35 lines
870 B
C
35 lines
870 B
C
|
/*
|
||
|
|
* VideoCore IV assembler for the ACK
|
||
|
|
* © 2013 David Given
|
||
|
|
* This file is redistributable under the terms of the 3-clause BSD license.
|
||
|
|
* See the file 'Copying' in the root of the distribution for the full text.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef BINARY_H
|
||
|
|
#define BINARY_H
|
||
|
|
|
||
|
|
/* This grotesque nonsense allows us to use binary constants from C. */
|
||
|
|
|
||
|
|
#define HEX__(n) 0x##n##LU
|
||
|
|
#define B8__(x) \
|
||
|
|
((x&0x0000000FLU)?1:0) \
|
||
|
|
+((x&0x000000F0LU)?2:0) \
|
||
|
|
+((x&0x00000F00LU)?4:0) \
|
||
|
|
+((x&0x0000F000LU)?8:0) \
|
||
|
|
+((x&0x000F0000LU)?16:0) \
|
||
|
|
+((x&0x00F00000LU)?32:0) \
|
||
|
|
+((x&0x0F000000LU)?64:0) \
|
||
|
|
+((x&0xF0000000LU)?128:0)
|
||
|
|
|
||
|
|
#define B8(d) \
|
||
|
|
((unsigned char)B8__(HEX__(d)))
|
||
|
|
#define B16(dmsb,dlsb) \
|
||
|
|
(((unsigned short)B8(dmsb)<<8) + B8(dlsb))
|
||
|
|
#define B32(dmsb,db2,db3,dlsb) \
|
||
|
|
(((unsigned long)B8(dmsb)<<24) \
|
||
|
|
+ ((unsigned long)B8(db2)<<16) \
|
||
|
|
+ ((unsigned long)B8(db3)<<8) \
|
||
|
|
+ B8(dlsb))
|
||
|
|
|
||
|
|
#endif
|