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/*
* HPPA emulation cpu helpers for qemu.
*
* Copyright (c) 2016 Richard Henderson <rth@twiddle.net>
*
* 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 2.1 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 "fpu/softfloat.h"
#include "exec/exec-all.h"
#include "exec/helper-proto.h"
#include "qemu/qemu-print.h"
target_ureg cpu_hppa_get_psw(CPUHPPAState *env)
{
target_ureg psw;
/* Fold carry bits down to 8 consecutive bits. */
/* ??? Needs tweaking for hppa64. */
/* .......b...c...d...e...f...g...h */
psw = (env->psw_cb >> 4) & 0x01111111;
/* .......b..bc..cd..de..ef..fg..gh */
psw |= psw >> 3;
/* .............bcd............efgh */
psw |= (psw >> 6) & 0x000f000f;
/* .........................bcdefgh */
psw |= (psw >> 12) & 0xf;
psw |= env->psw_cb_msb << 7;
psw = (psw & 0xff) << 8;
psw |= env->psw_n * PSW_N;
psw |= (env->psw_v < 0) * PSW_V;
psw |= env->psw;
return psw;
}
void cpu_hppa_put_psw(CPUHPPAState *env, target_ureg psw)
{
target_ureg old_psw = env->psw;
target_ureg cb = 0;
env->psw = psw & ~(PSW_N | PSW_V | PSW_CB);
env->psw_n = (psw / PSW_N) & 1;
env->psw_v = -((psw / PSW_V) & 1);
env->psw_cb_msb = (psw >> 15) & 1;
cb |= ((psw >> 14) & 1) << 28;
cb |= ((psw >> 13) & 1) << 24;
cb |= ((psw >> 12) & 1) << 20;
cb |= ((psw >> 11) & 1) << 16;
cb |= ((psw >> 10) & 1) << 12;
cb |= ((psw >> 9) & 1) << 8;
cb |= ((psw >> 8) & 1) << 4;
env->psw_cb = cb;
/* If PSW_P changes, it affects how we translate addresses. */
if ((psw ^ old_psw) & PSW_P) {
#ifndef CONFIG_USER_ONLY
tlb_flush_by_mmuidx(env_cpu(env), 0xf);
#endif
}
}
void hppa_cpu_dump_state(CPUState *cs, FILE *f, int flags)
{
HPPACPU *cpu = HPPA_CPU(cs);
CPUHPPAState *env = &cpu->env;
target_ureg psw = cpu_hppa_get_psw(env);
target_ureg psw_cb;
char psw_c[20];
int i;
qemu_fprintf(f, "IA_F " TARGET_FMT_lx " IA_B " TARGET_FMT_lx "\n",
hppa_form_gva_psw(psw, env->iasq_f, env->iaoq_f),
hppa_form_gva_psw(psw, env->iasq_b, env->iaoq_b));
psw_c[0] = (psw & PSW_W ? 'W' : '-');
psw_c[1] = (psw & PSW_E ? 'E' : '-');
psw_c[2] = (psw & PSW_S ? 'S' : '-');
psw_c[3] = (psw & PSW_T ? 'T' : '-');
psw_c[4] = (psw & PSW_H ? 'H' : '-');
psw_c[5] = (psw & PSW_L ? 'L' : '-');
psw_c[6] = (psw & PSW_N ? 'N' : '-');
psw_c[7] = (psw & PSW_X ? 'X' : '-');
psw_c[8] = (psw & PSW_B ? 'B' : '-');
psw_c[9] = (psw & PSW_C ? 'C' : '-');
psw_c[10] = (psw & PSW_V ? 'V' : '-');
psw_c[11] = (psw & PSW_M ? 'M' : '-');
psw_c[12] = (psw & PSW_F ? 'F' : '-');
psw_c[13] = (psw & PSW_R ? 'R' : '-');
psw_c[14] = (psw & PSW_Q ? 'Q' : '-');
psw_c[15] = (psw & PSW_P ? 'P' : '-');
psw_c[16] = (psw & PSW_D ? 'D' : '-');
psw_c[17] = (psw & PSW_I ? 'I' : '-');
psw_c[18] = '\0';
psw_cb = ((env->psw_cb >> 4) & 0x01111111) | (env->psw_cb_msb << 28);
qemu_fprintf(f, "PSW " TREG_FMT_lx " CB " TREG_FMT_lx " %s\n",
psw, psw_cb, psw_c);
for (i = 0; i < 32; i++) {
qemu_fprintf(f, "GR%02d " TREG_FMT_lx "%c", i, env->gr[i],
(i & 3) == 3 ? '\n' : ' ');
}
#ifndef CONFIG_USER_ONLY
for (i = 0; i < 8; i++) {
qemu_fprintf(f, "SR%02d %08x%c", i, (uint32_t)(env->sr[i] >> 32),
(i & 3) == 3 ? '\n' : ' ');
}
#endif
qemu_fprintf(f, "\n");
/* ??? FR */
}
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