blob: a8d3f456eee58174939e059cd4a6f1fc141ecb6c [file] [log] [blame]
Richard Henderson61766fe2016-12-15 11:26:14 -08001/*
2 * HPPA emulation cpu helpers for qemu.
3 *
4 * Copyright (c) 2016 Richard Henderson <rth@twiddle.net>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
Chetan Pantd6ea4232020-10-23 12:33:53 +00009 * version 2.1 of the License, or (at your option) any later version.
Richard Henderson61766fe2016-12-15 11:26:14 -080010 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include "qemu/osdep.h"
Philippe Mathieu-Daudécd617482022-02-07 09:27:56 +010021#include "qemu/log.h"
Richard Henderson61766fe2016-12-15 11:26:14 -080022#include "cpu.h"
Richard Henderson61766fe2016-12-15 11:26:14 -080023#include "fpu/softfloat.h"
Sven Schnelled5de20b2019-03-11 20:16:00 +010024#include "exec/exec-all.h"
Richard Henderson61766fe2016-12-15 11:26:14 -080025#include "exec/helper-proto.h"
Markus Armbruster90c84c52019-04-17 21:18:02 +020026#include "qemu/qemu-print.h"
Richard Henderson61766fe2016-12-15 11:26:14 -080027
Richard Hendersoneaa37832017-10-09 12:35:48 -070028target_ureg cpu_hppa_get_psw(CPUHPPAState *env)
Richard Henderson61766fe2016-12-15 11:26:14 -080029{
Richard Hendersoneaa37832017-10-09 12:35:48 -070030 target_ureg psw;
Richard Henderson61766fe2016-12-15 11:26:14 -080031
32 /* Fold carry bits down to 8 consecutive bits. */
33 /* ??? Needs tweaking for hppa64. */
34 /* .......b...c...d...e...f...g...h */
35 psw = (env->psw_cb >> 4) & 0x01111111;
36 /* .......b..bc..cd..de..ef..fg..gh */
37 psw |= psw >> 3;
38 /* .............bcd............efgh */
39 psw |= (psw >> 6) & 0x000f000f;
40 /* .........................bcdefgh */
41 psw |= (psw >> 12) & 0xf;
42 psw |= env->psw_cb_msb << 7;
Richard Hendersonfa57e322017-10-08 19:00:40 -040043 psw = (psw & 0xff) << 8;
Richard Henderson61766fe2016-12-15 11:26:14 -080044
Richard Hendersonfa57e322017-10-08 19:00:40 -040045 psw |= env->psw_n * PSW_N;
46 psw |= (env->psw_v < 0) * PSW_V;
47 psw |= env->psw;
Richard Henderson61766fe2016-12-15 11:26:14 -080048
49 return psw;
50}
51
Richard Hendersoneaa37832017-10-09 12:35:48 -070052void cpu_hppa_put_psw(CPUHPPAState *env, target_ureg psw)
Richard Henderson61766fe2016-12-15 11:26:14 -080053{
Sven Schnelled5de20b2019-03-11 20:16:00 +010054 target_ureg old_psw = env->psw;
Richard Hendersoneaa37832017-10-09 12:35:48 -070055 target_ureg cb = 0;
Richard Henderson61766fe2016-12-15 11:26:14 -080056
Richard Hendersonfa57e322017-10-08 19:00:40 -040057 env->psw = psw & ~(PSW_N | PSW_V | PSW_CB);
58 env->psw_n = (psw / PSW_N) & 1;
59 env->psw_v = -((psw / PSW_V) & 1);
Richard Henderson61766fe2016-12-15 11:26:14 -080060 env->psw_cb_msb = (psw >> 15) & 1;
61
62 cb |= ((psw >> 14) & 1) << 28;
63 cb |= ((psw >> 13) & 1) << 24;
64 cb |= ((psw >> 12) & 1) << 20;
65 cb |= ((psw >> 11) & 1) << 16;
66 cb |= ((psw >> 10) & 1) << 12;
67 cb |= ((psw >> 9) & 1) << 8;
68 cb |= ((psw >> 8) & 1) << 4;
69 env->psw_cb = cb;
Sven Schnelled5de20b2019-03-11 20:16:00 +010070
71 /* If PSW_P changes, it affects how we translate addresses. */
72 if ((psw ^ old_psw) & PSW_P) {
73#ifndef CONFIG_USER_ONLY
Helge Deller88b7ad12023-08-07 11:42:11 +020074 tlb_flush_by_mmuidx(env_cpu(env), HPPA_MMU_FLUSH_MASK);
Sven Schnelled5de20b2019-03-11 20:16:00 +010075#endif
76 }
Richard Henderson61766fe2016-12-15 11:26:14 -080077}
78
Markus Armbruster90c84c52019-04-17 21:18:02 +020079void hppa_cpu_dump_state(CPUState *cs, FILE *f, int flags)
Richard Henderson61766fe2016-12-15 11:26:14 -080080{
81 HPPACPU *cpu = HPPA_CPU(cs);
82 CPUHPPAState *env = &cpu->env;
Richard Hendersoneaa37832017-10-09 12:35:48 -070083 target_ureg psw = cpu_hppa_get_psw(env);
84 target_ureg psw_cb;
Richard Hendersonfa57e322017-10-08 19:00:40 -040085 char psw_c[20];
Richard Henderson61766fe2016-12-15 11:26:14 -080086 int i;
87
Helge Deller770525f2022-09-18 21:45:49 +020088 qemu_fprintf(f, "IA_F " TARGET_FMT_lx " IA_B " TARGET_FMT_lx
89 " IIR " TREG_FMT_lx "\n",
Markus Armbruster90c84c52019-04-17 21:18:02 +020090 hppa_form_gva_psw(psw, env->iasq_f, env->iaoq_f),
Helge Deller770525f2022-09-18 21:45:49 +020091 hppa_form_gva_psw(psw, env->iasq_b, env->iaoq_b),
92 env->cr[CR_IIR]);
Richard Hendersonfa57e322017-10-08 19:00:40 -040093
94 psw_c[0] = (psw & PSW_W ? 'W' : '-');
95 psw_c[1] = (psw & PSW_E ? 'E' : '-');
96 psw_c[2] = (psw & PSW_S ? 'S' : '-');
97 psw_c[3] = (psw & PSW_T ? 'T' : '-');
98 psw_c[4] = (psw & PSW_H ? 'H' : '-');
99 psw_c[5] = (psw & PSW_L ? 'L' : '-');
100 psw_c[6] = (psw & PSW_N ? 'N' : '-');
101 psw_c[7] = (psw & PSW_X ? 'X' : '-');
102 psw_c[8] = (psw & PSW_B ? 'B' : '-');
103 psw_c[9] = (psw & PSW_C ? 'C' : '-');
104 psw_c[10] = (psw & PSW_V ? 'V' : '-');
105 psw_c[11] = (psw & PSW_M ? 'M' : '-');
106 psw_c[12] = (psw & PSW_F ? 'F' : '-');
107 psw_c[13] = (psw & PSW_R ? 'R' : '-');
108 psw_c[14] = (psw & PSW_Q ? 'Q' : '-');
109 psw_c[15] = (psw & PSW_P ? 'P' : '-');
110 psw_c[16] = (psw & PSW_D ? 'D' : '-');
111 psw_c[17] = (psw & PSW_I ? 'I' : '-');
112 psw_c[18] = '\0';
113 psw_cb = ((env->psw_cb >> 4) & 0x01111111) | (env->psw_cb_msb << 28);
114
Markus Armbruster90c84c52019-04-17 21:18:02 +0200115 qemu_fprintf(f, "PSW " TREG_FMT_lx " CB " TREG_FMT_lx " %s\n",
116 psw, psw_cb, psw_c);
Richard Hendersonfa57e322017-10-08 19:00:40 -0400117
118 for (i = 0; i < 32; i++) {
Markus Armbruster90c84c52019-04-17 21:18:02 +0200119 qemu_fprintf(f, "GR%02d " TREG_FMT_lx "%c", i, env->gr[i],
120 (i & 3) == 3 ? '\n' : ' ');
Richard Henderson61766fe2016-12-15 11:26:14 -0800121 }
Richard Henderson33423472017-10-09 22:54:12 -0700122#ifndef CONFIG_USER_ONLY
123 for (i = 0; i < 8; i++) {
Markus Armbruster90c84c52019-04-17 21:18:02 +0200124 qemu_fprintf(f, "SR%02d %08x%c", i, (uint32_t)(env->sr[i] >> 32),
125 (i & 3) == 3 ? '\n' : ' ');
Richard Henderson33423472017-10-09 22:54:12 -0700126 }
127#endif
Markus Armbruster90c84c52019-04-17 21:18:02 +0200128 qemu_fprintf(f, "\n");
Richard Henderson61766fe2016-12-15 11:26:14 -0800129
130 /* ??? FR */
131}