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6502-QR-code-generator
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added level Q and H support

This commit is contained in:
thrust26 2021-04-11 21:07:28 +02:00
parent 2d664f8ef4
commit eefc158261
4 changed files with 66 additions and 17 deletions
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7
FuncDataV2.inc
View File

@ -169,4 +169,9 @@ FirstIdxTbl ; for 25 pixel
ds 7, 0
.byte $01
ds 7, 0
.byte $bf
IF QR_LEVEL = 0 || QR_LEVEL = 1
.byte $bf ; 1st format bit is 1
ELSE
.byte $3f ; 1st format bit is 0
ENDIF

2
FuncDataV2S.inc
View File

@ -178,7 +178,7 @@ FirstIdxTbl ; for 25 pixel
ds 7, 0
.byte $01
ds 7, 0
IF QR_VERSION = 1 || QR_VERSION = 2
IF QR_LEVEL = 0 || QR_LEVEL = 1
.byte $bf ; 1st format bit is 1
ELSE
.byte $3f ; 1st format bit is 0

42
QRCodeGen.inc
View File

@ -614,7 +614,47 @@ FormatHi
.byte %00101110
.byte %01000000
ENDIF
; TODO: levels Q and H
IF QR_LEVEL = 2 ; Q
FormatLo
.byte %01101010
.byte %01100000
.byte %01111110
.byte %01110100
.byte %01001001
.byte %01000011
.byte %01011101
.byte %01010111
FormatHi
.byte %10111110
.byte %11010000
.byte %01100010
.byte %00001100
.byte %01101000
.byte %00000110
.byte %10110100
.byte %11011010
ENDIF
IF QR_LEVEL = 3 ; H
FormatLo
.byte %00101101
.byte %00100111
.byte %00111001
.byte %00110011
.byte %00001110
.byte %00000100
.byte %00011010
.byte %00010000
FormatHi
.byte %00010010
.byte %01111100
.byte %11001110
.byte %10100000
.byte %11000100
.byte %10101010
.byte %00011000
.byte %01110110
ENDIF
ENDIF ; /QR_SINGLE_MASK = 0
; position of the 15 type information bits
FormatX1

32
QRCodeGenDemo.asm
View File

@ -38,9 +38,9 @@ NTSC = 1
; QR Code Generator Switches
QR_VERSION = 2 ; 1, 2 or 3 (TODO 1 and 3)
QR_LEVEL = 1 ; 0 (L) or 1 (M) (TODO: 2 (Q) and 3 (H))
QR_LEVEL = 1 ; 0 (L), 1 (M), 2 (Q) and 3 (H))
QR_OVERLAP = 1 ; overlaps input and output data to save RAM (0 not tested!)
QR_SINGLE_MASK = 1 ; (-255) if 1 uses only 1 of the 8 mask pattern
QR_SINGLE_MASK = 0 ; (-255) if 1 uses only 1 of the 8 mask pattern
QR_PADDING = 1 ; (+22) add padding bytes
IF QR_VERSION = 1 || QR_VERSION = 3
@ -85,7 +85,7 @@ msgData = data + QR_DEGREE ; (QR_MAX_DATA = 28 bytes)
;- - - - - - - - - - - - - - - - - - - -
; The QR code overlaps the data! It overwrites the data while being drawn.
IF QR_OVERLAP
qrCodeLst = data + 6 ; all but 6 bytes overlap (version 2 only!)
qrCodeLst = data + 6 ; all but 6 bytes overlap (version 2 only!)
ds NUM_FIRST + QR_SIZE*3 - QR_TOTAL + 6 ; 38 bytes
ELSE
qrCodeLst ds NUM_FIRST + QR_SIZE*3 ; 76 bytes
@ -250,23 +250,23 @@ DrawScreen SUBROUTINE
.tmpFirst = tmpVars
; the QR code kernel
.loopKernel ; @55
.loopKernel ; @53
lda FirstIdxTbl,x ; 4*
cmp #1
cmp #1 ; 2
bcs .newFirst ; 2/3
lsr .tmpFirst ; 5
bpl .endFirst ; 3 = 14 unconditional
bpl .endFirst ; 3 = 16 unconditional
.newFirst ; @62
; $bf/$3f | $01 | $fe
bne .enterLoop ; 2/3
lda firstMsl ; 3
.enterLoop
sta .tmpFirst ; 3 = 7
.endFirst ; @69
sta .tmpFirst ; 3 = 8
.endFirst ; @70/69
ldy #2 ; 2
.loopBlock
sta WSYNC ; 3 @74
sta WSYNC ; 3 @75/74
;---------------------------------------
;M1-P0-P1-P0
lda .tmpFirst ; 3
@ -276,13 +276,17 @@ DrawScreen SUBROUTINE
sta GRP1 ; 3
lda grp0LLst,x ; 4
sta GRP0 ; 3
SLEEP 17 ;17
SLEEP 17-7 ;10
lda grp0RLst,x ; 4
dey ; 2
sta GRP0 ; 3 = 40 @48
bne .loopBlock ; 3/2
dey ; 2 = 30
cpy #$01 ; 2
bne .isff ; 2/3
BIT_B ; 1
.isff
dex ; 2
bpl .loopKernel ; 3/2=7/6
sta GRP0 ; 3 = 10 @48
bcs .loopBlock ; 2/3
bpl .loopKernel ; 3/2=5/4
sta WSYNC
;---------------------------------------------------------------
sty ENAM1