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Fix bad Merge

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Makuna
2015-06-08 18:23:53 -07:00
parent 07360645af
commit 3f798a16ba
1 changed files with 127 additions and 97 deletions
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218
NeoPixelBus.cpp
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@@ -290,82 +290,82 @@ void NeoPixelBus::Show(void)
asm volatile(
"headD:" "\n\t" // Clk Pseudocode
// Bit 7:
"out %[port] , %[hi]" "\n\t" // 1 PORT = hi
"out %[_port] , %[hi]" "\n\t" // 1 PORT = hi
"mov %[n2] , %[lo]" "\n\t" // 1 n2 = lo
"out %[port] , %[n1]" "\n\t" // 1 PORT = n1
"out %[_port] , %[n1]" "\n\t" // 1 PORT = n1
"rjmp .+0" "\n\t" // 2 nop nop
"sbrc %[byte] , 6" "\n\t" // 1-2 if(b & 0x40)
"mov %[n2] , %[hi]" "\n\t" // 0-1 n2 = hi
"out %[port] , %[lo]" "\n\t" // 1 PORT = lo
"out %[_port] , %[lo]" "\n\t" // 1 PORT = lo
"rjmp .+0" "\n\t" // 2 nop nop
// Bit 6:
"out %[port] , %[hi]" "\n\t" // 1 PORT = hi
"out %[_port] , %[hi]" "\n\t" // 1 PORT = hi
"mov %[n1] , %[lo]" "\n\t" // 1 n1 = lo
"out %[port] , %[n2]" "\n\t" // 1 PORT = n2
"out %[_port] , %[n2]" "\n\t" // 1 PORT = n2
"rjmp .+0" "\n\t" // 2 nop nop
"sbrc %[byte] , 5" "\n\t" // 1-2 if(b & 0x20)
"mov %[n1] , %[hi]" "\n\t" // 0-1 n1 = hi
"out %[port] , %[lo]" "\n\t" // 1 PORT = lo
"out %[_port] , %[lo]" "\n\t" // 1 PORT = lo
"rjmp .+0" "\n\t" // 2 nop nop
// Bit 5:
"out %[port] , %[hi]" "\n\t" // 1 PORT = hi
"out %[_port] , %[hi]" "\n\t" // 1 PORT = hi
"mov %[n2] , %[lo]" "\n\t" // 1 n2 = lo
"out %[port] , %[n1]" "\n\t" // 1 PORT = n1
"out %[_port] , %[n1]" "\n\t" // 1 PORT = n1
"rjmp .+0" "\n\t" // 2 nop nop
"sbrc %[byte] , 4" "\n\t" // 1-2 if(b & 0x10)
"mov %[n2] , %[hi]" "\n\t" // 0-1 n2 = hi
"out %[port] , %[lo]" "\n\t" // 1 PORT = lo
"out %[_port] , %[lo]" "\n\t" // 1 PORT = lo
"rjmp .+0" "\n\t" // 2 nop nop
// Bit 4:
"out %[port] , %[hi]" "\n\t" // 1 PORT = hi
"out %[_port] , %[hi]" "\n\t" // 1 PORT = hi
"mov %[n1] , %[lo]" "\n\t" // 1 n1 = lo
"out %[port] , %[n2]" "\n\t" // 1 PORT = n2
"out %[_port] , %[n2]" "\n\t" // 1 PORT = n2
"rjmp .+0" "\n\t" // 2 nop nop
"sbrc %[byte] , 3" "\n\t" // 1-2 if(b & 0x08)
"mov %[n1] , %[hi]" "\n\t" // 0-1 n1 = hi
"out %[port] , %[lo]" "\n\t" // 1 PORT = lo
"out %[_port] , %[lo]" "\n\t" // 1 PORT = lo
"rjmp .+0" "\n\t" // 2 nop nop
// Bit 3:
"out %[port] , %[hi]" "\n\t" // 1 PORT = hi
"out %[_port] , %[hi]" "\n\t" // 1 PORT = hi
"mov %[n2] , %[lo]" "\n\t" // 1 n2 = lo
"out %[port] , %[n1]" "\n\t" // 1 PORT = n1
"out %[_port] , %[n1]" "\n\t" // 1 PORT = n1
"rjmp .+0" "\n\t" // 2 nop nop
"sbrc %[byte] , 2" "\n\t" // 1-2 if(b & 0x04)
"mov %[n2] , %[hi]" "\n\t" // 0-1 n2 = hi
"out %[port] , %[lo]" "\n\t" // 1 PORT = lo
"out %[_port] , %[lo]" "\n\t" // 1 PORT = lo
"rjmp .+0" "\n\t" // 2 nop nop
// Bit 2:
"out %[port] , %[hi]" "\n\t" // 1 PORT = hi
"out %[_port] , %[hi]" "\n\t" // 1 PORT = hi
"mov %[n1] , %[lo]" "\n\t" // 1 n1 = lo
"out %[port] , %[n2]" "\n\t" // 1 PORT = n2
"out %[_port] , %[n2]" "\n\t" // 1 PORT = n2
"rjmp .+0" "\n\t" // 2 nop nop
"sbrc %[byte] , 1" "\n\t" // 1-2 if(b & 0x02)
"mov %[n1] , %[hi]" "\n\t" // 0-1 n1 = hi
"out %[port] , %[lo]" "\n\t" // 1 PORT = lo
"out %[_port] , %[lo]" "\n\t" // 1 PORT = lo
"rjmp .+0" "\n\t" // 2 nop nop
// Bit 1:
"out %[port] , %[hi]" "\n\t" // 1 PORT = hi
"out %[_port] , %[hi]" "\n\t" // 1 PORT = hi
"mov %[n2] , %[lo]" "\n\t" // 1 n2 = lo
"out %[port] , %[n1]" "\n\t" // 1 PORT = n1
"out %[_port] , %[n1]" "\n\t" // 1 PORT = n1
"rjmp .+0" "\n\t" // 2 nop nop
"sbrc %[byte] , 0" "\n\t" // 1-2 if(b & 0x01)
"mov %[n2] , %[hi]" "\n\t" // 0-1 n2 = hi
"out %[port] , %[lo]" "\n\t" // 1 PORT = lo
"out %[_port] , %[lo]" "\n\t" // 1 PORT = lo
"sbiw %[count], 1" "\n\t" // 2 i-- (don't act on Z flag yet)
// Bit 0:
"out %[port] , %[hi]" "\n\t" // 1 PORT = hi
"out %[_port] , %[hi]" "\n\t" // 1 PORT = hi
"mov %[n1] , %[lo]" "\n\t" // 1 n1 = lo
"out %[port] , %[n2]" "\n\t" // 1 PORT = n2
"out %[_port] , %[n2]" "\n\t" // 1 PORT = n2
"ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++
"sbrc %[byte] , 7" "\n\t" // 1-2 if(b & 0x80)
"mov %[n1] , %[hi]" "\n\t" // 0-1 n1 = hi
"out %[port] , %[lo]" "\n\t" // 1 PORT = lo
"out %[_port] , %[lo]" "\n\t" // 1 PORT = lo
"brne headD" "\n" // 2 while(i) (Z flag set above)
: [byte] "+r" (b),
[n1] "+r" (n1),
[n2] "+r" (n2),
[count] "+w" (i)
: [port] "I" (_SFR_IO_ADDR(PORTD)),
: [_port] "I" (_SFR_IO_ADDR(PORTD)),
[ptr] "e" (ptr),
[hi] "r" (hi),
[lo] "r" (lo));
@@ -384,72 +384,72 @@ void NeoPixelBus::Show(void)
asm volatile(
"headB:" "\n\t"
"out %[port] , %[hi]" "\n\t"
"out %[_port] , %[hi]" "\n\t"
"mov %[n2] , %[lo]" "\n\t"
"out %[port] , %[n1]" "\n\t"
"out %[_port] , %[n1]" "\n\t"
"rjmp .+0" "\n\t"
"sbrc %[byte] , 6" "\n\t"
"mov %[n2] , %[hi]" "\n\t"
"out %[port] , %[lo]" "\n\t"
"out %[_port] , %[lo]" "\n\t"
"rjmp .+0" "\n\t"
"out %[port] , %[hi]" "\n\t"
"out %[_port] , %[hi]" "\n\t"
"mov %[n1] , %[lo]" "\n\t"
"out %[port] , %[n2]" "\n\t"
"out %[_port] , %[n2]" "\n\t"
"rjmp .+0" "\n\t"
"sbrc %[byte] , 5" "\n\t"
"mov %[n1] , %[hi]" "\n\t"
"out %[port] , %[lo]" "\n\t"
"out %[_port] , %[lo]" "\n\t"
"rjmp .+0" "\n\t"
"out %[port] , %[hi]" "\n\t"
"out %[_port] , %[hi]" "\n\t"
"mov %[n2] , %[lo]" "\n\t"
"out %[port] , %[n1]" "\n\t"
"out %[_port] , %[n1]" "\n\t"
"rjmp .+0" "\n\t"
"sbrc %[byte] , 4" "\n\t"
"mov %[n2] , %[hi]" "\n\t"
"out %[port] , %[lo]" "\n\t"
"out %[_port] , %[lo]" "\n\t"
"rjmp .+0" "\n\t"
"out %[port] , %[hi]" "\n\t"
"out %[_port] , %[hi]" "\n\t"
"mov %[n1] , %[lo]" "\n\t"
"out %[port] , %[n2]" "\n\t"
"out %[_port] , %[n2]" "\n\t"
"rjmp .+0" "\n\t"
"sbrc %[byte] , 3" "\n\t"
"mov %[n1] , %[hi]" "\n\t"
"out %[port] , %[lo]" "\n\t"
"out %[_port] , %[lo]" "\n\t"
"rjmp .+0" "\n\t"
"out %[port] , %[hi]" "\n\t"
"out %[_port] , %[hi]" "\n\t"
"mov %[n2] , %[lo]" "\n\t"
"out %[port] , %[n1]" "\n\t"
"out %[_port] , %[n1]" "\n\t"
"rjmp .+0" "\n\t"
"sbrc %[byte] , 2" "\n\t"
"mov %[n2] , %[hi]" "\n\t"
"out %[port] , %[lo]" "\n\t"
"out %[_port] , %[lo]" "\n\t"
"rjmp .+0" "\n\t"
"out %[port] , %[hi]" "\n\t"
"out %[_port] , %[hi]" "\n\t"
"mov %[n1] , %[lo]" "\n\t"
"out %[port] , %[n2]" "\n\t"
"out %[_port] , %[n2]" "\n\t"
"rjmp .+0" "\n\t"
"sbrc %[byte] , 1" "\n\t"
"mov %[n1] , %[hi]" "\n\t"
"out %[port] , %[lo]" "\n\t"
"out %[_port] , %[lo]" "\n\t"
"rjmp .+0" "\n\t"
"out %[port] , %[hi]" "\n\t"
"out %[_port] , %[hi]" "\n\t"
"mov %[n2] , %[lo]" "\n\t"
"out %[port] , %[n1]" "\n\t"
"out %[_port] , %[n1]" "\n\t"
"rjmp .+0" "\n\t"
"sbrc %[byte] , 0" "\n\t"
"mov %[n2] , %[hi]" "\n\t"
"out %[port] , %[lo]" "\n\t"
"out %[_port] , %[lo]" "\n\t"
"sbiw %[count], 1" "\n\t"
"out %[port] , %[hi]" "\n\t"
"out %[_port] , %[hi]" "\n\t"
"mov %[n1] , %[lo]" "\n\t"
"out %[port] , %[n2]" "\n\t"
"out %[_port] , %[n2]" "\n\t"
"ld %[byte] , %a[ptr]+" "\n\t"
"sbrc %[byte] , 7" "\n\t"
"mov %[n1] , %[hi]" "\n\t"
"out %[port] , %[lo]" "\n\t"
"out %[_port] , %[lo]" "\n\t"
"brne headB" "\n"
: [byte] "+r" (b), [n1] "+r" (n1), [n2] "+r" (n2), [count] "+w" (i)
: [port] "I" (_SFR_IO_ADDR(PORTB)), [ptr] "e" (ptr), [hi] "r" (hi),
: [_port] "I" (_SFR_IO_ADDR(PORTB)), [ptr] "e" (ptr), [hi] "r" (hi),
[lo] "r" (lo));
#ifdef PORTD
@@ -481,27 +481,27 @@ void NeoPixelBus::Show(void)
asm volatile(
"head20:" "\n\t" // Clk Pseudocode (T = 0)
"st %a[port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
"st %a[_port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
"sbrc %[byte] , 7" "\n\t" // 1-2 if(b & 128)
"mov %[next], %[hi]" "\n\t" // 0-1 next = hi (T = 4)
"st %a[port], %[next]" "\n\t" // 2 PORT = next (T = 6)
"st %a[_port], %[next]" "\n\t" // 2 PORT = next (T = 6)
"mov %[next] , %[lo]" "\n\t" // 1 next = lo (T = 7)
"dec %[bit]" "\n\t" // 1 bit-- (T = 8)
"breq nextbyte20" "\n\t" // 1-2 if(bit == 0)
"rol %[byte]" "\n\t" // 1 b <<= 1 (T = 10)
"st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 12)
"st %a[_port], %[lo]" "\n\t" // 2 PORT = lo (T = 12)
"rjmp .+0" "\n\t" // 2 nop nop (T = 14)
"rjmp .+0" "\n\t" // 2 nop nop (T = 16)
"rjmp .+0" "\n\t" // 2 nop nop (T = 18)
"rjmp head20" "\n\t" // 2 -> head20 (next bit out)
"nextbyte20:" "\n\t" // (T = 10)
"st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 12)
"st %a[_port], %[lo]" "\n\t" // 2 PORT = lo (T = 12)
"nop" "\n\t" // 1 nop (T = 13)
"ldi %[bit] , 8" "\n\t" // 1 bit = 8 (T = 14)
"ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++ (T = 16)
"sbiw %[count], 1" "\n\t" // 2 i-- (T = 18)
"brne head20" "\n" // 2 if(i != 0) -> (next byte)
: [port] "+e" (port),
: [_port] "+e" (_port),
[byte] "+r" (b),
[bit] "+r" (bit),
[next] "+r" (next),
@@ -544,47 +544,47 @@ void NeoPixelBus::Show(void)
// we're exploiting the RCALL and RET as 3- and 4-cycle NOPs!
asm volatile(
"headD:" "\n\t" // (T = 0)
"out %[port], %[hi]" "\n\t" // (T = 1)
"out %[_port], %[hi]" "\n\t" // (T = 1)
"rcall bitTimeD" "\n\t" // Bit 7 (T = 15)
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeD" "\n\t" // Bit 6
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeD" "\n\t" // Bit 5
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeD" "\n\t" // Bit 4
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeD" "\n\t" // Bit 3
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeD" "\n\t" // Bit 2
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeD" "\n\t" // Bit 1
// Bit 0:
"out %[port] , %[hi]" "\n\t" // 1 PORT = hi (T = 1)
"out %[_port] , %[hi]" "\n\t" // 1 PORT = hi (T = 1)
"rjmp .+0" "\n\t" // 2 nop nop (T = 3)
"ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++ (T = 5)
"out %[port] , %[next]" "\n\t" // 1 PORT = next (T = 6)
"out %[_port] , %[next]" "\n\t" // 1 PORT = next (T = 6)
"mov %[next] , %[lo]" "\n\t" // 1 next = lo (T = 7)
"sbrc %[byte] , 7" "\n\t" // 1-2 if(b & 0x80) (T = 8)
"mov %[next] , %[hi]" "\n\t" // 0-1 next = hi (T = 9)
"nop" "\n\t" // 1 (T = 10)
"out %[port] , %[lo]" "\n\t" // 1 PORT = lo (T = 11)
"out %[_port] , %[lo]" "\n\t" // 1 PORT = lo (T = 11)
"sbiw %[count], 1" "\n\t" // 2 i-- (T = 13)
"brne headD" "\n\t" // 2 if(i != 0) -> (next byte)
"rjmp doneD" "\n\t"
"bitTimeD:" "\n\t" // nop nop nop (T = 4)
"out %[port], %[next]" "\n\t" // 1 PORT = next (T = 5)
"out %[_port], %[next]" "\n\t" // 1 PORT = next (T = 5)
"mov %[next], %[lo]" "\n\t" // 1 next = lo (T = 6)
"rol %[byte]" "\n\t" // 1 b <<= 1 (T = 7)
"sbrc %[byte], 7" "\n\t" // 1-2 if(b & 0x80) (T = 8)
"mov %[next], %[hi]" "\n\t" // 0-1 next = hi (T = 9)
"nop" "\n\t" // 1 (T = 10)
"out %[port], %[lo]" "\n\t" // 1 PORT = lo (T = 11)
"out %[_port], %[lo]" "\n\t" // 1 PORT = lo (T = 11)
"ret" "\n\t" // 4 nop nop nop nop (T = 15)
"doneD:" "\n"
: [byte] "+r" (b),
[next] "+r" (next),
[count] "+w" (i)
: [port] "I" (_SFR_IO_ADDR(PORTD)),
: [_port] "I" (_SFR_IO_ADDR(PORTD)),
[ptr] "e" (ptr),
[hi] "r" (hi),
[lo] "r" (lo));
@@ -603,44 +603,44 @@ void NeoPixelBus::Show(void)
// Same as above, just set for PORTB & stripped of comments
asm volatile(
"headB:" "\n\t"
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeB" "\n\t"
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeB" "\n\t"
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeB" "\n\t"
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeB" "\n\t"
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeB" "\n\t"
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeB" "\n\t"
"out %[port], %[hi]" "\n\t"
"out %[_port], %[hi]" "\n\t"
"rcall bitTimeB" "\n\t"
"out %[port] , %[hi]" "\n\t"
"out %[_port] , %[hi]" "\n\t"
"rjmp .+0" "\n\t"
"ld %[byte] , %a[ptr]+" "\n\t"
"out %[port] , %[next]" "\n\t"
"out %[_port] , %[next]" "\n\t"
"mov %[next] , %[lo]" "\n\t"
"sbrc %[byte] , 7" "\n\t"
"mov %[next] , %[hi]" "\n\t"
"nop" "\n\t"
"out %[port] , %[lo]" "\n\t"
"out %[_port] , %[lo]" "\n\t"
"sbiw %[count], 1" "\n\t"
"brne headB" "\n\t"
"rjmp doneB" "\n\t"
"bitTimeB:" "\n\t"
"out %[port], %[next]" "\n\t"
"out %[_port], %[next]" "\n\t"
"mov %[next], %[lo]" "\n\t"
"rol %[byte]" "\n\t"
"sbrc %[byte], 7" "\n\t"
"mov %[next], %[hi]" "\n\t"
"nop" "\n\t"
"out %[port], %[lo]" "\n\t"
"out %[_port], %[lo]" "\n\t"
"ret" "\n\t"
"doneB:" "\n"
: [byte] "+r" (b), [next] "+r" (next), [count] "+w" (i)
: [port] "I" (_SFR_IO_ADDR(PORTB)), [ptr] "e" (ptr), [hi] "r" (hi),
: [_port] "I" (_SFR_IO_ADDR(PORTB)), [ptr] "e" (ptr), [hi] "r" (hi),
[lo] "r" (lo));
#ifdef PORTD
@@ -665,16 +665,16 @@ void NeoPixelBus::Show(void)
asm volatile(
"head30:" "\n\t" // Clk Pseudocode (T = 0)
"st %a[port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
"st %a[_port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
"sbrc %[byte] , 7" "\n\t" // 1-2 if(b & 128)
"mov %[next], %[hi]" "\n\t" // 0-1 next = hi (T = 4)
"rjmp .+0" "\n\t" // 2 nop nop (T = 6)
"st %a[port], %[next]" "\n\t" // 2 PORT = next (T = 8)
"st %a[_port], %[next]" "\n\t" // 2 PORT = next (T = 8)
"rjmp .+0" "\n\t" // 2 nop nop (T = 10)
"rjmp .+0" "\n\t" // 2 nop nop (T = 12)
"rjmp .+0" "\n\t" // 2 nop nop (T = 14)
"nop" "\n\t" // 1 nop (T = 15)
"st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 17)
"st %a[_port], %[lo]" "\n\t" // 2 PORT = lo (T = 17)
"rjmp .+0" "\n\t" // 2 nop nop (T = 19)
"dec %[bit]" "\n\t" // 1 bit-- (T = 20)
"breq nextbyte30" "\n\t" // 1-2 if(bit == 0)
@@ -689,7 +689,7 @@ void NeoPixelBus::Show(void)
"ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++ (T = 26)
"sbiw %[count], 1" "\n\t" // 2 i-- (T = 28)
"brne head30" "\n" // 1-2 if(i != 0) -> (next byte)
: [port] "+e" (port),
: [_port] "+e" (_port),
[byte] "+r" (b),
[bit] "+r" (bit),
[next] "+r" (next),
@@ -717,12 +717,42 @@ void NeoPixelBus::Show(void)
volatile uint8_t next, bit;
hi = *_port | _pinMask;
lo = *_port & ~_pinMask;
hi = *_port | _pinMask;
lo = *_port & ~_pinMask;
next = lo;
bit = 8;
bit = 8;
[lo] "r" (lo));
asm volatile(
"head20:" "\n\t" // Clk Pseudocode (T = 0)
"st %a[_port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
"sbrc %[byte], 7" "\n\t" // 1-2 if(b & 128)
"mov %[next], %[hi]" "\n\t" // 0-1 next = hi (T = 4)
"dec %[bit]" "\n\t" // 1 bit-- (T = 5)
"st %a[_port], %[next]" "\n\t" // 2 PORT = next (T = 7)
"mov %[next] , %[lo]" "\n\t" // 1 next = lo (T = 8)
"breq nextbyte20" "\n\t" // 1-2 if(bit == 0) (from dec above)
"rol %[byte]" "\n\t" // 1 b <<= 1 (T = 10)
"rjmp .+0" "\n\t" // 2 nop nop (T = 12)
"nop" "\n\t" // 1 nop (T = 13)
"st %a[_port], %[lo]" "\n\t" // 2 PORT = lo (T = 15)
"nop" "\n\t" // 1 nop (T = 16)
"rjmp .+0" "\n\t" // 2 nop nop (T = 18)
"rjmp head20" "\n\t" // 2 -> head20 (next bit out)
"nextbyte20:" "\n\t" // (T = 10)
"ldi %[bit] , 8" "\n\t" // 1 bit = 8 (T = 11)
"ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++ (T = 13)
"st %a[_port], %[lo]" "\n\t" // 2 PORT = lo (T = 15)
"nop" "\n\t" // 1 nop (T = 16)
"sbiw %[count], 1" "\n\t" // 2 i-- (T = 18)
"brne head20" "\n" // 2 if(i != 0) -> (next byte)
: [_port] "+e" (_port),
[byte] "+r" (b),
[bit] "+r" (bit),
[next] "+r" (next),
[count] "+w" (i)
: [ptr] "e" (ptr),
[hi] "r" (hi),
[lo] "r" (lo));
#ifdef INCLUDE_NEO_KHZ400_SUPPORT
@@ -745,18 +775,18 @@ void NeoPixelBus::Show(void)
asm volatile(
"head40:" "\n\t" // Clk Pseudocode (T = 0)
"st %a[port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
"st %a[_port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
"sbrc %[byte] , 7" "\n\t" // 1-2 if(b & 128)
"mov %[next] , %[hi]" "\n\t" // 0-1 next = hi (T = 4)
"rjmp .+0" "\n\t" // 2 nop nop (T = 6)
"rjmp .+0" "\n\t" // 2 nop nop (T = 8)
"st %a[port], %[next]" "\n\t" // 2 PORT = next (T = 10)
"st %a[_port], %[next]" "\n\t" // 2 PORT = next (T = 10)
"rjmp .+0" "\n\t" // 2 nop nop (T = 12)
"rjmp .+0" "\n\t" // 2 nop nop (T = 14)
"rjmp .+0" "\n\t" // 2 nop nop (T = 16)
"rjmp .+0" "\n\t" // 2 nop nop (T = 18)
"rjmp .+0" "\n\t" // 2 nop nop (T = 20)
"st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 22)
"st %a[_port], %[lo]" "\n\t" // 2 PORT = lo (T = 22)
"nop" "\n\t" // 1 nop (T = 23)
"mov %[next] , %[lo]" "\n\t" // 1 next = lo (T = 24)
"dec %[bit]" "\n\t" // 1 bit-- (T = 25)
@@ -773,11 +803,11 @@ void NeoPixelBus::Show(void)
"ldi %[bit] , 8" "\n\t" // 1 bit = 8 (T = 28)
"ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++ (T = 30)
"rjmp .+0" "\n\t" // 2 nop nop (T = 32)
"st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 34)
"st %a[_port], %[lo]" "\n\t" // 2 PORT = lo (T = 34)
"rjmp .+0" "\n\t" // 2 nop nop (T = 36)
"sbiw %[count], 1" "\n\t" // 2 i-- (T = 38)
"brne head40" "\n" // 1-2 if(i != 0) -> (next byte)
: [port] "+e" (port),
: [_port] "+e" (_port),
[byte] "+r" (b),
[bit] "+r" (bit),
[next] "+r" (next),