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Defines | |
#define | ASMCONST const |
#define | bit_set(byte, bit) __asm__ ASMCONST ( "bset %0,@%1\n" : : "i" (bit),"r" (byte)) |
set a single bit in memory | |
#define | bit_clear(byte, bit) __asm__ ASMCONST ( "bclr %0,@%1\n" : : "i" (bit),"r" (byte)) |
clear a single bit in memory | |
#define | bit_load(mask, bit) __asm__ ASMCONST ( "bld %0,%1l\n" : : "i" (bit),"r" (mask):"cc") |
load a single bit from a mask to the carry flag | |
#define | bit_iload(mask, bit) __asm__ ASMCONST ( "bild %0,%1l\n" : : "i" (bit),"r" (mask):"cc") |
load the inverse of a single bit from a mask to the carry flag | |
#define | bit_store(byte, bit) __asm__ ASMCONST ( "bst %0,@%1\n" : : "i" (bit),"r" (byte)) |
store the carry flag to a single single bit in memory |
Definition in file bitops.h.
#define bit_clear | ( | byte, | |||
bit | ) | __asm__ ASMCONST ( "bclr %0,@%1\n" : : "i" (bit),"r" (byte)) |
clear a single bit in memory
((char*)byte)&=~(1<<bit)
Definition at line 65 of file bitops.h.
Referenced by ds_passive(), and ds_rotation_off().
#define bit_iload | ( | mask, | |||
bit | ) | __asm__ ASMCONST ( "bild %0,%1l\n" : : "i" (bit),"r" (mask):"cc") |
#define bit_load | ( | mask, | |||
bit | ) | __asm__ ASMCONST ( "bld %0,%1l\n" : : "i" (bit),"r" (mask):"cc") |
#define bit_set | ( | byte, | |||
bit | ) | __asm__ ASMCONST ( "bset %0,@%1\n" : : "i" (bit),"r" (byte)) |
set a single bit in memory
*((char*)byte)|=(1<<bit)
Definition at line 59 of file bitops.h.
Referenced by ds_active(), and ds_rotation_on().
#define bit_store | ( | byte, | |||
bit | ) | __asm__ ASMCONST ( "bst %0,@%1\n" : : "i" (bit),"r" (byte)) |
brickOS is released under the
Mozilla Public License.
Original code copyright 1998-2005 by the authors. |