powerpc sstep: Add support for extswsli instruction (3e751acb) · Commits · 戴 / test

This adds emulation support for the following integer instructions: * Extend-Sign Word and Shift Left Immediate (extswsli[.]) Signed-off-by:

arch/powerpc/lib/sstep.c

+14 −0

Original line number	Diff line number	Diff line
		@@ -1935,6 +1935,20 @@ int analyse_instr(struct instruction_op op, const struct pt_regs regs,
		op->xerval &= ~XER_CA;
		set_ca32(op, op->xerval & XER_CA);
		goto logical_done;

		case 890: /* extswsli with sh_5 = 0 */
		case 891: /* extswsli with sh_5 = 1 */
		if (!cpu_has_feature(CPU_FTR_ARCH_300))
		return -1;
		op->type = COMPUTE + SETREG;
		sh = rb \| ((instr & 2) << 4);
		val = (signed int) regs->gpr[rd];
		if (sh)
		op->val = ROTATE(val, sh) & MASK64(0, 63 - sh);
		else
		op->val = val;
		goto logical_done;

		#endif /* __powerpc64__ */

		/*