//
// by cal2
// GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)
-// Cleanups by James L. Hammons
+// Cleanups/fixes by James L. Hammons
//
+bool specialLog = false;
-#define GEN_CODE
-//#define LOG_BLITS
-//#define USE_GENERIC_BLITTER
-
#include "jaguar.h"
-#define null 0
-extern int jaguar_active_memory_dumps;
-
-#define REG(A) blitter_reg_read(A)
-#define WREG(A,D) blitter_reg_write(A,D)
+#define REG(A) (((uint32)blitter_ram[(A)] << 24) | ((uint32)blitter_ram[(A)+1] << 16) \
+ | ((uint32)blitter_ram[(A)+2] << 8) | (uint32)blitter_ram[(A)+3])
+#define WREG(A,D) (blitter_ram[(A)] = ((D)>>24)&0xFF, blitter_ram[(A)+1] = ((D)>>16)&0xFF, \
+ blitter_ram[(A)+2] = ((D)>>8)&0xFF, blitter_ram[(A)+3] = (D)&0xFF)
-int start_logging = 0;
-
-static uint8 blitter_ram[0x100];
+// Blitter registers (offsets from F02200)
#define A1_BASE ((UINT32)0x00)
#define A1_FLAGS ((UINT32)0x04)
-#define A1_CLIP ((UINT32)0x08) // height and width values for clipping
-#define A1_PIXEL ((UINT32)0x0c) // integer part of the pixel (Y.i and X.i)
-#define A1_STEP ((UINT32)0x10) // integer part of the step
-#define A1_FSTEP ((UINT32)0x14) // fractionnal part of the step
-#define A1_FPIXEL ((UINT32)0x18) // fractionnal part of the pixel (Y.f and X.f)
-#define A1_INC ((UINT32)0x1C) // integer part of the increment
-#define A1_FINC ((UINT32)0x20) // fractionnal part of the increment
+#define A1_CLIP ((UINT32)0x08) // Height and width values for clipping
+#define A1_PIXEL ((UINT32)0x0C) // Integer part of the pixel (Y.i and X.i)
+#define A1_STEP ((UINT32)0x10) // Integer part of the step
+#define A1_FSTEP ((UINT32)0x14) // Fractionnal part of the step
+#define A1_FPIXEL ((UINT32)0x18) // Fractionnal part of the pixel (Y.f and X.f)
+#define A1_INC ((UINT32)0x1C) // Integer part of the increment
+#define A1_FINC ((UINT32)0x20) // Fractional part of the increment
#define A2_BASE ((UINT32)0x24)
#define A2_FLAGS ((UINT32)0x28)
-#define A2_MASK ((UINT32)0x2c) // modulo values for x and y (M.y and M.x)
-#define A2_PIXEL ((UINT32)0x30) // integer part of the pixel (no fractionnal part for A2)
-#define A2_STEP ((UINT32)0x34) // integer part of the step (no fractionnal part for A2)
+#define A2_MASK ((UINT32)0x2C) // Modulo values for x and y (M.y and M.x)
+#define A2_PIXEL ((UINT32)0x30) // Integer part of the pixel (no fractional part for A2)
+#define A2_STEP ((UINT32)0x34) // Integer part of the step (no fractional part for A2)
#define COMMAND ((UINT32)0x38)
#define PIXLINECOUNTER ((UINT32)0x3C)
#define SRCDATA ((UINT32)0x40)
#define PHRASEZ1 ((UINT32)0x94)
#define PHRASEZ0 ((UINT32)0x98)
-#define SRCEN (cmd&0x00000001)
-#define SRCENZ (cmd&0x00000002)
-#define SRCENX (cmd&0x00000004)
-#define DSTEN (cmd&0x00000008)
-#define DSTENZ (cmd&0x00000010)
-#define DSTWRZ (cmd&0x00000020)
-#define CLIPA1 (cmd&0x00000040)
-#define DSTA2 (cmd&0x00000800)
-
-#define Z_OP_INF (cmd&0x00040000)
-#define Z_OP_EQU (cmd&0x00080000)
-#define Z_OP_SUP (cmd&0x00100000)
-
-#define CMPDST (cmd&0x02000000)
-#define BCOMPEN (cmd&0x04000000)
-#define DCOMPEN (cmd&0x08000000)
-
-#define LFU_NAN (cmd&0x00200000)
-#define LFU_NA (cmd&0x00400000)
-#define LFU_AN (cmd&0x00800000)
-#define LFU_A (cmd&0x01000000)
-
-#define PATDSEL (cmd&0x00010000)
-#define INTADD (cmd&0x00020000)
-#define TOPBEN (cmd&0x00004000)
-#define TOPNEN (cmd&0x00008000)
-#define BKGWREN (cmd&0x10000000)
-#define GOURD (cmd&0x00001000)
-#define GOURZ (cmd&0x00002000)
-#define SRCSHADE (cmd&0x40000000)
+// Blitter command bits
+
+#define SRCEN (cmd & 0x00000001)
+#define SRCENZ (cmd & 0x00000002)
+#define SRCENX (cmd & 0x00000004)
+#define DSTEN (cmd & 0x00000008)
+#define DSTENZ (cmd & 0x00000010)
+#define DSTWRZ (cmd & 0x00000020)
+#define CLIPA1 (cmd & 0x00000040)
+
+#define UPDA1F (cmd & 0x00000100)
+#define UPDA1 (cmd & 0x00000200)
+#define UPDA2 (cmd & 0x00000400)
+
+#define DSTA2 (cmd & 0x00000800)
+
+#define Z_OP_INF (cmd & 0x00040000)
+#define Z_OP_EQU (cmd & 0x00080000)
+#define Z_OP_SUP (cmd & 0x00100000)
+
+#define LFU_NAN (cmd & 0x00200000)
+#define LFU_NA (cmd & 0x00400000)
+#define LFU_AN (cmd & 0x00800000)
+#define LFU_A (cmd & 0x01000000)
+
+#define CMPDST (cmd & 0x02000000)
+#define BCOMPEN (cmd & 0x04000000)
+#define DCOMPEN (cmd & 0x08000000)
+
+#define PATDSEL (cmd & 0x00010000)
+#define INTADD (cmd & 0x00020000)
+#define TOPBEN (cmd & 0x00004000)
+#define TOPNEN (cmd & 0x00008000)
+#define BKGWREN (cmd & 0x10000000)
+#define GOURD (cmd & 0x00001000)
+#define GOURZ (cmd & 0x00002000)
+#define SRCSHADE (cmd & 0x40000000)
#define XADDPHR 0
#define XADD0 2
#define XADDINC 3
-#define XSIGNSUB_A1 (REG(A1_FLAGS)&0x80000)
-#define XSIGNSUB_A2 (REG(A2_FLAGS)&0x80000)
+#define XSIGNSUB_A1 (REG(A1_FLAGS)&0x080000)
+#define XSIGNSUB_A2 (REG(A2_FLAGS)&0x080000)
#define YSIGNSUB_A1 (REG(A1_FLAGS)&0x100000)
#define YSIGNSUB_A2 (REG(A2_FLAGS)&0x100000)
-#define YADD1_A1 (REG(A1_FLAGS)&0x40000)
-#define YADD1_A2 (REG(A2_FLAGS)&0x40000)
+#define YADD1_A1 (REG(A1_FLAGS)&0x040000)
+#define YADD1_A2 (REG(A2_FLAGS)&0x040000)
+//Put 'em back, once we fix the problem!!! [KO]
// 1 bpp pixel read
#define PIXEL_SHIFT_1(a) (((~a##_x) >> 16) & 7)
#define PIXEL_OFFSET_1(a) (((((UINT32)a##_y >> 16) * a##_width / 8) + (((UINT32)a##_x >> 19) & ~7)) * (1 + a##_pitch) + (((UINT32)a##_x >> 19) & 7))
-#define READ_PIXEL_1(a) ((jaguar_byte_read(a##_addr+PIXEL_OFFSET_1(a)) >> PIXEL_SHIFT_1(a)) & 0x01)
+#define READ_PIXEL_1(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_1(a), BLITTER) >> PIXEL_SHIFT_1(a)) & 0x01)
+//#define READ_PIXEL_1(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_1(a)) >> PIXEL_SHIFT_1(a)) & 0x01)
// 2 bpp pixel read
#define PIXEL_SHIFT_2(a) (((~a##_x) >> 15) & 6)
#define PIXEL_OFFSET_2(a) (((((UINT32)a##_y >> 16) * a##_width / 4) + (((UINT32)a##_x >> 18) & ~7)) * (1 + a##_pitch) + (((UINT32)a##_x >> 18) & 7))
-#define READ_PIXEL_2(a) ((jaguar_byte_read(a##_addr+PIXEL_OFFSET_2(a)) >> PIXEL_SHIFT_2(a)) & 0x03)
+#define READ_PIXEL_2(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_2(a), BLITTER) >> PIXEL_SHIFT_2(a)) & 0x03)
+//#define READ_PIXEL_2(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_2(a)) >> PIXEL_SHIFT_2(a)) & 0x03)
// 4 bpp pixel read
#define PIXEL_SHIFT_4(a) (((~a##_x) >> 14) & 4)
#define PIXEL_OFFSET_4(a) (((((UINT32)a##_y >> 16) * (a##_width/2)) + (((UINT32)a##_x >> 17) & ~7)) * (1 + a##_pitch) + (((UINT32)a##_x >> 17) & 7))
-#define READ_PIXEL_4(a) ((jaguar_byte_read(a##_addr+PIXEL_OFFSET_4(a)) >> PIXEL_SHIFT_4(a)) & 0x0f)
+#define READ_PIXEL_4(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_4(a), BLITTER) >> PIXEL_SHIFT_4(a)) & 0x0f)
+//#define READ_PIXEL_4(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_4(a)) >> PIXEL_SHIFT_4(a)) & 0x0f)
// 8 bpp pixel read
#define PIXEL_OFFSET_8(a) (((((UINT32)a##_y >> 16) * a##_width) + (((UINT32)a##_x >> 16) & ~7)) * (1 + a##_pitch) + (((UINT32)a##_x >> 16) & 7))
-#define READ_PIXEL_8(a) (jaguar_byte_read(a##_addr+PIXEL_OFFSET_8(a)))
+#define READ_PIXEL_8(a) (JaguarReadByte(a##_addr+PIXEL_OFFSET_8(a), BLITTER))
+//#define READ_PIXEL_8(a) (JaguarReadByte(a##_addr+PIXEL_OFFSET_8(a)))
// 16 bpp pixel read
#define PIXEL_OFFSET_16(a) (((((UINT32)a##_y >> 16) * a##_width) + (((UINT32)a##_x >> 16) & ~3)) * (1 + a##_pitch) + (((UINT32)a##_x >> 16) & 3))
-#define READ_PIXEL_16(a) (jaguar_word_read(a##_addr+(PIXEL_OFFSET_16(a)<<1)))
+#define READ_PIXEL_16(a) (JaguarReadWord(a##_addr+(PIXEL_OFFSET_16(a)<<1), BLITTER))
+//#define READ_PIXEL_16(a) (JaguarReadWord(a##_addr+(PIXEL_OFFSET_16(a)<<1)))
// 32 bpp pixel read
#define PIXEL_OFFSET_32(a) (((((UINT32)a##_y >> 16) * a##_width) + (((UINT32)a##_x >> 16) & ~1)) * (1 + a##_pitch) + (((UINT32)a##_x >> 16) & 1))
-#define READ_PIXEL_32(a) (jaguar_long_read(a##_addr+(PIXEL_OFFSET_32(a)<<2)))
+#define READ_PIXEL_32(a) (JaguarReadLong(a##_addr+(PIXEL_OFFSET_32(a)<<2), BLITTER))
+//#define READ_PIXEL_32(a) (JaguarReadLong(a##_addr+(PIXEL_OFFSET_32(a)<<2)))
// pixel read
#define READ_PIXEL(a,f) (\
// 16 bpp z data read
#define ZDATA_OFFSET_16(a) (PIXEL_OFFSET_16(a) + a##_zoffs * 4)
-#define READ_ZDATA_16(a) (jaguar_word_read(a##_addr+(ZDATA_OFFSET_16(a)<<1)))
+#define READ_ZDATA_16(a) (JaguarReadWord(a##_addr+(ZDATA_OFFSET_16(a)<<1), BLITTER))
+//#define READ_ZDATA_16(a) (JaguarReadWord(a##_addr+(ZDATA_OFFSET_16(a)<<1)))
// z data read
#define READ_ZDATA(a,f) (READ_ZDATA_16(a))
// 16 bpp z data write
-#define WRITE_ZDATA_16(a,d) { jaguar_word_write(a##_addr+(ZDATA_OFFSET_16(a)<<1),d); }
+#define WRITE_ZDATA_16(a,d) { JaguarWriteWord(a##_addr+(ZDATA_OFFSET_16(a)<<1), d, BLITTER); }
+//#define WRITE_ZDATA_16(a,d) { JaguarWriteWord(a##_addr+(ZDATA_OFFSET_16(a)<<1), d); }
// z data write
#define WRITE_ZDATA(a,f,d) WRITE_ZDATA_16(a,d);
// 32 bpp r data read
#define READ_RDATA_32(r,a,p) ((p) ? REG(r+(((UINT32)a##_x>>14)&4)) : REG(r))
-
// register data read
#define READ_RDATA(r,a,f,p) (\
(((f>>3)&0x07) == 0) ? (READ_RDATA_1(r,a,p)) : \
(((f>>3)&0x07) == 5) ? (READ_RDATA_32(r,a,p)) : 0)
// 1 bpp pixel write
-#define WRITE_PIXEL_1(a,d) { jaguar_byte_write(a##_addr+PIXEL_OFFSET_1(a),(jaguar_byte_read(a##_addr+PIXEL_OFFSET_1(a))&(~(0x01 << PIXEL_SHIFT_1(a))))|(d<<PIXEL_SHIFT_1(a))); }
+#define WRITE_PIXEL_1(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_1(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_1(a), BLITTER)&(~(0x01 << PIXEL_SHIFT_1(a))))|(d<<PIXEL_SHIFT_1(a)), BLITTER); }
+//#define WRITE_PIXEL_1(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_1(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_1(a))&(~(0x01 << PIXEL_SHIFT_1(a))))|(d<<PIXEL_SHIFT_1(a))); }
// 2 bpp pixel write
-#define WRITE_PIXEL_2(a,d) { jaguar_byte_write(a##_addr+PIXEL_OFFSET_2(a),(jaguar_byte_read(a##_addr+PIXEL_OFFSET_2(a))&(~(0x03 << PIXEL_SHIFT_2(a))))|(d<<PIXEL_SHIFT_2(a))); }
+#define WRITE_PIXEL_2(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_2(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_2(a), BLITTER)&(~(0x03 << PIXEL_SHIFT_2(a))))|(d<<PIXEL_SHIFT_2(a)), BLITTER); }
+//#define WRITE_PIXEL_2(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_2(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_2(a))&(~(0x03 << PIXEL_SHIFT_2(a))))|(d<<PIXEL_SHIFT_2(a))); }
// 4 bpp pixel write
-#define WRITE_PIXEL_4(a,d) { jaguar_byte_write(a##_addr+PIXEL_OFFSET_4(a),(jaguar_byte_read(a##_addr+PIXEL_OFFSET_4(a))&(~(0x0f << PIXEL_SHIFT_4(a))))|(d<<PIXEL_SHIFT_4(a))); }
+#define WRITE_PIXEL_4(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_4(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_4(a), BLITTER)&(~(0x0f << PIXEL_SHIFT_4(a))))|(d<<PIXEL_SHIFT_4(a)), BLITTER); }
+//#define WRITE_PIXEL_4(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_4(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_4(a))&(~(0x0f << PIXEL_SHIFT_4(a))))|(d<<PIXEL_SHIFT_4(a))); }
// 8 bpp pixel write
-#define WRITE_PIXEL_8(a,d) { jaguar_byte_write(a##_addr+PIXEL_OFFSET_8(a),d); }
+#define WRITE_PIXEL_8(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_8(a), d, BLITTER); }
+//#define WRITE_PIXEL_8(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_8(a), d); }
// 16 bpp pixel write
-#define WRITE_PIXEL_16(a,d) { jaguar_word_write(a##_addr+(PIXEL_OFFSET_16(a)<<1),d); }
+//#define WRITE_PIXEL_16(a,d) { JaguarWriteWord(a##_addr+(PIXEL_OFFSET_16(a)<<1),d); }
+#define WRITE_PIXEL_16(a,d) { JaguarWriteWord(a##_addr+(PIXEL_OFFSET_16(a)<<1), d, BLITTER); if (specialLog) WriteLog("Pixel write address: %08X\n", a##_addr+(PIXEL_OFFSET_16(a)<<1)); }
+//#define WRITE_PIXEL_16(a,d) { JaguarWriteWord(a##_addr+(PIXEL_OFFSET_16(a)<<1), d); if (specialLog) WriteLog("Pixel write address: %08X\n", a##_addr+(PIXEL_OFFSET_16(a)<<1)); }
// 32 bpp pixel write
-#define WRITE_PIXEL_32(a,d) { jaguar_long_write(a##_addr+(PIXEL_OFFSET_32(a)<<2),d); }
+#define WRITE_PIXEL_32(a,d) { JaguarWriteLong(a##_addr+(PIXEL_OFFSET_32(a)<<2), d, BLITTER); }
+//#define WRITE_PIXEL_32(a,d) { JaguarWriteLong(a##_addr+(PIXEL_OFFSET_32(a)<<2), d); }
// pixel write
#define WRITE_PIXEL(a,f,d) {\
switch ((f>>3)&0x07) { \
case 0: WRITE_PIXEL_1(a,d); break; \
case 1: WRITE_PIXEL_2(a,d); break; \
- case 2: WRITE_PIXEL_4(a,d); break; \
+ case 2: WRITE_PIXEL_4(a,d); break; \
case 3: WRITE_PIXEL_8(a,d); break; \
case 4: WRITE_PIXEL_16(a,d); break; \
case 5: WRITE_PIXEL_32(a,d); break; \
- }} \
+ }}
+
+// External global variables
+
+extern int jaguar_active_memory_dumps;
+
+// Local global variables
+
+int start_logging = 0;
+uint8 blitter_working = 0;
+// Blitter register RAM (most of it is hidden from the user)
+static uint8 blitter_ram[0x100];
// Width in Pixels of a Scanline
+// This is a pretranslation of the value found in the A1 & A2 flags: It's really a floating point value
+// of the form EEEEMM where MM is the mantissa with an implied "1." in front of it and the EEEE value is
+// the exponent. Valid values for the exponent range from 0 to 11 (decimal). It's easiest to think of it
+// as a floating point bit pattern being followed by a number of zeroes. So, e.g., 001101 translates to
+// 1.01 (the "1." being implied) x (2 ^ 3) or 1010 -> 10 in base 10 (i.e., 1.01 with the decimal place
+// being shifted to the right 3 places).
static uint32 blitter_scanline_width[48] =
{
- 0, 0, 0, 0, 2, 0, 0, 0, 4,
- 0, 6, 0, 8, 10, 12, 14, 16, 20,
- 24, 28, 32, 40, 48, 56, 64, 80, 96,
- 112, 128, 160, 192, 224, 256, 320, 384, 448,
- 512, 640, 768, 896, 1024, 1280, 1536, 1792, 2048,
- 2560, 3072, 3584
+ 0, 0, 0, 0, // Note: This would really translate to 1, 1, 1, 1
+ 2, 0, 0, 0,
+ 4, 0, 6, 0,
+ 8, 10, 12, 14,
+ 16, 20, 24, 28,
+ 32, 40, 48, 56,
+ 64, 80, 96, 112,
+ 128, 160, 192, 224,
+ 256, 320, 384, 448,
+ 512, 640, 768, 896,
+ 1024, 1280, 1536, 1792,
+ 2048, 2560, 3072, 3584
};
-static uint8 * tom_ram_8;
-static uint8 * paletteRam;
+//static uint8 * tom_ram_8;
+//static uint8 * paletteRam;
static uint8 src;
static uint8 dst;
static uint8 misc;
static int32 a2_yadd;
static uint8 a1_phrase_mode;
static uint8 a2_phrase_mode;
-static int32 a1_step_x=0;
-static int32 a1_step_y=0;
-static int32 a2_step_x=0;
-static int32 a2_step_y=0;
+static int32 a1_step_x = 0;
+static int32 a1_step_y = 0;
+static int32 a2_step_x = 0;
+static int32 a2_step_y = 0;
static uint32 outer_loop;
static uint32 inner_loop;
static uint32 a2_psize;
static uint32 a1_psize;
static uint32 gouraud_add;
-static uint32 gouraud_data;
-static uint16 gint[4];
-static uint16 gfrac[4];
-static uint8 gcolour[4];
-static int gd_i[4];
-static int gd_c[4];
-static int gd_ia,gd_ca;
-static int colour_index = 0;
-static int32 zadd;
-static uint32 z_i[4];
-
-static uint8 blitter_code_cache[4096];
-static uint8 * blitter_ptr;
-uint8 blitter_working = 0;
-
-typedef void (blitter_fn)(void);
-
-typedef struct s_blitter_cache
-{
- uint32 hashcode;
- uint8 *code;
- uint32 ready;
- uint8 used;
- struct s_blitter_cache *next;
- struct s_blitter_cache *prev;
-} s_blitter_code_cache;
-
-s_blitter_cache *blitter_cache[256];
-
-uint8 blitter_cache_init=0;
-static uint8 BPP_LUT[8]={1,2,4,8,16,32,0,0};
-
-FILE *blitters_code_fp;
-FILE *blitters_code_init_fp;
-
-//////////////////////////////////////////////////////////////////////////////
-// build C code for the specified blitter
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void blitter_gen_c_code(FILE *fp, uint32 cmd,uint32 hashcode)
-{
- static uint8 inhibit_modified=0;
-
- fprintf(fp,"#ifndef blitter_code_0x%.8x\n",hashcode);
- fprintf(fp,"#define blitter_code_0x%.8x\n",hashcode);
-
- fprintf(fp,"void blitter_0x%.8x(void)\n",hashcode);
- fprintf(fp,"{\n");
- fprintf(fp,"\twhile (outer_loop--)\n");
- fprintf(fp,"\t{\n");
- fprintf(fp,"\t\tinner_loop=n_pixels;\n");
- fprintf(fp,"\t\twhile (inner_loop--)\n");
- fprintf(fp,"\t\t{\n");
- fprintf(fp,"\t\t\tuint32 srcdata = 0;\n");
- fprintf(fp,"\t\t\tuint32 srczdata = 0;\n");
- fprintf(fp,"\t\t\tuint32 dstdata = 0;\n");
- fprintf(fp,"\t\t\tuint32 dstzdata = 0;\n");
- fprintf(fp,"\t\t\tuint32 writedata = 0;\n");
- fprintf(fp,"\t\t\tuint32 inhibit = 0;\n");
-
- char *src;
- char *dst;
- uint32 src_flags;
- uint32 dst_flags;
-
- if (!DSTA2)
- {
- src="a2";
- dst="a1";
- src_flags=A2_FLAGS;
- dst_flags=A1_FLAGS;
- }
- else
- {
- src="a1";
- dst="a2";
- src_flags=A1_FLAGS;
- dst_flags=A2_FLAGS;
- }
-
- // load src data and Z
- if (SRCEN)
- {
- fprintf(fp,"\t\t\tsrcdata = READ_PIXEL_%i(%s);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],src);
- if (SRCENZ)
- fprintf(fp,"\t\t\tsrczdata = READ_ZDATA_%i(%s);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],src);
- else
- if (cmd & 0x001c020)
- fprintf(fp,"\t\t\tsrczdata = READ_RDATA_%i(SRCZINT, %s, %s_phrase_mode);\n",BPP_LUT[(((REG(src_flags))>>3)&0x07)],src,src);
- }
- else
- {
- fprintf(fp,"\t\t\tsrcdata = READ_RDATA_%i(SRCDATA, %s, %s_phrase_mode);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],src,src);
- if (cmd & 0x001c020)
- fprintf(fp,"\t\t\tsrczdata = READ_RDATA_%i(SRCZINT, %s, %s_phrase_mode);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],src,src);
- }
-
- // load dst data and Z
- if (DSTEN)
- {
- fprintf(fp,"\t\t\tdstdata = READ_PIXEL_%i(%s);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst);
- if (DSTENZ)
- fprintf(fp,"\t\t\tdstzdata = READ_ZDATA_%i(%s);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst);
- else
- fprintf(fp,"\t\t\tdstzdata = READ_RDATA_%i(DSTZ, %s, %s_phrase_mode);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst,dst);
- }
- else
- {
- fprintf(fp,"\t\t\tdstdata = READ_RDATA_%i(DSTDATA, %s, %s_phrase_mode);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst,dst);
-
- if (DSTENZ)
- fprintf(fp,"\t\t\tdstzdata = READ_RDATA_%i(DSTZ, %s, %s_phrase_mode);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst,dst);
- }
-
- // a1 clipping
- if ((cmd & 0x00000040)&&(!DSTA2))
-
- {
- fprintf(fp,"\t\t\tif (a1_x < 0 || a1_y < 0 || (a1_x >> 16) >= (REG(A1_CLIP) & 0x7fff) || (a1_y >> 16) >= ((REG(A1_CLIP) >> 16) & 0x7fff)) inhibit = 1;\n");
- inhibit_modified=1;
- }
- if(GOURZ)
- {
- fprintf(fp,"\t\t\tsrczdata=z_i[colour_index]>>16;\n");
- }
- // apply z comparator
- if (Z_OP_INF) { fprintf(fp,"\t\t\tif (srczdata < dstzdata) inhibit = 1;\n"); inhibit_modified=1;}
- if (Z_OP_EQU) { fprintf(fp,"\t\t\tif (srczdata == dstzdata) inhibit = 1;\n"); inhibit_modified=1;}
- if (Z_OP_SUP) { fprintf(fp,"\t\t\tif (srczdata > dstzdata) inhibit = 1;\n"); inhibit_modified=1;}
-
- // apply data comparator
- if (DCOMPEN)
- {
- if (!CMPDST)
- {
- // compare source pixel with pattern pixel
- fprintf(fp,"\t\t\tif (srcdata == READ_RDATA_%i(PATTERNDATA, %s,%s_phrase_mode)) inhibit=1;\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],src,src);
- inhibit_modified=1;
- }
- else
- {
- // compare destination pixel with pattern pixel
- fprintf(fp,"\t\t\tif (dstdata == READ_RDATA_%i(PATTERNDATA, %s,%s_phrase_mode)) inhibit=1;\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst,dst);
- inhibit_modified=1;
- }
- }
-
- // compute the write data and store
- if (inhibit_modified) fprintf(fp,"\t\t\tif (!inhibit)\n\t\t\t{\n");
- if (PATDSEL)
- {
- // use pattern data for write data
- fprintf(fp,"\t\t\t\twritedata= READ_RDATA_%i(PATTERNDATA, %s, %s_phrase_mode);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst,dst);
- }
- else
- if (INTADD)
- {
- // intensity addition
- fprintf(fp,"\t\t\t\twritedata = (srcdata & 0xff) + (dstdata & 0xff);\n");
- if (!(TOPBEN))
- fprintf(fp,"\t\t\t\tif (writedata > 0xff) writedata = 0xff;\n");
-
- fprintf(fp,"\t\t\t\twritedata |= (srcdata & 0xf00) + (dstdata & 0xf00);\n");
- if (!(TOPNEN)) fprintf(fp,"\t\t\t\tif (writedata > 0xfff) writedata = 0xfff;\n");
- fprintf(fp,"\t\t\t\twritedata |= (srcdata & 0xf000) + (dstdata & 0xf000);\n");
- }
- else
- {
- if (LFU_NAN) fprintf(fp,"\t\t\t\twritedata |= ~srcdata & ~dstdata;\n");
- if (LFU_NA) fprintf(fp,"\t\t\t\twritedata |= ~srcdata & dstdata;\n");
- if (LFU_AN) fprintf(fp,"\t\t\t\twritedata |= srcdata & ~dstdata;\n");
- if (LFU_A) fprintf(fp,"\t\t\t\twritedata |= srcdata & dstdata;\n");
- }
- if(GOURD)
- {
- fprintf(fp,"\t\t\t\twritedata = ((gd_c[colour_index])<<8)|(gd_i[colour_index]>>16);\n");
- }
- if(SRCSHADE)
- {
- fprintf(fp,"\t\t\t\t{\n");
- fprintf(fp,"\t\t\t\tint intensity = srcdata & 0xFF;\n");
- fprintf(fp,"\t\t\t\tint ia = gd_ia >> 16;\n");
- fprintf(fp,"\t\t\t\tif(ia & 0x80)\n");
- fprintf(fp,"\t\t\t\t ia = 0xFFFFFF00 | ia;\n");
- fprintf(fp,"\t\t\t\tintensity += ia;\n");
- fprintf(fp,"\t\t\t\tif(intensity < 0)\n");
- fprintf(fp,"\t\t\t\t intensity = 0;\n");
- fprintf(fp,"\t\t\t\tif(intensity > 0xFF)\n");
- fprintf(fp,"\t\t\t\t intensity = 0xFF;\n");
- fprintf(fp,"\t\t\t\twritedata = (srcdata & 0xFF00) | intensity;\n");
- fprintf(fp,"\t\t\t\t}\n");
- }
- if (inhibit_modified)
- {
- fprintf(fp,"\t\t\t} else { srczdata=dstzdata; writedata=dstdata; }\n");
- }
-
- if ((DSTA2?a2_phrase_mode:a1_phrase_mode) || BKGWREN)
- {
- // write to the destination
- fprintf(fp,"\t\t\tWRITE_PIXEL_%i(%s, writedata);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst);
- if (DSTWRZ) fprintf(fp,"\t\t\tWRITE_ZDATA_%i(%s, srczdata);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst);
- }
- else
- {
- if (inhibit_modified) fprintf(fp,"\t\t\tif (!inhibit)\n\t\t\t{\n");
- // write to the destination
- fprintf(fp,"\t\t\t\tWRITE_PIXEL_%i(%s, writedata);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst);
- if (DSTWRZ) fprintf(fp,"\t\t\t\tWRITE_ZDATA_%i(%s, srczdata);\n",BPP_LUT[(((REG(dst_flags))>>3)&0x07)],dst);
- if (inhibit_modified) fprintf(fp,"\t\t\t}\n");
- }
- // update x and y
- fprintf(fp,"\t\t\ta1_x += a1_xadd;\n");
- fprintf(fp,"\t\t\ta1_y += a1_yadd;\n");
- fprintf(fp,"\t\t\ta2_x = (a2_x + a2_xadd) & a2_mask_x;\n");
- fprintf(fp,"\t\t\ta2_y = (a2_y + a2_yadd) & a2_mask_y;\n");
- if (GOURZ)
- {
- fprintf(fp,"\t\t\tz_i[colour_index]+=zadd;\n");
- }
- if ((GOURD)||(SRCSHADE))
- {
- fprintf(fp,"\t\t\tgd_i[colour_index] += gd_ia;\n");
- fprintf(fp,"\t\t\tgd_c[colour_index] += gd_ca;\n");
- }
- if ((GOURD)||(SRCSHADE)||(GOURZ))
- {
- if (a1_phrase_mode)
- fprintf(fp,"\t\t\t colour_index=(colour_index+1)&0x3;\n");
- }
- fprintf(fp,"\t\t}\n");
+//static uint32 gouraud_data;
+//static uint16 gint[4];
+//static uint16 gfrac[4];
+//static uint8 gcolour[4];
+static int gd_i[4];
+static int gd_c[4];
+static int gd_ia, gd_ca;
+static int colour_index = 0;
+static int32 zadd;
+static uint32 z_i[4];
+
+static int32 a1_clip_x, a1_clip_y;
+
+// In the spirit of "get it right first, *then* optimize" I've taken the liberty
+// of removing all the unnecessary code caching. If it turns out to be a good way
+// to optimize the blitter, then we may revisit it in the future...
- fprintf(fp,"\t\ta1_x+=a1_step_x;\n");
- fprintf(fp,"\t\ta1_y+=a1_step_y;\n");
- fprintf(fp,"\t\ta2_x+=a2_step_x;\n");
- fprintf(fp,"\t\ta2_y+=a2_step_y;\n");
- fprintf(fp,"\t}\n");
-
- // write values back to registers
- fprintf(fp,"\tWREG(A1_PIXEL, (a1_y & 0xffff0000) | ((a1_x >> 16) & 0xffff));\n");
- fprintf(fp,"\tWREG(A1_FPIXEL, (a1_y << 16) | (a1_x & 0xffff));\n");
- fprintf(fp,"\tWREG(A2_PIXEL, (a2_y & 0xffff0000) | ((a2_x >> 16) & 0xffff));\n");
- fprintf(fp,"}\n");
- fprintf(fp,"#endif\n");
-}
-
-//////////////////////////////////////////////////////////////////////////////
-// Generate a start of function in x86 assembly
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void blitter_gen_start_of_function(void)
-{
- *blitter_ptr++=0x55; // push ebp
- *blitter_ptr++=0x8b; // mov ebp,esp
- *blitter_ptr++=0xec;
-}
-//////////////////////////////////////////////////////////////////////////////
-// Generate a end of function in x86 assembly
-//////////////////////////////////////////////////////////////////////////////
//
+// Generic blit handler
//
-//
-//////////////////////////////////////////////////////////////////////////////
-void blitter_gen_end_of_function(void)
+void blitter_generic(uint32 cmd)
{
- *blitter_ptr++=0x8B; // mov esp,ebp
- *blitter_ptr++=0xE5;
- *blitter_ptr++=0x5D; // pop ebp
- *blitter_ptr++=0xC3; // ret
-}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-#define HASHCODE_BIT(C,B) if (C) hashcode|=(1<<B);
-#define HASHCODE_BIT_TEST(B) (hashcode&(1<<B))
+//Testing only!
+//uint32 logGo = ((cmd == 0x01800E01 && REG(A1_BASE) == 0x898000) ? 1 : 0);
+ uint32 srcdata, srczdata, dstdata, dstzdata, writedata, inhibit;
-uint32 blitter_calc_hashcode(uint32 cmd)
+if (specialLog)
{
- uint32 hashcode=0x00000000;
-
- // source and destination bit depth
- hashcode|=((REG(A1_FLAGS)>>3)&0x07)<<0;
- hashcode|=((REG(A2_FLAGS)>>3)&0x07)<<3;
-
- HASHCODE_BIT(DSTA2, 6);
- HASHCODE_BIT(SRCEN, 7);
- HASHCODE_BIT(SRCENZ, 8);
- HASHCODE_BIT(DSTEN, 9);
- HASHCODE_BIT(DSTENZ, 10);
- HASHCODE_BIT(Z_OP_INF, 11);
- HASHCODE_BIT(Z_OP_EQU, 12);
- HASHCODE_BIT(Z_OP_SUP, 13);
- HASHCODE_BIT(DCOMPEN, 14);
- HASHCODE_BIT(CMPDST, 15);
- HASHCODE_BIT(PATDSEL, 16);
- HASHCODE_BIT(INTADD, 17);
- HASHCODE_BIT(TOPBEN, 18);
- HASHCODE_BIT(TOPNEN, 19);
- HASHCODE_BIT(LFU_NAN, 20);
- HASHCODE_BIT(LFU_NA, 21);
- HASHCODE_BIT(LFU_AN, 22);
- HASHCODE_BIT(LFU_A, 23);
- HASHCODE_BIT(BKGWREN, 24);
- HASHCODE_BIT(DSTWRZ, 25);
- HASHCODE_BIT((cmd & 0x001c020), 26); // extra data read/write
- HASHCODE_BIT((cmd & 0x00000040), 27); // source clipping
- HASHCODE_BIT(a1_phrase_mode, 28);
- HASHCODE_BIT(a2_phrase_mode, 29);
-
-
- return(hashcode);
+ WriteLog("About to do 8x8 blit (BM width is 448 pixels)...\n");
}
-//////////////////////////////////////////////////////////////////////////////
-// Build the blitter code for the current blitter operation in the cache
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void blitter_build_cached_code(uint32 cmd, uint32 cache_index)
-{
-}
-//////////////////////////////////////////////////////////////////////////////
-// Check if the blitter code for the current blitter operation is cached
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-struct s_blitter_cache * blitter_in_cache(uint32 cmd)
-{
- uint32 i;
- uint32 hashcode=blitter_calc_hashcode(cmd);
-#ifdef LOG_BLITS
- fprintf(log_get(),"blitter: hashcode= 0x%.8x\n",hashcode);
-#endif
- struct s_blitter_cache *blitter_list=blitter_cache[hashcode>>24];
-
- i=0;
- while (blitter_list->next)
+ while (outer_loop--)
{
- blitter_list=blitter_list->next;
-
- if (blitter_list->hashcode==hashcode)
- return(blitter_list);
- }
-#ifdef GEN_CODE
- blitter_list->next=(struct s_blitter_cache *)malloc(sizeof(struct s_blitter_cache));
- blitter_list->next->prev=blitter_list;
- blitter_list->next->next=null;
- blitter_list=blitter_list->next;
-
- blitter_list->code=(uint8*)malloc(4096);
- blitter_list->hashcode=hashcode;
- blitter_list->ready=0;
- blitter_gen_c_code(blitters_code_fp,cmd,hashcode);
- fprintf(blitters_code_init_fp,"\tblitter_add(0x%.8x,(uint8*)&blitter_0x%.8x);\n",hashcode,hashcode);
-#else
- //fprintf(log_get(),"warning: using generic blitter for blitter 0x%.8x\n",hashcode);
-#endif
- return(null);
-}
-#ifndef USE_GENERIC_BLITTER
-#include "include/blit_c.h"
-#endif
-//////////////////////////////////////////////////////////////////////////////
-// Execute the cached blitter code for the current blitter operation
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-uint32 blitter_execute_cached_code(struct s_blitter_cache *blitter)
+if (specialLog)
{
- if ((blitter==null)||(blitter->ready==0))
- return 0;
-
- blitter_fn *fn=(blitter_fn*)blitter->code;
- blitter->used=1;
- (*fn)();
-
- return(1);
-}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void blitter_add(uint32 hashcode, uint8 *code)
-{
- struct s_blitter_cache *blitter_list=blitter_cache[(hashcode>>24)];
-
-// fprintf(log_get(),"adding blitter for hashcode 0x%.8x\n",hashcode);
-
- while (blitter_list->next)
- {
- blitter_list=blitter_list->next;
-
- if (blitter_list->hashcode==hashcode)
- return;
- }
- blitter_list->next=(struct s_blitter_cache *)malloc(sizeof(struct s_blitter_cache));
- blitter_list->next->prev=blitter_list;
- blitter_list->next->next=null;
- blitter_list=blitter_list->next;
-
- blitter_list->code=code;
- blitter_list->hashcode=hashcode;
- blitter_list->ready=1;
- blitter_list->used=0;
+ WriteLog(" A1_X/Y = %08X/%08X, A2_X/Y = %08X/%08X\n", a1_x, a1_y, a2_x, a2_y);
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void blitter_list(void)
-{
-/*
- fprintf(log_get(),"Used blitters list:\n");
-
- for (int i=0;i<256;i++)
- {
- struct s_blitter_cache *blitter_list=blitter_cache[i];
-
- while (blitter_list->next)
- {
- blitter_list=blitter_list->next;
- if (blitter_list->used)
- fprintf(log_get(),"\t0%.8x\n",blitter_list->hashcode);
- }
- }
-*/
-}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
-void blitter_generic(uint32 cmd)
-{
- uint32 srcdata = 0;
- uint32 srczdata = 0;
- uint32 dstdata = 0;
- uint32 dstzdata = 0;
- uint32 writedata = 0;
- uint32 inhibit = 0;
- while (outer_loop--)
- {
- inner_loop=n_pixels;
+ inner_loop = n_pixels;
while (inner_loop--)
{
- srcdata = 0;
- srczdata = 0;
- dstdata = 0;
- dstzdata = 0;
- writedata = 0;
- inhibit = 0;
+if (specialLog)
+{
+ WriteLog(" A1_X/Y = %08X/%08X, A2_X/Y = %08X/%08X\n", a1_x, a1_y, a2_x, a2_y);
+}
+ srcdata = srczdata = dstdata = dstzdata = writedata = inhibit = 0;
if (!DSTA2)
{
{
srcdata = READ_PIXEL(a2, REG(A2_FLAGS));
if (SRCENZ)
- {
srczdata = READ_ZDATA(a2, REG(A2_FLAGS));
- }
- else
- if (cmd & 0x001c020)
- {
+ else if (cmd & 0x0001C020)
srczdata = READ_RDATA(SRCZINT, a2, REG(A2_FLAGS), a2_phrase_mode);
- }
}
else
{
srcdata = READ_RDATA(SRCDATA, a2, REG(A2_FLAGS), a2_phrase_mode);
- if (cmd & 0x001c020)
- {
+ if (cmd & 0x0001C020)
srczdata = READ_RDATA(SRCZINT, a2, REG(A2_FLAGS), a2_phrase_mode);
- }
}
// load dst data and Z
{
dstdata = READ_PIXEL(a1, REG(A1_FLAGS));
if (DSTENZ)
- {
dstzdata = READ_ZDATA(a1, REG(A1_FLAGS));
- }
else
- {
dstzdata = READ_RDATA(DSTZ, a1, REG(A1_FLAGS), a1_phrase_mode);
- }
}
else
{
dstdata = READ_RDATA(DSTDATA, a1, REG(A1_FLAGS), a1_phrase_mode);
-
if (DSTENZ)
- {
dstzdata = READ_RDATA(DSTZ, a1, REG(A1_FLAGS), a1_phrase_mode);
- }
}
- // a1 clipping
+/*This wasn't working... // a1 clipping
if (cmd & 0x00000040)
{
- if (
- a1_x < 0 ||
- a1_y < 0 ||
- (a1_x >> 16) >= (REG(A1_CLIP) & 0x7fff) ||
- (a1_y >> 16) >= ((REG(A1_CLIP) >> 16) & 0x7fff)
- )
+ if (a1_x < 0 || a1_y < 0 || (a1_x >> 16) >= (REG(A1_CLIP) & 0x7FFF)
+ || (a1_y >> 16) >= ((REG(A1_CLIP) >> 16) & 0x7FFF))
inhibit = 1;
- }
+ }//*/
- if(GOURZ)
- srczdata=z_i[colour_index]>>16;
+ if (GOURZ)
+ srczdata = z_i[colour_index] >> 16;
// apply z comparator
if (Z_OP_INF) if (srczdata < dstzdata) inhibit = 1;
if (Z_OP_SUP) if (srczdata > dstzdata) inhibit = 1;
// apply data comparator
- if (DCOMPEN|BCOMPEN)
+// Note: DCOMPEN only works in 8/16 bpp modes! !!! FIX !!!
+// Does BCOMPEN only work in 1 bpp mode???
+ if (DCOMPEN | BCOMPEN)
{
if (!CMPDST)
{
+//WriteLog("Blitter: BCOMPEN set on command %08X inhibit prev:%u, now:", cmd, inhibit);
// compare source pixel with pattern pixel
- if (srcdata == READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode))
- inhibit=1;
+/*
+Blit! (000B8250 <- 0012C3A0) count: 16 x 1, A1/2_FLAGS: 00014420/00012000 [cmd: 05810001]
+ CMD -> src: SRCEN dst: misc: a1ctl: mode: ity: PATDSEL z-op: op: LFU_REPLACE ctrl: BCOMPEN
+ A1 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 384 (22), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
+ A2 -> pitch: 1 phrases, depth: 1bpp, z-off: 0, width: 16 (10), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
+ x/y: 0/20
+...
+*/
+// AvP is still wrong, could be cuz it's doing A1 -> A2...
+
+// Src is the 1bpp bitmap... DST is the PATTERN!!!
+// This seems to solve at least ONE of the problems with MC3D...
+// Why should this be inverted???
+// Bcuz it is. This is supposed to be used only for a bit -> pixel expansion...
+/* if (srcdata == READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode))
+// if (srcdata != READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode))
+ inhibit = 1;//*/
+/* uint32 A2bpp = 1 << ((REG(A2_FLAGS) >> 3) & 0x07);
+ if (A2bpp == 1 || A2bpp == 16 || A2bpp == 8)
+ inhibit = (srcdata == 0 ? 1: 0);
+// inhibit = !srcdata;
+ else
+ WriteLog("Blitter: Bad BPP (%u) selected for BCOMPEN mode!\n", A2bpp);//*/
+// What it boils down to is this:
+ if (srcdata == 0)
+ inhibit = 1;//*/
}
else
{
// compare destination pixel with pattern pixel
if (dstdata == READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode))
- inhibit=1;
+// if (dstdata != READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode))
+ inhibit = 1;
}
- if (a1_phrase_mode||a2_phrase_mode)
- inhibit=!inhibit;
+// This is DEFINITELY WRONG
+ if (a1_phrase_mode || a2_phrase_mode)
+ inhibit = !inhibit;
}
-
+
+ if (CLIPA1)
+ {
+ inhibit |= (((a1_x >> 16) < a1_clip_x && (a1_x >> 16) >= 0
+ && (a1_y >> 16) < a1_clip_y && (a1_y >> 16) >= 0) ? 0 : 1);
+ }
+
// compute the write data and store
if (!inhibit)
{
if (PATDSEL)
{
// use pattern data for write data
- writedata= READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode);
+ writedata = READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode);
}
- else
- if (INTADD)
+ else if (INTADD)
{
// intensity addition
- writedata = (srcdata & 0xff) + (dstdata & 0xff);
- if (!(TOPBEN) && writedata > 0xff)
- writedata = 0xff;
- writedata |= (srcdata & 0xf00) + (dstdata & 0xf00);
- if (!(TOPNEN) && writedata > 0xfff)
- writedata = 0xfff;
- writedata |= (srcdata & 0xf000) + (dstdata & 0xf000);
+ writedata = (srcdata & 0xFF) + (dstdata & 0xFF);
+ if (!(TOPBEN) && writedata > 0xFF)
+ writedata = 0xFF;
+ writedata |= (srcdata & 0xF00) + (dstdata & 0xF00);
+ if (!(TOPNEN) && writedata > 0xFFF)
+ writedata = 0xFFF;
+ writedata |= (srcdata & 0xF000) + (dstdata & 0xF000);
}
else
{
if (LFU_AN) writedata |= srcdata & ~dstdata;
if (LFU_A) writedata |= srcdata & dstdata;
}
- if(GOURD)
- writedata = ((gd_c[colour_index])<<8)|(gd_i[colour_index]>>16);
- if(SRCSHADE)
+ if (GOURD)
+ writedata = ((gd_c[colour_index]) << 8) | (gd_i[colour_index] >> 16);
+
+ if (SRCSHADE)
{
int intensity = srcdata & 0xFF;
int ia = gd_ia >> 16;
- if(ia & 0x80)
+ if (ia & 0x80)
ia = 0xFFFFFF00 | ia;
intensity += ia;
- if(intensity < 0)
+ if (intensity < 0)
intensity = 0;
- if(intensity > 0xFF)
+ if (intensity > 0xFF)
intensity = 0xFF;
writedata = (srcdata & 0xFF00) | intensity;
}
}
else
{
- writedata=dstdata;
- srczdata=dstzdata;
+ writedata = dstdata;
+ srczdata = dstzdata;
}
+
if (/*a1_phrase_mode || */BKGWREN || !inhibit)
{
+/*if (((REG(A1_FLAGS) >> 3) & 0x07) == 5)
+{
+ uint32 offset = a1_addr+(PIXEL_OFFSET_32(a1)<<2);
+// (((((UINT32)a##_y >> 16) * a##_width) + (((UINT32)a##_x >> 16) & ~1)) * (1 + a##_pitch) + (((UINT32)a##_x >> 16) & 1))
+ if ((offset >= 0x1FF020 && offset <= 0x1FF03F) || (offset >= 0x1FF820 && offset <= 0x1FF83F))
+ WriteLog("32bpp pixel write: A1 Phrase mode --> ");
+}//*/
// write to the destination
WRITE_PIXEL(a1, REG(A1_FLAGS), writedata);
- if (DSTWRZ) WRITE_ZDATA(a1, REG(A1_FLAGS), srczdata);
+ if (DSTWRZ)
+ WRITE_ZDATA(a1, REG(A1_FLAGS), srczdata);
}
}
- else
+ else // if (DSTA2)
{
// load src data and Z
if (SRCEN)
{
srcdata = READ_PIXEL(a1, REG(A1_FLAGS));
if (SRCENZ)
- {
srczdata = READ_ZDATA(a1, REG(A1_FLAGS));
- }
- else
- if (cmd & 0x001c020)
- {
+ else if (cmd & 0x0001C020)
srczdata = READ_RDATA(SRCZINT, a1, REG(A1_FLAGS), a1_phrase_mode);
- }
}
else
{
srcdata = READ_RDATA(SRCDATA, a1, REG(A1_FLAGS), a1_phrase_mode);
- if (cmd & 0x001c020)
- {
+ if (cmd & 0x001C020)
srczdata = READ_RDATA(SRCZINT, a1, REG(A1_FLAGS), a1_phrase_mode);
- }
}
// load dst data and Z
{
dstdata = READ_PIXEL(a2, REG(A2_FLAGS));
if (DSTENZ)
- {
dstzdata = READ_ZDATA(a2, REG(A2_FLAGS));
- }
else
- {
dstzdata = READ_RDATA(DSTZ, a2, REG(A2_FLAGS), a2_phrase_mode);
- }
}
else
{
dstdata = READ_RDATA(DSTDATA, a2, REG(A2_FLAGS), a2_phrase_mode);
-
if (DSTENZ)
- {
dstzdata = READ_RDATA(DSTZ, a2, REG(A2_FLAGS), a2_phrase_mode);
- }
}
- if(GOURZ)
- srczdata=z_i[colour_index]>>16;
+ if (GOURZ)
+ srczdata = z_i[colour_index] >> 16;
// apply z comparator
if (Z_OP_INF) if (srczdata < dstzdata) inhibit = 1;
if (Z_OP_SUP) if (srczdata > dstzdata) inhibit = 1;
// apply data comparator
- if (DCOMPEN|BCOMPEN)
+//NOTE: The bit comparator (BCOMPEN) is NOT the same at the data comparator!
+ if (DCOMPEN | BCOMPEN)
{
if (!CMPDST)
{
// compare source pixel with pattern pixel
- if (srcdata == READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode))
- inhibit=1;
+// AvP: Numbers are correct, but sprites are not!
+//This doesn't seem to be a problem... But could still be wrong...
+/* if (srcdata == READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode))
+// if (srcdata != READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode))
+ inhibit = 1;//*/
+// This is probably not 100% correct... It works in the 1bpp case
+// (in A1 <- A2 mode, that is...)
+// AvP: This is causing blocks to be written instead of bit patterns...
+// Works now...
+// NOTE: We really should separate out the BCOMPEN & DCOMPEN stuff!
+/* uint32 A1bpp = 1 << ((REG(A1_FLAGS) >> 3) & 0x07);
+ if (A1bpp == 1 || A1bpp == 16 || A1bpp == 8)
+ inhibit = (srcdata == 0 ? 1: 0);
+ else
+ WriteLog("Blitter: Bad BPP (%u) selected for BCOMPEN mode!\n", A1bpp);//*/
+// What it boils down to is this:
+ if (srcdata == 0)
+ inhibit = 1;//*/
}
else
{
// compare destination pixel with pattern pixel
if (dstdata == READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode))
- inhibit=1;
+// if (dstdata != READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode))
+ inhibit = 1;
}
- if (a1_phrase_mode||a2_phrase_mode)
- inhibit=!inhibit;
+ if (a1_phrase_mode || a2_phrase_mode)
+ inhibit =! inhibit;
}
+ if (CLIPA1)
+ {
+ inhibit |= (((a1_x >> 16) < a1_clip_x && (a1_x >> 16) >= 0
+ && (a1_y >> 16) < a1_clip_y && (a1_y >> 16) >= 0) ? 0 : 1);
+ }
+
// compute the write data and store
if (!inhibit)
{
// use pattern data for write data
writedata= READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode);
}
- else
- if (INTADD)
+ else if (INTADD)
{
// intensity addition
- writedata = (srcdata & 0xff) + (dstdata & 0xff);
- if (!(TOPBEN) && writedata > 0xff)
- writedata = 0xff;
- writedata |= (srcdata & 0xf00) + (dstdata & 0xf00);
- if (!(TOPNEN) && writedata > 0xfff)
- writedata = 0xfff;
- writedata |= (srcdata & 0xf000) + (dstdata & 0xf000);
+ writedata = (srcdata & 0xFF) + (dstdata & 0xFF);
+ if (!(TOPBEN) && writedata > 0xFF)
+ writedata = 0xFF;
+ writedata |= (srcdata & 0xF00) + (dstdata & 0xF00);
+ if (!(TOPNEN) && writedata > 0xFFF)
+ writedata = 0xFFF;
+ writedata |= (srcdata & 0xF000) + (dstdata & 0xF000);
}
else
{
if (LFU_A)
writedata |= srcdata & dstdata;
}
- if(GOURD)
- writedata = ((gd_c[colour_index])<<8)|(gd_i[colour_index]>>16);
- if(SRCSHADE)
+ if (GOURD)
+ writedata = ((gd_c[colour_index]) << 8) | (gd_i[colour_index] >> 16);
+
+ if (SRCSHADE)
{
int intensity = srcdata & 0xFF;
int ia = gd_ia >> 16;
- if(ia & 0x80)
+ if (ia & 0x80)
ia = 0xFFFFFF00 | ia;
intensity += ia;
- if(intensity < 0)
+ if (intensity < 0)
intensity = 0;
- if(intensity > 0xFF)
+ if (intensity > 0xFF)
intensity = 0xFF;
writedata = (srcdata & 0xFF00) | intensity;
}
}
else
{
- writedata=dstdata;
- srczdata=dstzdata;
+ writedata = dstdata;
+ srczdata = dstzdata;
}
if (/*a2_phrase_mode || */BKGWREN || !inhibit)
{
+/*if (logGo)
+{
+ uint32 offset = a2_addr+(PIXEL_OFFSET_16(a2)<<1);
+// (((((UINT32)a##_y >> 16) * a##_width) + (((UINT32)a##_x >> 16) & ~1)) * (1 + a##_pitch) + (((UINT32)a##_x >> 16) & 1))
+ WriteLog("[%08X:%04X] ", offset, writedata);
+}//*/
// write to the destination
WRITE_PIXEL(a2, REG(A2_FLAGS), writedata);
if (DSTWRZ)
WRITE_ZDATA(a2, REG(A2_FLAGS), srczdata);
}
}
+
// update x and y
a1_x += a1_xadd;
a1_y += a1_yadd;
a2_y = (a2_y + a2_yadd) & a2_mask_y;
if (GOURZ)
- z_i[colour_index]+=zadd;
+ z_i[colour_index] += zadd;
- if ((GOURD)||(SRCSHADE))
+ if (GOURD || SRCSHADE)
{
gd_i[colour_index] += gd_ia;
gd_c[colour_index] += gd_ca;
}
- if ((GOURD)||(SRCSHADE)||(GOURZ))
+ if (GOURD || SRCSHADE || GOURZ)
{
- if(a1_phrase_mode)
- colour_index=(colour_index+1)&0x3;
+ if (a1_phrase_mode)
+ colour_index = (colour_index + 1) & 0x03;
}
}
- a1_x+=a1_step_x;
- a1_y+=a1_step_y;
- a2_x+=a2_step_x;
- a2_y+=a2_step_y;
+ a1_x += a1_step_x;
+ a1_y += a1_step_y;
+ a2_x += a2_step_x;
+ a2_y += a2_step_y;
/* if (a2_phrase_mode)
{
*/ }
// write values back to registers
- WREG(A1_PIXEL, (a1_y & 0xffff0000) | ((a1_x >> 16) & 0xffff));
- WREG(A1_FPIXEL, (a1_y << 16) | (a1_x & 0xffff));
- WREG(A2_PIXEL, (a2_y & 0xffff0000) | ((a2_x >> 16) & 0xffff));
+ WREG(A1_PIXEL, (a1_y & 0xFFFF0000) | ((a1_x >> 16) & 0xFFFF));
+ WREG(A1_FPIXEL, (a1_y << 16) | (a1_x & 0xFFFF));
+ WREG(A2_PIXEL, (a2_y & 0xFFFF0000) | ((a2_x >> 16) & 0xFFFF));
+specialLog = false;
}
-//////////////////////////////////////////////////////////////////////////////
-//
-//////////////////////////////////////////////////////////////////////////////
-//
-//
-//
-//////////////////////////////////////////////////////////////////////////////
+
void blitter_blit(uint32 cmd)
{
+ uint32 pitchValue[4] = { 0, 1, 3, 2 };
colour_index = 0;
src = cmd & 0x07;
dst = (cmd >> 3) & 0x07;
op = (cmd >> 21) & 0x0F;
ctrl = (cmd >> 25) & 0x3F;
- a1_addr = REG(A1_BASE);
- a2_addr = REG(A2_BASE);
+ // Addresses in A1/2_BASE are *phrase* aligned, i.e., bottom three bits are ignored!
+ // NOTE: This fixes Rayman's bad collision detection AND keeps T2K working!
+ a1_addr = REG(A1_BASE) & 0xFFFFFFF8;
+ a2_addr = REG(A2_BASE) & 0xFFFFFFF8;
a1_zoffs = (REG(A1_FLAGS) >> 6) & 7;
a2_zoffs = (REG(A2_FLAGS) >> 6) & 7;
xadd_a1_control = (REG(A1_FLAGS) >> 16) & 0x03;
xadd_a2_control = (REG(A2_FLAGS) >> 16) & 0x03;
- a1_pitch = (REG(A1_FLAGS) & 3) ^ ((REG(A1_FLAGS) & 2) >> 1);
- a2_pitch = (REG(A2_FLAGS) & 3) ^ ((REG(A2_FLAGS) & 2) >> 1);
+// a1_pitch = (REG(A1_FLAGS) & 3) ^ ((REG(A1_FLAGS) & 2) >> 1);
+// a2_pitch = (REG(A2_FLAGS) & 3) ^ ((REG(A2_FLAGS) & 2) >> 1);
+ a1_pitch = pitchValue[(REG(A1_FLAGS) & 0x03)];
+ a2_pitch = pitchValue[(REG(A2_FLAGS) & 0x03)];
n_pixels = REG(PIXLINECOUNTER) & 0xFFFF;
n_lines = (REG(PIXLINECOUNTER) >> 16) & 0xFFFF;
a1_x = (REG(A1_PIXEL) << 16) | (REG(A1_FPIXEL) & 0xFFFF);
a1_y = (REG(A1_PIXEL) & 0xFFFF0000) | (REG(A1_FPIXEL) >> 16);
- a1_width = blitter_scanline_width[((REG(A1_FLAGS) & 0x00007E00) >> 9)];
+//According to the JTRM, X is restricted to 15 bits and Y is restricted to 12.
+//But it seems to fuck up T2K! !!! FIX !!!
+//Could it be sign extended??? Doesn't seem to be so according to JTRM
+// a1_x &= 0x7FFFFFFF, a1_y &= 0x0FFFFFFF;
+
+// a1_width = blitter_scanline_width[((REG(A1_FLAGS) & 0x00007E00) >> 9)];
+// According to JTRM, this must give a *whole number* of phrases in the current
+// pixel size (this means the lookup above is WRONG)... !!! FIX !!!
+ UINT32 m = (REG(A1_FLAGS) >> 9) & 0x03, e = (REG(A1_FLAGS) >> 11) & 0x0F;
+ a1_width = ((0x04 | m) << e) >> 2;//*/
a2_x = (REG(A2_PIXEL) & 0x0000FFFF) << 16;
a2_y = (REG(A2_PIXEL) & 0xFFFF0000);
- a2_width = blitter_scanline_width[((REG(A2_FLAGS) & 0x00007E00) >> 9)];
- a2_mask_x = 0xFFFF | ((REG(A2_MASK) & 0x0000FFFF) << 16);
- a2_mask_y = ((REG(A2_MASK) & 0xFFFF0000) | 0xFFFF);
-
- //
+//According to the JTRM, X is restricted to 15 bits and Y is restricted to 12.
+//But it seems to fuck up T2K! !!! FIX !!!
+// a2_x &= 0x7FFFFFFF, a2_y &= 0x0FFFFFFF;
+
+// a2_width = blitter_scanline_width[((REG(A2_FLAGS) & 0x00007E00) >> 9)];
+// According to JTRM, this must give a *whole number* of phrases in the current
+// pixel size (this means the lookup above is WRONG)... !!! FIX !!!
+ m = (REG(A2_FLAGS) >> 9) & 0x03, e = (REG(A2_FLAGS) >> 11) & 0x0F;
+ a2_width = ((0x04 | m) << e) >> 2;//*/
+ a2_mask_x = ((REG(A2_MASK) & 0x0000FFFF) << 16) | 0xFFFF;
+ a2_mask_y = (REG(A2_MASK) & 0xFFFF0000) | 0xFFFF;
+
+ // Check for "use mask" flag
if (!(REG(A2_FLAGS) & 0x8000))
{
a2_mask_x = 0xFFFFFFFF; // must be 16.16
a2_mask_y = 0xFFFFFFFF; // must be 16.16
}
-
+
a1_phrase_mode = 0;
- // determine a1_yadd
- if (YADD1_A1)
- a1_yadd = 1 << 16;
- else
- a1_yadd = 0;
+ // According to the official documentation, a hardware bug ties A2's yadd bit to A1's...
+ a2_yadd = a1_yadd = (YADD1_A1 ? 1 << 16 : 0);
if (YSIGNSUB_A1)
a1_yadd = -a1_yadd;
switch (xadd_a1_control)
{
case XADDPHR:
+// This is a documented Jaguar bug relating to phrase mode and truncation... Look into it!
// add phrase offset to X and truncate
a1_xadd = 1 << 16;
a1_phrase_mode = 1;
if (XSIGNSUB_A1)
a1_xadd = -a1_xadd;
- // determine a2_yadd
- if (YADD1_A2 || YADD1_A1)
- a2_yadd = 1 << 16;
- else
- a2_yadd = 0;
-
if (YSIGNSUB_A2)
a2_yadd = -a2_yadd;
// add zero (for those nice vertical lines)
a2_xadd = 0;
break;
+//This really isn't a valid bit combo for A2... Shouldn't this cause the blitter to just say no?
case XADDINC:
+WriteLog("BLIT: Asked to used invalid bit combo for A2...\n");
// add the contents of the increment register
// since there is no register for a2 we just add 1
- a2_xadd = 1 << 16;
+//Let's do nothing, since it's not listed as a valid bit combo...
+// a2_xadd = 1 << 16;
break;
}
if (XSIGNSUB_A2)
a2_xadd = -a2_xadd;
- // modify outer loop steps based on command
+ // Modify outer loop steps based on blitter command
+
a1_step_x = 0;
a1_step_y = 0;
a2_step_x = 0;
a2_step_y = 0;
- if (cmd & 0x00000100)
- {
- a1_step_x = (REG(A1_FSTEP)&0xffff);
- a1_step_y = (REG(A1_FSTEP)>>16);
- }
- if (cmd & 0x00000200)
- {
- a1_step_x += ((REG(A1_STEP)&0x0000ffff)<<16);
- a1_step_y += ((REG(A1_STEP)&0xffff0000));
- }
- if (cmd & 0x00000400)
- {
- a2_step_x = (REG(A2_STEP)&0x0000ffff)<<16;
- a2_step_y = (REG(A2_STEP)&0xffff0000);
- }
+ if (UPDA1F)
+ a1_step_x = (REG(A1_FSTEP) & 0xFFFF),
+ a1_step_y = (REG(A1_FSTEP) >> 16);
+
+ if (UPDA1)
+ a1_step_x |= ((REG(A1_STEP) & 0x0000FFFF) << 16),
+ a1_step_y |= ((REG(A1_STEP) & 0xFFFF0000));
+
+ if (UPDA2)
+ a2_step_x = (REG(A2_STEP) & 0x0000FFFF) << 16,
+ a2_step_y = (REG(A2_STEP) & 0xFFFF0000);
outer_loop = n_lines;
- a2_psize = 1 << ((REG(A2_FLAGS) >> 3) & 7);
- a1_psize = 1 << ((REG(A1_FLAGS) >> 3) & 7);
+ // Clipping...
+
+ if (CLIPA1)
+ a1_clip_x = REG(A1_CLIP) & 0x7FFF,
+ a1_clip_y = (REG(A1_CLIP) >> 16) & 0x7FFF;
+
+// This phrase sizing is incorrect as well... !!! FIX !!!
+// Err, this is pixel size... (and it's OK)
+ a2_psize = 1 << ((REG(A2_FLAGS) >> 3) & 0x07);
+ a1_psize = 1 << ((REG(A1_FLAGS) >> 3) & 0x07);
// zbuffering
if (GOURZ)
{
- zadd = jaguar_long_read(0xF02274);
+ zadd = JaguarReadLong(0xF02274, BLITTER);
for(int v=0; v<4; v++)
- z_i[v] = (int32)jaguar_long_read(0xF0228C + (v << 2));
+ z_i[v] = (int32)JaguarReadLong(0xF0228C + (v << 2), BLITTER);
}
if (GOURD || GOURZ || SRCSHADE)
{
// gouraud shading
- gouraud_add = jaguar_long_read(0xF02270);
+ gouraud_add = JaguarReadLong(0xF02270, BLITTER);
- gd_c[0] = jaguar_byte_read(0xF02268);
- gd_i[0] = jaguar_byte_read(0xF02269);
+ gd_c[0] = JaguarReadByte(0xF02268, BLITTER);
+ gd_i[0] = JaguarReadByte(0xF02269, BLITTER);
gd_i[0] <<= 16;
- gd_i[0] |= jaguar_word_read(0xF02240);
+ gd_i[0] |= JaguarReadWord(0xF02240, BLITTER);
- gd_c[1] = jaguar_byte_read(0xF0226A);
- gd_i[1] = jaguar_byte_read(0xF0226B);
+ gd_c[1] = JaguarReadByte(0xF0226A, BLITTER);
+ gd_i[1] = JaguarReadByte(0xF0226B, BLITTER);
gd_i[1] <<= 16;
- gd_i[1] |= jaguar_word_read(0xF02242);
+ gd_i[1] |= JaguarReadWord(0xF02242, BLITTER);
- gd_c[2] = jaguar_byte_read(0xF0226C);
- gd_i[2] = jaguar_byte_read(0xF0226D);
+ gd_c[2] = JaguarReadByte(0xF0226C, BLITTER);
+ gd_i[2] = JaguarReadByte(0xF0226D, BLITTER);
gd_i[2] <<= 16;
- gd_i[2] |= jaguar_word_read(0xF02244);
+ gd_i[2] |= JaguarReadWord(0xF02244, BLITTER);
- gd_c[3] = jaguar_byte_read(0xF0226E);
- gd_i[3] = jaguar_byte_read(0xF0226F);
+ gd_c[3] = JaguarReadByte(0xF0226E, BLITTER);
+ gd_i[3] = JaguarReadByte(0xF0226F, BLITTER);
gd_i[3] <<= 16;
- gd_i[3] |= jaguar_word_read(0xF02246);
+ gd_i[3] |= JaguarReadWord(0xF02246, BLITTER);
gd_ia = gouraud_add & 0xFFFFFF;
if (gd_ia & 0x800000)
}
// fix for zoop! and syndicate
- if ((jaguar_mainRom_crc32==0x501be17c)||
+/* if ((jaguar_mainRom_crc32==0x501be17c)||
(jaguar_mainRom_crc32==0x70895c51)||
(jaguar_mainRom_crc32==0x0f1f1497)||
(jaguar_mainRom_crc32==0xfc8f0dcd)
)
{
- if (a1_step_x<0)
- a1_step_x=(-n_pixels)*65536;
+ if (a1_step_x < 0)
+ a1_step_x = (-n_pixels) * 65536;
- if (a2_step_x<0)
- a2_step_x=(-n_pixels)*65536;;
+ if (a2_step_x < 0)
+ a2_step_x = (-n_pixels) * 65536;;
}
else
// fix for wolfenstein 3d
// fix for Tempest 2000
if (jaguar_mainRom_crc32==0x32816d44)
{
-/*
+
if ((n_lines!=1)&&((n_pixels==288)||(n_pixels==384)))
{
- fprintf(log_get(),"Blit!\n");
- fprintf(log_get()," cmd = 0x%.8x\n",cmd);
- fprintf(log_get()," a1_base = %08X\n", a1_addr);
- fprintf(log_get()," a1_pitch = %d\n", a1_pitch);
- fprintf(log_get()," a1_psize = %d\n", a1_psize);
- fprintf(log_get()," a1_width = %d\n", a1_width);
- fprintf(log_get()," a1_xadd = %f (phrase=%d)\n", (float)a1_xadd / 65536.0, a1_phrase_mode);
- fprintf(log_get()," a1_yadd = %f\n", (float)a1_yadd / 65536.0);
- fprintf(log_get()," a1_xstep = %f\n", (float)a1_step_x / 65536.0);
- fprintf(log_get()," a1_ystep = %f\n", (float)a1_step_y / 65536.0);
- fprintf(log_get()," a1_x = %f\n", (float)a1_x / 65536.0);
- fprintf(log_get()," a1_y = %f\n", (float)a1_y / 65536.0);
- fprintf(log_get()," a1_zoffs = %i\n",a1_zoffs);
-
- fprintf(log_get()," a2_base = %08X\n", a2_addr);
- fprintf(log_get()," a2_pitch = %d\n", a2_pitch);
- fprintf(log_get()," a2_psize = %d\n", a2_psize);
- fprintf(log_get()," a2_width = %d\n", a2_width);
- fprintf(log_get()," a2_xadd = %f (phrase=%d)\n", (float)a2_xadd / 65536.0, a2_phrase_mode);
- fprintf(log_get()," a2_yadd = %f\n", (float)a2_yadd / 65536.0);
- fprintf(log_get()," a2_xstep = %f\n", (float)a2_step_x / 65536.0);
- fprintf(log_get()," a2_ystep = %f\n", (float)a2_step_y / 65536.0);
- fprintf(log_get()," a2_x = %f\n", (float)a2_x / 65536.0);
- fprintf(log_get()," a2_y = %f\n", (float)a2_y / 65536.0);
- fprintf(log_get()," a2_mask_x= 0x%.4x\n",a2_mask_x);
- fprintf(log_get()," a2_mask_y= 0x%.4x\n",a2_mask_y);
- fprintf(log_get()," a2_zoffs = %i\n",a2_zoffs);
-
- fprintf(log_get()," count = %d x %d\n", n_pixels, n_lines);
-
- fprintf(log_get()," command = %08X\n", cmd);
- fprintf(log_get()," dsten = %i\n",DSTEN);
- fprintf(log_get()," srcen = %i\n",SRCEN);
- fprintf(log_get()," patdsel = %i\n",PATDSEL);
- fprintf(log_get()," color = 0x%.8x\n",REG(PATTERNDATA));
- fprintf(log_get()," dcompen = %i\n",DCOMPEN);
- fprintf(log_get()," bcompen = %i\n",BCOMPEN);
- fprintf(log_get()," cmpdst = %i\n",CMPDST);
- fprintf(log_get()," GOURZ = %i\n",GOURZ);
- fprintf(log_get()," GOURD = %i\n",GOURD);
- fprintf(log_get()," SRCSHADE = %i\n",SRCSHADE);
- fprintf(log_get()," DSTDATA = 0x%.8x%.8x\n",REG(DSTDATA),REG(DSTDATA+4));
+ WriteLog("Blit!\n");
+ WriteLog(" cmd = 0x%.8x\n",cmd);
+ WriteLog(" a1_base = %08X\n", a1_addr);
+ WriteLog(" a1_pitch = %d\n", a1_pitch);
+ WriteLog(" a1_psize = %d\n", a1_psize);
+ WriteLog(" a1_width = %d\n", a1_width);
+ WriteLog(" a1_xadd = %f (phrase=%d)\n", (float)a1_xadd / 65536.0, a1_phrase_mode);
+ WriteLog(" a1_yadd = %f\n", (float)a1_yadd / 65536.0);
+ WriteLog(" a1_xstep = %f\n", (float)a1_step_x / 65536.0);
+ WriteLog(" a1_ystep = %f\n", (float)a1_step_y / 65536.0);
+ WriteLog(" a1_x = %f\n", (float)a1_x / 65536.0);
+ WriteLog(" a1_y = %f\n", (float)a1_y / 65536.0);
+ WriteLog(" a1_zoffs = %i\n",a1_zoffs);
+
+ WriteLog(" a2_base = %08X\n", a2_addr);
+ WriteLog(" a2_pitch = %d\n", a2_pitch);
+ WriteLog(" a2_psize = %d\n", a2_psize);
+ WriteLog(" a2_width = %d\n", a2_width);
+ WriteLog(" a2_xadd = %f (phrase=%d)\n", (float)a2_xadd / 65536.0, a2_phrase_mode);
+ WriteLog(" a2_yadd = %f\n", (float)a2_yadd / 65536.0);
+ WriteLog(" a2_xstep = %f\n", (float)a2_step_x / 65536.0);
+ WriteLog(" a2_ystep = %f\n", (float)a2_step_y / 65536.0);
+ WriteLog(" a2_x = %f\n", (float)a2_x / 65536.0);
+ WriteLog(" a2_y = %f\n", (float)a2_y / 65536.0);
+ WriteLog(" a2_mask_x= 0x%.4x\n",a2_mask_x);
+ WriteLog(" a2_mask_y= 0x%.4x\n",a2_mask_y);
+ WriteLog(" a2_zoffs = %i\n",a2_zoffs);
+
+ WriteLog(" count = %d x %d\n", n_pixels, n_lines);
+
+ WriteLog(" command = %08X\n", cmd);
+ WriteLog(" dsten = %i\n",DSTEN);
+ WriteLog(" srcen = %i\n",SRCEN);
+ WriteLog(" patdsel = %i\n",PATDSEL);
+ WriteLog(" color = 0x%.8x\n",REG(PATTERNDATA));
+ WriteLog(" dcompen = %i\n",DCOMPEN);
+ WriteLog(" bcompen = %i\n",BCOMPEN);
+ WriteLog(" cmpdst = %i\n",CMPDST);
+ WriteLog(" GOURZ = %i\n",GOURZ);
+ WriteLog(" GOURD = %i\n",GOURD);
+ WriteLog(" SRCSHADE = %i\n",SRCSHADE);
+ WriteLog(" DSTDATA = 0x%.8x%.8x\n",REG(DSTDATA),REG(DSTDATA+4));
}
-*/ }
+ }//*/
#ifdef LOG_BLITS
-// if (start_logging)
+ if (start_logging)
{
- fprintf(log_get(),"Blit!\n");
- fprintf(log_get()," cmd = 0x%.8x\n",cmd);
- fprintf(log_get()," a1_base = %08X\n", a1_addr);
- fprintf(log_get()," a1_pitch = %d\n", a1_pitch);
- fprintf(log_get()," a1_psize = %d\n", a1_psize);
- fprintf(log_get()," a1_width = %d\n", a1_width);
- fprintf(log_get()," a1_xadd = %f (phrase=%d)\n", (float)a1_xadd / 65536.0, a1_phrase_mode);
- fprintf(log_get()," a1_yadd = %f\n", (float)a1_yadd / 65536.0);
- fprintf(log_get()," a1_xstep = %f\n", (float)a1_step_x / 65536.0);
- fprintf(log_get()," a1_ystep = %f\n", (float)a1_step_y / 65536.0);
- fprintf(log_get()," a1_x = %f\n", (float)a1_x / 65536.0);
- fprintf(log_get()," a1_y = %f\n", (float)a1_y / 65536.0);
- fprintf(log_get()," a1_zoffs = %i\n",a1_zoffs);
-
- fprintf(log_get()," a2_base = %08X\n", a2_addr);
- fprintf(log_get()," a2_pitch = %d\n", a2_pitch);
- fprintf(log_get()," a2_psize = %d\n", a2_psize);
- fprintf(log_get()," a2_width = %d\n", a2_width);
- fprintf(log_get()," a2_xadd = %f (phrase=%d)\n", (float)a2_xadd / 65536.0, a2_phrase_mode);
- fprintf(log_get()," a2_yadd = %f\n", (float)a2_yadd / 65536.0);
- fprintf(log_get()," a2_xstep = %f\n", (float)a2_step_x / 65536.0);
- fprintf(log_get()," a2_ystep = %f\n", (float)a2_step_y / 65536.0);
- fprintf(log_get()," a2_x = %f\n", (float)a2_x / 65536.0);
- fprintf(log_get()," a2_y = %f\n", (float)a2_y / 65536.0);
- fprintf(log_get()," a2_mask_x= 0x%.4x\n",a2_mask_x);
- fprintf(log_get()," a2_mask_y= 0x%.4x\n",a2_mask_y);
- fprintf(log_get()," a2_zoffs = %i\n",a2_zoffs);
-
- fprintf(log_get()," count = %d x %d\n", n_pixels, n_lines);
-
- fprintf(log_get()," command = %08X\n", cmd);
- fprintf(log_get()," dsten = %i\n",DSTEN);
- fprintf(log_get()," srcen = %i\n",SRCEN);
- fprintf(log_get()," patdsel = %i\n",PATDSEL);
- fprintf(log_get()," color = 0x%.8x\n",REG(PATTERNDATA));
- fprintf(log_get()," dcompen = %i\n",DCOMPEN);
- fprintf(log_get()," bcompen = %i\n",BCOMPEN);
- fprintf(log_get()," cmpdst = %i\n",CMPDST);
- fprintf(log_get()," GOURZ = %i\n",GOURZ);
- fprintf(log_get()," GOURD = %i\n",GOURD);
- fprintf(log_get()," SRCSHADE= %i\n",SRCSHADE);
+ WriteLog("Blit!\n");
+ WriteLog(" cmd = 0x%.8x\n",cmd);
+ WriteLog(" a1_base = %08X\n", a1_addr);
+ WriteLog(" a1_pitch = %d\n", a1_pitch);
+ WriteLog(" a1_psize = %d\n", a1_psize);
+ WriteLog(" a1_width = %d\n", a1_width);
+ WriteLog(" a1_xadd = %f (phrase=%d)\n", (float)a1_xadd / 65536.0, a1_phrase_mode);
+ WriteLog(" a1_yadd = %f\n", (float)a1_yadd / 65536.0);
+ WriteLog(" a1_xstep = %f\n", (float)a1_step_x / 65536.0);
+ WriteLog(" a1_ystep = %f\n", (float)a1_step_y / 65536.0);
+ WriteLog(" a1_x = %f\n", (float)a1_x / 65536.0);
+ WriteLog(" a1_y = %f\n", (float)a1_y / 65536.0);
+ WriteLog(" a1_zoffs = %i\n",a1_zoffs);
+
+ WriteLog(" a2_base = %08X\n", a2_addr);
+ WriteLog(" a2_pitch = %d\n", a2_pitch);
+ WriteLog(" a2_psize = %d\n", a2_psize);
+ WriteLog(" a2_width = %d\n", a2_width);
+ WriteLog(" a2_xadd = %f (phrase=%d)\n", (float)a2_xadd / 65536.0, a2_phrase_mode);
+ WriteLog(" a2_yadd = %f\n", (float)a2_yadd / 65536.0);
+ WriteLog(" a2_xstep = %f\n", (float)a2_step_x / 65536.0);
+ WriteLog(" a2_ystep = %f\n", (float)a2_step_y / 65536.0);
+ WriteLog(" a2_x = %f\n", (float)a2_x / 65536.0);
+ WriteLog(" a2_y = %f\n", (float)a2_y / 65536.0);
+ WriteLog(" a2_mask_x= 0x%.4x\n",a2_mask_x);
+ WriteLog(" a2_mask_y= 0x%.4x\n",a2_mask_y);
+ WriteLog(" a2_zoffs = %i\n",a2_zoffs);
+
+ WriteLog(" count = %d x %d\n", n_pixels, n_lines);
+
+ WriteLog(" command = %08X\n", cmd);
+ WriteLog(" dsten = %i\n",DSTEN);
+ WriteLog(" srcen = %i\n",SRCEN);
+ WriteLog(" patdsel = %i\n",PATDSEL);
+ WriteLog(" color = 0x%.8x\n",REG(PATTERNDATA));
+ WriteLog(" dcompen = %i\n",DCOMPEN);
+ WriteLog(" bcompen = %i\n",BCOMPEN);
+ WriteLog(" cmpdst = %i\n",CMPDST);
+ WriteLog(" GOURZ = %i\n",GOURZ);
+ WriteLog(" GOURD = %i\n",GOURD);
+ WriteLog(" SRCSHADE= %i\n",SRCSHADE);
}
#endif
- blitter_working = 1;
-#ifndef USE_GENERIC_BLITTER
- if (!blitter_execute_cached_code(blitter_in_cache(cmd)))
-#endif
- blitter_generic(cmd);
- blitter_working = 0;
+extern int blit_start_log;
+extern int op_start_log;
+if (blit_start_log)
+{
+ char * ctrlStr[4] = { "XADDPHR\0", "XADDPIX\0", "XADD0\0", "XADDINC\0" };
+ char * bppStr[8] = { "1bpp\0", "2bpp\0", "4bpp\0", "8bpp\0", "16bpp\0", "32bpp\0", "???\0", "!!!\0" };
+ char * opStr[16] = { "LFU_CLEAR", "LFU_NSAND", "LFU_NSAD", "LFU_NOTS", "LFU_SAND", "LFU_NOTD", "LFU_N_SXORD", "LFU_NSORND",
+ "LFU_SAD", "LFU_XOR", "LFU_D", "LFU_NSORD", "LFU_REPLACE", "LFU_SORND", "LFU_SORD", "LFU_ONE" };
+ uint32 src = cmd & 0x07, dst = (cmd >> 3) & 0x07, misc = (cmd >> 6) & 0x03,
+ a1ctl = (cmd >> 8) & 0x07, mode = (cmd >> 11) & 0x07, ity = (cmd >> 14) & 0x0F,
+ zop = (cmd >> 18) & 0x07, op = (cmd >> 21) & 0x0F, ctrl = (cmd >> 25) & 0x3F;
+ UINT32 a1f = REG(A1_FLAGS), a2f = REG(A2_FLAGS);
+ uint32 p1 = a1f & 0x07, p2 = a2f & 0x07,
+ d1 = (a1f >> 3) & 0x07, d2 = (a2f >> 3) & 0x07,
+ zo1 = (a1f >> 6) & 0x07, zo2 = (a2f >> 6) & 0x07,
+ w1 = (a1f >> 9) & 0x3F, w2 = (a2f >> 9) & 0x3F,
+ ac1 = (a1f >> 16) & 0x1F, ac2 = (a2f >> 16) & 0x1F;
+ UINT32 iw1 = ((0x04 | (w1 & 0x03)) << ((w1 & 0x3C) >> 2)) >> 2;
+ UINT32 iw2 = ((0x04 | (w2 & 0x03)) << ((w2 & 0x3C) >> 2)) >> 2;
+ WriteLog("Blit! (%08X %s %08X) count: %d x %d, A1/2_FLAGS: %08X/%08X [cmd: %08X]\n", a1_addr, (mode&0x01 ? "->" : "<-"), a2_addr, n_pixels, n_lines, a1f, a2f, cmd);
+// WriteLog(" CMD -> src: %d, dst: %d, misc: %d, a1ctl: %d, mode: %d, ity: %1X, z-op: %d, op: %1X, ctrl: %02X\n", src, dst, misc, a1ctl, mode, ity, zop, op, ctrl);
+
+ WriteLog(" CMD -> src: %s%s%s ", (cmd & 0x0001 ? "SRCEN " : ""), (cmd & 0x0002 ? "SRCENZ " : ""), (cmd & 0x0004 ? "SRCENX" : ""));
+ WriteLog("dst: %s%s%s ", (cmd & 0x0008 ? "DSTEN " : ""), (cmd & 0x0010 ? "DSTENZ " : ""), (cmd & 0x0020 ? "DSTWRZ" : ""));
+ WriteLog("misc: %s%s ", (cmd & 0x0040 ? "CLIP_A1 " : ""), (cmd & 0x0080 ? "???" : ""));
+ WriteLog("a1ctl: %s%s%s ", (cmd & 0x0100 ? "UPDA1F " : ""), (cmd & 0x0200 ? "UPDA1 " : ""), (cmd & 0x0400 ? "UPDA2" : ""));
+ WriteLog("mode: %s%s%s ", (cmd & 0x0800 ? "DSTA2 " : ""), (cmd & 0x1000 ? "GOURD " : ""), (cmd & 0x2000 ? "ZBUFF" : ""));
+ WriteLog("ity: %s%s%s ", (cmd & 0x4000 ? "TOPBEN " : ""), (cmd & 0x8000 ? "TOPNEN " : ""), (cmd & 0x00010000 ? "PATDSEL" : ""));
+ WriteLog("z-op: %s%s%s ", (cmd & 0x00040000 ? "ZMODELT " : ""), (cmd & 0x00080000 ? "ZMODEEQ " : ""), (cmd & 0x00100000 ? "ZMODEGT" : ""));
+ WriteLog("op: %s ", opStr[(cmd >> 21) & 0x0F]);
+ WriteLog("ctrl: %s%s%s%s%s%s\n", (cmd & 0x02000000 ? "CMPDST " : ""), (cmd & 0x04000000 ? "BCOMPEN " : ""), (cmd & 0x08000000 ? "DCOMPEN " : ""), (cmd & 0x10000000 ? "BKGWREN " : ""), (cmd & 0x20000000 ? "BUSHI " : ""), (cmd & 0x40000000 ? "SRCSHADE" : ""));
+
+ if (UPDA2)
+ {
+ WriteLog(" A2 step values: %d (X), %d (Y) [mask (%sused): %08X - %08X/%08X]\n", a2_step_x >> 16, a2_step_y >> 16, (a2f & 0x8000 ? "" : "un"), REG(A2_MASK), a2_mask_x, a2_mask_y);
+ }
+
+ WriteLog(" A1 -> pitch: %d phrases, depth: %s, z-off: %d, width: %d (%02X), addctl: %s %s %s %s\n", 1 << p1, bppStr[d1], zo1, iw1, w1, ctrlStr[ac1&0x03], (ac1&0x04 ? "YADD1" : "YADD0"), (ac1&0x08 ? "XSIGNSUB" : "XSIGNADD"), (ac1&0x10 ? "YSIGNSUB" : "YSIGNADD"));
+ WriteLog(" A2 -> pitch: %d phrases, depth: %s, z-off: %d, width: %d (%02X), addctl: %s %s %s %s\n", 1 << p2, bppStr[d2], zo2, iw2, w2, ctrlStr[ac2&0x03], (ac2&0x04 ? "YADD1" : "YADD0"), (ac2&0x08 ? "XSIGNSUB" : "XSIGNADD"), (ac2&0x10 ? "YSIGNSUB" : "YSIGNADD"));
+ WriteLog(" A1 x/y: %d/%d, A2 x/y: %d/%d\n", a1_x >> 16, a1_y >> 16, a2_x >> 16, a2_y >> 16);
+// blit_start_log = 0;
+// op_start_log = 1;
}
-uint32 blitter_reg_read(uint32 offset)
+ blitter_working = 1;
+//#ifndef USE_GENERIC_BLITTER
+// if (!blitter_execute_cached_code(blitter_in_cache(cmd)))
+//#endif
+ blitter_generic(cmd);
+
+/*if (blit_start_log)
{
- uint32 data = blitter_ram[offset];
- data <<= 8;
- data |= blitter_ram[offset+1];
- data <<= 8;
- data |= blitter_ram[offset+2];
- data <<= 8;
- data |= blitter_ram[offset+3];
- return data;
+ if (a1_addr == 0xF03000 && a2_addr == 0x004D58)
+ {
+ WriteLog("\nBytes at 004D58:\n");
+ for(int i=0x004D58; i<0x004D58+(10*127*4); i++)
+ WriteLog("%02X ", JaguarReadByte(i));
+ WriteLog("\nBytes at F03000:\n");
+ for(int i=0xF03000; i<0xF03000+(6*127*4); i++)
+ WriteLog("%02X ", JaguarReadByte(i));
+ WriteLog("\n\n");
+ }
+}//*/
+
+ blitter_working = 0;
}
-void blitter_reg_write(uint32 offset, uint32 data)
+void blitter_init(void)
{
- blitter_ram[offset+0] = (data>>24) & 0xFF;
- blitter_ram[offset+1] = (data>>16) & 0xFF;
- blitter_ram[offset+2] = (data>>8) & 0xFF;
- blitter_ram[offset+3] = data & 0xFF;
+ blitter_reset();
}
-uint32 blitter_long_read(uint32 offset)
+void blitter_reset(void)
{
- return (blitter_word_read(offset) << 16) | blitter_word_read(offset+2);
+ memset(blitter_ram, 0x00, 0xA0);
}
-void blitter_long_write(uint32 offset, uint32 data)
+void blitter_done(void)
{
- blitter_word_write(offset, data >> 16);
- blitter_word_write(offset+2, data & 0xFFFF);
+ WriteLog("BLIT: Done.\n");
}
-void blitter_init(void)
+uint8 BlitterReadByte(uint32 offset, uint32 who/*=UNKNOWN*/)
{
- if (!blitter_cache_init)
- {
- for (int i=0;i<256;i++)
- {
- blitter_cache[i] = (struct s_blitter_cache *)malloc(sizeof(struct s_blitter_cache));
- blitter_cache[i]->next=null;
- blitter_cache[i]->prev=null;
- }
- blitter_cache_init = 1;
- }
-#ifndef USE_GENERIC_BLITTER
- #include "include/blit_i.h"
-#endif
+ offset &= 0xFF;
- blitter_reset();
-#ifdef GEN_CODE
- blitters_code_fp = fopen("include/blit_c.h","awrt");
- blitters_code_init_fp = fopen("include/blit_i.h","awrt");
-#endif
+ // status register
+ if (offset == (0x38 + 3))
+ return 0x01; // always idle
+
+ return blitter_ram[offset];
}
-void blitter_reset(void)
+uint16 BlitterReadWord(uint32 offset, uint32 who/*=UNKNOWN*/)
{
- memset(blitter_ram, 0x00, 0xA0);
+ return ((uint16)BlitterReadByte(offset, who) << 8) | (uint16)BlitterReadByte(offset+1, who);
}
-void blitter_done(void)
+uint32 BlitterReadLong(uint32 offset, uint32 who/*=UNKNOWN*/)
{
-// blitter_list();
-#ifdef GEN_CODE
- fclose(blitters_code_fp);
- fclose(blitters_code_init_fp);
-#endif
- fprintf(log_get(), "BLIT: Done.\n");
+ return (BlitterReadWord(offset, who) << 16) | BlitterReadWord(offset+2, who);
}
-void blitter_byte_write(uint32 offset, uint8 data)
+void BlitterWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/)
{
+/*if (offset & 0xFF == 0x7B)
+ WriteLog("--> Wrote to B_STOP: value -> %02X\n", data);*/
offset &= 0xFF;
- if ((offset >= 0x7C) && (offset <= 0x9B))
+// if ((offset >= 0x7C) && (offset <= 0x9B))
+ if ((offset >= 0x7C) && (offset <= 0x8B))
{
switch (offset)
{
case 0x88: break;
case 0x89: blitter_ram[0x6F] = data; break;
- case 0x9A: blitter_ram[0x46] = data; break;
- case 0x9B: blitter_ram[0x47] = data; break;
+//Mistyped?
+// case 0x9A: blitter_ram[0x46] = data; break;
+// case 0x9B: blitter_ram[0x47] = data; break;
+ case 0x8A: blitter_ram[0x46] = data; break;
+ case 0x8B: blitter_ram[0x47] = data; break;
}
}
blitter_ram[offset] = data;
}
-void blitter_word_write(uint32 offset, uint16 data)
+void BlitterWriteWord(uint32 offset, uint16 data, uint32 who/*=UNKNOWN*/)
{
- blitter_byte_write(offset+0, (data>>8) & 0xFF);
- blitter_byte_write(offset+1, data & 0xFF);
+ BlitterWriteByte(offset+0, (data>>8) & 0xFF, who);
+ BlitterWriteByte(offset+1, data & 0xFF, who);
if ((offset & 0xFF) == 0x3A)
- {
- uint32 cmd = blitter_ram[0x38];
- cmd <<= 8;
- cmd |= blitter_ram[0x39];
- cmd <<= 8;
- cmd |= blitter_ram[0x3A];
- cmd <<= 8;
- cmd |= blitter_ram[0x3B];
-
- blitter_blit(cmd);
- }
-}
-
-uint8 blitter_byte_read(uint32 offset)
-{
- offset &= 0xFF;
-
- // status register
- if (offset == (0x38+3))
- return 0x01; // always idle
-
- return blitter_ram[offset];
+ // I.e., the second write of 32-bit value--not convinced this is the best way to do this!
+ // But then again, according to the Jaguar docs, this is correct...!
+ blitter_blit(GET32(blitter_ram, 0x38));
+// Testing purposes only!
+//This does the clipping correctly, but not the Gouraud shading...
+// blitter2_exec(GET32(blitter_ram, 0x38));
}
+//F02278,9,A,B
-uint16 blitter_word_read(uint32 offset)
+void BlitterWriteLong(uint32 offset, uint32 data, uint32 who/*=UNKNOWN*/)
{
- return (blitter_byte_read(offset) << 8) | blitter_byte_read(offset+1);
+ BlitterWriteWord(offset, data >> 16, who);
+ BlitterWriteWord(offset+2, data & 0xFFFF, who);
}
projects / virtualjaguar / blobdiff