kxld/i386/WKdmCompress.s

5 // unsigned int WKdm_compress (WK_word* src_buf, WK_word* dest_buf, unsigned int num_input_words);
69 	movl	12(%ebp), %esi					// %esi = dest_buf
101 	leal	16(%esi,%eax,4), %eax			// dest_buf + [TAGS_AREA_OFFSET + (num_input_words / 16)]*4
102 	movl	%eax, -6256(%ebp)				// next_full_patt = dest_buf + TAGS_AREA_OFFSET + (num_input_words / 16);
173 	// SET_QPOS_AREA_START(dest_buf,next_full_patt);
175 	subl	12(%ebp), %edi					// next_full_patt - dest_buf
176 	movl	%edi, %eax						// next_full_patt - dest_buf
178 	movl	%eax, -6240(%ebp)				// save (next_full_patt - dest_buf) in words
179 	movl	12(%ebp), %edx					// dest_buf
180 	movl	%eax, 4(%edx)					// dest_buf[1] = next_full_patt - dest_buf
187 	movl	%edx, %ebx						// a copy of dest_buf
189 	// boundary_tmp = WK_pack_2bits(tempTagsArray, (WK_word *) next_tag, dest_buf + HEADER_SIZE_IN_WORDS);
202 	movl	%eax, 16(%ebx)					// save at *(dest_buf + HEADER_SIZE_IN_WORDS)
204 	addl	$4, %ebx						// dest_buf += 4;
205 	cmpl    %ecx, next_tag					// cmp next_tag vs dest_buf
206 	ja		L_WK_pack_2bits					// if (next_tag > dest_buf) repeat L_WK_pack_2bits
248 	subl	12(%ebp), %edi					// boundary_tmp - dest_buf
249 	movl	%edi, %eax						// boundary_tmp - dest_buf
252 	movl	%eax, -6240(%ebp)				// save (next_full_patt - dest_buf) in words
255 	// SET_LOW_BITS_AREA_START(dest_buf,boundary_tmp);
256 	movl	-6240(%ebp), %ecx				// boundary_tmp - dest_buf
257 	movl	12(%ebp), %edx					// dest_buf
258 	movl	%ecx, 8(%edx)					// dest_buf[2] = boundary_tmp - dest_buf
275 	movl	%eax, (%ebx)					// pack w0,w1,w2 into 1 dest_buf word
276 	addl	$4, %ebx						// dest_buf++
290 	movl	%eax, (%ebx)					// write the final dest_buf word
291 	addl	$4, %ebx						// dest_buf++
294 	subl	12(%ebp), %eax					// boundary_tmp - dest_buf
295 	sarl	$2, %eax						// boundary_tmp - dest_buf in terms of words
296 	movl	12(%ebp), %esi					// dest_buf
297 	movl	%eax, 12(%esi)					// SET_LOW_BITS_AREA_END(dest_buf,boundary_tmp);
298 	sall	$2, %eax						// boundary_tmp - dest_buf in terms of bytes
352 	#define	dest_buf			%r12
357 	movq	%rsi, %r12						// dest_buf
389 	leaq	16(%rsi,%rdx,4), %rbx			// dest_buf + [TAGS_AREA_OFFSET + (num_input_words / 16)]*4
437 	// SET_QPOS_AREA_START(dest_buf,next_full_patt);
440 	subq	dest_buf, %rax							// next_full_patt - dest_buf
442 	movl	%eax, %r13d								// r13d = (next_full_patt - dest_buf)
443 	movl	%eax, 4(dest_buf)						// dest_buf[1] = next_full_patt - dest_buf
449 	// boundary_tmp = WK_pack_2bits(tempTagsArray, (WK_word *) next_tag, dest_buf + HEADER_SIZE_IN_WORDS);
451 	movq	dest_buf, %rdi							// dest_buf
465 	movl	%eax, 16(%rdi)							// save at *(dest_buf + HEADER_SIZE_IN_WORDS)
467 	addq	$4, %rdi								// dest_buf += 4;
468 	cmpq	%rcx, next_tag							// cmp next_tag vs dest_buf
469 	ja		L_pack_2bits							// if (next_tag > dest_buf) repeat L_pack_2bits
506 	// SET_LOW_BITS_AREA_START(dest_buf,boundary_tmp);
509 	subq	dest_buf, %rax							// boundary_tmp - dest_buf
510 	movq	%rax, %r13								// boundary_tmp - dest_buf
511 	shrq	$2, %r13								// boundary_tmp - dest_buf in words
513 	movl	%r13d, 8(dest_buf)						// dest_buf[2] = boundary_tmp - dest_buf
533 	movl	%eax, (%rdi)							// pack w0,w1,w2 into 1 dest_buf word
534 	addq	$4, %rdi								// dest_buf++
548 2:	movl	%eax, (%rdi)							// write the final dest_buf word
549 	addq	$4, %rdi								// dest_buf++
552 	subq	dest_buf, %rax							// boundary_tmp - dest_buf
553 	shrq	$2, %rax								// boundary_tmp - dest_buf in terms of words
554 	movl	%eax, 12(dest_buf)						// SET_LOW_BITS_AREA_END(dest_buf,boundary_tmp)
555 	shlq	$2, %rax								// boundary_tmp - dest_buf in terms of bytes