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author Vas Crabb <vas@vastheman.com>2024-02-27 23:17:06 +1100
committer Vas Crabb <vas@vastheman.com>2024-02-27 23:17:06 +1100
commit93d83183259b82e18932be292cc815e864c24d78 (patch)
tree777df5c6433e49f15a66446675bdbf6a04859768 /docs/source/conf.py
parent2f642fcc60a9fd9d5707ec1e8a5902ce07ede5d1 (diff)
Bumped version to 0.263mame0263
Diffstat (limited to 'docs/source/conf.py')
-rw-r--r--docs/source/conf.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/docs/source/conf.py b/docs/source/conf.py
index d79cc599add..e932d633316 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -63,9 +63,9 @@ copyright = u'1997-2024, MAMEdev and contributors'
# built documents.
#
# The short X.Y version.
-version = '0.262'
+version = '0.263'
# The full version, including alpha/beta/rc tags.
-release = '0.262'
+release = '0.263'
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
59' href='#n159'>159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759
// license:BSD-3-Clause
// copyright-holders:AJR
/***************************************************************************

    National Semiconductor HPC disassembler

    Note that though all 16-bit fields in instructions have the MSB first,
    the HPC's memory organization is in fact little-endian (including
    vector and JIDW tables). This is why r16 is always swapped here.

***************************************************************************/

#include "emu.h"
#include "hpcdasm.h"

#include <cctype>

const char *const hpc16083_disassembler::s_regs[128] =
{
	"psw", nullptr, "SP", "PC", "A", "K", "B", "X",
	"enir", "irpd", "ircd", "sio", "porti", nullptr, "halten", nullptr,
	"porta", "portb", nullptr, "upic", nullptr, nullptr, nullptr, nullptr,
	"dira", "dirb", "bfun", nullptr, nullptr, nullptr, nullptr, nullptr,
	nullptr, nullptr, "portd", nullptr, nullptr, nullptr, nullptr, nullptr,
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
	"enu", "enui", "rbuf", "tbuf", "enur", nullptr, nullptr, nullptr,
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
	"t4", "r4", "t5", "r5", "t6", "r6", "t7", "r7",
	"pwmode", "portp", nullptr, nullptr, nullptr, nullptr, "eicon", "eicr",
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
	"i4cr", "i3cr", "i2cr", "r2", "t2", "r3", "t3", "divby",
	"tmmode", "t0con", "watchdog", nullptr, nullptr, nullptr, nullptr, nullptr,
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr
};

const char *const hpc16164_disassembler::s_regs[128] =
{
	"psw", nullptr, "SP", "PC", "A", "K", "B", "X",
	"enir", "irpd", "ircd", "sio", "porti", nullptr, "halten", "romdump",
	"porta", "portb", nullptr, "upic", nullptr, nullptr, nullptr, nullptr,
	"dira", "dirb", "bfun", nullptr, nullptr, nullptr, nullptr, nullptr,
	"adcr1", "adcr2", "portd", "adcr3", nullptr, nullptr, nullptr, nullptr,
	"ad0", "ad1", "ad2", "ad3", "ad4", "ad5", "ad6", "ad7",
	"enu", "enui", "rbuf", "tbuf", "enur", nullptr, nullptr, nullptr,
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
	"t4", "r4", "t5", "r5", "t6", "r6", "t7", "r7",
	"pwmode", "portp", nullptr, nullptr, nullptr, nullptr, "eicon", "eicr",
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
	"i4cr", "i3cr", "i2cr", "r2", "t2", "r3", "t3", "divby",
	"tmmode", "t0con", "watchdog", nullptr, nullptr, nullptr, nullptr, nullptr,
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
	nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr
};

hpc_disassembler::hpc_disassembler(const char *const regs[])
	: util::disasm_interface()
	, m_regs(regs)
{
}

u32 hpc_disassembler::opcode_alignment() const
{
	return 1;
}

void hpc_disassembler::format_register(std::ostream &stream, u16 reg) const
{
	if (reg >= 0x00c0 && reg < 0x01c0)
	{
		const char *name = m_regs[(reg - 0x00c0) >> 1];
		if (name != nullptr)
		{
			stream << name;
			if (BIT(reg, 0))
				stream << "+1";
			return;
		}
	}

	util::stream_format(stream, "0%X", reg);
}

void hpc_disassembler::format_immediate_byte(std::ostream &stream, u8 data) const
{
	stream << "#";
	if (data >= 0x10)
		stream << "0";
	util::stream_format(stream, "%02X", data);
}

void hpc_disassembler::format_immediate_word(std::ostream &stream, u16 data) const
{
	stream << "#";
	if (data >= 0x1000)
		stream << "0";
	util::stream_format(stream, "%04X", data);
}

void hpc_disassembler::disassemble_op(std::ostream &stream, const char *op, u16 reg, u16 src, bool imm, bool indir, bool idx, bool w) const
{
	util::stream_format(stream, "%-8s", op);
	if (idx)
		stream << "A";
	else
		format_register(stream, reg);
	stream << ",";
	if (imm)
	{
		if (w)
			format_immediate_word(stream, src);
		else
			format_immediate_byte(stream, src);
	}
	else
	{
		if (idx)
			util::stream_format(stream, "0%X", u16(reg));

		if (indir)
			stream << "[";
		format_register(stream, src);
		if (indir)
			stream << "]";

		if (w)
			stream << ".w";
		else
			stream << ".b";
	}
}

void hpc_disassembler::disassemble_unary_op(std::ostream &stream, const char *op, u16 offset, u16 src, bool indir, bool idx, bool w) const
{
	util::stream_format(stream, "%-8s", op);
	if (idx)
		util::stream_format(stream, "0%X", offset);

	if (indir)
		stream << "[";
	format_register(stream, src);
	if (indir)
		stream << "]";

	if (w)
	{
		if (src < 0x00c4 || src >= 0x00d0 || indir)
			stream << ".w";
	}
	else
		stream << ".b";
}

void hpc_disassembler::disassemble_bit_op(std::ostream &stream, const char *op, u8 bit, u16 offset, u16 src, bool indir, bool idx) const
{
	if (src >= 0x00c0 && src < 0x01c0 && BIT(src, 0) && !indir && m_regs[(src - 0x00c0) >> 1] != nullptr)
	{
		src &= 0xfffe;
		bit += 8;
	}

	util::stream_format(stream, "%-8s%d,", op, bit);

	if (idx)
		util::stream_format(stream, "0%X", offset);

	if (indir)
		stream << "[";
	format_register(stream, src);
	if (indir)
		stream << "].b";
}

offs_t hpc_disassembler::disassemble(std::ostream &stream, offs_t pc, const hpc_disassembler::data_buffer &opcodes, const hpc_disassembler::data_buffer &params)
{
	u8 opcode = opcodes.r8(pc);
	u16 reg = REGISTER_A;
	u16 src = REGISTER_B;
	bool imm = false;
	bool dmode = false;
	bool indir = true;
	bool idx = false;
	bool jmp = false;
	offs_t bytes = 1;

	switch (opcode)
	{
	case 0x20: case 0x21: case 0x22: case 0x23:
	case 0x24: case 0x25: case 0x26: case 0x27:
	case 0x28: case 0x29: case 0x2a: case 0x2b:
	case 0x2c: case 0x2d: case 0x2e: case 0x2f:
		jmp = true;
		src = 0xffd0 + (opcode & 0x0f) * 2;
		bytes = 1;
		break;

	case 0x30: case 0x31: case 0x32: case 0x33:
		jmp = true;
		src = pc + 2 + ((opcode & 0x03) << 8 | opcodes.r8(pc + 1));
		bytes = 2;
		break;

	case 0x34: case 0x35: case 0x36: case 0x37:
		jmp = true;
		src = pc - ((opcode & 0x03) << 8 | opcodes.r8(pc + 1));
		bytes = 2;
		break;

	case 0x38: case 0x39: case 0x3a:
		reg = REGISTER_X;
		break;

	case 0x3f:
	case 0x89: case 0x8a:
	case 0xa9: case 0xaa: case 0xaf:
		indir = false;
		src = opcodes.r8(pc + 1);
		bytes = 2;
		break;

	case 0x40: case 0x41: case 0x42: case 0x43:
	case 0x44: case 0x45: case 0x46: case 0x47:
	case 0x48: case 0x49: case 0x4a: case 0x4b:
	case 0x4c: case 0x4d: case 0x4e: case 0x4f:
	case 0x50: case 0x51: case 0x52: case 0x53:
	case 0x54: case 0x55: case 0x56: case 0x57:
	case 0x58: case 0x59: case 0x5a: case 0x5b:
	case 0x5c: case 0x5d: case 0x5e: case 0x5f:
		jmp = true;
		src = pc + 1 + (opcode & 0x1f);
		break;

	case 0x60: case 0x61: case 0x62: case 0x63:
	case 0x64: case 0x65: case 0x66: case 0x67:
	case 0x68: case 0x69: case 0x6a: case 0x6b:
	case 0x6c: case 0x6d: case 0x6e: case 0x6f:
	case 0x70: case 0x71: case 0x72: case 0x73:
	case 0x74: case 0x75: case 0x76: case 0x77:
	case 0x78: case 0x79: case 0x7a: case 0x7b:
	case 0x7c: case 0x7d: case 0x7e: case 0x7f:
		jmp = true;
		src = pc - (opcode & 0x1f);
		break;

	case 0x80: case 0x82:
	case 0xa0:
		dmode = true;
		indir = false;
		if (BIT(opcode, 1))
			imm = true;

		src = opcodes.r8(pc + 1);
		reg = opcodes.r8(pc + 2);
		opcode = opcodes.r8(pc + 3);
		bytes = 4;
		break;

	case 0x84: case 0x86:
	case 0xa4:
		dmode = true;
		indir = false;
		if (BIT(opcode, 1))
			imm = true;

		src = swapendian_int16(opcodes.r16(pc + 1));
		reg = opcodes.r8(pc + 3);
		opcode = opcodes.r8(pc + 4);
		bytes = 5;
		break;

	case 0x81: case 0x83:
	case 0xa1:
		dmode = true;
		indir = false;
		if (BIT(opcode, 1))
			imm = true;

		src = opcodes.r8(pc + 1);
		reg = swapendian_int16(opcodes.r16(pc + 2));
		opcode = opcodes.r8(pc + 4);
		bytes = 5;
		break;

	case 0xa2:
		idx = true;
		reg = opcodes.r8(pc + 1);
		src = opcodes.r8(pc + 2);
		opcode = opcodes.r8(pc + 3);
		bytes = 4;
		break;

	case 0x85: case 0x87:
	case 0xa5:
		dmode = true;
		indir = false;
		if (BIT(opcode, 1))
			imm = true;

		src = swapendian_int16(opcodes.r16(pc + 1));
		reg = swapendian_int16(opcodes.r16(pc + 3));
		opcode = opcodes.r8(pc + 5);
		bytes = 6;
		break;

	case 0xa6:
		idx = true;
		reg = swapendian_int16(opcodes.r16(pc + 1));
		src = opcodes.r8(pc + 3);
		opcode = opcodes.r8(pc + 4);
		bytes = 5;
		break;

	case 0x88: case 0x8b: case 0x8e:
	case 0xa8: case 0xab: case 0xae:
		indir = false;
		src = opcodes.r8(pc + 1);
		bytes = 2;
		break;

	case 0x8c:
	case 0xac:
		indir = false;
		src = opcodes.r8(pc + 1);
		reg = opcodes.r8(pc + 2);
		bytes = 3;
		break;

	case 0x8d:
		imm = true;
		src = opcodes.r8(pc + 1);
		reg = opcodes.r8(pc + 2);
		bytes = 3;
		break;

	case 0x8f:
		src = REGISTER_X;
		opcode = opcodes.r8(pc + 1);
		bytes = 2;
		break;

	case 0x90: case 0x91: case 0x92: case 0x93:
		imm = true;
		reg = 0x00c8 | ((opcode & 0x03) << 1);
		src = opcodes.r8(pc + 1);
		bytes = 2;
		break;

	case 0x98: case 0x99: case 0x9a: case 0x9b:
	case 0x9c: case 0x9d: case 0x9e: case 0x9f:
		imm = true;
		src = opcodes.r8(pc + 1);
		bytes = 2;
		break;

	case 0x94:
		jmp = true;
		src = pc + 2 + opcodes.r8(pc + 1);
		bytes = 2;
		break;

	case 0x95:
		jmp = true;
		src = pc - opcodes.r8(pc + 1);
		bytes = 2;
		break;

	case 0x96:
		indir = false;
		src = opcodes.r8(pc + 1);
		opcode = opcodes.r8(pc + 2);
		bytes = 3;
		break;

	case 0x97:
		indir = false;
		imm = true;
		src = opcodes.r8(pc + 1);
		reg = opcodes.r8(pc + 2);
		bytes = 3;
		break;

	case 0xa7:
		imm = true;
		src = swapendian_int16(opcodes.r16(pc + 1));
		reg = swapendian_int16(opcodes.r16(pc + 3));
		bytes = 5;
		break;

	case 0xad:
		src = opcodes.r8(pc + 1);
		opcode = opcodes.r8(pc + 2);
		bytes = 3;
		break;

	case 0xb0: case 0xb1: case 0xb2: case 0xb3:
		imm = true;
		reg = 0x00c8 | ((opcode & 0x03) << 1);
		src = swapendian_int16(opcodes.r16(pc + 1));
		bytes = 3;
		break;

	case 0xb8: case 0xb9: case 0xba: case 0xbb:
	case 0xbc: case 0xbd: case 0xbe: case 0xbf:
		imm = true;
		src = swapendian_int16(opcodes.r16(pc + 1));
		bytes = 3;
		break;

	case 0xb4: case 0xb5:
		jmp = true;
		src = pc + 3 + swapendian_int16(opcodes.r16(pc + 1));
		bytes = 3;
		break;

	case 0xb6:
		indir = false;
		src = swapendian_int16(opcodes.r16(pc + 1));
		opcode = opcodes.r8(pc + 3);
		bytes = 4;
		break;

	case 0xb7:
		imm = true;
		src = swapendian_int16(opcodes.r16(pc + 1));
		reg = opcodes.r8(pc + 3);
		bytes = 4;
		break;

	case 0xd4: case 0xd5: case 0xd6:
	case 0xf4: case 0xf5: case 0xf6:
		src = REGISTER_X;
		break;
	}

	switch (opcode)
	{
	case 0x00:
		util::stream_format(stream, "%-8sA", "clr");
		break;

	case 0x01:
		util::stream_format(stream, "%-8sA", "comp");
		break;

	case 0x02:
		stream << "sc";
		break;

	case 0x03:
		stream << "rc";
		break;

	case 0x04:
		util::stream_format(stream, "%-8sA", "inc");
		break;

	case 0x05:
		util::stream_format(stream, "%-8sA", "dec");
		break;

	case 0x06:
		stream << "ifnc";
		break;

	case 0x07:
		stream << "ifc";
		break;

	case 0x08: case 0x09: case 0x0a: case 0x0b:
	case 0x0c: case 0x0d: case 0x0e: case 0x0f:
		disassemble_bit_op(stream, "sbit", opcode & 0x07, reg, src, indir, idx);
		break;

	case 0x10: case 0x11: case 0x12: case 0x13:
	case 0x14: case 0x15: case 0x16: case 0x17:
		disassemble_bit_op(stream, "ifbit", opcode & 0x07, reg, src, indir, idx);
		break;

	case 0x18: case 0x19: case 0x1a: case 0x1b:
	case 0x1c: case 0x1d: case 0x1e: case 0x1f:
		disassemble_bit_op(stream, "rbit", opcode & 0x07, reg, src, indir, idx);
		break;

	case 0x20: case 0x21: case 0x22: case 0x23:
	case 0x24: case 0x25: case 0x26: case 0x27:
	case 0x28: case 0x29: case 0x2a: case 0x2b:
	case 0x2c: case 0x2d: case 0x2e: case 0x2f:
		util::stream_format(stream, "%-8s", "jsrp");
		if (jmp)
			util::stream_format(stream, "[0%X]", src);
		else
			stream << "???";
		bytes |= STEP_OVER;
		break;

	case 0x30: case 0x31: case 0x32: case 0x33:
	case 0x34: case 0x35: case 0x36: case 0x37:
		util::stream_format(stream, "%-8s", "jsr");
		if (jmp)
			util::stream_format(stream, "0%X", src);
		else
			stream << "???";
		bytes |= STEP_OVER;
		break;

	case 0x38:
		disassemble_op(stream, "rbit", reg, src, imm, indir, idx, false);
		break;

	case 0x39:
		disassemble_op(stream, "sbit", reg, src, imm, indir, idx, false);
		break;

	case 0x3a:
		disassemble_op(stream, "ifbit", reg, src, imm, indir, idx, false);
		break;

	case 0x3b:
		util::stream_format(stream, "%-8sA", "swap");
		break;

	case 0x3c:
		stream << "ret";
		bytes |= STEP_OUT;
		break;

	case 0x3d:
		stream << "retsk";
		bytes |= STEP_OUT;
		break;

	case 0x3e:
		stream << "reti";
		bytes |= STEP_OUT;
		break;

	case 0x3f:
		util::stream_format(stream, "%-8s", "pop");
		format_register(stream, src);
		break;

	case 0x40:
		stream << "nop";
		break;

	case 0x41: case 0x42: case 0x43:
	case 0x44: case 0x45: case 0x46: case 0x47:
	case 0x48: case 0x49: case 0x4a: case 0x4b:
	case 0x4c: case 0x4d: case 0x4e: case 0x4f:
	case 0x50: case 0x51: case 0x52: case 0x53:
	case 0x54: case 0x55: case 0x56: case 0x57:
	case 0x58: case 0x59: case 0x5a: case 0x5b:
	case 0x5c: case 0x5d: case 0x5e: case 0x5f:
	case 0x60: case 0x61: case 0x62: case 0x63:
	case 0x64: case 0x65: case 0x66: case 0x67:
	case 0x68: case 0x69: case 0x6a: case 0x6b:
	case 0x6c: case 0x6d: case 0x6e: case 0x6f:
	case 0x70: case 0x71: case 0x72: case 0x73:
	case 0x74: case 0x75: case 0x76: case 0x77:
	case 0x78: case 0x79: case 0x7a: case 0x7b:
	case 0x7c: case 0x7d: case 0x7e: case 0x7f:
		util::stream_format(stream, "%-8s", "jp");
		if (jmp)
			util::stream_format(stream, "0%X", src);
		else
			stream << "???";
		break;

	case 0x88: case 0x8c:
	case 0x90: case 0x91: case 0x92: case 0x93:
	case 0x97:
	case 0xa8: case 0xac:
	case 0xb0: case 0xb1: case 0xb2: case 0xb3:
	case 0xb7:
	case 0xc4:
	case 0xd4:
	case 0xe4:
	case 0xf4:
		disassemble_op(stream, "ld", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0x89:
	case 0xa9:
		disassemble_unary_op(stream, "inc", reg, src, indir, idx, BIT(opcode, 5));
		break;

	case 0x8a:
	case 0xaa:
		disassemble_unary_op(stream, "decsz", reg, src, indir, idx, BIT(opcode, 5));
		bytes |= STEP_OVER | (1 << OVERINSTSHIFT);
		break;

	case 0x8b:
	case 0xab:
	case 0xc6:
	case 0xd6:
	case 0xe6:
	case 0xf6:
		disassemble_op(stream, dmode ? "ld" : "st", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0x8d:
		util::stream_format(stream, "%-8sBK,", "ld");
		format_immediate_byte(stream, src);
		stream << ",";
		format_immediate_byte(stream, reg);
		break;

	case 0x8e:
	case 0xae:
	case 0xc5:
	case 0xd5:
	case 0xe5:
	case 0xf5:
		disassemble_op(stream, "x", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0x94: case 0x95:
		util::stream_format(stream, "%-8s", "jp");
		if (jmp)
			util::stream_format(stream, "0%X", src);
		else
			stream << "???";
		break;

	case 0x98: case 0xb8: case 0xd8: case 0xf8:
		disassemble_op(stream, "add", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0x99: case 0xb9: case 0xd9: case 0xf9:
		disassemble_op(stream, "and", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0x9a: case 0xba: case 0xda: case 0xfa:
		disassemble_op(stream, "or", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0x9b: case 0xbb: case 0xdb: case 0xfb:
		disassemble_op(stream, "xor", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0x9c: case 0xbc: case 0xdc: case 0xfc:
		disassemble_op(stream, "ifeq", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0x9d: case 0xbd: case 0xdd: case 0xfd:
		disassemble_op(stream, "ifgt", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0x9e: case 0xbe: case 0xde: case 0xfe:
		disassemble_op(stream, "mult", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0x9f: case 0xbf: case 0xdf: case 0xff:
		disassemble_op(stream, "div", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0xa7:
		util::stream_format(stream, "%-8sBK,", "ld");
		format_immediate_word(stream, src);
		stream << ",";
		format_immediate_word(stream, reg);
		break;

	case 0xaf:
		util::stream_format(stream, "%-8s", "push");
		format_register(stream, src);
		break;

	case 0xb4:
		util::stream_format(stream, "%-8s", "jmpl");
		if (jmp)
			util::stream_format(stream, "0%X", src);
		else
			stream << "???";
		break;

	case 0xb5:
		util::stream_format(stream, "%-8s", "jsrl");
		if (jmp)
			util::stream_format(stream, "0%X", src);
		else
			stream << "???";
		bytes |= STEP_OVER;
		break;

	case 0xc0: case 0xc2:
	case 0xe0: case 0xe2:
		util::stream_format(stream, "%-8sA,[B%c].%c", "lds",
			BIT(opcode, 1) ? '-' : '+',
			BIT(opcode, 5) ? 'w' : 'b');
		bytes |= STEP_OVER | (1 << OVERINSTSHIFT);
		break;

	case 0xd0: case 0xd2:
	case 0xf0: case 0xf2:
		util::stream_format(stream, "%-8sA,[X%c].%c", "ld",
			BIT(opcode, 1) ? '-' : '+',
			BIT(opcode, 5) ? 'w' : 'b');
		break;

	case 0xc1: case 0xc3:
	case 0xe1: case 0xe3:
		util::stream_format(stream, "%-8sA,[B%c].%c", "xs",
			BIT(opcode, 1) ? '-' : '+',
			BIT(opcode, 5) ? 'w' : 'b');
		bytes |= STEP_OVER | (1 << OVERINSTSHIFT);
		break;

	case 0xd1: case 0xd3:
	case 0xf1: case 0xf3:
		util::stream_format(stream, "%-8sA,[X%c].%c", "x",
			BIT(opcode, 1) ? '-' : '+',
			BIT(opcode, 5) ? 'w' : 'b');
		break;

	case 0xc7: case 0xe7:
		util::stream_format(stream, "%-8sA", BIT(opcode, 5) ? "shl" : "shr");
		break;

	case 0xd7: case 0xf7:
		util::stream_format(stream, "%-8sA", BIT(opcode, 5) ? "rlc" : "rrc");
		break;

	case 0xc8: case 0xe8:
		disassemble_op(stream, "adc", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0xc9: case 0xe9:
		disassemble_op(stream, "dadc", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0xca: case 0xea:
		disassemble_op(stream, "dsubc", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0xcb: case 0xeb:
		disassemble_op(stream, "subc", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	case 0xcc: case 0xec:
		stream << "jid";
		if (BIT(opcode, 5))
			stream << "w";
		break;

	case 0xcf: case 0xef:
		disassemble_op(stream, "divd", reg, src, imm, indir, idx, BIT(opcode, 5));
		break;

	default:
		stream << "???";
		break;
	}

	return bytes | SUPPORTED;
}