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141 lines
4.1 KiB
141 lines
4.1 KiB
/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef MACROS_H
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#define MACROS_H
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#define NUM_AXIS 4
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#define XYZE 4
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#define ABC 3
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#define XYZ 3
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#define FORCE_INLINE __attribute__((always_inline)) inline
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// Bracket code that shouldn't be interrupted
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#ifndef CRITICAL_SECTION_START
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#define CRITICAL_SECTION_START unsigned char _sreg = SREG; cli();
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#define CRITICAL_SECTION_END SREG = _sreg;
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#endif
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// Clock speed factor
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#define CYCLES_PER_MICROSECOND (F_CPU / 1000000UL) // 16 or 20
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// Remove compiler warning on an unused variable
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#define UNUSED(x) (void) (x)
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// Macros to make a string from a macro
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#define STRINGIFY_(M) #M
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#define STRINGIFY(M) STRINGIFY_(M)
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// Macros for bit masks
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#define TEST(n,b) (((n)&_BV(b))!=0)
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#define SBI(n,b) (n |= _BV(b))
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#define CBI(n,b) (n &= ~_BV(b))
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#define SET_BIT(n,b,value) (n) ^= ((-value)^(n)) & (_BV(b))
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// Macros for maths shortcuts
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#define RADIANS(d) ((d)*M_PI/180.0)
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#define DEGREES(r) ((r)*180.0/M_PI)
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#define HYPOT2(x,y) (sq(x)+sq(y))
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#define HYPOT(x,y) sqrt(HYPOT2(x,y))
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// Macros to contrain values
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#define NOLESS(v,n) do{ if (v < n) v = n; }while(0)
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#define NOMORE(v,n) do{ if (v > n) v = n; }while(0)
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// Macros to support option testing
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#define _CAT(a, ...) a ## __VA_ARGS__
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#define SWITCH_ENABLED_false 0
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#define SWITCH_ENABLED_true 1
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#define SWITCH_ENABLED_0 0
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#define SWITCH_ENABLED_1 1
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#define SWITCH_ENABLED_ 1
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#define ENABLED(b) _CAT(SWITCH_ENABLED_, b)
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#define DISABLED(b) (!_CAT(SWITCH_ENABLED_, b))
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#define NUMERIC(a) ((a) >= '0' && '9' >= (a))
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#define NUMERIC_SIGNED(a) (NUMERIC(a) || (a) == '-')
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#define COUNT(a) (sizeof(a)/sizeof(*a))
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#define ZERO(a) memset(a,0,sizeof(a))
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#define COPY(a,b) memcpy(a,b,min(sizeof(a),sizeof(b)))
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// Macros for initializing arrays
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#define ARRAY_6(v1, v2, v3, v4, v5, v6, ...) { v1, v2, v3, v4, v5, v6 }
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#define ARRAY_5(v1, v2, v3, v4, v5, ...) { v1, v2, v3, v4, v5 }
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#define ARRAY_4(v1, v2, v3, v4, ...) { v1, v2, v3, v4 }
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#define ARRAY_3(v1, v2, v3, ...) { v1, v2, v3 }
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#define ARRAY_2(v1, v2, ...) { v1, v2 }
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#define ARRAY_1(v1, ...) { v1 }
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#define _ARRAY_N(N, ...) ARRAY_ ##N(__VA_ARGS__)
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#define ARRAY_N(N, ...) _ARRAY_N(N, __VA_ARGS__)
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// Macros for adding
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#define INC_0 1
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#define INC_1 2
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#define INC_2 3
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#define INC_3 4
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#define INC_4 5
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#define INC_5 6
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#define INC_6 7
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#define INC_7 8
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#define INC_8 9
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#define INCREMENT_(n) INC_ ##n
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#define INCREMENT(n) INCREMENT_(n)
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// Macros for subtracting
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#define DEC_1 0
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#define DEC_2 1
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#define DEC_3 2
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#define DEC_4 3
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#define DEC_5 4
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#define DEC_6 5
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#define DEC_7 6
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#define DEC_8 7
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#define DEC_9 8
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#define DECREMENT_(n) DEC_ ##n
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#define DECREMENT(n) DECREMENT_(n)
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#define PIN_EXISTS(PN) (defined(PN ##_PIN) && PN ##_PIN >= 0)
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#define PENDING(NOW,SOON) ((long)(NOW-(SOON))<0)
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#define ELAPSED(NOW,SOON) (!PENDING(NOW,SOON))
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#define NOOP do{} while(0)
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#define CEILING(x,y) (((x) + (y) - 1) / (y))
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#define MIN3(a, b, c) min(min(a, b), c)
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#define MIN4(a, b, c, d) min(min(a, b), min(c, d))
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#define MAX3(a, b, c) max(max(a, b), c)
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#define MAX4(a, b, c, d) max(max(a, b), max(c, d))
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#define UNEAR_ZERO(x) ((x) < 0.000001)
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#define NEAR_ZERO(x) ((x) > -0.000001 && (x) < 0.000001)
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#define NEAR(x,y) NEAR_ZERO((x)-(y))
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#define RECIPROCAL(x) (NEAR_ZERO(x) ? 0.0 : 1.0 / (x))
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#endif //__MACROS_H
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