diff options
Diffstat (limited to 'libpdbg/chip.c')
| -rw-r--r-- | libpdbg/chip.c | 26 |
1 files changed, 26 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)}; |
