1 // SPDX-License-Identifier: 0BSD
69 		 * PowerPC          4           0
70 		 * IA-64           16           0
71 		 * ARM              4           0
73 		 * SPARC            4           0
86 	return b == 0x00 || b == 0xFF;  in bcj_x86_test_msbyte()
94 	static const uint8_t mask_to_bit_num[8] = { 0, 1, 2, 2, 3, 3, 3, 3 };  in bcj_x86()
105 		return 0;  in bcj_x86()
108 	for (i = 0; i < size; ++i) {  in bcj_x86()
109 		if ((buf[i] & 0xFE) != 0xE8)  in bcj_x86()
114 			prev_mask = 0;  in bcj_x86()
117 			if (prev_mask != 0) {  in bcj_x86()
134 				if (prev_mask == 0)  in bcj_x86()
145 			dest &= 0x01FFFFFF;  in bcj_x86()
146 			dest |= (uint32_t)0 - (dest & 0x01000000);  in bcj_x86()
155 	s->x86_prev_mask = prev_pos > 3 ? 0 : prev_mask << (prev_pos - 1);  in bcj_x86()
168 	for (i = 0; i < size; i += 4) {  in bcj_powerpc()
170 		if ((instr & 0xFC000003) == 0x48000001) {  in bcj_powerpc()
171 			instr &= 0x03FFFFFC;  in bcj_powerpc()
173 			instr &= 0x03FFFFFC;  in bcj_powerpc()
174 			instr |= 0x48000001;  in bcj_powerpc()
187 		0, 0, 0, 0, 0, 0, 0, 0,  in bcj_ia64()
188 		0, 0, 0, 0, 0, 0, 0, 0,  in bcj_ia64()
189 		4, 4, 6, 6, 0, 0, 7, 7,  in bcj_ia64()
190 		4, 4, 0, 0, 4, 4, 0, 0  in bcj_ia64()
203 	/* Instruction slot (0, 1, or 2) in the 128-bit instruction word */  in bcj_ia64()
227 	for (i = 0; i < size; i += 16) {  in bcj_ia64()
228 		mask = branch_table[buf[i] & 0x1F];  in bcj_ia64()
229 		for (slot = 0, bit_pos = 5; slot < 3; ++slot, bit_pos += 41) {  in bcj_ia64()
230 			if (((mask >> slot) & 1) == 0)  in bcj_ia64()
235 			instr = 0;  in bcj_ia64()
236 			for (j = 0; j < 6; ++j)  in bcj_ia64()
242 			if (((norm >> 37) & 0x0F) == 0x05  in bcj_ia64()
243 					&& ((norm >> 9) & 0x07) == 0) {  in bcj_ia64()
244 				addr = (norm >> 13) & 0x0FFFFF;  in bcj_ia64()
250 				norm &= ~((uint64_t)0x8FFFFF << 13);  in bcj_ia64()
251 				norm |= (uint64_t)(addr & 0x0FFFFF) << 13;  in bcj_ia64()
252 				norm |= (uint64_t)(addr & 0x100000)  in bcj_ia64()
258 				for (j = 0; j < 6; j++)  in bcj_ia64()
277 	for (i = 0; i < size; i += 4) {  in bcj_arm()
278 		if (buf[i + 3] == 0xEB) {  in bcj_arm()
301 		return 0;  in bcj_armthumb()
305 	for (i = 0; i <= size; i += 2) {  in bcj_armthumb()
306 		if ((buf[i + 1] & 0xF8) == 0xF0  in bcj_armthumb()
307 				&& (buf[i + 3] & 0xF8) == 0xF8) {  in bcj_armthumb()
308 			addr = (((uint32_t)buf[i + 1] & 0x07) << 19)  in bcj_armthumb()
310 					| (((uint32_t)buf[i + 3] & 0x07) << 8)  in bcj_armthumb()
315 			buf[i + 1] = (uint8_t)(0xF0 | ((addr >> 19) & 0x07));  in bcj_armthumb()
317 			buf[i + 3] = (uint8_t)(0xF8 | ((addr >> 8) & 0x07));  in bcj_armthumb()
335 	for (i = 0; i < size; i += 4) {  in bcj_sparc()
337 		if ((instr >> 22) == 0x100 || (instr >> 22) == 0x1FF) {  in bcj_sparc()
341 			instr = ((uint32_t)0x40000000 - (instr & 0x400000))  in bcj_sparc()
342 					| 0x40000000 | (instr & 0x3FFFFF);  in bcj_sparc()
360 	for (i = 0; i < size; i += 4) {  in bcj_arm64()
363 		if ((instr >> 26) == 0x25) {  in bcj_arm64()
366 			instr = 0x94000000 | (addr & 0x03FFFFFF);  in bcj_arm64()
369 		} else if ((instr & 0x9F000000) == 0x90000000) {  in bcj_arm64()
371 			addr = ((instr >> 29) & 3) | ((instr >> 3) & 0x1FFFFC);  in bcj_arm64()
374 			if ((addr + 0x020000) & 0x1C0000)  in bcj_arm64()
379 			instr &= 0x9000001F;  in bcj_arm64()
381 			instr |= (addr & 0x03FFFC) << 3;  in bcj_arm64()
382 			instr |= (0U - (addr & 0x020000)) & 0xE00000;  in bcj_arm64()
405 		return 0;  in bcj_riscv()
409 	for (i = 0; i <= size; i += 2) {  in bcj_riscv()
412 		if (instr == 0xEF) {  in bcj_riscv()
415 			if ((b1 & 0x0D) != 0)  in bcj_riscv()
421 			addr = ((b1 & 0xF0) << 13) | (b2 << 9) | (b3 << 1);  in bcj_riscv()
424 			buf[i + 1] = (uint8_t)((b1 & 0x0F)  in bcj_riscv()
425 					| ((addr >> 8) & 0xF0));  in bcj_riscv()
427 			buf[i + 2] = (uint8_t)(((addr >> 16) & 0x0F)  in bcj_riscv()
428 					| ((addr >> 7) & 0x10)  in bcj_riscv()
429 					| ((addr << 4) & 0xE0));  in bcj_riscv()
431 			buf[i + 3] = (uint8_t)(((addr >> 4) & 0x7F)  in bcj_riscv()
432 					| ((addr >> 13) & 0x80));  in bcj_riscv()
436 		} else if ((instr & 0x7F) == 0x17) {  in bcj_riscv()
442 			if (instr & 0xE80) {  in bcj_riscv()
446 				if (((instr << 8) ^ (instr2 - 3)) & 0xF8003) {  in bcj_riscv()
451 				addr = (instr & 0xFFFFF000) + (instr2 >> 20);  in bcj_riscv()
453 				instr = 0x17 | (2 << 7) | (instr2 << 12);  in bcj_riscv()
459 				if ((uint32_t)((instr - 0x3117) << 18)  in bcj_riscv()
460 						>= (instr2_rs1 & 0x1D)) {  in bcj_riscv()
470 				instr = 0x17 | (instr2_rs1 << 7)  in bcj_riscv()
471 					| ((addr + 0x800) & 0xFFFFF000);  in bcj_riscv()
544 		filtered = 0;  in bcj_apply()
585 	if (s->temp.filtered > 0) {  in xz_dec_bcj_run()
587 		if (s->temp.filtered > 0)  in xz_dec_bcj_run()
602 	 * This needs to be always run when temp.size == 0 to handle a special  in xz_dec_bcj_run()
606 	if (s->temp.size < b->out_size - b->out_pos || s->temp.size == 0) {  in xz_dec_bcj_run()
677 		if (s->temp.filtered > 0)  in xz_dec_bcj_run()
729 	s->pos = 0;  in xz_dec_bcj_reset()
730 	s->x86_prev_mask = 0;  in xz_dec_bcj_reset()
731 	s->temp.filtered = 0;  in xz_dec_bcj_reset()
732 	s->temp.size = 0;  in xz_dec_bcj_reset()