Doug Masten
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ecb6bc5106
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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.
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2020-07-03 01:29:02 -05:00 |
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Doug Masten
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214e03555f
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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.
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2020-06-29 00:36:49 -05:00 |
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Doug Masten
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03692fca2c
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Update code byte counts for 6809 LZSA depackers
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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28ca829924
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delay clearing high part of literals count until we really have to in 6809 LZSA1 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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27562f4761
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Restructure code to eliminate one BRA instruction from loop in 6809 LZSA1 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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7f0316b81c
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Update code byte counts for 6809 LZSA depackers
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2020-06-20 12:45:51 -05:00 |
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Doug Masten
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1dd65731c4
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Remove unnecessary "ADDB #$12" as B register will always have this value from 6809 LZSA depackers
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2020-06-20 12:27:22 -05:00 |
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Doug Masten
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f233d552ca
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Remove unnecessary "TSTB" instruction from 6809 LZSA depackers
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2020-06-20 12:11:35 -05:00 |
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Emmanuel Marty
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ee969968c1
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Add backward depackers for 6809
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2020-06-20 14:41:25 +02:00 |
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