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https://github.com/A2osX/A2osX.git
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forgot to commit this one after ZP reorg
This commit is contained in:
Rémy GIBERT
parent
1fc656e102
commit
9ec40dba75
@ -6,12 +6,17 @@ AUTO 6
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.LIST OFF
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.OP 65C02
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.OR $2000
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.TF LIB/LIBCRYPT.O
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.TF /A2OSX.BOOT/LIB/LIBCRYPT.O
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*--------------------------------------
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.INB INC/MACROS.I
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.INB INC/A2OSX.I
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.INB INC/LIBCRYPT.I
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*--------------------------------------
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ZPTmpPtr1 .EQ ZPLIB
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ZPTmpPtr2 .EQ ZPLIB+2
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ZPTmpPtr3 .EQ ZPLIB+4
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ZPTmpPtr4 .EQ ZPLIB+6
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*--------------------------------------
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* DWORD Macros : Do NOT disturb carry with cpx, cpy...
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*--------------------------------------
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.MA ADC32
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@ -81,28 +86,26 @@ AUTO 6
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bne :2
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.EM
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*--------------------------------------
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* Main entry point
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* input :
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* X = Function
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*--------------------------------------
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* Code signature and relocation table
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*--------------------------------------
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* CLD $D8
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* JMP (*,x) $7C
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* #JMPTABLE
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* /JMPTABLE
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* File Header (16 Bytes)
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*--------------------------------------
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CS.START cld
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jmp (.1,x)
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.DA #$61 6502,Level 1 (65c02)
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.DA #1 BIN Layout Version 1
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.DA 0
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.DA CS.END-CS.START
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.DA 0
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.DA 0
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.DA 0
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*--------------------------------------
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* Relocation Table
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*--------------------------------------
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.1 .DA LIB.LOAD
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.DA LIB.UNLOAD
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.DA MD5PStrA
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.DA MD5Init
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.DA MD5Update
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.DA MD5FinalizeA
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*--------------------------------------
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.DA 0
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.DA CS.END-CS.START
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.DA 0
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*--------------------------------------
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LIB.LOAD
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@ -116,19 +119,19 @@ LIB.UNLOAD clc
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* A = hMem To MessageDigest
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*--------------------------------------
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MD5PStrA >SYSCALL SYS.GetMemPtrA
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>STYA ZPQuickPtr3 1 and 2 used by other MD5 functions
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>STYA ZPTmpPtr3 1 and 2 used by other MD5 functions
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ldy #0
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lda (ZPQuickPtr3),y get PStr len
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sta ZPQuickPtr4 ZPQuickPtr4 = str len
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stz ZPQuickPtr4+1 0,PSTR len <= 255
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inc ZPQuickPtr3
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lda (ZPTmpPtr3),y get PStr len
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sta ZPTmpPtr4 ZPTmpPtr4 = str len
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stz ZPTmpPtr4+1 0,PSTR len <= 255
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inc ZPTmpPtr3
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bne .1
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inc ZPQuickPtr3+1 Make DATA skip PSTR Len Byte
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inc ZPTmpPtr3+1 Make DATA skip PSTR Len Byte
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.1 jsr MD5Init
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bcs .9
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pha save MD5 Context hMem
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>PUSHW ZPQuickPtr4 Push LEN
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>PUSHW ZPQuickPtr3 Push DATA
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>PUSHW ZPTmpPtr4 Push LEN
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>PUSHW ZPTmpPtr3 Push DATA
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pla
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pha
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>PUSHA Push MD5 Context
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@ -153,15 +156,15 @@ MD5Init >PUSHWI S.MD5.SIZE
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>PUSHBI 0
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>SYSCALL SYS.GetMem
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bcs .9
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>STYA ZPQuickPtr1
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>STYA ZPTmpPtr1
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ldy #0
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.1 lda MD5.ABCDINIT,y
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sta (ZPQuickPtr1),y
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sta (ZPTmpPtr1),y
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iny
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cpy #16
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bne .1
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lda #0
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.2 sta (ZPQuickPtr1),y
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.2 sta (ZPTmpPtr1),y
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iny
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cpy #S.MD5.SIZE Includes S.MD5.FINALIZED Flag
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bne .2
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@ -177,11 +180,11 @@ MD5Init >PUSHWI S.MD5.SIZE
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*--------------------------------------
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MD5Update >PULLA get MD5 Context
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>SYSCALL SYS.GetMemPtrA
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>STYA ZPQuickPtr1 get MD5 Context
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>STYA ZPTmpPtr1 get MD5 Context
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>PULLW R.AX get DATA
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>PULLW R.BX get LEN
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ldy #S.MD5.FINALIZED
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lda (ZPQuickPtr1),y
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lda (ZPTmpPtr1),y
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beq .1
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sec
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rts
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@ -214,7 +217,7 @@ MD5Update >PULLA get MD5 Context
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bra .52
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.53 ldy #S.MD5.EXTRABIT Mark MD5 Context as Appended
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lda #$80
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sta (ZPQuickPtr1),y
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sta (ZPTmpPtr1),y
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lda R.CL
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cmp #56 Enough room for BITCOUNT ?
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bcs .58 no
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@ -242,42 +245,42 @@ MD5Update >PULLA get MD5 Context
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* A = MessageDigest (PSTR, 16 Bytes, 32 Chars)
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*--------------------------------------
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MD5FinalizeA >SYSCALL SYS.GetMemPtrA
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>STYA ZPQuickPtr1 get MD5 Context
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>STYA ZPTmpPtr1 get MD5 Context
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ldy #S.MD5.FINALIZED
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lda (ZPQuickPtr1),y
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lda (ZPTmpPtr1),y
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bne .11
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jsr MD5ExtraChunk
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.11 >PUSHWI 33 Len + 32 Digits
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>PUSHBI 0
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>SYSCALL SYS.GetMem
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bcs .9
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>STYA ZPQuickPtr2
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>STYA ZPTmpPtr2
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phx save hMem for return
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lda #32
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sta (ZPQuickPtr2)
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inc ZPQuickPtr2
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sta (ZPTmpPtr2)
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inc ZPTmpPtr2
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bne .10
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inc ZPQuickPtr2+1
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inc ZPTmpPtr2+1
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.10 ldy #S.MD5.ABCD0
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.1 lda (ZPQuickPtr1),y
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.1 lda (ZPTmpPtr1),y
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lsr
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lsr
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lsr
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lsr
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tax
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lda MD5.DIGITS,x
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sta (ZPQuickPtr2)
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inc ZPQuickPtr2
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sta (ZPTmpPtr2)
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inc ZPTmpPtr2
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bne .2
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inc ZPQuickPtr2+1
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.2 lda (ZPQuickPtr1),y
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inc ZPTmpPtr2+1
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.2 lda (ZPTmpPtr1),y
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and #$0F
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tax
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lda MD5.DIGITS,x
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sta (ZPQuickPtr2)
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inc ZPQuickPtr2
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sta (ZPTmpPtr2)
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inc ZPTmpPtr2
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bne .3
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inc ZPQuickPtr2+1
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inc ZPTmpPtr2+1
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.3 iny
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cpy #S.MD5.ABCD0+16
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bne .1
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@ -289,12 +292,12 @@ MD5FinalizeA >SYSCALL SYS.GetMemPtrA
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*--------------------------------------
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* MD5AppendBitCount
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* In :
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* ZPQuickPtr1 = MD5 Context
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* ZPTmpPtr1 = MD5 Context
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*--------------------------------------
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MD5AppendBitCount
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ldx #56
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ldy #S.MD5.BITCOUNT Append 8 Bytes of BITCOUNT
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.1 lda (ZPQuickPtr1),y
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.1 lda (ZPTmpPtr1),y
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sta MD5.BUFFER64,x
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inx
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iny
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@ -302,13 +305,13 @@ MD5AppendBitCount
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bne .1
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ldy #S.MD5.FINALIZED Mark MD5 Context as Finalized
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lda #$80
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sta (ZPQuickPtr1),y
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sta (ZPTmpPtr1),y
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rts
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*--------------------------------------
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* MD5UpdateBitCount
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* In :
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* CL = Size (in bytes) to add to MD5 context
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* ZPQuickPtr1 = MD5 Context
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* ZPTmpPtr1 = MD5 Context
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*--------------------------------------
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MD5UpdateBitCount
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stz R.CH
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@ -321,17 +324,17 @@ MD5UpdateBitCount
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rol R.CH
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clc
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ldy #S.MD5.BITCOUNT
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adc (ZPQuickPtr1),y
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sta (ZPQuickPtr1),y
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adc (ZPTmpPtr1),y
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sta (ZPTmpPtr1),y
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iny
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lda R.CH
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adc (ZPQuickPtr1),y
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sta (ZPQuickPtr1),y
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adc (ZPTmpPtr1),y
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sta (ZPTmpPtr1),y
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bcc .8
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.1 iny
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lda (ZPQuickPtr1),y
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lda (ZPTmpPtr1),y
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inc
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sta (ZPQuickPtr1),y
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sta (ZPTmpPtr1),y
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bne .8
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cpy #7
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bne .1
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@ -339,18 +342,18 @@ MD5UpdateBitCount
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*--------------------------------------
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* MD5ExtraChunk
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* In :
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* ZPQuickPtr1 = MD5 Context
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* ZPTmpPtr1 = MD5 Context
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*--------------------------------------
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MD5ExtraChunk ldy #S.MD5.FINALIZED
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lda #$80
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sta (ZPQuickPtr1),y Mark MD5 Context as "finalized"
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sta (ZPTmpPtr1),y Mark MD5 Context as "finalized"
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ldx #0
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ldy #S.MD5.EXTRABIT Extra Bit already appended ?
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lda (ZPQuickPtr1),y
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lda (ZPTmpPtr1),y
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bne .1
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lda #$80
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sta MD5.BUFFER64 Add extra bit to buffer
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sta (ZPQuickPtr1),y Mark Extrabit added
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sta (ZPTmpPtr1),y Mark Extrabit added
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inx
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.1 stz MD5.BUFFER64,x pad with "0"...
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inx
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@ -361,13 +364,13 @@ MD5ExtraChunk ldy #S.MD5.FINALIZED
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*--------------------------------------
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* MD5UpdateABCD0
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* In:
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* ZPQuickPtr1 = MD5 Context
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* ZPTmpPtr1 = MD5 Context
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*--------------------------------------
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MD5UpdateABCD0 ldy #0
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.1 clc ADC32 A+A0->A0, B, C, D....
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.2 lda MD5.ABCD,y
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adc (ZPQuickPtr1),y
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sta (ZPQuickPtr1),y
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adc (ZPTmpPtr1),y
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sta (ZPTmpPtr1),y
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iny
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tya
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and #3
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@ -378,13 +381,13 @@ MD5UpdateABCD0 ldy #0
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*--------------------------------------
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* MD5Transform
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* In:
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* ZPQuickPtr1 = MD5 Context
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* ZPTmpPtr1 = MD5 Context
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* 512 Bits Padded chunk in MD5.BUFFER64
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* Out:
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* Updated MD5.ABCD
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*--------------------------------------
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MD5Transform ldy #15 init ABCD Chunk with Context ABCD0
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.1 lda (ZPQuickPtr1),y
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.1 lda (ZPTmpPtr1),y
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sta MD5.ABCD,y
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dey
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bpl .1
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