semx-switch.c

这个是LINUX下的GDB调度工具的源码

  CASE (sem, INSN_LD24) : /* ld24 $dr,$uimm24 */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_ld24.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 4);

  {
    SI opval = FLD (i_uimm24);
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_LDI8) : /* ldi8 $dr,$simm8 */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_addi.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    SI opval = FLD (f_simm8);
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_LDI16) : /* ldi16 $dr,$hash$slo16 */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_add3.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 4);

  {
    SI opval = FLD (f_simm16);
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_LOCK) : /* lock $dr,@$sr */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_ld_plus.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

{
  {
    BI opval = 1;
    CPU (h_lock) = opval;
    TRACE_RESULT (current_cpu, abuf, "lock", 'x', opval);
  }
  {
    SI opval = GETMEMSI (current_cpu, pc, * FLD (i_sr));
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }
}

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MACHI_A) : /* machi $src1,$src2,$acc */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_machi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    DI opval = SRADI (SLLDI (ADDDI (GET_H_ACCUMS (FLD (f_acc)), MULDI (EXTSIDI (ANDSI (* FLD (i_src1), 0xffff0000)), EXTHIDI (TRUNCSIHI (SRASI (* FLD (i_src2), 16))))), 8), 8);
    SET_H_ACCUMS (FLD (f_acc), opval);
    TRACE_RESULT (current_cpu, abuf, "accums", 'D', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MACLO_A) : /* maclo $src1,$src2,$acc */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_machi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    DI opval = SRADI (SLLDI (ADDDI (GET_H_ACCUMS (FLD (f_acc)), MULDI (EXTSIDI (SLLSI (* FLD (i_src1), 16)), EXTHIDI (TRUNCSIHI (* FLD (i_src2))))), 8), 8);
    SET_H_ACCUMS (FLD (f_acc), opval);
    TRACE_RESULT (current_cpu, abuf, "accums", 'D', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MACWHI_A) : /* macwhi $src1,$src2,$acc */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_machi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    DI opval = ADDDI (GET_H_ACCUMS (FLD (f_acc)), MULDI (EXTSIDI (* FLD (i_src1)), EXTHIDI (TRUNCSIHI (SRASI (* FLD (i_src2), 16)))));
    SET_H_ACCUMS (FLD (f_acc), opval);
    TRACE_RESULT (current_cpu, abuf, "accums", 'D', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MACWLO_A) : /* macwlo $src1,$src2,$acc */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_machi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    DI opval = ADDDI (GET_H_ACCUMS (FLD (f_acc)), MULDI (EXTSIDI (* FLD (i_src1)), EXTHIDI (TRUNCSIHI (* FLD (i_src2)))));
    SET_H_ACCUMS (FLD (f_acc), opval);
    TRACE_RESULT (current_cpu, abuf, "accums", 'D', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MUL) : /* mul $dr,$sr */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_add.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    SI opval = MULSI (* FLD (i_dr), * FLD (i_sr));
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MULHI_A) : /* mulhi $src1,$src2,$acc */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_machi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    DI opval = SRADI (SLLDI (MULDI (EXTSIDI (ANDSI (* FLD (i_src1), 0xffff0000)), EXTHIDI (TRUNCSIHI (SRASI (* FLD (i_src2), 16)))), 16), 16);
    SET_H_ACCUMS (FLD (f_acc), opval);
    TRACE_RESULT (current_cpu, abuf, "accums", 'D', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MULLO_A) : /* mullo $src1,$src2,$acc */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_machi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    DI opval = SRADI (SLLDI (MULDI (EXTSIDI (SLLSI (* FLD (i_src1), 16)), EXTHIDI (TRUNCSIHI (* FLD (i_src2)))), 16), 16);
    SET_H_ACCUMS (FLD (f_acc), opval);
    TRACE_RESULT (current_cpu, abuf, "accums", 'D', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MULWHI_A) : /* mulwhi $src1,$src2,$acc */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_machi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    DI opval = MULDI (EXTSIDI (* FLD (i_src1)), EXTHIDI (TRUNCSIHI (SRASI (* FLD (i_src2), 16))));
    SET_H_ACCUMS (FLD (f_acc), opval);
    TRACE_RESULT (current_cpu, abuf, "accums", 'D', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MULWLO_A) : /* mulwlo $src1,$src2,$acc */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_machi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    DI opval = MULDI (EXTSIDI (* FLD (i_src1)), EXTHIDI (TRUNCSIHI (* FLD (i_src2))));
    SET_H_ACCUMS (FLD (f_acc), opval);
    TRACE_RESULT (current_cpu, abuf, "accums", 'D', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MV) : /* mv $dr,$sr */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_ld_plus.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    SI opval = * FLD (i_sr);
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MVFACHI_A) : /* mvfachi $dr,$accs */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_mvfachi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    SI opval = TRUNCDISI (SRADI (GET_H_ACCUMS (FLD (f_accs)), 32));
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MVFACLO_A) : /* mvfaclo $dr,$accs */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_mvfachi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    SI opval = TRUNCDISI (GET_H_ACCUMS (FLD (f_accs)));
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MVFACMI_A) : /* mvfacmi $dr,$accs */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_mvfachi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    SI opval = TRUNCDISI (SRADI (GET_H_ACCUMS (FLD (f_accs)), 16));
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MVFC) : /* mvfc $dr,$scr */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_ld_plus.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    SI opval = GET_H_CR (FLD (f_r2));
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MVTACHI_A) : /* mvtachi $src1,$accs */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_mvtachi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    DI opval = ORDI (ANDDI (GET_H_ACCUMS (FLD (f_accs)), MAKEDI (0, 0xffffffff)), SLLDI (EXTSIDI (* FLD (i_src1)), 32));
    SET_H_ACCUMS (FLD (f_accs), opval);
    TRACE_RESULT (current_cpu, abuf, "accums", 'D', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MVTACLO_A) : /* mvtaclo $src1,$accs */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_mvtachi_a.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    DI opval = ORDI (ANDDI (GET_H_ACCUMS (FLD (f_accs)), MAKEDI (0xffffffff, 0)), ZEXTSIDI (* FLD (i_src1)));
    SET_H_ACCUMS (FLD (f_accs), opval);
    TRACE_RESULT (current_cpu, abuf, "accums", 'D', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_MVTC) : /* mvtc $sr,$dcr */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_ld_plus.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    USI opval = * FLD (i_sr);
    SET_H_CR (FLD (f_r1), opval);
    TRACE_RESULT (current_cpu, abuf, "cr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_NEG) : /* neg $dr,$sr */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_ld_plus.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    SI opval = NEGSI (* FLD (i_sr));
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_NOP) : /* nop */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.fmt_empty.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

PROFILE_COUNT_FILLNOPS (current_cpu, abuf->addr);

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_NOT) : /* not $dr,$sr */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define FLD(f) abuf->fields.sfmt_ld_plus.f
  int UNUSED written = 0;
  IADDR UNUSED pc = abuf->addr;
  vpc = SEM_NEXT_VPC (sem_arg, pc, 2);

  {
    SI opval = INVSI (* FLD (i_sr));
    * FLD (i_dr) = opval;
    TRACE_RESULT (current_cpu, abuf, "gr", 'x', opval);
  }

#undef FLD
}
  NEXT (vpc);

  CASE (sem, INSN_RAC_DSI) : /* rac $accd,$accs,$imm1 */
{
  SEM_ARG sem_arg = SEM_SEM_ARG (vpc, sc);
  ARGBUF *abuf = SEM_ARGBUF (sem_arg);
#define