mirror of
https://github.com/pvvx/RTL00ConsoleROM.git
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20 lines
1 KiB
C
20 lines
1 KiB
C
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#ifndef _MASK_H_
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#define _MASK_H_
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#include <stdint.h>
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#define mask8(mask, value) ((((uint8_t)(value)) << __builtin_ctz((mask))) & ((uint8_t)(mask)))
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#define mask8_set(target, mask, value) do{ (target) = ((target) & ~((uint8_t)(mask))) | mask8(mask, value); }while(0)
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#define mask8_get(target, mask) (((target) & ((uint8_t)(mask))) >> __builtin_ctz((mask)))
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#define mask16(mask, value) ((((uint16_t)(value)) << __builtin_ctz((mask))) & ((uint16_t)(mask)))
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#define mask16_set(target, mask, value) do{ (target) = ((target) & ~((uint16_t)(mask))) | mask16(mask, value); }while(0)
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#define mask16_get(target, mask) (((target) & ((uint16_t)(mask))) >> __builtin_ctz((mask)))
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#define mask32(mask, value) ((((uint32_t)(value)) << __builtin_ctz((mask))) & ((uint32_t)(mask)))
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#define mask32_set(target, mask, value) do{ (target) = ((target) & ~((uint32_t)(mask))) | mask32(mask, value); }while(0)
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#define mask32_get(target, mask) (((target) & ((uint32_t)(mask))) >> __builtin_ctz((mask)))
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#endif
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