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Wrap delay macros in do{}while(0)

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Scott Lahteine 2018-04-26 18:18:23 -05:00
parent 58ca3be1ec
commit 7b6e742436
1 changed files with 16 additions and 16 deletions
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32
Marlin/src/core/macros.h
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@ -53,10 +53,10 @@
// Highly granular delays for step pulses, etc.
#define DELAY_0_NOP NOOP
#define DELAY_1_NOP __asm__("nop\n\t")
#define DELAY_2_NOP DELAY_1_NOP; DELAY_1_NOP
#define DELAY_3_NOP DELAY_1_NOP; DELAY_2_NOP
#define DELAY_4_NOP DELAY_1_NOP; DELAY_3_NOP
#define DELAY_5_NOP DELAY_1_NOP; DELAY_4_NOP
#define DELAY_2_NOP do{ DELAY_1_NOP; DELAY_1_NOP; }while(0)
#define DELAY_3_NOP do{ DELAY_1_NOP; DELAY_2_NOP; }while(0)
#define DELAY_4_NOP do{ DELAY_1_NOP; DELAY_3_NOP; }while(0)
#define DELAY_5_NOP do{ DELAY_1_NOP; DELAY_4_NOP; }while(0)
#define DELAY_NOPS(X) \
switch (X) { \
@ -72,23 +72,23 @@
case 2: DELAY_1_NOP; case 1: DELAY_1_NOP; \
}
#define DELAY_10_NOP DELAY_5_NOP; DELAY_5_NOP
#define DELAY_20_NOP DELAY_10_NOP; DELAY_10_NOP
#define DELAY_10_NOP do{ DELAY_5_NOP; DELAY_5_NOP; }while(0)
#define DELAY_20_NOP do{ DELAY_10_NOP; DELAY_10_NOP; }while(0)
#if CYCLES_PER_MICROSECOND == 16
#define DELAY_1US DELAY_10_NOP; DELAY_5_NOP; DELAY_1_NOP
#define DELAY_1US do { DELAY_10_NOP; DELAY_5_NOP; DELAY_1_NOP; }while(0)
#else
#define DELAY_1US DELAY_20_NOP
#endif
#define DELAY_2US DELAY_1US; DELAY_1US
#define DELAY_3US DELAY_1US; DELAY_2US
#define DELAY_4US DELAY_1US; DELAY_3US
#define DELAY_5US DELAY_1US; DELAY_4US
#define DELAY_6US DELAY_1US; DELAY_5US
#define DELAY_7US DELAY_1US; DELAY_6US
#define DELAY_8US DELAY_1US; DELAY_7US
#define DELAY_9US DELAY_1US; DELAY_8US
#define DELAY_10US DELAY_1US; DELAY_9US
#define DELAY_2US do{ DELAY_1US; DELAY_1US; }while(0)
#define DELAY_3US do{ DELAY_1US; DELAY_2US; }while(0)
#define DELAY_4US do{ DELAY_1US; DELAY_3US; }while(0)
#define DELAY_5US do{ DELAY_1US; DELAY_4US; }while(0)
#define DELAY_6US do{ DELAY_1US; DELAY_5US; }while(0)
#define DELAY_7US do{ DELAY_1US; DELAY_6US; }while(0)
#define DELAY_8US do{ DELAY_1US; DELAY_7US; }while(0)
#define DELAY_9US do{ DELAY_1US; DELAY_8US; }while(0)
#define DELAY_10US do{ DELAY_1US; DELAY_9US; }while(0)
// Remove compiler warning on an unused variable
#define UNUSED(x) (void) (x)