Altera DE1-SoC - Page 25

DE1-SOC COMPUTER SYSTEM WITH NIOS II For Quartus II 15.0
#ifndef __NIOS2_CTRL_REG_MACROS__
#define __NIOS2_CTRL_REG_MACROS__
/*****************************************************************************/
/* Macros for accessing the control registers. */
/*****************************************************************************/
#define NIOS2_READ_STATUS(dest) \
do { dest = __builtin_rdctl(0); } while (0)
#define NIOS2_WRITE_STATUS(src) \
do { __builtin_wrctl(0, src); } while (0)
#define NIOS2_READ_ESTATUS(dest) \
do { dest = __builtin_rdctl(1); } while (0)
#define NIOS2_READ_BSTATUS(dest) \
do { dest = __builtin_rdctl(2); } while (0)
#define NIOS2_READ_IENABLE(dest) \
do { dest = __builtin_rdctl(3); } while (0)
#define NIOS2_WRITE_IENABLE(src) \
do { __builtin_wrctl(3, src); } while (0)
#define NIOS2_READ_IPENDING(dest) \
do { dest = __builtin_rdctl(4); } while (0)
#define NIOS2_READ_CPUID(dest) \
do { dest = __builtin_rdctl(5); } while (0)
#endif
Figure 21. Macros for accessing Nios II status and control registers.
Altera Corporation - University Program
2015
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