function                                             old     new   delta
unpack_lzma_stream                                  2398    2251    -147
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-147)           Total: -147 bytes

--- archival/libunarchive/decompress_unlzma.c	2008-03-02 09:20:20.000000000 +0100
+++ archival/libunarchive/decompress_unlzma.c	2008-03-02 14:44:45.000000000 +0100
@@ -317,22 +317,16 @@
 				prob_lit = prob + mi;
 				rc_get_bit(rc, prob_lit, &mi);
 			}
-			previous_byte = (uint8_t) mi;
 
-			buffer[buffer_pos++] = previous_byte;
-			if (buffer_pos == header.dict_size) {
-				buffer_pos = 0;
-				global_pos += header.dict_size;
-				if (full_write(dst_fd, buffer, header.dict_size) != header.dict_size)
-					goto bad;
-				USE_DESKTOP(total_written += header.dict_size;)
-			}
-			if (state < 4)
+			state -= 3;
+			if (state < 4-3)
 				state = 0;
-			else if (state < 10)
-				state -= 3;
-			else
-				state -= 6;
+			if (state >= 10-3)
+				state -= 6-3;
+
+			previous_byte = (uint8_t) mi;
+			len = 1;
+			goto one_byte;
 		} else {
 			int offset;
 			uint16_t *prob_len;
@@ -357,19 +351,8 @@
 						rc_update_bit_0(rc, prob);
 
 						state = state < LZMA_NUM_LIT_STATES ? 9 : 11;
-						pos = buffer_pos - rep0;
-						while (pos >= header.dict_size)
-							pos += header.dict_size;
-						previous_byte = buffer[pos];
-						buffer[buffer_pos++] = previous_byte;
-						if (buffer_pos == header.dict_size) {
-							buffer_pos = 0;
-							global_pos += header.dict_size;
-							if (full_write(dst_fd, buffer, header.dict_size) != header.dict_size)
-								goto bad;
-							USE_DESKTOP(total_written += header.dict_size;)
-						}
-						continue;
+						len = 1;
+						goto string;
 					} else {
 						rc_update_bit_1(rc, prob);
 					}
@@ -469,11 +452,13 @@
 
 			len += LZMA_MATCH_MIN_LEN;
 
+ string:
 			do {
 				pos = buffer_pos - rep0;
 				while (pos >= header.dict_size)
 					pos += header.dict_size;
 				previous_byte = buffer[pos];
+ one_byte:
 				buffer[buffer_pos++] = previous_byte;
 				if (buffer_pos == header.dict_size) {
 					buffer_pos = 0;