gwj / at91sam9263 · Commits

Commit 3415a4ddb4dc88a206b25cc4daec4b506bfa5096

Authored by bellard
1 parent b7f0f463

invd and wbinvd support - fixed code gen logic for invlpg - simpler exception handling in load_seg() 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@487 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 2 changed files with 19 additions and 4 deletions
target-i386/op.c
  View file @3415a4d
... ... @@ -907,7 +907,7 @@ void OPPROTO op_das(void)
907 907 /* never use it with R_CS */
908 908 void OPPROTO op_movl_seg_T0(void)
909 909 {
910   - load_seg(PARAM1, T0 & 0xffff, PARAM2);
  910 + load_seg(PARAM1, T0);
911 911 }
912 912  
913 913 /* faster VM86 version */
... ...
target-i386/translate.c
  View file @3415a4d
... ... @@ -1538,10 +1538,15 @@ static void gen_setcc(DisasContext *s, int b)
1538 1538 call this function with seg_reg == R_CS */
1539 1539 static void gen_movl_seg_T0(DisasContext *s, int seg_reg, unsigned int cur_eip)
1540 1540 {
1541   - if (s->pe && !s->vm86)
1542   - gen_op_movl_seg_T0(seg_reg, cur_eip);
1543   - else
  1541 + if (s->pe && !s->vm86) {
  1542 + /* XXX: optimize by finding processor state dynamically */
  1543 + if (s->cc_op != CC_OP_DYNAMIC)
  1544 + gen_op_set_cc_op(s->cc_op);
  1545 + gen_op_jmp_im(cur_eip);
  1546 + gen_op_movl_seg_T0(seg_reg);
  1547 + } else {
1544 1548 gen_op_movl_seg_T0_vm(offsetof(CPUX86State,segs[seg_reg]));
  1549 + }
1545 1550 /* abort translation because the register may have a non zero base
1546 1551 or because ss32 may change. For R_SS, translation must always
1547 1552 stop as a special handling must be done to disable hardware
... ... @@ -3982,12 +3987,22 @@ static uint8_t *disas_insn(DisasContext *s, uint8_t *pc_start)
3982 3987 goto illegal_op;
3983 3988 gen_lea_modrm(s, modrm, &reg_addr, &offset_addr);
3984 3989 gen_op_invlpg_A0();
  3990 + gen_op_jmp_im(s->pc - s->cs_base);
  3991 + gen_eob(s);
3985 3992 }
3986 3993 break;
3987 3994 default:
3988 3995 goto illegal_op;
3989 3996 }
3990 3997 break;
  3998 + case 0x108: /* invd */
  3999 + case 0x109: /* wbinvd */
  4000 + if (s->cpl != 0) {
  4001 + gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
  4002 + } else {
  4003 + /* nothing to do */
  4004 + }
  4005 + break;
3991 4006 case 0x63: /* arpl */
3992 4007 if (!s->pe || s->vm86)
3993 4008 goto illegal_op;
... ...