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      1 /*
      2  * Copyright 2008 Corbin Simpson <MostAwesomeDude (at) gmail.com>
      3  *
      4  * All Rights Reserved.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining
      7  * a copy of this software and associated documentation files (the
      8  * "Software"), to deal in the Software without restriction, including
      9  * without limitation the rights to use, copy, modify, merge, publish,
     10  * distribute, sublicense, and/or sell copies of the Software, and to
     11  * permit persons to whom the Software is furnished to do so, subject to
     12  * the following conditions:
     13  *
     14  * The above copyright notice and this permission notice (including the
     15  * next paragraph) shall be included in all copies or substantial
     16  * portions of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     21  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
     22  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     23  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     24  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     25  *
     26  */
     27 
     28 #include "r500_fragprog.h"
     29 
     30 #include <stdio.h>
     31 
     32 #include "radeon_compiler_util.h"
     33 #include "radeon_list.h"
     34 #include "radeon_variable.h"
     35 #include "../r300_reg.h"
     36 
     37 /**
     38  * Rewrite IF instructions to use the ALU result special register.
     39  */
     40 int r500_transform_IF(
     41 	struct radeon_compiler * c,
     42 	struct rc_instruction * inst_if,
     43 	void *data)
     44 {
     45 	struct rc_variable * writer;
     46 	struct rc_list * writer_list, * list_ptr;
     47 	struct rc_list * var_list = rc_get_variables(c);
     48 	unsigned int generic_if = 0;
     49 	unsigned int alu_chan;
     50 
     51 	if (inst_if->U.I.Opcode != RC_OPCODE_IF) {
     52 		return 0;
     53 	}
     54 
     55 	writer_list = rc_variable_list_get_writers(
     56 			var_list, inst_if->Type, &inst_if->U.I.SrcReg[0]);
     57 	if (!writer_list) {
     58 		generic_if = 1;
     59 	} else {
     60 
     61 		/* Make sure it is safe for the writers to write to
     62 		 * ALU Result */
     63 		for (list_ptr = writer_list; list_ptr;
     64 						list_ptr = list_ptr->Next) {
     65 			struct rc_instruction * inst;
     66 			writer = list_ptr->Item;
     67 			/* We are going to modify the destination register
     68 			 * of writer, so if it has a reader other than
     69 			 * inst_if (aka ReaderCount > 1) we must fall back to
     70 			 * our generic IF.
     71 			 * If the writer has a lower IP than inst_if, this
     72 			 * means that inst_if is above the writer in a loop.
     73 			 * I'm not sure why this would ever happen, but
     74 			 * if it does we want to make sure we fall back
     75 			 * to our generic IF. */
     76 			if (writer->ReaderCount > 1 || writer->Inst->IP < inst_if->IP) {
     77 				generic_if = 1;
     78 				break;
     79 			}
     80 
     81 			/* The ALU Result is not preserved across IF
     82 			 * instructions, so if there is another IF
     83 			 * instruction between writer and inst_if, then
     84 			 * we need to fall back to generic IF. */
     85 			for (inst = writer->Inst; inst != inst_if; inst = inst->Next) {
     86 				const struct rc_opcode_info * info =
     87 					rc_get_opcode_info(inst->U.I.Opcode);
     88 				if (info->IsFlowControl) {
     89 					generic_if = 1;
     90 					break;
     91 				}
     92 			}
     93 			if (generic_if) {
     94 				break;
     95 			}
     96 		}
     97 	}
     98 
     99 	if (GET_SWZ(inst_if->U.I.SrcReg[0].Swizzle, 0) == RC_SWIZZLE_X) {
    100 		alu_chan = RC_ALURESULT_X;
    101 	} else {
    102 		alu_chan = RC_ALURESULT_W;
    103 	}
    104 	if (generic_if) {
    105 		struct rc_instruction * inst_mov =
    106 				rc_insert_new_instruction(c, inst_if->Prev);
    107 
    108 		inst_mov->U.I.Opcode = RC_OPCODE_MOV;
    109 		inst_mov->U.I.DstReg.WriteMask = 0;
    110 		inst_mov->U.I.DstReg.File = RC_FILE_NONE;
    111 		inst_mov->U.I.ALUResultCompare = RC_COMPARE_FUNC_NOTEQUAL;
    112 		inst_mov->U.I.WriteALUResult = alu_chan;
    113 		inst_mov->U.I.SrcReg[0] = inst_if->U.I.SrcReg[0];
    114 		if (alu_chan == RC_ALURESULT_X) {
    115 			inst_mov->U.I.SrcReg[0].Swizzle = combine_swizzles4(
    116 					inst_mov->U.I.SrcReg[0].Swizzle,
    117 					RC_SWIZZLE_X, RC_SWIZZLE_UNUSED,
    118 					RC_SWIZZLE_UNUSED, RC_SWIZZLE_UNUSED);
    119 		} else {
    120 			inst_mov->U.I.SrcReg[0].Swizzle = combine_swizzles4(
    121 					inst_mov->U.I.SrcReg[0].Swizzle,
    122 					RC_SWIZZLE_UNUSED, RC_SWIZZLE_UNUSED,
    123 					RC_SWIZZLE_UNUSED, RC_SWIZZLE_Z);
    124 		}
    125 	} else {
    126 		rc_compare_func compare_func = RC_COMPARE_FUNC_NEVER;
    127 		unsigned int reverse_srcs = 0;
    128 		unsigned int preserve_opcode = 0;
    129 		for (list_ptr = writer_list; list_ptr;
    130 						list_ptr = list_ptr->Next) {
    131 			writer = list_ptr->Item;
    132 			switch(writer->Inst->U.I.Opcode) {
    133 			case RC_OPCODE_SEQ:
    134 				compare_func = RC_COMPARE_FUNC_EQUAL;
    135 				break;
    136 			case RC_OPCODE_SNE:
    137 				compare_func = RC_COMPARE_FUNC_NOTEQUAL;
    138 				break;
    139 			case RC_OPCODE_SLE:
    140 				reverse_srcs = 1;
    141 				/* Fall through */
    142 			case RC_OPCODE_SGE:
    143 				compare_func = RC_COMPARE_FUNC_GEQUAL;
    144 				break;
    145 			case RC_OPCODE_SGT:
    146 				reverse_srcs = 1;
    147 				/* Fall through */
    148 			case RC_OPCODE_SLT:
    149 				compare_func = RC_COMPARE_FUNC_LESS;
    150 				break;
    151 			default:
    152 				compare_func = RC_COMPARE_FUNC_NOTEQUAL;
    153 				preserve_opcode = 1;
    154 				break;
    155 			}
    156 			if (!preserve_opcode) {
    157 				writer->Inst->U.I.Opcode = RC_OPCODE_SUB;
    158 			}
    159 			writer->Inst->U.I.DstReg.WriteMask = 0;
    160 			writer->Inst->U.I.DstReg.File = RC_FILE_NONE;
    161 			writer->Inst->U.I.WriteALUResult = alu_chan;
    162 			writer->Inst->U.I.ALUResultCompare = compare_func;
    163 			if (reverse_srcs) {
    164 				struct rc_src_register temp_src;
    165 				temp_src = writer->Inst->U.I.SrcReg[0];
    166 				writer->Inst->U.I.SrcReg[0] =
    167 					writer->Inst->U.I.SrcReg[1];
    168 				writer->Inst->U.I.SrcReg[1] = temp_src;
    169 			}
    170 		}
    171 	}
    172 
    173 	inst_if->U.I.SrcReg[0].File = RC_FILE_SPECIAL;
    174 	inst_if->U.I.SrcReg[0].Index = RC_SPECIAL_ALU_RESULT;
    175 	inst_if->U.I.SrcReg[0].Swizzle = RC_MAKE_SWIZZLE(
    176 				RC_SWIZZLE_X, RC_SWIZZLE_UNUSED,
    177 				RC_SWIZZLE_UNUSED, RC_SWIZZLE_UNUSED);
    178 	inst_if->U.I.SrcReg[0].Negate = 0;
    179 
    180 	return 1;
    181 }
    182 
    183 static int r500_swizzle_is_native(rc_opcode opcode, struct rc_src_register reg)
    184 {
    185 	unsigned int relevant;
    186 	int i;
    187 
    188 	if (opcode == RC_OPCODE_TEX ||
    189 	    opcode == RC_OPCODE_TXB ||
    190 	    opcode == RC_OPCODE_TXP ||
    191 	    opcode == RC_OPCODE_TXD ||
    192 	    opcode == RC_OPCODE_TXL ||
    193 	    opcode == RC_OPCODE_KIL) {
    194 		if (reg.Abs)
    195 			return 0;
    196 
    197 		if (opcode == RC_OPCODE_KIL && (reg.Swizzle != RC_SWIZZLE_XYZW || reg.Negate != RC_MASK_NONE))
    198 			return 0;
    199 
    200 		for(i = 0; i < 4; ++i) {
    201 			unsigned int swz = GET_SWZ(reg.Swizzle, i);
    202 			if (swz == RC_SWIZZLE_UNUSED) {
    203 				reg.Negate &= ~(1 << i);
    204 				continue;
    205 			}
    206 			if (swz >= 4)
    207 				return 0;
    208 		}
    209 
    210 		if (reg.Negate)
    211 			return 0;
    212 
    213 		return 1;
    214 	} else if (opcode == RC_OPCODE_DDX || opcode == RC_OPCODE_DDY) {
    215 		/* DDX/MDH and DDY/MDV explicitly ignore incoming swizzles;
    216 		 * if it doesn't fit perfectly into a .xyzw case... */
    217 		if (reg.Swizzle == RC_SWIZZLE_XYZW && !reg.Abs && !reg.Negate)
    218 			return 1;
    219 
    220 		return 0;
    221 	} else if (reg.File == RC_FILE_INLINE) {
    222 		return 1;
    223 	} else {
    224 		/* ALU instructions support almost everything */
    225 		relevant = 0;
    226 		for(i = 0; i < 3; ++i) {
    227 			unsigned int swz = GET_SWZ(reg.Swizzle, i);
    228 			if (swz != RC_SWIZZLE_UNUSED && swz != RC_SWIZZLE_ZERO)
    229 				relevant |= 1 << i;
    230 		}
    231 		if ((reg.Negate & relevant) && ((reg.Negate & relevant) != relevant))
    232 			return 0;
    233 
    234 		return 1;
    235 	}
    236 }
    237 
    238 /**
    239  * Split source register access.
    240  *
    241  * The only thing we *cannot* do in an ALU instruction is per-component
    242  * negation.
    243  */
    244 static void r500_swizzle_split(struct rc_src_register src, unsigned int usemask,
    245 		struct rc_swizzle_split * split)
    246 {
    247 	unsigned int negatebase[2] = { 0, 0 };
    248 	int i;
    249 
    250 	for(i = 0; i < 4; ++i) {
    251 		unsigned int swz = GET_SWZ(src.Swizzle, i);
    252 		if (swz == RC_SWIZZLE_UNUSED || !GET_BIT(usemask, i))
    253 			continue;
    254 		negatebase[GET_BIT(src.Negate, i)] |= 1 << i;
    255 	}
    256 
    257 	split->NumPhases = 0;
    258 
    259 	for(i = 0; i <= 1; ++i) {
    260 		if (!negatebase[i])
    261 			continue;
    262 
    263 		split->Phase[split->NumPhases++] = negatebase[i];
    264 	}
    265 }
    266 
    267 struct rc_swizzle_caps r500_swizzle_caps = {
    268 	.IsNative = r500_swizzle_is_native,
    269 	.Split = r500_swizzle_split
    270 };
    271 
    272 static char *toswiz(int swiz_val) {
    273   switch(swiz_val) {
    274   case 0: return "R";
    275   case 1: return "G";
    276   case 2: return "B";
    277   case 3: return "A";
    278   case 4: return "0";
    279   case 5: return "H";
    280   case 6: return "1";
    281   case 7: return "U";
    282   }
    283   return NULL;
    284 }
    285 
    286 static char *toop(int op_val)
    287 {
    288   char *str = NULL;
    289   switch (op_val) {
    290   case 0: str = "MAD"; break;
    291   case 1: str = "DP3"; break;
    292   case 2: str = "DP4"; break;
    293   case 3: str = "D2A"; break;
    294   case 4: str = "MIN"; break;
    295   case 5: str = "MAX"; break;
    296   case 6: str = "Reserved"; break;
    297   case 7: str = "CND"; break;
    298   case 8: str = "CMP"; break;
    299   case 9: str = "FRC"; break;
    300   case 10: str = "SOP"; break;
    301   case 11: str = "MDH"; break;
    302   case 12: str = "MDV"; break;
    303   }
    304   return str;
    305 }
    306 
    307 static char *to_alpha_op(int op_val)
    308 {
    309   char *str = NULL;
    310   switch (op_val) {
    311   case 0: str = "MAD"; break;
    312   case 1: str = "DP"; break;
    313   case 2: str = "MIN"; break;
    314   case 3: str = "MAX"; break;
    315   case 4: str = "Reserved"; break;
    316   case 5: str = "CND"; break;
    317   case 6: str = "CMP"; break;
    318   case 7: str = "FRC"; break;
    319   case 8: str = "EX2"; break;
    320   case 9: str = "LN2"; break;
    321   case 10: str = "RCP"; break;
    322   case 11: str = "RSQ"; break;
    323   case 12: str = "SIN"; break;
    324   case 13: str = "COS"; break;
    325   case 14: str = "MDH"; break;
    326   case 15: str = "MDV"; break;
    327   }
    328   return str;
    329 }
    330 
    331 static char *to_mask(int val)
    332 {
    333   char *str = NULL;
    334   switch(val) {
    335   case 0: str = "NONE"; break;
    336   case 1: str = "R"; break;
    337   case 2: str = "G"; break;
    338   case 3: str = "RG"; break;
    339   case 4: str = "B"; break;
    340   case 5: str = "RB"; break;
    341   case 6: str = "GB"; break;
    342   case 7: str = "RGB"; break;
    343   case 8: str = "A"; break;
    344   case 9: str = "AR"; break;
    345   case 10: str = "AG"; break;
    346   case 11: str = "ARG"; break;
    347   case 12: str = "AB"; break;
    348   case 13: str = "ARB"; break;
    349   case 14: str = "AGB"; break;
    350   case 15: str = "ARGB"; break;
    351   }
    352   return str;
    353 }
    354 
    355 static char *to_texop(int val)
    356 {
    357   switch(val) {
    358   case 0: return "NOP";
    359   case 1: return "LD";
    360   case 2: return "TEXKILL";
    361   case 3: return "PROJ";
    362   case 4: return "LODBIAS";
    363   case 5: return "LOD";
    364   case 6: return "DXDY";
    365   }
    366   return NULL;
    367 }
    368 
    369 void r500FragmentProgramDump(struct radeon_compiler *c, void *user)
    370 {
    371   struct r300_fragment_program_compiler *compiler = (struct r300_fragment_program_compiler*)c;
    372   struct r500_fragment_program_code *code = &compiler->code->code.r500;
    373   int n, i;
    374   uint32_t inst;
    375   uint32_t inst0;
    376   char *str = NULL;
    377   fprintf(stderr, "R500 Fragment Program:\n--------\n");
    378 
    379   for (n = 0; n < code->inst_end+1; n++) {
    380     inst0 = inst = code->inst[n].inst0;
    381     fprintf(stderr,"%d\t0:CMN_INST   0x%08x:", n, inst);
    382     switch(inst & 0x3) {
    383     case R500_INST_TYPE_ALU: str = "ALU"; break;
    384     case R500_INST_TYPE_OUT: str = "OUT"; break;
    385     case R500_INST_TYPE_FC: str = "FC"; break;
    386     case R500_INST_TYPE_TEX: str = "TEX"; break;
    387     };
    388     fprintf(stderr,"%s %s %s %s %s ", str,
    389 	    inst & R500_INST_TEX_SEM_WAIT ? "TEX_WAIT" : "",
    390 	    inst & R500_INST_LAST ? "LAST" : "",
    391 	    inst & R500_INST_NOP ? "NOP" : "",
    392 	    inst & R500_INST_ALU_WAIT ? "ALU WAIT" : "");
    393     fprintf(stderr,"wmask: %s omask: %s\n", to_mask((inst >> 11) & 0xf),
    394 	    to_mask((inst >> 15) & 0xf));
    395 
    396     switch(inst0 & 0x3) {
    397     case R500_INST_TYPE_ALU:
    398     case R500_INST_TYPE_OUT:
    399       fprintf(stderr,"\t1:RGB_ADDR   0x%08x:", code->inst[n].inst1);
    400       inst = code->inst[n].inst1;
    401 
    402       fprintf(stderr,"Addr0: %d%c, Addr1: %d%c, Addr2: %d%c, srcp:%d\n",
    403 	      inst & 0xff, (inst & (1<<8)) ? 'c' : 't',
    404 	      (inst >> 10) & 0xff, (inst & (1<<18)) ? 'c' : 't',
    405 	      (inst >> 20) & 0xff, (inst & (1<<28)) ? 'c' : 't',
    406 	      (inst >> 30));
    407 
    408       fprintf(stderr,"\t2:ALPHA_ADDR 0x%08x:", code->inst[n].inst2);
    409       inst = code->inst[n].inst2;
    410       fprintf(stderr,"Addr0: %d%c, Addr1: %d%c, Addr2: %d%c, srcp:%d\n",
    411 	      inst & 0xff, (inst & (1<<8)) ? 'c' : 't',
    412 	      (inst >> 10) & 0xff, (inst & (1<<18)) ? 'c' : 't',
    413 	      (inst >> 20) & 0xff, (inst & (1<<28)) ? 'c' : 't',
    414 	      (inst >> 30));
    415       fprintf(stderr,"\t3 RGB_INST:  0x%08x:", code->inst[n].inst3);
    416       inst = code->inst[n].inst3;
    417       fprintf(stderr,"rgb_A_src:%d %s/%s/%s %d rgb_B_src:%d %s/%s/%s %d targ: %d\n",
    418 	      (inst) & 0x3, toswiz((inst >> 2) & 0x7), toswiz((inst >> 5) & 0x7), toswiz((inst >> 8) & 0x7),
    419 	      (inst >> 11) & 0x3,
    420 	      (inst >> 13) & 0x3, toswiz((inst >> 15) & 0x7), toswiz((inst >> 18) & 0x7), toswiz((inst >> 21) & 0x7),
    421 	      (inst >> 24) & 0x3, (inst >> 29) & 0x3);
    422 
    423 
    424       fprintf(stderr,"\t4 ALPHA_INST:0x%08x:", code->inst[n].inst4);
    425       inst = code->inst[n].inst4;
    426       fprintf(stderr,"%s dest:%d%s alp_A_src:%d %s %d alp_B_src:%d %s %d targ %d w:%d\n", to_alpha_op(inst & 0xf),
    427 	      (inst >> 4) & 0x7f, inst & (1<<11) ? "(rel)":"",
    428 	      (inst >> 12) & 0x3, toswiz((inst >> 14) & 0x7), (inst >> 17) & 0x3,
    429 	      (inst >> 19) & 0x3, toswiz((inst >> 21) & 0x7), (inst >> 24) & 0x3,
    430 	      (inst >> 29) & 0x3,
    431 	      (inst >> 31) & 0x1);
    432 
    433       fprintf(stderr,"\t5 RGBA_INST: 0x%08x:", code->inst[n].inst5);
    434       inst = code->inst[n].inst5;
    435       fprintf(stderr,"%s dest:%d%s rgb_C_src:%d %s/%s/%s %d alp_C_src:%d %s %d\n", toop(inst & 0xf),
    436 	      (inst >> 4) & 0x7f, inst & (1<<11) ? "(rel)":"",
    437 	      (inst >> 12) & 0x3, toswiz((inst >> 14) & 0x7), toswiz((inst >> 17) & 0x7), toswiz((inst >> 20) & 0x7),
    438 	      (inst >> 23) & 0x3,
    439 	      (inst >> 25) & 0x3, toswiz((inst >> 27) & 0x7), (inst >> 30) & 0x3);
    440       break;
    441     case R500_INST_TYPE_FC:
    442       fprintf(stderr, "\t2:FC_INST    0x%08x:", code->inst[n].inst2);
    443       inst = code->inst[n].inst2;
    444       /* JUMP_FUNC JUMP_ANY*/
    445       fprintf(stderr, "0x%02x %1x ", inst >> 8 & 0xff,
    446           (inst & R500_FC_JUMP_ANY) >> 5);
    447 
    448       /* OP */
    449       switch(inst & 0x7){
    450       case R500_FC_OP_JUMP:
    451       	fprintf(stderr, "JUMP");
    452         break;
    453       case R500_FC_OP_LOOP:
    454         fprintf(stderr, "LOOP");
    455         break;
    456       case R500_FC_OP_ENDLOOP:
    457         fprintf(stderr, "ENDLOOP");
    458         break;
    459       case R500_FC_OP_REP:
    460         fprintf(stderr, "REP");
    461         break;
    462       case R500_FC_OP_ENDREP:
    463         fprintf(stderr, "ENDREP");
    464         break;
    465       case R500_FC_OP_BREAKLOOP:
    466         fprintf(stderr, "BREAKLOOP");
    467         break;
    468       case R500_FC_OP_BREAKREP:
    469         fprintf(stderr, "BREAKREP");
    470 	break;
    471       case R500_FC_OP_CONTINUE:
    472         fprintf(stderr, "CONTINUE");
    473         break;
    474       }
    475       fprintf(stderr," ");
    476       /* A_OP */
    477       switch(inst & (0x3 << 6)){
    478       case R500_FC_A_OP_NONE:
    479         fprintf(stderr, "NONE");
    480         break;
    481       case R500_FC_A_OP_POP:
    482 	fprintf(stderr, "POP");
    483         break;
    484       case R500_FC_A_OP_PUSH:
    485         fprintf(stderr, "PUSH");
    486         break;
    487       }
    488       /* B_OP0 B_OP1 */
    489       for(i=0; i<2; i++){
    490         fprintf(stderr, " ");
    491         switch(inst & (0x3 << (24 + (i * 2)))){
    492         /* R500_FC_B_OP0_NONE
    493 	 * R500_FC_B_OP1_NONE */
    494 	case 0:
    495           fprintf(stderr, "NONE");
    496           break;
    497         case R500_FC_B_OP0_DECR:
    498         case R500_FC_B_OP1_DECR:
    499           fprintf(stderr, "DECR");
    500           break;
    501         case R500_FC_B_OP0_INCR:
    502         case R500_FC_B_OP1_INCR:
    503           fprintf(stderr, "INCR");
    504           break;
    505         }
    506       }
    507       /*POP_CNT B_ELSE */
    508       fprintf(stderr, " %d %1x", (inst >> 16) & 0x1f, (inst & R500_FC_B_ELSE) >> 4);
    509       inst = code->inst[n].inst3;
    510       /* JUMP_ADDR */
    511       fprintf(stderr, " %d", inst >> 16);
    512 
    513       if(code->inst[n].inst2 & R500_FC_IGNORE_UNCOVERED){
    514         fprintf(stderr, " IGN_UNC");
    515       }
    516       inst = code->inst[n].inst3;
    517       fprintf(stderr, "\n\t3:FC_ADDR    0x%08x:", inst);
    518       fprintf(stderr, "BOOL: 0x%02x, INT: 0x%02x, JUMP_ADDR: %d, JMP_GLBL: %1x\n",
    519       inst & 0x1f, (inst >> 8) & 0x1f, (inst >> 16) & 0x1ff, inst >> 31);
    520       break;
    521     case R500_INST_TYPE_TEX:
    522       inst = code->inst[n].inst1;
    523       fprintf(stderr,"\t1:TEX_INST:  0x%08x: id: %d op:%s, %s, %s %s\n", inst, (inst >> 16) & 0xf,
    524 	      to_texop((inst >> 22) & 0x7), (inst & (1<<25)) ? "ACQ" : "",
    525 	      (inst & (1<<26)) ? "IGNUNC" : "", (inst & (1<<27)) ? "UNSCALED" : "SCALED");
    526       inst = code->inst[n].inst2;
    527       fprintf(stderr,"\t2:TEX_ADDR:  0x%08x: src: %d%s %s/%s/%s/%s dst: %d%s %s/%s/%s/%s\n", inst,
    528 	      inst & 127, inst & (1<<7) ? "(rel)" : "",
    529 	      toswiz((inst >> 8) & 0x3), toswiz((inst >> 10) & 0x3),
    530 	      toswiz((inst >> 12) & 0x3), toswiz((inst >> 14) & 0x3),
    531 	      (inst >> 16) & 127, inst & (1<<23) ? "(rel)" : "",
    532 	      toswiz((inst >> 24) & 0x3), toswiz((inst >> 26) & 0x3),
    533 	      toswiz((inst >> 28) & 0x3), toswiz((inst >> 30) & 0x3));
    534 
    535       fprintf(stderr,"\t3:TEX_DXDY:  0x%08x\n", code->inst[n].inst3);
    536       break;
    537     }
    538     fprintf(stderr,"\n");
    539   }
    540 
    541 }
    542