15 Commits

Author	SHA1	Message	Date
Doug Masten	ecb6bc5106	Tiny speed improvement to 6809 LZSA depackers ... Same space used but improved match length code by 1 cycle for M6809. On H6309 the clock cycles are the same.	2020-07-03 01:29:02 -05:00
Doug Masten	31d5dc2419	Slight speed and space improvement to nibble processing in 6809 LZSA2 depackers	2020-06-30 14:05:59 -05:00
Doug Masten	214e03555f	Slight speed improvement in 6809 LZSA depackers ... Switch instruction "tfr x,u" to "leau ,x" which is 2 clock cycles faster on M6809. On H6309 both instruction have same clock cycles.	2020-06-29 00:36:49 -05:00
Doug Masten	078edef880	Optimize match offset code in 6809 LZSA2 depacker	2020-06-27 04:17:05 -05:00
Doug Masten	03692fca2c	Update code byte counts for 6809 LZSA depackers	2020-06-27 02:02:33 -05:00
Doug Masten	fde15d3fb0	Move instruction before branch to save one byte in 6809 LZSA2 depacker	2020-06-27 02:02:33 -05:00
Doug Masten	fc8120f0da	Optimize handling of 9 bits offset in 6809 LZSA2 depacker	2020-06-27 02:02:33 -05:00
Doug Masten	c7b3ffc067	Delay clearing high part of literals count until we really have to in 6809 LZSA2 depacker	2020-06-27 02:02:33 -05:00
Doug Masten	137c6201be	One byte saving for setting reg A to $FF in 6809 LZSA2 depacker	2020-06-27 02:02:33 -05:00
Doug Masten	e397428c1f	Remove trailing whitespaces in 6809 LZSA2 depacker	2020-06-27 02:02:33 -05:00
Doug Masten	b8cfbbbc7b	Optimize handling of token's Z flag bit in 6809 LZSA2 depacker	2020-06-27 02:02:33 -05:00
Doug Masten	6a47ed7f41	Remove unnecessary "ADDB #$18" as B register will always have this value from 6809 LZSA depacker	2020-06-21 12:32:54 -05:00
Doug Masten	7f0316b81c	Update code byte counts for 6809 LZSA depackers	2020-06-20 12:45:51 -05:00
Doug Masten	1dd65731c4	Remove unnecessary "ADDB #$12" as B register will always have this value from 6809 LZSA depackers	2020-06-20 12:27:22 -05:00
Emmanuel Marty	ee969968c1	Add backward depackers for 6809	2020-06-20 14:41:25 +02:00