[PATCH v2 05/13] powerpc sstep: Add support for prefixed fixed-point arithmetic
From: Jordan Niethe <hidden>
Date: 2020-02-11 05:47:21
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
This adds emulation support for the following prefixed Fixed-Point Arithmetic instructions: * Prefixed Add Immediate (paddi) Signed-off-by: Jordan Niethe <redacted> --- arch/powerpc/lib/sstep.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 0e21c21ff2be..8ba74c10bc03 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c@@ -2777,6 +2777,10 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, break; op->ea = mlsd_8lsd_ea(instr, suffix, regs); switch (suffixopcode) { + case 14: /* paddi */ + op->type = COMPUTE | PREFIXED; + op->val = op->ea; + goto compute_done; case 32: /* plwz */ op->type = MKOP(LOAD, PREFIXED, 4); break;
--
2.17.1