 chrm, chrl, y;
+ uint16 width = tom_width;
+ uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
- uint16 width=tom_width;
- uint8 *current_line_buffer=(uint8*)&tom_ram_8[0x1800];
-
while (width)
{
- uint16 color;
- color=*current_line_buffer++;
- color<<=8;
- color|=*current_line_buffer++;
+ uint16 color = (*current_line_buffer++) << 8;
+ color |= *current_line_buffer++;
- chrm = (color & 0xF000) >> 12;
- chrl = (color & 0x0F00) >> 8;
- y = (color & 0x00FF);
+ uint32 chrm = (color & 0xF000) >> 12,
+ chrl = (color & 0x0F00) >> 8,
+ y = (color & 0x00FF);
- uint16 red = ((((uint32)redcv[chrm][chrl])*y)>>11);
- uint16 green = ((((uint32)greencv[chrm][chrl])*y)>>11);
- uint16 blue = ((((uint32)bluecv[chrm][chrl])*y)>>11);
-
+ uint16 red = (((uint32)redcv[chrm][chrl]) * y) >> 11,
+ green = (((uint32)greencv[chrm][chrl]) * y) >> 11,
+ blue = (((uint32)bluecv[chrm][chrl]) * y) >> 11;
- *backbuffer++=(red<<10)|(green<<5)|blue;
+ *backbuffer++ = (red << 10) | (green << 5) | blue;
width--;
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
+
//
+// 24 BPP mode rendering
//
-//////////////////////////////////////////////////////////////////////////////
-void tom_render_24bpp_scanline(int16 *backbuffer)
+void tom_render_24bpp_scanline(int16 * backbuffer)
{
- uint16 width=tom_width;
- uint8 *current_line_buffer=(uint8*)&tom_ram_8[0x1800];
+ uint16 width = tom_width;
+ uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
while (width)
{
- uint16 green=*current_line_buffer++;
- uint16 red=*current_line_buffer++;
- uint16 nc=*current_line_buffer++;
- uint16 blue=*current_line_buffer++;
- red>>=3;
- green>>=3;
- blue>>=3;
- *backbuffer++=(red<<10)|(green<<5)|blue;
+ uint16 green = (*current_line_buffer++) >> 3;
+ uint16 red = (*current_line_buffer++) >> 3;
+ current_line_buffer++;
+ uint16 blue = (*current_line_buffer++) >> 3;
+ *backbuffer++ = (red << 10) | (green << 5) | blue;
width--;
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
+
+//Seems to me that this is NOT a valid mode--the JTRM seems to imply that you would need
+//extra hardware outside of the Jaguar console to support this!
//
+// 16 BPP direct mode rendering
//
-//////////////////////////////////////////////////////////////////////////////
-void tom_render_16bpp_direct_scanline(int16 *backbuffer)
+void tom_render_16bpp_direct_scanline(int16 * backbuffer)
{
- uint16 width=tom_width;
- uint8 *current_line_buffer=(uint8*)&tom_ram_8[0x1800];
+ uint16 width = tom_width;
+ uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
while (width)
{
- uint16 color=*current_line_buffer++;
- color<<=8;
- color|=*current_line_buffer++;
- color>>=1;
- *backbuffer++=color;
+ uint16 color = (*current_line_buffer++) << 8;
+ color |= *current_line_buffer++;
+ *backbuffer++ = color >> 1;
width--;
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
+
//
+// 16 BPP RGB mode rendering
//
-//////////////////////////////////////////////////////////////////////////////
-void tom_render_16bpp_rgb_scanline(int16 *backbuffer)
+void tom_render_16bpp_rgb_scanline(int16 * backbuffer)
{
- uint16 width=tom_width;
- uint8 *current_line_buffer=(uint8*)&tom_ram_8[0x1800];
+ uint16 width = tom_width;
+ uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
while (width)
{
- uint16 color=*current_line_buffer++;
- color<<=8;
- color|=*current_line_buffer++;
- color>>=1;
- color=(color&0x007c00)|((color&0x00003e0)>>5)|((color&0x0000001f)<<5);
- *backbuffer++=color;
+ uint16 color = (*current_line_buffer++) << 8;
+ color = (color | *current_line_buffer++) >> 1;
+ color = (color&0x7C00) | ((color&0x03E0) >> 5) | ((color&0x001F) << 5);
+ *backbuffer++ = color;
width--;
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
+// This stuff may just go away by itself, especially if we do some
+// good old OpenGL goodness...
+
void tom_render_16bpp_cry_rgb_mix_stretch_scanline(int16 *backbuffer)
{
- uint32 chrm, chrl, y;
-
uint16 width=tom_width;
uint8 *current_line_buffer=(uint8*)&tom_ram_8[0x1800];
width--;
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
void tom_render_16bpp_cry_stretch_scanline(int16 *backbuffer)
{
uint32 chrm, chrl, y;
width--;
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
void tom_render_24bpp_stretch_scanline(int16 *backbuffer)
{
uint16 width=tom_width;
{
uint16 green=*current_line_buffer++;
uint16 red=*current_line_buffer++;
- uint16 nc=*current_line_buffer++;
+ /*uint16 nc=*/current_line_buffer++;
uint16 blue=*current_line_buffer++;
red>>=3;
green>>=3;
width--;
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
void tom_render_16bpp_direct_stretch_scanline(int16 *backbuffer)
{
uint16 width=tom_width;
width--;
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
void tom_render_16bpp_rgb_stretch_scanline(int16 *backbuffer)
{
uint16 width=tom_width;
width--;
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
+
//
+// Process a single scanline
//
-//////////////////////////////////////////////////////////////////////////////
-void tom_exec_scanline(int16 * backbuffer, int32 scanline, int8 render)
+void tom_exec_scanline(int16 * backbuffer, int32 scanline, bool render)
{
- UINT16 bg = GET16(BG);
- tom_scanline = scanline;
-
- jaguar_word_write(0xF00004, jaguar_word_read(0xF00004) + 1);
-
if (render)
{
uint8 * current_line_buffer = (uint8 *)&tom_ram_8[0x1800];
- uint16 * current_line_buffer_16 = (uint16 *)current_line_buffer;
+ uint8 bgHI = tom_ram_8[BG], bgLO = tom_ram_8[BG + 1];
- for(int i=0; i<tom_real_internal_width; i++)
- *current_line_buffer_16++ = bg;
+ // Clear line buffer with BG
+ if (GET16(tom_ram_8, VMODE) & BGEN) // && (CRY or RGB16)...
+ for(uint32 i=0; i<720; i++)
+ *current_line_buffer++ = bgHI, *current_line_buffer++ = bgLO;
- op_process_list(backbuffer, scanline, render);
-
- (scanline_render[tom_getVideoMode()])(backbuffer);
+ OPProcessList(scanline, render);
+ scanline_render[tom_getVideoMode()](backbuffer);
}
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
+
+uint32 TOMGetSDLScreenPitch(void)
+{
+ extern SDL_Surface * surface;
+
+ return surface->pitch;
+}
+
//
+// TOM initialization
//
-//////////////////////////////////////////////////////////////////////////////
void tom_init(void)
{
op_init();
blitter_init();
- pcm_init();
-// fprintf(log_get(),"tom_init()\n");
- memory_malloc_secure((void **)&tom_ram_8, 0x4000, "tom ram");
-// tom_ram_16 = (uint16 *)tom_ram_8;
-// tom_ram_32 = (uint32 *)tom_ram_8;
+//This should be done by JERRY! pcm_init();
+ memory_malloc_secure((void **)&tom_ram_8, 0x4000, "TOM RAM");
tom_reset();
+ // Setup the non-stretchy scanline rendering...
memcpy(scanline_render, scanline_render_normal, sizeof(scanline_render));
tom_calc_cry_rgb_mix_lut();
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-uint32 tom_getHBlankWidthInPixels(void)
+
+void tom_done(void)
{
- return hblankWidthInPixels;
+ op_done();
+//This should be done by JERRY! pcm_done();
+ blitter_done();
+ WriteLog("TOM: Resolution %i x %i %s\n", tom_getVideoModeWidth(), tom_getVideoModeHeight(),
+ videoMode_to_str[tom_getVideoMode()]);
+// WriteLog("\ntom: object processor:\n");
+// WriteLog("tom: pointer to object list: 0x%.8x\n",op_get_list_pointer());
+// WriteLog("tom: INT1=0x%.2x%.2x\n",TOMReadByte(0xf000e0),TOMReadByte(0xf000e1));
+// gpu_done();
+// dsp_done();
+ memory_free(tom_ram_8);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-uint32 tom_getVideoModeWidth(void)
+
+/*uint32 tom_getHBlankWidthInPixels(void)
{
- static uint16 onetime = 1;
-
-/* uint16 vmode = SWAP_16(VMODE);
- uint16 hdb = SWAP_16(HDB);
- uint16 hde = SWAP_16(HDE);
- uint16 hbb = SWAP_16(HBB);
- uint16 hbe = SWAP_16(HBE);*/
- uint16 vmode = GET16(VMODE);
- uint16 hdb = GET16(HDB);
- uint16 hde = GET16(HDE);
- uint16 hbb = GET16(HBB);
- uint16 hbe = GET16(HBE);
-
- int clock_cycles_per_pixel = ((vmode >> 9) & 0x07);
-
- uint32 width = 640;
- switch (clock_cycles_per_pixel)
- {
- case 0: width = 640; break;
- case 1: width = 640; break;
- case 2: width = 448; break;
- case 3: width = 320; break;
- case 4: width = 256; break;
- case 5: width = 256; break;
- case 6: width = 256; break;
- case 7: width = 320; break;
-// default: fprintf(log_get(),"%i \n",clock_cycles_per_pixel);
- }
-
- if (jaguar_mainRom_crc32 == 0x3c7bfda8)
- {
- if (width == 320)
- width += 80;
- if (width == 448)
- width -= 16;
- }
- if (hdb == 123)
- hblankWidthInPixels = 16;
- else
- hblankWidthInPixels = 0;
+ return hblankWidthInPixels;
+}*/
-// fprintf(log_get(),"hdb=%i hbe=%i\n",hdb,hbe);
- return width;
+uint32 tom_getVideoModeWidth(void)
+{
+ //These widths are pretty bogus. Should use HDB1/2 & HDE/HBB & PWIDTH to calc the width...
+ uint32 width[8] = { 1330, 665, 443, 332, 266, 222, 190, 166 };
+//Temporary, for testing Doom...
+// uint32 width[8] = { 1330, 665, 443, 332, 266, 222, 190, 332 };
+
+ // Note that the following PWIDTH values have the following pixel aspect ratios:
+ // PWIDTH = 1 -> 0.25:1 pixels (X:Y ratio)
+ // PWIDTH = 2 -> 0.50:1 pixels
+ // PWIDTH = 3 -> 0.75:1 pixels
+ // PWIDTH = 4 -> 1.00:1 pixels
+ // PWIDTH = 5 -> 1.25:1 pixels
+ // PWIDTH = 6 -> 1.50:1 pixels
+ // PWIDTH = 7 -> 1.75:1 pixels
+ // PWIDTH = 8 -> 2.00:1 pixels
+
+ // Also note that the JTRM says that PWIDTH of 4 gives pixels that are "about" square--
+ // this implies that the other modes have pixels that are *not* square!
+ // Also, I seriously doubt that you will see any games that use PWIDTH = 1!
+
+ // NOTE: Even though the PWIDTH value is + 1, here we're using a zero-based index and
+ // so we don't bother to add one...
+// return width[(GET16(tom_ram_8, VMODE) & PWIDTH) >> 9];
+
+ // Now, we just calculate it...
+ uint16 hdb1 = GET16(tom_ram_8, HDB1), hde = GET16(tom_ram_8, HDE),
+ hbb = GET16(tom_ram_8, HBB), pwidth = ((GET16(tom_ram_8, VMODE) & PWIDTH) >> 9) + 1;
+ return ((hbb < hde ? hbb : hde) - hdb1) / pwidth;
+
+// More speculating...
+// According to the JTRM, the number of potential pixels across is given by the
+// Horizontal Period (HP - in NTSC this is 845). The Horizontal Count counts from
+// zero to this value twice per scanline (the high bit is set on the second count).
+// HBE and HBB define the absolute "black" limits of the screen, while HDB1/2 and
+// HDE determine the extent of the OP "on" time. I.e., when the OP is turned on by
+// HDB1, it starts fetching the line from position 0 in LBUF.
+
+// The trick, it would seem, is to figure out how long the typical visible scanline
+// of a TV is in HP ticks and limit the visible area to that (divided by PWIDTH, of
+// course). Using that length, we can establish an "absolute left display limit" with
+// which to measure HBB & HDB1/2 against when rendering LBUF (i.e., if HDB1 is 20 ticks
+// to the right of the ALDL and PWIDTH is 4, then start writing the LBUF starting at
+// backbuffer + 5 pixels).
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
+// *** SPECULATION ***
+// It might work better to virtualize the height settings, i.e., set the vertical
+// height at 240 lines and clip using the VDB and VDE/VP registers...
+// Same with the width...
+
uint32 tom_getVideoModeHeight(void)
{
-/* uint16 vmode = SWAP_16(VMODE);
- uint16 vdb = SWAP_16(VDB);
- uint16 vde = SWAP_16(VDE);
- uint16 vbb = SWAP_16(VBB);
- uint16 vbe = SWAP_16(VBE);*/
- uint16 vmode = GET16(VMODE);
- uint16 vdb = GET16(VDB);
- uint16 vde = GET16(VDE);
- uint16 vbb = GET16(VBB);
- uint16 vbe = GET16(VBE);
+// uint16 vmode = GET16(tom_ram_8, VMODE);
+ uint16 vbe = GET16(tom_ram_8, VBE);
+ uint16 vbb = GET16(tom_ram_8, VBB);
+// uint16 vdb = GET16(tom_ram_8, VDB);
+// uint16 vde = GET16(tom_ram_8, VDE);
+// uint16 vp = GET16(tom_ram_8, VP);
- if (vde == 65535)
- vde = vbb;
-
- uint32 screen_height = (vde/*-vdb*/) >> 1;
- return 227;//WAS:screen_height);
+/* if (vde == 0xFFFF)
+ vde = vbb;//*/
+
+// return 227;//WAS:(vde/*-vdb*/) >> 1;
+ // The video mode height probably works this way:
+ // VC counts from 0 to VP. VDB starts the OP. Either when
+ // VDE is reached or VP, the OP is stopped. Let's try it...
+ // Also note that we're conveniently ignoring interlaced display modes...!
+// return ((vde > vp ? vp : vde) - vdb) >> 1;
+// return ((vde > vbb ? vbb : vde) - vdb) >> 1;
+//Let's try from the Vertical Blank interval...
+//Seems to work OK!
+ return (vbb - vbe) >> 1; // Again, doesn't take interlacing into account...
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//
+
//
+// TOM reset code
+// Now PAL friendly!
//
-//////////////////////////////////////////////////////////////////////////////
void tom_reset(void)
{
-// fprintf(log_get(),"tom_reset()\n");
+ extern bool hardwareTypeNTSC;
+
op_reset();
blitter_reset();
- pcm_reset();
+//This should be done by JERRY! pcm_reset();
memset(tom_ram_8, 0x00, 0x4000);
-// tom_ram_8[MEMCON1] = 0x18, tom_ram_8[MEMCON1+1] = 0x61;
- SET16(MEMCON1, 0x1861);
-// tom_ram_8[MEMCON2] = 0x00, tom_ram_8[MEMCON2+1] = 0x00;
- SET16(MEMCON2, 0x0000);
-// tom_ram_8[VMODE] = 0x06, tom_ram_8[VMODE+1] = 0xC1;
- SET16(VMODE, 0x06C1);
-// tom_ram_8[VP] = (523 & 0xFF00) >> 8, tom_ram_8[VP+1] = 523 & 0x00FF; // 525-2
- SET16(VP, 523);
-// tom_ram_8[HP] = SWAP_16(844);
- SET16(HP, 844);
-// tom_ram_8[VS] = SWAP_16(523-6);
- SET16(VS, 523 - 6);
-// tom_ram_8[VBB] = SWAP_16(434);
- SET16(VBB, 434);
-// tom_ram_8[VBE] = SWAP_16(24);
- SET16(VBE, 24);
-// tom_ram_8[HBB] = SWAP_16(689+0x400);
- SET16(HBB, 689 + 0x400);
-// tom_ram_8[HBE] = SWAP_16(125);
- SET16(HBE, 125);
-
-// tom_ram_8[VDE] = SWAP_16(65535);
- SET16(VDE, 65535);
-// tom_ram_8[VDB] = SWAP_16(28);
- SET16(VDB, 28);
-// tom_ram_8[HDB] = SWAP_16(166);
- SET16(HDB, 166);
-// tom_ram_8[HDE] = SWAP_16(65535);
- SET16(HDE, 65535);
+
+ if (hardwareTypeNTSC)
+ {
+ SET16(tom_ram_8, MEMCON1, 0x1861);
+ SET16(tom_ram_8, MEMCON2, 0x35CC);
+ SET16(tom_ram_8, HP, 844); // Horizontal Period (1-based; HP=845)
+ SET16(tom_ram_8, HBB, 1713); // Horizontal Blank Begin
+ SET16(tom_ram_8, HBE, 125); // Horizontal Blank End
+ SET16(tom_ram_8, HDE, 1665); // Horizontal Display End
+ SET16(tom_ram_8, HDB1, 203); // Horizontal Display Begin 1
+ SET16(tom_ram_8, VP, 523); // Vertical Period (1-based; in this case VP = 524)
+ SET16(tom_ram_8, VBE, 24); // Vertical Blank End
+ SET16(tom_ram_8, VDB, 38); // Vertical Display Begin
+ SET16(tom_ram_8, VDE, 518); // Vertical Display End
+ SET16(tom_ram_8, VBB, 500); // Vertical Blank Begin
+ SET16(tom_ram_8, VS, 517); // Vertical Sync
+ SET16(tom_ram_8, VMODE, 0x06C1);
+ }
+ else // PAL Jaguar
+ {
+ SET16(tom_ram_8, MEMCON1, 0x1861);
+ SET16(tom_ram_8, MEMCON2, 0x35CC);
+ SET16(tom_ram_8, HP, 850); // Horizontal Period
+ SET16(tom_ram_8, HBB, 1711); // Horizontal Blank Begin
+ SET16(tom_ram_8, HBE, 158); // Horizontal Blank End
+ SET16(tom_ram_8, HDE, 1665); // Horizontal Display End
+ SET16(tom_ram_8, HDB1, 203); // Horizontal Display Begin 1
+ SET16(tom_ram_8, VP, 623); // Vertical Period (1-based; in this case VP = 624)
+ SET16(tom_ram_8, VBE, 34); // Vertical Blank End
+ SET16(tom_ram_8, VDB, 38); // Vertical Display Begin
+ SET16(tom_ram_8, VDE, 518); // Vertical Display End
+ SET16(tom_ram_8, VBB, 600); // Vertical Blank Begin
+ SET16(tom_ram_8, VS, 618); // Vertical Sync
+ SET16(tom_ram_8, VMODE, 0x06C1);
+ }
tom_width = tom_real_internal_width = 0;
tom_height = 0;
- tom_scanline = 0;
-
-// hblankWidthInPixels = (tom_ram_8[HDB] << 8) | tom_ram_8[HDB+1];
-// hblankWidthInPixels >>= 1;
- hblankWidthInPixels = (GET16(HDB)) >> 1;
+// tom_scanline = 0;
- tom_puck_int_pending = 0;
+//This is WRONG
+// hblankWidthInPixels = GET16(tom_ram_8, HDB1) >> 1;
+
+ tom_jerry_int_pending = 0;
tom_timer_int_pending = 0;
tom_object_int_pending = 0;
tom_gpu_int_pending = 0;
tom_timer_divider = 0;
tom_timer_counter = 0;
memcpy(scanline_render, scanline_render_normal, sizeof(scanline_render));
-}
+}
//
// TOM byte access (read)
//
-
-unsigned tom_byte_read(unsigned int offset)
+uint8 TOMReadByte(uint32 offset, uint32 who/*=UNKNOWN*/)
{
- offset &= 0xFF3FFF;
+//???Is this needed???
+// It seems so. Perhaps it's the +$8000 offset being written to (32-bit interface)?
+// However, the 32-bit interface is WRITE ONLY, so that can't be it...
+// Also, the 68K CANNOT make use of the 32-bit interface, since its bus width is only 16-bits...
+// offset &= 0xFF3FFF;
#ifdef TOM_DEBUG
- fprintf(log_get(), "TOM: Reading byte at %06X\n", offset);
+ WriteLog("TOM: Reading byte at %06X\n", offset);
#endif
- if ((offset >= gpu_control_ram_base) && (offset < gpu_control_ram_base+0x20))
- return gpu_byte_read(offset);
- else if ((offset >= gpu_work_ram_base) && (offset < gpu_work_ram_base+0x1000))
- return gpu_byte_read(offset);
+ if ((offset >= GPU_CONTROL_RAM_BASE) && (offset < GPU_CONTROL_RAM_BASE+0x20))
+ return GPUReadByte(offset, who);
+ else if ((offset >= GPU_WORK_RAM_BASE) && (offset < GPU_WORK_RAM_BASE+0x1000))
+ return GPUReadByte(offset, who);
else if ((offset >= 0xF00010) && (offset < 0xF00028))
- return op_byte_read(offset);
+ return OPReadByte(offset, who);
else if ((offset >= 0xF02200) && (offset < 0xF022A0))
- return blitter_byte_read(offset);
+ return BlitterReadByte(offset, who);
else if (offset == 0xF00050)
return tom_timer_prescaler >> 8;
else if (offset == 0xF00051)
//
// TOM word access (read)
//
-
-unsigned tom_word_read(unsigned int offset)
+uint16 TOMReadWord(uint32 offset, uint32 who/*=UNKNOWN*/)
{
- offset &= 0xFF3FFF;
+//???Is this needed???
+// offset &= 0xFF3FFF;
#ifdef TOM_DEBUG
- fprintf(log_get(), "TOM: Reading word at %06X\n", offset);
+ WriteLog("TOM: Reading word at %06X\n", offset);
#endif
+if (offset >= 0xF02000 && offset <= 0xF020FF)
+ WriteLog("TOM: Read attempted from GPU register file by %s (unimplemented)!\n", whoName[who]);
+
if (offset == 0xF000E0)
{
- uint16 data = (tom_puck_int_pending << 4) | (tom_timer_int_pending << 3)
+ 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);
- //fprintf(log_get(),"tom: interrupt status is 0x%.4x \n",data);
+ //WriteLog("tom: interrupt status is 0x%.4x \n",data);
return data;
}
- else if (offset == 0xF00006)
- return (tom_scanline << 1) + 1;
- else if ((offset >= gpu_control_ram_base) && (offset < gpu_control_ram_base+0x20))
- return gpu_word_read(offset);
- else if ((offset >= gpu_work_ram_base) && (offset < gpu_work_ram_base+0x1000))
- return gpu_word_read(offset);
+//Shoud be handled by the jaguar main loop now... And it is! ;-)
+/* else if (offset == 0xF00006) // VC
+ // What if we're in interlaced mode?
+ // According to docs, in non-interlace mode VC is ALWAYS even...
+// return (tom_scanline << 1);// + 1;
+//But it's causing Rayman to be fucked up... Why???
+//Because VC is even in NI mode when calling the OP! That's why!
+ return (tom_scanline << 1) + 1;//*/
+ else if ((offset >= GPU_CONTROL_RAM_BASE) && (offset < GPU_CONTROL_RAM_BASE+0x20))
+ return GPUReadWord(offset, who);
+ else if ((offset >= GPU_WORK_RAM_BASE) && (offset < GPU_WORK_RAM_BASE+0x1000))
+ return GPUReadWord(offset, who);
else if ((offset >= 0xF00010) && (offset < 0xF00028))
- return op_word_read(offset);
+ return OPReadWord(offset, who);
else if ((offset >= 0xF02200) && (offset < 0xF022A0))
- return blitter_word_read(offset);
+ return BlitterReadWord(offset, who);
else if (offset == 0xF00050)
return tom_timer_prescaler;
else if (offset == 0xF00052)
return tom_timer_divider;
offset &= 0x3FFF;
-
-// uint16 data = tom_byte_read(offset);
-// data <<= 8;
-// data |= tom_byte_read(offset+1);
-
-// return data;
- return (tom_byte_read(offset) << 8) | tom_byte_read(offset+1);
+ return (TOMReadByte(offset, who) << 8) | TOMReadByte(offset + 1, who);
}
//
// TOM byte access (write)
//
-
-void tom_byte_write(unsigned offset, unsigned data)
+void TOMWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/)
{
+//???Is this needed???
+// Perhaps on the writes--32-bit writes that is! And masked with FF7FFF...
offset &= 0xFF3FFF;
#ifdef TOM_DEBUG
- fprintf(log_get(), "TOM: Writing byte %02X at %06X\n", data, offset);
+ WriteLog("TOM: Writing byte %02X at %06X\n", data, offset);
#endif
- if ((offset >= gpu_control_ram_base) && (offset < gpu_control_ram_base+0x20))
+ if ((offset >= GPU_CONTROL_RAM_BASE) && (offset < GPU_CONTROL_RAM_BASE+0x20))
{
- gpu_byte_write(offset, data);
+ GPUWriteByte(offset, data, who);
return;
}
- else if ((offset >= gpu_work_ram_base) && (offset < gpu_work_ram_base+0x1000))
+ else if ((offset >= GPU_WORK_RAM_BASE) && (offset < GPU_WORK_RAM_BASE+0x1000))
{
- gpu_byte_write(offset, data);
+ GPUWriteByte(offset, data, who);
return;
}
else if ((offset >= 0xF00010) && (offset < 0xF00028))
{
- op_byte_write(offset, data);
+ OPWriteByte(offset, data, who);
return;
}
else if ((offset >= 0xF02200) && (offset < 0xF022A0))
{
- blitter_byte_write(offset, data);
+ BlitterWriteByte(offset, data, who);
return;
}
else if (offset == 0xF00050)
tom_reset_timer();
return;
}
+ else if (offset >= 0xF00400 && offset <= 0xF007FF) // CLUT (A & B)
+ {
+ // Writing to one CLUT writes to the other
+ offset &= 0x5FF; // Mask out $F00600 (restrict to $F00400-5FF)
+ tom_ram_8[offset] = data, tom_ram_8[offset + 0x200] = data;
+ }
tom_ram_8[offset & 0x3FFF] = data;
}
//
// TOM word access (write)
//
-
-void tom_word_write(unsigned offset, unsigned data)
+void TOMWriteWord(uint32 offset, uint16 data, uint32 who/*=UNKNOWN*/)
{
+//???Is this needed???
offset &= 0xFF3FFF;
#ifdef TOM_DEBUG
- fprintf(log_get(), "TOM: Writing word %04X at %06X\n", data, offset);
+ WriteLog("TOM: Writing word %04X at %06X\n", data, offset);
#endif
-
- if ((offset >= gpu_control_ram_base) && (offset < gpu_control_ram_base+0x20))
+if (offset == 0xF00000 + MEMCON1)
+ WriteLog("TOM: Memory Configuration 1 written by %s: %04X\n", whoName[who], data);
+if (offset == 0xF00000 + MEMCON2)
+ WriteLog("TOM: Memory Configuration 2 written by %s: %04X\n", whoName[who], data);
+if (offset >= 0xF02000 && offset <= 0xF020FF)
+ WriteLog("TOM: Write attempted to GPU register file by %s (unimplemented)!\n", whoName[who]);
+
+ if ((offset >= GPU_CONTROL_RAM_BASE) && (offset < GPU_CONTROL_RAM_BASE+0x20))
{
- gpu_word_write(offset, data);
+ GPUWriteWord(offset, data, who);
return;
}
- else if ((offset >= gpu_work_ram_base) && (offset < gpu_work_ram_base+0x1000))
+ else if ((offset >= GPU_WORK_RAM_BASE) && (offset < GPU_WORK_RAM_BASE+0x1000))
{
- gpu_word_write(offset, data);
+ GPUWriteWord(offset, data, who);
return;
}
- else if ((offset >= 0xF00000) && (offset < 0xF00002))
+//What's so special about this?
+/* else if ((offset >= 0xF00000) && (offset < 0xF00002))
{
- tom_byte_write(offset, (data>>8));
- tom_byte_write(offset+1, (data&0xFF));
- }
+ TOMWriteByte(offset, data >> 8);
+ TOMWriteByte(offset+1, data & 0xFF);
+ }*/
else if ((offset >= 0xF00010) && (offset < 0xF00028))
{
- op_word_write(offset, data);
+ OPWriteWord(offset, data, who);
return;
}
else if (offset == 0xF00050)
}
else if (offset == 0xF000E0)
{
+//Check this out...
if (data & 0x0100)
tom_video_int_pending = 0;
if (data & 0x0200)
if (data & 0x0800)
tom_timer_int_pending = 0;
if (data & 0x1000)
- tom_puck_int_pending = 0;
+ tom_jerry_int_pending = 0;
}
- else if ((offset >= 0xF02200) && (offset < 0xF022A0))
+ else if ((offset >= 0xF02200) && (offset <= 0xF0229F))
{
- blitter_word_write(offset, data);
+ BlitterWriteWord(offset, data, who);
return;
}
+ else if (offset >= 0xF00400 && offset <= 0xF007FE) // CLUT (A & B)
+ {
+ // 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)
+ SET16(tom_ram_8, offset, data), SET16(tom_ram_8, offset + 0x200, data);
+ }
offset &= 0x3FFF;
- if (offset == 0x28)
+ if (offset == 0x28) // VMODE (Why? Why not OBF?)
objectp_running = 1;
- tom_byte_write(offset, data >> 8);
- tom_byte_write(offset+1, data & 0xFF);
+ if (offset >= 0x30 && offset <= 0x4E)
+ data &= 0x07FF; // These are (mostly) 11-bit registers
+ 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);
+
+if (offset == VDB)
+ WriteLog("TOM: Vertical Display Begin written by %s: %u\n", whoName[who], data);
+if (offset == VDE)
+ WriteLog("TOM: Vertical Display End written by %s: %u\n", whoName[who], data);
+if (offset == VP)
+ WriteLog("TOM: Vertical Period written by %s: %u (%sinterlaced)\n", whoName[who], data, (data & 0x01 ? "non-" : ""));
+if (offset == HDB1)
+ WriteLog("TOM: Horizontal Display Begin 1 written by %s: %u\n", whoName[who], data);
+if (offset == HDE)
+ WriteLog("TOM: Horizontal Display End written by %s: %u\n", whoName[who], data);
+if (offset == HP)
+ WriteLog("TOM: Horizontal Period written by %s: %u (+1*2 = %u)\n", whoName[who], data, (data + 1) * 2);
+if (offset == VBB)
+ WriteLog("TOM: Vertical Blank Begin written by %s: %u\n", whoName[who], data);
+if (offset == VBE)
+ WriteLog("TOM: Vertical Blank End written by %s: %u\n", whoName[who], data);
+if (offset == VS)
+ WriteLog("TOM: Vertical Sync written by %s: %u\n", whoName[who], data);
+if (offset == VI)
+ WriteLog("TOM: Vertical Interrupt written by %s: %u\n", whoName[who], data);
+if (offset == HBB)
+ WriteLog("TOM: Horizontal Blank Begin written by %s: %u\n", whoName[who], data);
+if (offset == HBE)
+ 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(tom_ram_8, VC));
+/*#define MODE 0x0006 // Line buffer to video generator mode
+#define BGEN 0x0080 // Background enable (CRY & RGB16 only)
+#define VARMOD 0x0100 // Mixed CRY/RGB16 mode
+#define PWIDTH 0x0E00 // Pixel width in video clock cycles (value written + 1)*/
// detect screen resolution changes
+//This may go away in the future, if we do the virtualized screen thing...
if ((offset >= 0x28) && (offset <= 0x4F))
{
- int width, height;
- tom_real_internal_width = width = tom_getVideoModeWidth();
- height = tom_getVideoModeHeight();
- if (width == 640)
+ uint32 width = tom_getVideoModeWidth(), height = tom_getVideoModeHeight();
+ tom_real_internal_width = width;
+
+//This looks like an attempt to render non-square pixels (though wrong...)
+/* if (width == 640)
{
memcpy(scanline_render, scanline_render_stretch, sizeof(scanline_render));
width = 320;
}
else
- {
- memcpy(scanline_render, scanline_render_normal, sizeof(scanline_render));
- }
-
+ memcpy(scanline_render, scanline_render_normal, sizeof(scanline_render));//*/
if ((width != tom_width) || (height != tom_height))
{
- ws_audio_done();
-
+ extern SDL_Surface * surface, * mainSurface;
+ extern Uint32 mainSurfaceFlags;
static char window_title[256];
- delete surface;
- tom_width = width;
- tom_height = height;
- Format format(16, 0x007C00, 0x00003E0, 0x0000001F);
- surface = new Surface(tom_width, tom_height, format);
- console.close();
- sprintf(window_title, "Virtual Jaguar (%ix%i)", tom_width, tom_height);
- console.open(window_title, width, tom_height, format);
-
- ws_audio_init();
- ws_audio_reset();
+ tom_width = width, tom_height = height;
+ SDL_FreeSurface(surface);
+ surface = SDL_CreateRGBSurface(SDL_SWSURFACE, tom_width, tom_height,
+ 16, 0x7C00, 0x03E0, 0x001F, 0);
+ if (surface == NULL)
+ {
+ WriteLog("TOM: Could not create primary SDL surface: %s", SDL_GetError());
+ exit(1);
+ }
+
+ sprintf(window_title, "Virtual Jaguar (%i x %i)", (int)tom_width, (int)tom_height);
+//???Should we do this??? No!
+// SDL_FreeSurface(mainSurface);
+ mainSurface = SDL_SetVideoMode(tom_width, tom_height, 16, mainSurfaceFlags);
+
+ if (mainSurface == NULL)
+ {
+ WriteLog("Joystick: SDL is unable to set the video mode: %s\n", SDL_GetError());
+ exit(1);
+ }
+
+ SDL_WM_SetCaption(window_title, window_title);
}
}
}
int tom_irq_enabled(int irq)
{
- return jaguar_byte_read(0xF000E1) & (1 << irq);
+ // This is the correct byte in big endian... D'oh!
+// return jaguar_byte_read(0xF000E1) & (1 << irq);
+ return tom_ram_8[INT1 + 1/*0xE1*/] & (1 << irq);
}
-void tom_set_irq_latch(int irq, int enabled)
+//unused
+/*void tom_set_irq_latch(int irq, int enabled)
{
tom_ram_8[0xE0] = (tom_ram_8[0xE0] & (~(1<<irq))) | (enabled ? (1<<irq) : 0);
-}
+}*/
-uint16 tom_irq_control_reg(void)
+//unused
+/*uint16 tom_irq_control_reg(void)
{
return (tom_ram_8[0xE0] << 8) | tom_ram_8[0xE1];
-}
+}*/
void tom_reset_timer(void)
{
- if ((!tom_timer_prescaler) || (!tom_timer_divider))
+ if (!tom_timer_prescaler || !tom_timer_divider)
tom_timer_counter = 0;
else
+//Probably should *add* this amount to the counter to retain cycle accuracy! !!! FIX !!!
+//Also, why +1???
tom_timer_counter = (1 + tom_timer_prescaler) * (1 + tom_timer_divider);
-// fprintf(log_get(),"tom: reseting timer to 0x%.8x (%i)\n",tom_timer_counter,tom_timer_counter);
+// WriteLog("tom: reseting timer to 0x%.8x (%i)\n",tom_timer_counter,tom_timer_counter);
}
+//
+// TOM Programmable Interrupt Timer handler
+//
void tom_pit_exec(uint32 cycles)
{
if (tom_timer_counter > 0)
if (tom_timer_counter <= 0)
{
tom_set_pending_timer_int();
- gpu_set_irq_line(2, 1);
- if ((tom_irq_enabled(IRQ_TIMER)) && (jaguar_interrupt_handler_is_valid(64)))
- {
-// s68000interrupt(7, 64);
-// s68000flushInterrupts();
+ GPUSetIRQLine(GPUIRQ_TIMER, ASSERT_LINE);
+ if (tom_irq_enabled(IRQ_TIMER) && jaguar_interrupt_handler_is_valid(64))
m68k_set_irq(7); // Cause a 68000 NMI...
- }
+
tom_reset_timer();
}
}
}
-
-void tom_done(void)
-{
- fprintf(log_get(),"TOM: done() ...START\n");
- op_done();
- pcm_done();
-//This is killing the log for some reason, even though it doesn't do much of anything...
-// blitter_done();
- fprintf(log_get(), "TOM: resolution %i x %i %s\n", tom_getVideoModeWidth(), tom_getVideoModeHeight(),
- videoMode_to_str[tom_getVideoMode()]);
-// fprintf(log_get(),"\ntom: object processor:\n");
-// fprintf(log_get(),"tom: pointer to object list: 0x%.8x\n",op_get_list_pointer());
-// fprintf(log_get(),"tom: INT1=0x%.2x%.2x\n",tom_byte_read(0xf000e0),tom_byte_read(0xf000e1));
- gpu_done();
- dsp_done();
- memory_free(tom_ram_8);
- fprintf(log_get(),"TOM: done() ...END\n");
-}