/[qemu]/qemu/target-i386/helper2.c
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revision 1.5 by bellard, Wed Nov 19 22:04:21 2003 UTC revision 1.6 by bellard, Sun Nov 23 23:26:39 2003 UTC
# Line 190  void cpu_x86_set_a20(CPUX86State *env, i Line 190  void cpu_x86_set_a20(CPUX86State *env, i
190  {  {
191      a20_state = (a20_state != 0);      a20_state = (a20_state != 0);
192      if (a20_state != a20_enabled) {      if (a20_state != a20_enabled) {
193            /* if the cpu is currently executing code, we must unlink it and
194               all the potentially executing TB */
195            cpu_interrupt(env, 0);
196    
197          /* when a20 is changed, all the MMU mappings are invalid, so          /* when a20 is changed, all the MMU mappings are invalid, so
198             we must flush everything */             we must flush everything */
199          page_unmap();          page_unmap();

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