diff options
Diffstat (limited to '')
| -rwxr-xr-x | debian/vendor-h2o/deps/picotls/deps/micro-ecc/scripts/mult_avr.py | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/debian/vendor-h2o/deps/picotls/deps/micro-ecc/scripts/mult_avr.py b/debian/vendor-h2o/deps/picotls/deps/micro-ecc/scripts/mult_avr.py deleted file mode 100755 index d40e4c2..0000000 --- a/debian/vendor-h2o/deps/picotls/deps/micro-ecc/scripts/mult_avr.py +++ /dev/null @@ -1,203 +0,0 @@ -#!/usr/bin/env python - -import sys - -if len(sys.argv) < 2: - print "Provide the integer size in bytes" - sys.exit(1) - -size = int(sys.argv[1]) - -full_rows = size // 10 -init_size = size % 10 - -if init_size == 0: - full_rows = full_rows - 1 - init_size = 10 - -def rx(i): - return i + 2 - -def ry(i): - return i + 12 - -def emit(line, *args): - s = '"' + line + r' \n\t"' - print s % args - -#### set up registers -emit("adiw r30, %s", size - init_size) # move z -emit("adiw r28, %s", size - init_size) # move y - -for i in xrange(init_size): - emit("ld r%s, x+", rx(i)) -for i in xrange(init_size): - emit("ld r%s, y+", ry(i)) - -emit("ldi r25, 0") -print "" -if init_size == 1: - emit("mul r2, r12") - emit("st z+, r0") - emit("st z+, r1") -else: - #### first two multiplications of initial block - emit("ldi r23, 0") - emit("mul r2, r12") - emit("st z+, r0") - emit("mov r22, r1") - print "" - emit("ldi r24, 0") - emit("mul r2, r13") - emit("add r22, r0") - emit("adc r23, r1") - emit("mul r3, r12") - emit("add r22, r0") - emit("adc r23, r1") - emit("adc r24, r25") - emit("st z+, r22") - print "" - - #### rest of initial block, with moving accumulator registers - acc = [23, 24, 22] - for r in xrange(2, init_size): - emit("ldi r%s, 0", acc[2]) - for i in xrange(0, r+1): - emit("mul r%s, r%s", rx(i), ry(r - i)) - emit("add r%s, r0", acc[0]) - emit("adc r%s, r1", acc[1]) - emit("adc r%s, r25", acc[2]) - emit("st z+, r%s", acc[0]) - print "" - acc = acc[1:] + acc[:1] - for r in xrange(1, init_size-1): - emit("ldi r%s, 0", acc[2]) - for i in xrange(0, init_size-r): - emit("mul r%s, r%s", rx(r+i), ry((init_size-1) - i)) - emit("add r%s, r0", acc[0]) - emit("adc r%s, r1", acc[1]) - emit("adc r%s, r25", acc[2]) - emit("st z+, r%s", acc[0]) - print "" - acc = acc[1:] + acc[:1] - emit("mul r%s, r%s", rx(init_size-1), ry(init_size-1)) - emit("add r%s, r0", acc[0]) - emit("adc r%s, r1", acc[1]) - emit("st z+, r%s", acc[0]) - emit("st z+, r%s", acc[1]) -print "" - -#### reset y and z pointers -emit("sbiw r30, %s", 2 * init_size + 10) -emit("sbiw r28, %s", init_size + 10) - -#### load y registers -for i in xrange(10): - emit("ld r%s, y+", ry(i)) - -#### load additional x registers -for i in xrange(init_size, 10): - emit("ld r%s, x+", rx(i)) -print "" - -prev_size = init_size -for row in xrange(full_rows): - #### do x = 0-9, y = 0-9 multiplications - emit("ldi r23, 0") - emit("mul r2, r12") - emit("st z+, r0") - emit("mov r22, r1") - print "" - emit("ldi r24, 0") - emit("mul r2, r13") - emit("add r22, r0") - emit("adc r23, r1") - emit("mul r3, r12") - emit("add r22, r0") - emit("adc r23, r1") - emit("adc r24, r25") - emit("st z+, r22") - print "" - - acc = [23, 24, 22] - for r in xrange(2, 10): - emit("ldi r%s, 0", acc[2]) - for i in xrange(0, r+1): - emit("mul r%s, r%s", rx(i), ry(r - i)) - emit("add r%s, r0", acc[0]) - emit("adc r%s, r1", acc[1]) - emit("adc r%s, r25", acc[2]) - emit("st z+, r%s", acc[0]) - print "" - acc = acc[1:] + acc[:1] - - #### now we need to start shifting x and loading from z - x_regs = [2, 3, 4, 5, 6, 7, 8, 9, 10, 11] - for r in xrange(0, prev_size): - x_regs = x_regs[1:] + x_regs[:1] - emit("ld r%s, x+", x_regs[9]) # load next byte of left - emit("ldi r%s, 0", acc[2]) - for i in xrange(0, 10): - emit("mul r%s, r%s", x_regs[i], ry(9 - i)) - emit("add r%s, r0", acc[0]) - emit("adc r%s, r1", acc[1]) - emit("adc r%s, r25", acc[2]) - emit("ld r0, z") # load stored value from initial block, and add to accumulator (note z does not increment) - emit("add r%s, r0", acc[0]) - emit("adc r%s, r25", acc[1]) - emit("adc r%s, r25", acc[2]) - emit("st z+, r%s", acc[0]) # store next byte (z increments) - print "" - acc = acc[1:] + acc[:1] - - # done shifting x, start shifting y - y_regs = [12, 13, 14, 15, 16, 17, 18, 19, 20, 21] - for r in xrange(0, prev_size): - y_regs = y_regs[1:] + y_regs[:1] - emit("ld r%s, y+", y_regs[9]) # load next byte of right - emit("ldi r%s, 0", acc[2]) - for i in xrange(0, 10): - emit("mul r%s, r%s", x_regs[i], y_regs[9 -i]) - emit("add r%s, r0", acc[0]) - emit("adc r%s, r1", acc[1]) - emit("adc r%s, r25", acc[2]) - emit("ld r0, z") # load stored value from initial block, and add to accumulator (note z does not increment) - emit("add r%s, r0", acc[0]) - emit("adc r%s, r25", acc[1]) - emit("adc r%s, r25", acc[2]) - emit("st z+, r%s", acc[0]) # store next byte (z increments) - print "" - acc = acc[1:] + acc[:1] - - # done both shifts, do remaining corner - for r in xrange(1, 9): - emit("ldi r%s, 0", acc[2]) - for i in xrange(0, 10-r): - emit("mul r%s, r%s", x_regs[r+i], y_regs[9 - i]) - emit("add r%s, r0", acc[0]) - emit("adc r%s, r1", acc[1]) - emit("adc r%s, r25", acc[2]) - emit("st z+, r%s", acc[0]) - print "" - acc = acc[1:] + acc[:1] - emit("mul r%s, r%s", x_regs[9], y_regs[9]) - emit("add r%s, r0", acc[0]) - emit("adc r%s, r1", acc[1]) - emit("st z+, r%s", acc[0]) - emit("st z+, r%s", acc[1]) - print "" - - prev_size = prev_size + 10 - if row < full_rows - 1: - #### reset x, y and z pointers - emit("sbiw r30, %s", 2 * prev_size + 10) - emit("sbiw r28, %s", prev_size + 10) - emit("sbiw r26, %s", prev_size) - - #### load x and y registers - for i in xrange(10): - emit("ld r%s, x+", rx(i)) - emit("ld r%s, y+", ry(i)) - print "" - -emit("eor r1, r1") |