1 #ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H 2 #define _SELFTESTS_POWERPC_INSTRUCTIONS_H 3 4 #include <stdio.h> 5 #include <stdlib.h> 6 7 /* This defines the "copy" instruction from Power ISA 3.0 Book II, section 4.4. */ 8 #define __COPY(RA, RB, L) \ 9 (0x7c00060c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10)) 10 #define COPY(RA, RB, L) \ 11 .long __COPY((RA), (RB), (L)) 12 13 static inline void copy(void *i) 14 { 15 asm volatile(str(COPY(0, %0, 0))";" 16 : 17 : "b" (i) 18 : "memory" 19 ); 20 } 21 22 static inline void copy_first(void *i) 23 { 24 asm volatile(str(COPY(0, %0, 1))";" 25 : 26 : "b" (i) 27 : "memory" 28 ); 29 } 30 31 /* This defines the "paste" instruction from Power ISA 3.0 Book II, section 4.4. */ 32 #define __PASTE(RA, RB, L, RC) \ 33 (0x7c00070c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10) | (RC) << (31-31)) 34 #define PASTE(RA, RB, L, RC) \ 35 .long __PASTE((RA), (RB), (L), (RC)) 36 37 static inline int paste(void *i) 38 { 39 int cr; 40 41 asm volatile(str(PASTE(0, %1, 0, 0))";" 42 "mfcr %0;" 43 : "=r" (cr) 44 : "b" (i) 45 : "memory" 46 ); 47 return cr; 48 } 49 50 static inline int paste_last(void *i) 51 { 52 int cr; 53 54 asm volatile(str(PASTE(0, %1, 1, 1))";" 55 "mfcr %0;" 56 : "=r" (cr) 57 : "b" (i) 58 : "memory" 59 ); 60 return cr; 61 } 62 63 #define PPC_INST_COPY __COPY(0, 0, 0) 64 #define PPC_INST_COPY_FIRST __COPY(0, 0, 1) 65 #define PPC_INST_PASTE __PASTE(0, 0, 0, 0) 66 #define PPC_INST_PASTE_LAST __PASTE(0, 0, 1, 1) 67 68 #endif /* _SELFTESTS_POWERPC_INSTRUCTIONS_H */ 69
