Hi everyone:
as I want to analysis the source code of qemu now, and there is a litte trouble
at this fuction:
in the file--Translate.c(target-i386)
Line 6113 :
case 0xea: /* ljmp im */
{
unsigned int selector, offset;
if (CODE64(s))
goto illegal_op;
ot = dflag ? OT_LONG : OT_WORD;
offset = insn_get(s, ot);
selector = insn_get(s, OT_WORD);
gen_op_movl_T0_im(selector);
gen_op_movl_T1_imu(offset);
}
goto do_ljmp;
------------------------------------------------------
do_ljmp:
if (s->pe && !s->vm86) {
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_ljmp_protected(cpu_tmp2_i32, cpu_T[1],
tcg_const_i32(s->pc - pc_start));
} else {
gen_op_movl_seg_T0_vm(R_CS);
gen_op_movl_T0_T1();
gen_op_jmp_T0();
}
gen_eob(s);
break;
------------------------------------------------
this fucion:
gen_helper_ljmp_protected(cpu_tmp2_i32, cpu_T[1],
tcg_const_i32(s->pc - pc_start));
I guess it should use the fuction glue() to create,but I can not find where it
is ,could someone tell me that if you konw !
thanks very much !look forward to your answer !
---------yuanzhu
11.09
