6502/lzsa
1
0
Fork 0
mirror of https://github.com/emmanuel-marty/lzsa.git synced 2024-06-03 06:29:27 +00:00
Code Issues Projects Releases Wiki Activity

More asm fixes

Browse Source
This commit is contained in:
Emmanuel Marty 2020-01-08 13:11:43 +01:00 committed by GitHub
parent aa122d1e05
commit 693618f100
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
asm/6502/decompress_faster_v1.asm
View File

@ -5,7 +5,7 @@
;
; NMOS 6502 decompressor for data stored in Emmanuel Marty's LZSA1 format.
;
; This code is written for the PCEAS/NECASM assembler in HuC & MagicKit.
; This code is written for the ACME assembler.
;
; Optional code is presented for one minor 6502 optimization that breaks
; compatibility with the current LZSA1 format standard.

8
asm/6502/decompress_faster_v2.asm
View File

@ -197,7 +197,7 @@ DECOMPRESS_LZSA2_FAST:
lzsa2_unpack: ldy #0 ; Initialize source index.
sty <lzsa_nibflg ; Initialize nibble buffer.
!if !(LZSA_FROM_BANK | LZSA_NO_INLINE | LZSA_USE_FFFF) {
!if (LZSA_FROM_BANK | LZSA_NO_INLINE | LZSA_USE_FFFF) = 0 {
beq .cp_length ; always taken
.incsrc1:
@ -232,10 +232,10 @@ lzsa2_unpack: ldy #0 ; Initialize source index.
lda (lzsa_srcptr),y
inc <lzsa_srcptr + 0
beq .incsrc1
.resume_src1:
}
.resume_src1:
sta <lzsa_cmdbuf ; Preserve this for later.
and #$18 ; Extract literal length.
beq .lz_offset ; Skip directly to match?
@ -491,7 +491,7 @@ lzsa2_unpack: ldy #0 ; Initialize source index.
jmp .cp_length ; Loop around to the beginning.
!if !(LZSA_FROM_BANK | LZSA_NO_INLINE | LZSA_USE_FFFF) {
!if (LZSA_FROM_BANK | LZSA_NO_INLINE | LZSA_USE_FFFF) = 0 {
.incsrc3:
inc <lzsa_srcptr + 1
@ -628,7 +628,7 @@ lzsa2_new_nibble:
}
!if !(LZSA_FROM_BANK | LZSA_NO_INLINE | LZSA_USE_FFFF) {
!if (LZSA_FROM_BANK | LZSA_NO_INLINE | LZSA_USE_FFFF) = 0 {
.incsrc4:
inc <lzsa_srcptr + 1