op.c

qemu虚拟机代码

    T0 = ((int32_t) T0) >> T1;
}
#endif

/* Load and store */
#define MEMSUFFIX _raw
#include "op_mem.h"
#if !defined(CONFIG_USER_ONLY)
#define MEMSUFFIX _user
#include "op_mem.h"

#define MEMSUFFIX _kernel
#include "op_mem.h"
#endif

void OPPROTO op_ldfsr(void)
{
    PUT_FSR32(env, *((uint32_t *) &FT0));
    helper_ldfsr();
}

void OPPROTO op_stfsr(void)
{
    *((uint32_t *) &FT0) = GET_FSR32(env);
}

#ifndef TARGET_SPARC64
void OPPROTO op_rdpsr(void)
{
    do_rdpsr();
}

void OPPROTO op_wrpsr(void)
{
    do_wrpsr();
    FORCE_RET();
}

void OPPROTO op_rett(void)
{
    helper_rett();
    FORCE_RET();
}

/* XXX: use another pointer for %iN registers to avoid slow wrapping
   handling ? */
void OPPROTO op_save(void)
{
    uint32_t cwp;
    cwp = (env->cwp - 1) & (NWINDOWS - 1); 
    if (env->wim & (1 << cwp)) {
        raise_exception(TT_WIN_OVF);
    }
    set_cwp(cwp);
    FORCE_RET();
}

void OPPROTO op_restore(void)
{
    uint32_t cwp;
    cwp = (env->cwp + 1) & (NWINDOWS - 1); 
    if (env->wim & (1 << cwp)) {
        raise_exception(TT_WIN_UNF);
    }
    set_cwp(cwp);
    FORCE_RET();
}
#else
void OPPROTO op_rdccr(void)
{
    T0 = GET_CCR(env);
}

void OPPROTO op_wrccr(void)
{
    PUT_CCR(env, T0);
}

void OPPROTO op_rdtick(void)
{
    T0 = 0; // XXX read cycle counter and bit 31
}

void OPPROTO op_wrtick(void)
{
    // XXX write cycle counter and bit 31
}

void OPPROTO op_rdtpc(void)
{
    T0 = env->tpc[env->tl];
}

void OPPROTO op_wrtpc(void)
{
    env->tpc[env->tl] = T0;
}

void OPPROTO op_rdtnpc(void)
{
    T0 = env->tnpc[env->tl];
}

void OPPROTO op_wrtnpc(void)
{
    env->tnpc[env->tl] = T0;
}

void OPPROTO op_rdtstate(void)
{
    T0 = env->tstate[env->tl];
}

void OPPROTO op_wrtstate(void)
{
    env->tstate[env->tl] = T0;
}

void OPPROTO op_rdtt(void)
{
    T0 = env->tt[env->tl];
}

void OPPROTO op_wrtt(void)
{
    env->tt[env->tl] = T0;
}

void OPPROTO op_rdpstate(void)
{
    T0 = env->pstate;
}

void OPPROTO op_wrpstate(void)
{
    do_wrpstate();
}

// CWP handling is reversed in V9, but we still use the V8 register
// order.
void OPPROTO op_rdcwp(void)
{
    T0 = NWINDOWS - 1 - env->cwp;
}

void OPPROTO op_wrcwp(void)
{
    env->cwp = NWINDOWS - 1 - T0;
}

/* XXX: use another pointer for %iN registers to avoid slow wrapping
   handling ? */
void OPPROTO op_save(void)
{
    uint32_t cwp;
    cwp = (env->cwp - 1) & (NWINDOWS - 1); 
    if (env->cansave == 0) {
        raise_exception(TT_SPILL | (env->otherwin != 0 ? 
				    (TT_WOTHER | ((env->wstate & 0x38) >> 1)):
				    ((env->wstate & 0x7) << 2)));
    } else {
	if (env->cleanwin - env->canrestore == 0) {
	    // XXX Clean windows without trap
	    raise_exception(TT_CLRWIN);
	} else {
	    env->cansave--;
	    env->canrestore++;
	    set_cwp(cwp);
	}
    }
    FORCE_RET();
}

void OPPROTO op_restore(void)
{
    uint32_t cwp;
    cwp = (env->cwp + 1) & (NWINDOWS - 1); 
    if (env->canrestore == 0) {
        raise_exception(TT_FILL | (env->otherwin != 0 ? 
				   (TT_WOTHER | ((env->wstate & 0x38) >> 1)):
				   ((env->wstate & 0x7) << 2)));
    } else {
	env->cansave++;
	env->canrestore--;
	set_cwp(cwp);
    }
    FORCE_RET();
}
#endif

void OPPROTO op_exception(void)
{
    env->exception_index = PARAM1;
    cpu_loop_exit();
}

void OPPROTO op_trap_T0(void)
{
    env->exception_index = TT_TRAP + (T0 & 0x7f);
    cpu_loop_exit();
}

void OPPROTO op_trapcc_T0(void)
{
    if (T2) {
        env->exception_index = TT_TRAP + (T0 & 0x7f);
        cpu_loop_exit();
    }
    FORCE_RET();
}

void OPPROTO op_trap_ifnofpu(void)
{
    if (!env->psref) {
        env->exception_index = TT_NFPU_INSN;
        cpu_loop_exit();
    }
    FORCE_RET();
}

void OPPROTO op_fpexception_im(void)
{
    env->exception_index = TT_FP_EXCP;
    env->fsr &= ~FSR_FTT_MASK;
    env->fsr |= PARAM1;
    cpu_loop_exit();
    FORCE_RET();
}

void OPPROTO op_debug(void)
{
    helper_debug();
}

void OPPROTO op_exit_tb(void)
{
    EXIT_TB();
}

void OPPROTO op_eval_ba(void)
{
    T2 = 1;
}

void OPPROTO op_eval_be(void)
{
    T2 = FLAG_SET(PSR_ZERO);
}

void OPPROTO op_eval_ble(void)
{
    target_ulong Z = FLAG_SET(PSR_ZERO), N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);
    
    T2 = Z | (N ^ V);
}

void OPPROTO op_eval_bl(void)
{
    target_ulong N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

    T2 = N ^ V;
}

void OPPROTO op_eval_bleu(void)
{
    target_ulong Z = FLAG_SET(PSR_ZERO), C = FLAG_SET(PSR_CARRY);

    T2 = C | Z;
}

void OPPROTO op_eval_bcs(void)
{
    T2 = FLAG_SET(PSR_CARRY);
}

void OPPROTO op_eval_bvs(void)
{
    T2 = FLAG_SET(PSR_OVF);
}

void OPPROTO op_eval_bn(void)
{
    T2 = 0;
}

void OPPROTO op_eval_bneg(void)
{
    T2 = FLAG_SET(PSR_NEG);
}

void OPPROTO op_eval_bne(void)
{
    T2 = !FLAG_SET(PSR_ZERO);
}

void OPPROTO op_eval_bg(void)
{
    target_ulong Z = FLAG_SET(PSR_ZERO), N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

    T2 = !(Z | (N ^ V));
}

void OPPROTO op_eval_bge(void)
{
    target_ulong N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

    T2 = !(N ^ V);
}

void OPPROTO op_eval_bgu(void)
{
    target_ulong Z = FLAG_SET(PSR_ZERO), C = FLAG_SET(PSR_CARRY);

    T2 = !(C | Z);
}

void OPPROTO op_eval_bcc(void)
{
    T2 = !FLAG_SET(PSR_CARRY);
}

void OPPROTO op_eval_bpos(void)
{
    T2 = !FLAG_SET(PSR_NEG);
}

void OPPROTO op_eval_bvc(void)
{
    T2 = !FLAG_SET(PSR_OVF);
}

#ifdef TARGET_SPARC64
void OPPROTO op_eval_xbe(void)
{
    T2 = XFLAG_SET(PSR_ZERO);
}

void OPPROTO op_eval_xble(void)
{
    target_ulong Z = XFLAG_SET(PSR_ZERO), N = XFLAG_SET(PSR_NEG), V = XFLAG_SET(PSR_OVF);
    
    T2 = Z | (N ^ V);
}

void OPPROTO op_eval_xbl(void)
{
    target_ulong N = XFLAG_SET(PSR_NEG), V = XFLAG_SET(PSR_OVF);

    T2 = N ^ V;
}

void OPPROTO op_eval_xbleu(void)
{
    target_ulong Z = XFLAG_SET(PSR_ZERO), C = XFLAG_SET(PSR_CARRY);

    T2 = C | Z;
}

void OPPROTO op_eval_xbcs(void)
{
    T2 = XFLAG_SET(PSR_CARRY);
}

void OPPROTO op_eval_xbvs(void)
{
    T2 = XFLAG_SET(PSR_OVF);
}

void OPPROTO op_eval_xbneg(void)
{
    T2 = XFLAG_SET(PSR_NEG);
}

void OPPROTO op_eval_xbne(void)
{
    T2 = !XFLAG_SET(PSR_ZERO);
}

void OPPROTO op_eval_xbg(void)
{
    target_ulong Z = XFLAG_SET(PSR_ZERO), N = XFLAG_SET(PSR_NEG), V = XFLAG_SET(PSR_OVF);

    T2 = !(Z | (N ^ V));
}

void OPPROTO op_eval_xbge(void)
{
    target_ulong N = XFLAG_SET(PSR_NEG), V = XFLAG_SET(PSR_OVF);

    T2 = !(N ^ V);
}

void OPPROTO op_eval_xbgu(void)
{
    target_ulong Z = XFLAG_SET(PSR_ZERO), C = XFLAG_SET(PSR_CARRY);

    T2 = !(C | Z);
}

void OPPROTO op_eval_xbcc(void)
{
    T2 = !XFLAG_SET(PSR_CARRY);
}

void OPPROTO op_eval_xbpos(void)
{
    T2 = !XFLAG_SET(PSR_NEG);
}

void OPPROTO op_eval_xbvc(void)
{
    T2 = !XFLAG_SET(PSR_OVF);
}
#endif

#define FCC
#define FFLAG_SET(x) (env->fsr & x? 1: 0)
#include "fbranch_template.h"

#ifdef TARGET_SPARC64
#define FCC _fcc1
#define FFLAG_SET(x) ((env->fsr & ((uint64_t)x >> 32))? 1: 0)
#include "fbranch_template.h"
#define FCC _fcc2
#define FFLAG_SET(x) ((env->fsr & ((uint64_t)x >> 34))? 1: 0)
#include "fbranch_template.h"
#define FCC _fcc3
#define FFLAG_SET(x) ((env->fsr & ((uint64_t)x >> 36))? 1: 0)
#include "fbranch_template.h"
#endif

#ifdef TARGET_SPARC64
void OPPROTO op_eval_brz(void)
{
    T2 = (T0 == 0);
}

void OPPROTO op_eval_brnz(void)
{
    T2 = (T0 != 0);
}

void OPPROTO op_eval_brlz(void)
{
    T2 = ((int64_t)T0 < 0);
}

void OPPROTO op_eval_brlez(void)
{
    T2 = ((int64_t)T0 <= 0);
}

void OPPROTO op_eval_brgz(void)
{
    T2 = ((int64_t)T0 > 0);
}

void OPPROTO op_eval_brgez(void)
{
    T2 = ((int64_t)T0 >= 0);
}

void OPPROTO op_jmp_im64(void)
{
    env->pc = PARAMQ1;
}

void OPPROTO op_movq_npc_im64(void)
{
    env->npc = PARAMQ1;
}
#endif

void OPPROTO op_jmp_im(void)
{
    env->pc = (uint32_t)PARAM1;
}

void OPPROTO op_movl_npc_im(void)
{
    env->npc = (uint32_t)PARAM1;
}

void OPPROTO op_movl_npc_T0(void)
{
    env->npc = T0;
}

void OPPROTO op_mov_pc_npc(void)
{
    env->pc = env->npc;
}

void OPPROTO op_next_insn(void)
{
    env->pc = env->npc;
    env->npc = env->npc + 4;
}

void OPPROTO op_goto_tb0(void)
{
    GOTO_TB(op_goto_tb0, PARAM1, 0);
}

void OPPROTO op_goto_tb1(void)
{
    GOTO_TB(op_goto_tb1, PARAM1, 1);
}

void OPPROTO op_jmp_label(void)
{
    GOTO_LABEL_PARAM(1);
}

void OPPROTO op_jnz_T2_label(void)
{
    if (T2)
        GOTO_LABEL_PARAM(1);
    FORCE_RET();
}

void OPPROTO op_jz_T2_label(void)
{
    if (!T2)
        GOTO_LABEL_PARAM(1);
    FORCE_RET();
}

void OPPROTO op_flush_T0(void)
{
    helper_flush(T0);
}

void OPPROTO op_fnegs(void)
{
    FT0 = -FT1;
}

void OPPROTO op_fabss(void)
{
    do_fabss();
}

#ifdef TARGET_SPARC64
void OPPROTO op_fnegd(void)
{
    DT0 = -DT1;
}

void OPPROTO op_fabsd(void)
{
    do_fabsd();
}
#endif

void OPPROTO op_fsqrts(void)
{
    do_fsqrts();
}

void OPPROTO op_fsqrtd(void)
{
    do_fsqrtd();
}

void OPPROTO op_fmuls(void)
{
    FT0 *= FT1;
}

void OPPROTO op_fmuld(void)
{
    DT0 *= DT1;
}

void OPPROTO op_fsmuld(void)
{
    DT0 = FT0 * FT1;
}

void OPPROTO op_fadds(void)
{
    FT0 += FT1;
}

void OPPROTO op_faddd(void)
{
    DT0 += DT1;
}

void OPPROTO op_fsubs(void)
{
    FT0 -= FT1;
}

void OPPROTO op_fsubd(void)
{
    DT0 -= DT1;
}

void OPPROTO op_fdivs(void)
{
    FT0 /= FT1;
}

void OPPROTO op_fdivd(void)
{
    DT0 /= DT1;
}

void OPPROTO op_fcmps(void)
{
    do_fcmps();
}

void OPPROTO op_fcmpd(void)
{
    do_fcmpd();
}

#ifdef TARGET_SPARC64
void OPPROTO op_fcmps_fcc1(void)
{
    do_fcmps_fcc1();
}

void OPPROTO op_fcmpd_fcc1(void)
{
    do_fcmpd_fcc1();
}

void OPPROTO op_fcmps_fcc2(void)
{
    do_fcmps_fcc2();
}

void OPPROTO op_fcmpd_fcc2(void)
{
    do_fcmpd_fcc2();
}

void OPPROTO op_fcmps_fcc3(void)
{
    do_fcmps_fcc3();
}

void OPPROTO op_fcmpd_fcc3(void)
{
    do_fcmpd_fcc3();
}
#endif

#ifdef USE_INT_TO_FLOAT_HELPERS
void OPPROTO op_fitos(void)
{
    do_fitos();
}

void OPPROTO op_fitod(void)
{
    do_fitod();
}
#else
void OPPROTO op_fitos(void)
{
    FT0 = (float) *((int32_t *)&FT1);
}

void OPPROTO op_fitod(void)
{
    DT0 = (double) *((int32_t *)&FT1);
}

#ifdef TARGET_SPARC64
void OPPROTO op_fxtos(void)
{
    FT0 = (float) *((int64_t *)&DT1);
}

void OPPROTO op_fxtod(void)
{
    DT0 = (double) *((int64_t *)&DT1);
}
#endif
#endif

void OPPROTO op_fdtos(void)
{
    FT0 = (float) DT1;
}

void OPPROTO op_fstod(void)
{
    DT0 = (double) FT1;
}

void OPPROTO op_fstoi(void)
{
    *((int32_t *)&FT0) = (int32_t) FT1;
}

void OPPROTO op_fdtoi(void)
{
    *((int32_t *)&FT0) = (int32_t) DT1;
}

#ifdef TARGET_SPARC64
void OPPROTO op_fstox(void)
{
    *((int64_t *)&DT0) = (int64_t) FT1;
}

void OPPROTO op_fdtox(void)
{
    *((int64_t *)&DT0) = (int64_t) DT1;
}

void OPPROTO op_fmovs_cc(void)
{
    if (T2)
	FT0 = FT1;
}

void OPPROTO op_fmovd_cc(void)
{
    if (T2)
	DT0 = DT1;
}

void OPPROTO op_mov_cc(void)
{
    if (T2)
	T0 = T1;
}

void OPPROTO op_flushw(void)
{
    if (env->cansave != NWINDOWS - 2) {
        raise_exception(TT_SPILL | (env->otherwin != 0 ? 
				    (TT_WOTHER | ((env->wstate & 0x38) >> 1)):
				    ((env->wstate & 0x7) << 2)));
    }
}

void OPPROTO op_saved(void)
{
    env->cansave++;
    if (env->otherwin == 0)
	env->canrestore--;
}

void OPPROTO op_restored(void)
{
    env->canrestore++;
    if (env->cleanwin < NWINDOWS - 1)
	env->cleanwin++;
    if (env->otherwin == 0)
	env->cansave--;
    else
	env->otherwin--;
}

void OPPROTO op_popc(void)
{
    do_popc();
}

void OPPROTO op_done(void)
{
    do_done();
}

void OPPROTO op_retry(void)
{
    do_retry();
}

void OPPROTO op_sir(void)
{
    // XXX

}

void OPPROTO op_ld_asi_reg()
{
    T0 += PARAM1;
    helper_ld_asi(env->asi, PARAM2, PARAM3);
}

void OPPROTO op_st_asi_reg()
{
    T0 += PARAM1;
    helper_st_asi(env->asi, PARAM2, PARAM3);
}
#endif

void OPPROTO op_ld_asi()
{
    helper_ld_asi(PARAM1, PARAM2, PARAM3);
}

void OPPROTO op_st_asi()
{
    helper_st_asi(PARAM1, PARAM2, PARAM3);
}