diff options
| -rw-r--r-- | libpdbg/chip.c | 26 | ||||
| -rw-r--r-- | libpdbg/libpdbg.h | 1 | ||||
| -rw-r--r-- | libpdbg/operations.h | 1 |
3 files changed, 28 insertions, 0 deletions
diff --git a/libpdbg/chip.c b/libpdbg/chip.c index 31c8c80..7a93ab6 100644 --- a/libpdbg/chip.c +++ b/libpdbg/chip.c @@ -52,6 +52,20 @@ static uint64_t mfocrf(uint64_t reg, uint64_t cr) return MFOCRF_OPCODE | (reg << 21) | (1U << (12 + cr)); } +static uint64_t mtocrf(uint64_t cr, uint64_t reg) +{ + if (reg > 31) { + PR_ERROR("Invalid register specified for mfocrf\n"); + exit(1); + } + if (cr > 7) { + PR_ERROR("Invalid CR field specified\n"); + exit(1); + } + + return MTOCRF_OPCODE | (reg << 21) | (1U << (12 + cr)); +} + static uint64_t mfnia(uint64_t reg) { if (reg > 31) @@ -303,6 +317,18 @@ int ram_getcr(struct pdbg_target *thread, uint32_t *value) return 0; } +int ram_putcr(struct pdbg_target *thread, uint32_t value) +{ + uint64_t opcodes[] = {mfspr(0, 277), mtocrf(0, 0), mtocrf(1, 0), + mtocrf(2, 0), mtocrf(3, 0), mtocrf(4, 0), + mtocrf(5, 0), mtocrf(6, 0), mtocrf(7, 0)}; + uint64_t results[] = {value}; + + CHECK_ERR(ram_instructions(thread, opcodes, results, ARRAY_SIZE(opcodes), 0)); + + return 0; +} + int ram_putmsr(struct pdbg_target *thread, uint64_t value) { uint64_t opcodes[] = {mfspr(0, 277), mtmsr(0)}; diff --git a/libpdbg/libpdbg.h b/libpdbg/libpdbg.h index 9c29ecc..8bf7042 100644 --- a/libpdbg/libpdbg.h +++ b/libpdbg/libpdbg.h @@ -142,6 +142,7 @@ int ram_putspr(struct pdbg_target *target, int spr, uint64_t val); int ram_putgpr(struct pdbg_target *target, int spr, uint64_t val); int ram_getmsr(struct pdbg_target *target, uint64_t *val); int ram_getcr(struct pdbg_target *thread, uint32_t *value); +int ram_putcr(struct pdbg_target *thread, uint32_t value); int ram_getnia(struct pdbg_target *target, uint64_t *val); int ram_getspr(struct pdbg_target *target, int spr, uint64_t *val); int ram_getgpr(struct pdbg_target *target, int gpr, uint64_t *val); diff --git a/libpdbg/operations.h b/libpdbg/operations.h index 971a3f6..93e5df5 100644 --- a/libpdbg/operations.h +++ b/libpdbg/operations.h @@ -62,6 +62,7 @@ #define MFSPR_OPCODE 0x7c0002a6UL #define MTSPR_OPCODE 0x7c0003a6UL #define MFOCRF_OPCODE 0x7c100026UL +#define MTOCRF_OPCODE 0x7C100120UL #define MFSPR_MASK (MFSPR_OPCODE | ((0x1f) << 16) | ((0x3e0) << 6)) #define MFXER_OPCODE (MFSPR_OPCODE | ((1 & 0x1f) << 16) | ((1 & 0x3e0) << 6)) #define MTXER_OPCODE (MTSPR_OPCODE | ((1 & 0x1f) << 16) | ((1 & 0x3e0) << 6)) |
