bg
/
avr-crypto-lib
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

further shrinked bmw tiny to 1648 bytes

This commit is contained in:
bg 2010-04-19 08:18:33 +00:00
parent 51e0ee9391
commit 0747bb9f3d
1 changed files with 42 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

82
bmw/bmw_small-tinyasm.S
View File

@ -127,14 +127,7 @@ s2: .byte 2, 1,12,25
s3: .byte 2, 2,15,29
s4: .byte 1, 0, 0, 0
s5: .byte 2, 0, 0, 0
/*
s0: .byte 0x34, 19
s1: .byte 0x28, 23
s2: .byte 0x9C, 25
s3: .byte 0xAF, 29
s4: .byte 0x00, 0
s5: .byte 0x80, 0
*/
h0 = 10
h1 = 11
m0 = 12
@ -177,8 +170,7 @@ sn:
pop acc2
pop acc1
pop acc0
pop_range 2, 5
ret
rjmp pop5
/******************************************************************************/
/*
@ -506,21 +498,28 @@ h0 = 4
h1 = 5
m0 = 6
m1 = 7
ctx0 = 2
ctx1 = 3
msg0 = 4
msg1 = 5
restore_f1:
movw r26, r2
movw r22, r4
movw r20, r6
ret
bmw_small_nextBlock_early:
movw r24, ctx0
movw r22, msg0
.global bmw_small_nextBlock
.global bmw224_nextBlock
.global bmw256_nextBlock
bmw_small_nextBlock:
bmw224_nextBlock:
bmw256_nextBlock:
push_range 2, 7
push_range 28, 29
push_range 2, 17
push_range 8, 17
stack_alloc_large 32*4, r28, r29
ldi r16, 0x4f
push r16
@ -851,8 +850,15 @@ f2:
; rcall printX
;--- END DBG
stack_free_large3 32*4+4
pop_range 2, 17
pop_range 10, 17
pop9:
pop_range 8, 9
pop28:
pop_range 28, 29
pop7:
pop_range 6, 7
pop5:
pop_range 2, 5
ret
/******************************************************************************/
@ -901,9 +907,7 @@ bmw256_lastBlock:
1:
cpi len1, hi8(512)
brlo 2f
movw r24, ctx0
movw r22, blc0
rcall bmw_small_nextBlock
rcall bmw_small_nextBlock_early
ldi r24, 64
add blc0, r24
adc blc1, r1
@ -965,9 +969,8 @@ bmw256_lastBlock:
breq 400f
cpi len0, 192
brlo 400f
movw r24, ctx0
movw r22, buf0
rcall bmw_small_nextBlock
movw blc0, buf0
rcall bmw_small_nextBlock_early
movw r26, buf0
ldi r20, 64-8
350:
@ -1003,9 +1006,8 @@ bmw256_lastBlock:
rcall store32_to_X
st X+, r1
st X+, r1
movw r24, ctx0
movw r22, buf0
rcall bmw_small_nextBlock
movw blc0, buf0
rcall bmw_small_nextBlock_early
/* memset(pctx.buffer, 0xaa, 64);
for(i=0; i<16;++i){
pctx.buffer[i*4] = i+0xa0;
@ -1024,9 +1026,9 @@ bmw256_lastBlock:
/* bmw_small_nextBlock((bmw_small_ctx_t*)&pctx, ctx->h);
memcpy(ctx->h, pctx.buffer, 64);
*/
movw r24, buf0
movw r22, ctx0
rcall bmw_small_nextBlock
movw r24, buf0
movw r22, ctx0
rcall bmw_small_nextBlock
ldi r18, 64
movw r26, ctx0
movw r30, buf0
@ -1037,9 +1039,7 @@ bmw256_lastBlock:
brne 600b
stack_free_large 68
pop_range 28, 29
pop_range 2, 7
ret
rjmp pop28
/*******************************************************************************
@ -1106,10 +1106,10 @@ dst0 = 10
dst1 = 11
.global bmw256
bmw256:
push r16
ldi r16, 1
set
rjmp bmw_small_all
/*******************************************************************************
* void bmw224(void* dest, const void* msg, uint32_t length_b){
* bmw_small_ctx_t ctx;
@ -1139,15 +1139,21 @@ dst0 = 6
dst1 = 7
.global bmw224
bmw224:
push r16
clr r16
clt
rjmp bmw_small_all
bmw_small_all:
push_range 2, 9
push_range 2, 7
push_range 28, 29
push_range 8, 9
push r16
stack_alloc_large 64+4
adiw r30, 1
movw ctx0, r30
clr r16
brtc 10f
inc r16
10: movw ctx0, r30
movw dst0, r24
movw msg0, r22
movw len0, r18
@ -1162,9 +1168,7 @@ bmw_small_all:
mov r18, len2
or r18, len3
breq 50f
movw r24, ctx0
movw r22, msg0
rcall bmw_small_nextBlock
rcall bmw_small_nextBlock_early
subi len1, 2
sbc len2, r1
sbc len3, r1
@ -1185,10 +1189,8 @@ bmw_small_all:
adc r31, r1
icall
stack_free_large 64+4
pop_range 28, 29
pop_range 2, 9
pop r16
ret
rjmp pop9
init_lut:
rjmp bmw224_init