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further shrinked bmw tiny to 1694 bytes

This commit is contained in:
bg 2010-04-15 18:09:35 +00:00
parent cecf2faff1
commit 51e0ee9391
1 changed files with 60 additions and 64 deletions
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124
bmw/bmw_small-tinyasm.S
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@ -160,8 +160,7 @@ sn:
movw r4, r24
lpm r20, Z+
rcall shiftright32
movw acc0, r22
movw acc2, r24
rcall mov32_to_acc
;---
movw r22, r2
movw r24, r4
@ -249,6 +248,16 @@ store32_to_X:
st X+, r25
ret
mov32_to_acc:
movw acc0, r22
movw acc2, r24
ret
eor_acc_from_Y_add_to_Z:
rcall load32_from_Y
rcall eor32_to_acc
rjmp add_acc_to_Z
/******************************************************************************/
/*
param q: r28:r29 (Y)
@ -332,6 +341,30 @@ load_rotate_add_M:
sbc acc3, r25
ret
;---
/******************************************************************************/
load_sn_add:
rcall load32_from_X
rcall sn
add32_to_acc:
add acc0, r22
adc acc1, r23
adc acc2, r24
adc acc3, r25
ret
/*
param q: r26:r27
param m: r22:r23
param h: r20:r21
param j: r24
*/
expand_intro:
push_range 26, 27
push r24
addelement:
mov j, r24
movw h0, r20
@ -361,32 +394,8 @@ addelement:
add r26, j
adc r27, r1
rcall load32_from_X
rjmp eor32_to_acc
;---
/******************************************************************************/
load_sn_add:
rcall load32_from_X
rcall sn
add32_to_acc:
add acc0, r22
adc acc1, r23
adc acc2, r24
adc acc3, r25
ret
/*
param q: r26:r27
param m: r22:r23
param h: r20:r21
param j: r24
*/
expand_intro:
push_range 26, 27
push r24
rcall addelement
rcall eor32_to_acc
;--
pop r24
pop_range 26, 27
lsl r24
@ -498,6 +507,11 @@ h1 = 5
m0 = 6
m1 = 7
restore_f1:
movw r26, r2
movw r22, r4
movw r20, r6
ret
.global bmw_small_nextBlock
.global bmw224_nextBlock
@ -644,23 +658,18 @@ f1:
movw r26, r2
clr r24
rcall expand1
movw r26, r2
movw r22, r4
movw r20, r6
rcall restore_f1
ldi r24, 1
rcall expand1
ldi r17, 2
10: movw r26, r2
movw r22, r4
movw r20, r6
10: rcall restore_f1
mov r24, r17
rcall expand2
inc r17
sbrs r17, 4
rjmp 10b
rcall restore_f1
movw r24, r2
movw r22, r4
movw r20, r6
/* call f2 */
@ -694,8 +703,7 @@ f2:
movw h0, r20
movw r28, r22
rcall load32_from_X
movw acc0, r22
movw acc2, r24
rcall mov32_to_acc
ldi r17, 15
10: rcall load32_from_X
rcall eor32_to_acc
@ -723,10 +731,8 @@ f2:
movw r26, q16_0
ldi r17, 16
10:
ld acc0, Y+
ld acc1, Y+
ld acc2, Y+
ld acc3, Y+
rcall load32_from_Y
rcall mov32_to_acc
;---
movw r22, xh0
movw r24, xh2
@ -785,9 +791,7 @@ f2:
movw acc2, xl2
rcall load32_from_X
rcall eor32_to_acc
rcall load32_from_Y
rcall eor32_to_acc
rcall add_acc_to_Z
rcall eor_acc_from_Y_add_to_Z
dec r17
brne 10b
sbiw r26, 9*4 /* X points to q[23] */
@ -795,9 +799,7 @@ f2:
eor acc1, xl0
eor acc2, xl1
eor acc3, xl2
rcall load32_from_Y
rcall eor32_to_acc
rcall add_acc_to_Z
rcall eor_acc_from_Y_add_to_Z
;---
sbiw r26, 8*4 /* X points to q[16] */
mov h0, r30
@ -817,11 +819,9 @@ f2:
rjmp 21f
20: rcall shiftright32
21:
rcall eor32_to_acc
rcall load32_from_Y
rcall eor32_to_acc
movw r30, h0
rcall add_acc_to_Z
rcall eor32_to_acc
rcall eor_acc_from_Y_add_to_Z
movw h0, r30
dec r17
brne 10b
@ -835,8 +835,7 @@ f2:
rcall load32_from_X
mov r20, r18
rcall rotateleft32
movw acc0, r22
movw acc2, r24
rcall mov32_to_acc
rcall add_acc_to_Z
inc r18
cpi r17, 5
@ -997,16 +996,13 @@ bmw256_lastBlock:
adc r23, r1
adc r24, r1
adc r25, r1
movw r30, buf0
adiw r30, 64-8
st Z+, r20
st Z+, r21
st Z+, r22
st Z+, r23
st Z+, r24
st Z+, r25
st Z+, r1
st Z+, r1
movw r26, buf0
adiw r26, 64-8
st X+, r20
st X+, r21
rcall store32_to_X
st X+, r1
st X+, r1
movw r24, ctx0
movw r22, buf0
rcall bmw_small_nextBlock