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|
INCLUDE "WRISTAPP.I"
org $100
jmp test
idx EQU $60
lidx EQU $61
k EQU $62
src1 EQU $63
src2 EQU $64
dest EQU $65
i EQU $66
j EQU $67
; BYTES 60-67 are persisent RAM for our use
; BYTES 110-435 are copied in from the EEPROM when we run
org $110
START EQU *
;0x110 The main entry point - WRIST_MAIN
jmp main
;0x113 Called when we are suspended for any reason - WRIST_SUSPEND
rts
nop
nop
;0x116 Called to handle any timers or time events - WRIST_DOTIC
rts
nop
nop
;0x119 Called when the COMM app starts and we have timers pending - WRIST_INCOMM
rts
nop
nop
;0x11c Called when the COMM app loads new data - WRIST_NEWDATA
rts
nop
nop
;0x11f The state table get routine - WRIST_GETSTATE
lda state_table0,X
rts
;0x123 The state handler for state 0
jmp handle_st0_event
;0x126 Offset of state zero into the state table
db state_table0 - state_table0
hello_string: timex6 "HELLO "
; state table
state_table0:
db 0
db EVT_ENTER, TIM_ONCE, 0 ; Initial state
db EVT_RESUME, TIM_ONCE, 0 ; Resume from a nested app
db EVT_DNNEXT, TIM_ONCE, 0 ; Next button
db EVT_MODE, TIM_ONCE, $FF ; Mode button - quit
db EVT_END
;
; (7) This is the main initialization routine which is called when we first get the app into memory
;
main:
lda #$c0 ; We want button beeps and to indicate that we have been loaded
sta $96
rts
handle_st0_event:
bset 1,$8f ; Indicate that we can be suspended
; lda BTNSTATE ; Get the event
jsr CLEARALL ; Clear the screen
lda #hello_string-start
jsr PUT6TOP
lda #SYS8_MODE ; Get the system offset for the 'MODE' string
jsr PUTMSGBOT ; and put it on the bottom line
rts
test:
lda #0
sta lidx
; data starts off as all zeros
; fixme correct time here
lda #$a6
sta DATA1+4
lda #$a7
sta DATA1+5
; don't need to init H from IH already there
jsr sha1_block
inc lidx
jsr sha1_block
; Copy H->DATA, IH->H
ldx #20
test_l1:
lda (H-1),x
sta (DATA1-1),x
lda (IH-1),x
sta (H-1),x
decx
bne test_l1
lda #$80
sta DATA1+23
lda #$a0
sta DATA2
; set KEYOR = 5c5c5c5c
lda #$5c
ldx #4
test_l2:
sta (KEYOR-1),x
decx
bne test_l2
dec lidx
jsr sha1_block
inc lidx
jsr sha1_block
lda H+16
and #$F
tax
add #(H-BASE_START)
sta src1
lda H+3,x
and #$7F
sta H+3,x
lda #(T1-BASE_START)
sta dest
lda #(ZERO-BASE_START)
jsr add4
end: bra end
get_w32_015_to_t2:
lda #(T2-BASE_START)
sta dest
lda #(ZERO-BASE_START)
sta src1
lda lidx
cmp #0
bne get_w32_015_to_t2_l1
lda j
cmp #3
bhs get_w32_015_to_t2_z1
lsla
lsla
add #(KEY-BASE_START)
sta src1
get_w32_015_to_t2_z1:
lda #(ZERO-BASE_START)
jsr add4
lda #(T2-BASE_START)
sta src1
lda #(KEYOR-BASE_START)
jsr xor4
rts
get_w32_015_to_t2_l1:
lda j
cmp #6
bhs get_w32_015_to_t2_l2
lsla
lsla
add #(DATA1-BASE_START)
bra get_w32_015_to_t2_e
get_w32_015_to_t2_l2:
cmp #15
bne get_w32_015_to_t2_l3
lda #(DATA2-BASE_START)
bra get_w32_015_to_t2_e
get_w32_015_to_t2_l3:
lda #(ZERO-BASE_START)
get_w32_015_to_t2_e:
jsr add4
rts
get_w32_to_t2:
lda idx
cmp #16
bhs get_w32_to_t2_l0
sta j ; <16 use our function
jsr get_w32_015_to_t2
rts
get_w32_to_t2_l0:
sub #15 ; store number of iterations needed in i
sta i
; fill W
lda #0
sta j
get_w32_to_t2_l1:
jsr get_w32_015_to_t2
lda j
lsla
lsla
add #(WBUF-BASE_START)
sta dest
lda #(T2-BASE_START)
sta src1
lda #(ZERO-BASE_START)
jsr add4
inc j
lda j
cmp #16
bne get_w32_to_t2_l1
get_w32_to_t2_l2:
lda #(T2-BASE_START)
sta dest
lda #(WBUF13 - BASE_START)
sta src1
lda #(WBUF8 - BASE_START)
jsr xor4 ; T2 =W13 ^ W8
lda #(T2-BASE_START)
sta src1
lda #(WBUF2 - BASE_START)
jsr xor4 ; T2 = T2 ^ W2
lda #(WBUF0 - BASE_START)
jsr xor4 ; T2= T2 ^ W0
lda #1
jsr rot_left ; T2= ROTLEFT(T2,1)
; for (x=0;x<14;++x) wbuf[x]=wbuf[x+1]
ldx #((WBUF0 + $FF - 3 ) - WBUF14)
get_w32_to_t2_l3:
lda (WBUF15 + 3 - $FF),x
sta (WBUF14 + 3 - $FF),x
incx
bne get_w32_to_t2_l3
lda #(WBUF15-BASE_START)
sta dest
lda #(ZERO-BASE_START)
jsr add4 ; WBUF15=T2
dec i
bne get_w32_to_t2_l2
rts
sha1_block:
ldx #20
sha1_block_copy_h_to_ae_loop:
lda (H-1),x
sta (VA-1),x
decx
bne sha1_block_copy_h_to_ae_loop
lda #0
sha1_block_loop:
; a contains idx
sta idx
cmp #20
bhs sha1_block_k2
lda #(K1-BASE_START)
sta k
; T1 = (B & C) | ((~B) & D)
lda #(T2-BASE_START)
sta dest
lda #(VB-BASE_START)
sta src1
lda #(FFFFFFFF-BASE_START)
jsr xor4 ;T2=~B
lda #(T2-BASE_START)
sta src1
lda #(VD-BASE_START)
jsr and4 ;T2=T2&D
bra sha1_block_t2_or_bandc ; T1=T2 | (B&C)
sha1_block_k2:
cmp #40
bhs sha1_block_k3
lda #(K2-BASE_START)
sta k
bra sha1_block_k24 ; T1 = B ^ C ^ D
sha1_block_k3:
cmp #60
bhs sha1_block_k4
; T1 = (B & C) | (B & D) | (C & D)
lda #(K3-BASE_START)
sta k
lda #(T1-BASE_START)
sta dest
lda #(VD-BASE_START)
sta src1
lda #(VB-BASE_START)
jsr and4 ; T1=B&D
lda #(T2-BASE_START)
sta dest
lda #(VC-BASE_START)
jsr and4 ; T2=C&D
lda #(T2-BASE_START)
sta src1
lda #(T1-BASE_START)
jsr or4 ; T2=T1|T2
sha1_block_t2_or_bandc:
lda #(T1-BASE_START)
sta dest
lda #(VB-BASE_START)
sta src1
lda #(VC-BASE_START)
jsr and4 ; T1 = B&C
lda #(T1-BASE_START)
sta src1
lda #(T2-BASE_START)
jsr or4 ; T1= T1|T2
bra sha1_block_shuffle
sha1_block_k4:
lda #(K4-BASE_START)
sta k
sha1_block_k24:
; T1 = B ^ C ^ D
lda #(T1-BASE_START)
sta dest
lda #(VB-BASE_START)
sta src1
lda #(VC-BASE_START)
jsr xor4
lda #(T1-BASE_START)
sta src1
lda #(VD-BASE_START)
jsr xor4
sha1_block_shuffle:
; T1 is src1 and dest here
lda #(VE-BASE_START)
jsr add4 ; T1=T1+E
lda k
jsr add4 ; T1=T1+k
jsr get_w32_to_t2 ; W[i]->T2
lda #(T1-BASE_START)
sta dest
sta src1
lda #(T2-BASE_START)
jsr add4 ; T1=T1+data
lda #(VD-BASE_START)
jsr copy_up ; E=D
lda #(VC-BASE_START)
jsr copy_up ; D=C
lda #(VB-BASE_START)
jsr copy_up ; C=B
lda #30
jsr rot_left ; C=ROTLEFT(C,30)
lda #(VA-BASE_START)
jsr copy_up ; B=A
lda #(VA-BASE_START)
sta dest
sta src1
lda #5
jsr rot_left ; A=ROTLEFT(A,5)
lda #(T1-BASE_START)
jsr add4 ; A=A+T1
lda idx
add #1
cmp #80
bhs sha1_block_done
jmp sha1_block_loop
sha1_block_done:
ldx #0
sha1_block_add0:
clc
sha1_block_add1:
lda VA,x
adc H,x
sta H,x
incx
txa
and #3
bne sha1_block_add1
cpx #20
bne sha1_block_add0
rts
copy_up:
sta src1
add #4
sta dest
lda #(ZERO-BASE_START)
add4:
sta src2
lda #$d9 ; adc $ffff,a
sta op4_src2
bra op4_binary
and4:
sta src2
lda #$d4 ; and $ffff,a
sta op4_src2
bra op4_binary
xor4:
sta src2
lda #$d8 ; eor $ffff,a
sta op4_src2
bra op4_binary
or4:
sta src2
lda #$da ; or $ffff,a
sta op4_src2
op4_binary:
ldx #0
lda #BASE_START & $ff
add src2
sta op4_src2+2
txa
adc #BASE_START>>8
sta op4_src2+1
lda #BASE_START & $ff
add src1
sta op4_src1+2
txa
adc #BASE_START>>8
sta op4_src1+1
lda #BASE_START & $ff
add dest
sta op4_dst+2
txa
adc #BASE_START>>8
sta op4_dst+1
clc
op4_1:
op4_src1:
lda $fffe,x
op4_src2:
adc $fffe,x
op4_dst:
sta $fffe,x
incx
txa
and #3
bne op4_1
rts
rot_left:
ldx dest
sta j
rot_loop:
lda BASE_START,x
rola
lda BASE_START+1,x
rola
sta BASE_START+1,x
lda BASE_START+2,x
rola
sta BASE_START+2,x
lda BASE_START+3,x
rola
sta BASE_START+3,x
lda BASE_START,x
rola
sta BASE_START,x
dec j
bne rot_loop
rts
BASE_START:
KEY:
DB $89
DB $0e
DB $38
DB $6e
DB $bb
DB $3c
DB $cf
DB $e9
DB $00
DB $00
DB $4f
DB $e4
IH:
DB $01
DB $23
DB $45
DB $67
DB $89
DB $AB
DB $CD
DB $EF
DB $FE
DB $DC
DB $BA
DB $98
DB $76
DB $54
DB $32
DB $10
DB $F0
DB $E1
DB $D2
DB $C3
H:
DB $01
DB $23
DB $45
DB $67
DB $89
DB $AB
DB $CD
DB $EF
DB $FE
DB $DC
DB $BA
DB $98
DB $76
DB $54
DB $32
DB $10
DB $F0
DB $E1
DB $D2
DB $C3
K1:
DB $99
DB $79
DB $82
DB $5A
K2:
DB $A1
DB $EB
DB $D9
DB $6E
K3:
DB $DC
DB $BC
DB $1B
DB $8F
K4:
DB $D6
DB $C1
DB $62
DB $CA
K5:
DB $D0
DB $83
DB $8C
DB $46
FFFFFFFF:
DB $FF
DB $FF
DB $FF
DB $FF
KEYOR:
DW $3636
DW $3636
bss:
VA: DW 0
DW 0
VB: DW 0
DW 0
VC: DW 0
DW 0
VD: DW 0
DW 0
VE: DW 0
DW 0
T1: DW 0
DW 0
T2: DW 0
DW 0
ZERO: DW 0
DW 0
WBUF:
WBUF0:
DW 0
DW 0
WBUF1:
DW 0
DW 0
WBUF2:
DW 0
DW 0
WBUF3:
DW 0
DW 0
WBUF4:
DW 0
DW 0
WBUF5:
DW 0
DW 0
WBUF6:
DW 0
DW 0
WBUF7:
DW 0
DW 0
WBUF8:
DW 0
DW 0
WBUF9:
DW 0
DW 0
WBUF10:
DW 0
DW 0
WBUF11:
DW 0
DW 0
WBUF12:
DW 0
DW 0
WBUF13:
DW 0
DW 0
WBUF14:
DW 0
DW 0
WBUF15:
DW 0
DW 0
DATA1:
DW 0
DW 0
DW 0
DW 0
DB 0
DB 0
DB 0
DB $80
DW 0
DW 0
DW 0
DW 0
DW 0
DW 0
DATA2:
DB $40
DB $02
DB 0
DB 0
BASE_END:
|