/*
* 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 "qemu/log.h"
#include "cpu.h"
#include "fpu/softfloat.h"
#include "exec/exec-all.h"
#include "exec/helper-proto.h"
#include "qemu/qemu-print.h"
target_ulong cpu_hppa_get_psw(CPUHPPAState *env)
{
target_ulong psw;
target_ulong mask1 = (target_ulong)-1 / 0xf;
target_ulong maskf = (target_ulong)-1 / 0xffff * 0xf;
/* Fold carry bits down to 8 consecutive bits. */
/* ^^^b^^^c^^^d^^^e^^^f^^^g^^^h^^^i^^^j^^^k^^^l^^^m^^^n^^^o^^^p^^^^ */
psw = (env->psw_cb >> 4) & mask1;
/* .......b...c...d...e...f...g...h...i...j...k...l...m...n...o...p */
psw |= psw >> 3;
/* .......b..bc..cd..de..ef..fg..gh..hi..ij..jk..kl..lm..mn..no..op */
psw |= psw >> 6;
psw &= maskf;
/* .............bcd............efgh............ijkl............mnop */
psw |= psw >> 12;
/* .............bcd.........bcdefgh........efghijkl........ijklmnop */
psw |= env->psw_cb_msb << 39;
/* .............bcd........abcdefgh........efghijkl........ijklmnop */
/* For hppa64, the two 8-bit fields are discontiguous. */
if (hppa_is_pa20(env)) {
psw = (psw & 0xff00000000ull) | ((psw & 0xff) << 8);
} else {
psw = (psw & 0xff) << 8;
}
psw |= env->psw_n * PSW_N;
psw |= (env->psw_v < 0) * PSW_V;
psw |= env->psw | env->psw_xb;
return psw;
}
void cpu_hppa_put_psw(CPUHPPAState *env, target_ulong psw)
{
uint64_t reserved;
target_ulong cb = 0;
/* Do not allow reserved bits to be set. */
if (hppa_is_pa20(env)) {
reserved = MAKE_64BIT_MASK(40, 24) | MAKE_64BIT_MASK(28, 4);
reserved |= PSW_G; /* PA1.x only */
reserved |= PSW_E; /* not implemented */
} else {
reserved = MAKE_64BIT_MASK(32, 32) | MAKE_64BIT_MASK(28, 2);
reserved |= PSW_O | PSW_W; /* PA2.0 only */
reserved |= PSW_E | PSW_Y | PSW_Z; /* not implemented */
}
psw &= ~reserved;
env->psw = psw & (uint32_t)~(PSW_B | PSW_N | PSW_V | PSW_X | PSW_CB);
env->psw_xb = psw & (PSW_X | PSW_B);
env->psw_n = (psw / PSW_N) & 1;
env->psw_v = -((psw / PSW_V) & 1);
env->psw_cb_msb = (psw >> 39) & 1;
cb |= ((psw >> 38) & 1) << 60;
cb |= ((psw >> 37) & 1) << 56;
cb |= ((psw >> 36) & 1) << 52;
cb |= ((psw >> 35) & 1) << 48;
cb |= ((psw >> 34) & 1) << 44;
cb |= ((psw >> 33) & 1) << 40;
cb |= ((psw >> 32) & 1) << 36;
cb |= ((psw >> 15) & 1) << 32;
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;
}
void hppa_cpu_dump_state(CPUState *cs, FILE *f, int flags)
{
#ifndef CONFIG_USER_ONLY
static const char cr_name[32][5] = {
"RC", "CR1", "CR2", "CR3",
"CR4", "CR5", "CR6", "CR7",
"PID1", "PID2", "CCR", "SAR",
"PID3", "PID4", "IVA", "EIEM",
"ITMR", "ISQF", "IOQF", "IIR",
"ISR", "IOR", "IPSW", "EIRR",
"TR0", "TR1", "TR2", "TR3",
"TR4", "TR5", "TR6", "TR7",
};
#endif
CPUHPPAState *env = cpu_env(cs);
target_ulong psw = cpu_hppa_get_psw(env);
target_ulong psw_cb;
char psw_c[20];
int i, w;
uint64_t m;
if (hppa_is_pa20(env)) {
w = 16;
m = UINT64_MAX;
} else {
w = 8;
m = UINT32_MAX;
}
qemu_fprintf(f, "IA_F %08" PRIx64 ":%0*" PRIx64 " (" TARGET_FMT_lx ")\n"
"IA_B %08" PRIx64 ":%0*" PRIx64 " (" TARGET_FMT_lx ")\n",
env->iasq_f >> 32, w, m & env->iaoq_f,
hppa_form_gva_psw(psw, env->iasq_f, env->iaoq_f),
env->iasq_b >> 32, w, m & env->iaoq_b,
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) & 0x1111111111111111ull)
| (env->psw_cb_msb << 60);
qemu_fprintf(f, "PSW %0*" PRIx64 " CB %0*" PRIx64 " %s\n",
w, m & psw, w, m & psw_cb, psw_c);
for (i = 0; i < 32; i++) {
qemu_fprintf(f, "GR%02d %0*" PRIx64 "%c",
i, w, m & env->gr[i],
(i & 3) == 3 ? '\n' : ' ');
}
#ifndef CONFIG_USER_ONLY
for (i = 0; i < 32; i++) {
qemu_fprintf(f, "%-4s %0*" PRIx64 "%c",
cr_name[i], w, m & env->cr[i],
(i & 3) == 3 ? '\n' : ' ');
}
qemu_fprintf(f, "ISQB %0*" PRIx64 " IOQB %0*" PRIx64 "\n",
w, m & env->cr_back[0], w, m & env->cr_back[1]);
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
if (flags & CPU_DUMP_FPU) {
static const char rm[4][4] = { "RN", "RZ", "R+", "R-" };
char flg[6], ena[6];
uint32_t fpsr = env->fr0_shadow;
flg[0] = (fpsr & R_FPSR_FLG_V_MASK ? 'V' : '-');
flg[1] = (fpsr & R_FPSR_FLG_Z_MASK ? 'Z' : '-');
flg[2] = (fpsr & R_FPSR_FLG_O_MASK ? 'O' : '-');
flg[3] = (fpsr & R_FPSR_FLG_U_MASK ? 'U' : '-');
flg[4] = (fpsr & R_FPSR_FLG_I_MASK ? 'I' : '-');
flg[5] = '\0';
ena[0] = (fpsr & R_FPSR_ENA_V_MASK ? 'V' : '-');
ena[1] = (fpsr & R_FPSR_ENA_Z_MASK ? 'Z' : '-');
ena[2] = (fpsr & R_FPSR_ENA_O_MASK ? 'O' : '-');
ena[3] = (fpsr & R_FPSR_ENA_U_MASK ? 'U' : '-');
ena[4] = (fpsr & R_FPSR_ENA_I_MASK ? 'I' : '-');
ena[5] = '\0';
qemu_fprintf(f, "FPSR %08x flag %s enable %s %s\n",
fpsr, flg, ena, rm[FIELD_EX32(fpsr, FPSR, RM)]);
for (i = 0; i < 32; i++) {
qemu_fprintf(f, "FR%02d %016" PRIx64 "%c",
i, env->fr[i], (i & 3) == 3 ? '\n' : ' ');
}
}
qemu_fprintf(f, "\n");
}