diff options
Diffstat (limited to 'qemu/target-sparc/win_helper.c')
| -rw-r--r-- | qemu/target-sparc/win_helper.c | 399 |
1 files changed, 0 insertions, 399 deletions
diff --git a/qemu/target-sparc/win_helper.c b/qemu/target-sparc/win_helper.c deleted file mode 100644 index a8a6c0cfc..000000000 --- a/qemu/target-sparc/win_helper.c +++ /dev/null @@ -1,399 +0,0 @@ -/* - * Helpers for CWP and PSTATE handling - * - * Copyright (c) 2003-2005 Fabrice Bellard - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "cpu.h" -#include "exec/helper-proto.h" -#include "trace.h" - -static inline void memcpy32(target_ulong *dst, const target_ulong *src) -{ - dst[0] = src[0]; - dst[1] = src[1]; - dst[2] = src[2]; - dst[3] = src[3]; - dst[4] = src[4]; - dst[5] = src[5]; - dst[6] = src[6]; - dst[7] = src[7]; -} - -void cpu_set_cwp(CPUSPARCState *env, int new_cwp) -{ - /* put the modified wrap registers at their proper location */ - if (env->cwp == env->nwindows - 1) { - memcpy32(env->regbase, env->regbase + env->nwindows * 16); - } - env->cwp = new_cwp; - - /* put the wrap registers at their temporary location */ - if (new_cwp == env->nwindows - 1) { - memcpy32(env->regbase + env->nwindows * 16, env->regbase); - } - env->regwptr = env->regbase + (new_cwp * 16); -} - -target_ulong cpu_get_psr(CPUSPARCState *env) -{ - helper_compute_psr(env); - -#if !defined(TARGET_SPARC64) - return env->version | (env->psr & PSR_ICC) | - (env->psref ? PSR_EF : 0) | - (env->psrpil << 8) | - (env->psrs ? PSR_S : 0) | - (env->psrps ? PSR_PS : 0) | - (env->psret ? PSR_ET : 0) | env->cwp; -#else - return env->psr & PSR_ICC; -#endif -} - -void cpu_put_psr_raw(CPUSPARCState *env, target_ulong val) -{ - env->psr = val & PSR_ICC; -#if !defined(TARGET_SPARC64) - env->psref = (val & PSR_EF) ? 1 : 0; - env->psrpil = (val & PSR_PIL) >> 8; - env->psrs = (val & PSR_S) ? 1 : 0; - env->psrps = (val & PSR_PS) ? 1 : 0; - env->psret = (val & PSR_ET) ? 1 : 0; -#endif - env->cc_op = CC_OP_FLAGS; -#if !defined(TARGET_SPARC64) - cpu_set_cwp(env, val & PSR_CWP); -#endif -} - -void cpu_put_psr(CPUSPARCState *env, target_ulong val) -{ - cpu_put_psr_raw(env, val); -#if ((!defined(TARGET_SPARC64)) && !defined(CONFIG_USER_ONLY)) - cpu_check_irqs(env); -#endif -} - -int cpu_cwp_inc(CPUSPARCState *env, int cwp) -{ - if (unlikely(cwp >= env->nwindows)) { - cwp -= env->nwindows; - } - return cwp; -} - -int cpu_cwp_dec(CPUSPARCState *env, int cwp) -{ - if (unlikely(cwp < 0)) { - cwp += env->nwindows; - } - return cwp; -} - -#ifndef TARGET_SPARC64 -void helper_rett(CPUSPARCState *env) -{ - unsigned int cwp; - - if (env->psret == 1) { - helper_raise_exception(env, TT_ILL_INSN); - } - - env->psret = 1; - cwp = cpu_cwp_inc(env, env->cwp + 1) ; - if (env->wim & (1 << cwp)) { - helper_raise_exception(env, TT_WIN_UNF); - } - cpu_set_cwp(env, cwp); - env->psrs = env->psrps; -} - -/* XXX: use another pointer for %iN registers to avoid slow wrapping - handling ? */ -void helper_save(CPUSPARCState *env) -{ - uint32_t cwp; - - cwp = cpu_cwp_dec(env, env->cwp - 1); - if (env->wim & (1 << cwp)) { - helper_raise_exception(env, TT_WIN_OVF); - } - cpu_set_cwp(env, cwp); -} - -void helper_restore(CPUSPARCState *env) -{ - uint32_t cwp; - - cwp = cpu_cwp_inc(env, env->cwp + 1); - if (env->wim & (1 << cwp)) { - helper_raise_exception(env, TT_WIN_UNF); - } - cpu_set_cwp(env, cwp); -} - -void helper_wrpsr(CPUSPARCState *env, target_ulong new_psr) -{ - if ((new_psr & PSR_CWP) >= env->nwindows) { - helper_raise_exception(env, TT_ILL_INSN); - } else { - cpu_put_psr(env, new_psr); - } -} - -target_ulong helper_rdpsr(CPUSPARCState *env) -{ - return cpu_get_psr(env); -} - -#else -/* XXX: use another pointer for %iN registers to avoid slow wrapping - handling ? */ -void helper_save(CPUSPARCState *env) -{ - uint32_t cwp; - - cwp = cpu_cwp_dec(env, env->cwp - 1); - if (env->cansave == 0) { - helper_raise_exception(env, 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 */ - helper_raise_exception(env, TT_CLRWIN); - } else { - env->cansave--; - env->canrestore++; - cpu_set_cwp(env, cwp); - } - } -} - -void helper_restore(CPUSPARCState *env) -{ - uint32_t cwp; - - cwp = cpu_cwp_inc(env, env->cwp + 1); - if (env->canrestore == 0) { - helper_raise_exception(env, TT_FILL | (env->otherwin != 0 ? - (TT_WOTHER | - ((env->wstate & 0x38) >> 1)) : - ((env->wstate & 0x7) << 2))); - } else { - env->cansave++; - env->canrestore--; - cpu_set_cwp(env, cwp); - } -} - -void helper_flushw(CPUSPARCState *env) -{ - if (env->cansave != env->nwindows - 2) { - helper_raise_exception(env, TT_SPILL | (env->otherwin != 0 ? - (TT_WOTHER | - ((env->wstate & 0x38) >> 1)) : - ((env->wstate & 0x7) << 2))); - } -} - -void helper_saved(CPUSPARCState *env) -{ - env->cansave++; - if (env->otherwin == 0) { - env->canrestore--; - } else { - env->otherwin--; - } -} - -void helper_restored(CPUSPARCState *env) -{ - env->canrestore++; - if (env->cleanwin < env->nwindows - 1) { - env->cleanwin++; - } - if (env->otherwin == 0) { - env->cansave--; - } else { - env->otherwin--; - } -} - -target_ulong cpu_get_ccr(CPUSPARCState *env) -{ - target_ulong psr; - - psr = cpu_get_psr(env); - - return ((env->xcc >> 20) << 4) | ((psr & PSR_ICC) >> 20); -} - -void cpu_put_ccr(CPUSPARCState *env, target_ulong val) -{ - env->xcc = (val >> 4) << 20; - env->psr = (val & 0xf) << 20; - CC_OP = CC_OP_FLAGS; -} - -target_ulong cpu_get_cwp64(CPUSPARCState *env) -{ - return env->nwindows - 1 - env->cwp; -} - -void cpu_put_cwp64(CPUSPARCState *env, int cwp) -{ - if (unlikely(cwp >= env->nwindows || cwp < 0)) { - cwp %= env->nwindows; - } - cpu_set_cwp(env, env->nwindows - 1 - cwp); -} - -target_ulong helper_rdccr(CPUSPARCState *env) -{ - return cpu_get_ccr(env); -} - -void helper_wrccr(CPUSPARCState *env, target_ulong new_ccr) -{ - cpu_put_ccr(env, new_ccr); -} - -/* CWP handling is reversed in V9, but we still use the V8 register - order. */ -target_ulong helper_rdcwp(CPUSPARCState *env) -{ - return cpu_get_cwp64(env); -} - -void helper_wrcwp(CPUSPARCState *env, target_ulong new_cwp) -{ - cpu_put_cwp64(env, new_cwp); -} - -static inline uint64_t *get_gregset(CPUSPARCState *env, uint32_t pstate) -{ - switch (pstate) { - default: - trace_win_helper_gregset_error(pstate); - /* pass through to normal set of global registers */ - case 0: - return env->bgregs; - case PS_AG: - return env->agregs; - case PS_MG: - return env->mgregs; - case PS_IG: - return env->igregs; - } -} - -void cpu_change_pstate(CPUSPARCState *env, uint32_t new_pstate) -{ - uint32_t pstate_regs, new_pstate_regs; - uint64_t *src, *dst; - - if (env->def->features & CPU_FEATURE_GL) { - /* PS_AG is not implemented in this case */ - new_pstate &= ~PS_AG; - } - - pstate_regs = env->pstate & 0xc01; - new_pstate_regs = new_pstate & 0xc01; - - if (new_pstate_regs != pstate_regs) { - trace_win_helper_switch_pstate(pstate_regs, new_pstate_regs); - - /* Switch global register bank */ - src = get_gregset(env, new_pstate_regs); - dst = get_gregset(env, pstate_regs); - memcpy32(dst, env->gregs); - memcpy32(env->gregs, src); - } else { - trace_win_helper_no_switch_pstate(new_pstate_regs); - } - env->pstate = new_pstate; -} - -void helper_wrpstate(CPUSPARCState *env, target_ulong new_state) -{ - cpu_change_pstate(env, new_state & 0xf3f); - -#if !defined(CONFIG_USER_ONLY) - if (cpu_interrupts_enabled(env)) { - cpu_check_irqs(env); - } -#endif -} - -void helper_wrpil(CPUSPARCState *env, target_ulong new_pil) -{ -#if !defined(CONFIG_USER_ONLY) - trace_win_helper_wrpil(env->psrpil, (uint32_t)new_pil); - - env->psrpil = new_pil; - - if (cpu_interrupts_enabled(env)) { - cpu_check_irqs(env); - } -#endif -} - -void helper_done(CPUSPARCState *env) -{ - trap_state *tsptr = cpu_tsptr(env); - - env->pc = tsptr->tnpc; - env->npc = tsptr->tnpc + 4; - cpu_put_ccr(env, tsptr->tstate >> 32); - env->asi = (tsptr->tstate >> 24) & 0xff; - cpu_change_pstate(env, (tsptr->tstate >> 8) & 0xf3f); - cpu_put_cwp64(env, tsptr->tstate & 0xff); - env->tl--; - - trace_win_helper_done(env->tl); - -#if !defined(CONFIG_USER_ONLY) - if (cpu_interrupts_enabled(env)) { - cpu_check_irqs(env); - } -#endif -} - -void helper_retry(CPUSPARCState *env) -{ - trap_state *tsptr = cpu_tsptr(env); - - env->pc = tsptr->tpc; - env->npc = tsptr->tnpc; - cpu_put_ccr(env, tsptr->tstate >> 32); - env->asi = (tsptr->tstate >> 24) & 0xff; - cpu_change_pstate(env, (tsptr->tstate >> 8) & 0xf3f); - cpu_put_cwp64(env, tsptr->tstate & 0xff); - env->tl--; - - trace_win_helper_retry(env->tl); - -#if !defined(CONFIG_USER_ONLY) - if (cpu_interrupts_enabled(env)) { - cpu_check_irqs(env); - } -#endif -} -#endif |