1 | /* |
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 |
9 | * version 2 of the License, or (at your option) any later version. |
10 | * |
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" |
21 | |
22 | #include "cpu.h" |
23 | #include "fpu/softfloat.h" |
24 | #include "exec/exec-all.h" |
25 | #include "exec/helper-proto.h" |
26 | #include "qemu/qemu-print.h" |
27 | |
28 | target_ureg cpu_hppa_get_psw(CPUHPPAState *env) |
29 | { |
30 | target_ureg psw; |
31 | |
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; |
43 | psw = (psw & 0xff) << 8; |
44 | |
45 | psw |= env->psw_n * PSW_N; |
46 | psw |= (env->psw_v < 0) * PSW_V; |
47 | psw |= env->psw; |
48 | |
49 | return psw; |
50 | } |
51 | |
52 | void cpu_hppa_put_psw(CPUHPPAState *env, target_ureg psw) |
53 | { |
54 | target_ureg old_psw = env->psw; |
55 | target_ureg cb = 0; |
56 | |
57 | 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); |
60 | 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; |
70 | |
71 | /* If PSW_P changes, it affects how we translate addresses. */ |
72 | if ((psw ^ old_psw) & PSW_P) { |
73 | #ifndef CONFIG_USER_ONLY |
74 | tlb_flush_by_mmuidx(env_cpu(env), 0xf); |
75 | #endif |
76 | } |
77 | } |
78 | |
79 | void hppa_cpu_dump_state(CPUState *cs, FILE *f, int flags) |
80 | { |
81 | HPPACPU *cpu = HPPA_CPU(cs); |
82 | CPUHPPAState *env = &cpu->env; |
83 | target_ureg psw = cpu_hppa_get_psw(env); |
84 | target_ureg psw_cb; |
85 | char psw_c[20]; |
86 | int i; |
87 | |
88 | qemu_fprintf(f, "IA_F " TARGET_FMT_lx " IA_B " TARGET_FMT_lx "\n" , |
89 | hppa_form_gva_psw(psw, env->iasq_f, env->iaoq_f), |
90 | hppa_form_gva_psw(psw, env->iasq_b, env->iaoq_b)); |
91 | |
92 | psw_c[0] = (psw & PSW_W ? 'W' : '-'); |
93 | psw_c[1] = (psw & PSW_E ? 'E' : '-'); |
94 | psw_c[2] = (psw & PSW_S ? 'S' : '-'); |
95 | psw_c[3] = (psw & PSW_T ? 'T' : '-'); |
96 | psw_c[4] = (psw & PSW_H ? 'H' : '-'); |
97 | psw_c[5] = (psw & PSW_L ? 'L' : '-'); |
98 | psw_c[6] = (psw & PSW_N ? 'N' : '-'); |
99 | psw_c[7] = (psw & PSW_X ? 'X' : '-'); |
100 | psw_c[8] = (psw & PSW_B ? 'B' : '-'); |
101 | psw_c[9] = (psw & PSW_C ? 'C' : '-'); |
102 | psw_c[10] = (psw & PSW_V ? 'V' : '-'); |
103 | psw_c[11] = (psw & PSW_M ? 'M' : '-'); |
104 | psw_c[12] = (psw & PSW_F ? 'F' : '-'); |
105 | psw_c[13] = (psw & PSW_R ? 'R' : '-'); |
106 | psw_c[14] = (psw & PSW_Q ? 'Q' : '-'); |
107 | psw_c[15] = (psw & PSW_P ? 'P' : '-'); |
108 | psw_c[16] = (psw & PSW_D ? 'D' : '-'); |
109 | psw_c[17] = (psw & PSW_I ? 'I' : '-'); |
110 | psw_c[18] = '\0'; |
111 | psw_cb = ((env->psw_cb >> 4) & 0x01111111) | (env->psw_cb_msb << 28); |
112 | |
113 | qemu_fprintf(f, "PSW " TREG_FMT_lx " CB " TREG_FMT_lx " %s\n" , |
114 | psw, psw_cb, psw_c); |
115 | |
116 | for (i = 0; i < 32; i++) { |
117 | qemu_fprintf(f, "GR%02d " TREG_FMT_lx "%c" , i, env->gr[i], |
118 | (i & 3) == 3 ? '\n' : ' '); |
119 | } |
120 | #ifndef CONFIG_USER_ONLY |
121 | for (i = 0; i < 8; i++) { |
122 | qemu_fprintf(f, "SR%02d %08x%c" , i, (uint32_t)(env->sr[i] >> 32), |
123 | (i & 3) == 3 ? '\n' : ' '); |
124 | } |
125 | #endif |
126 | qemu_fprintf(f, "\n" ); |
127 | |
128 | /* ??? FR */ |
129 | } |
130 | |