2 * HPPA emulation cpu helpers for qemu.
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.
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.
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/>.
20 #include "qemu/osdep.h"
23 #include "exec/exec-all.h"
24 #include "fpu/softfloat.h"
25 #include "exec/helper-proto.h"
27 target_ureg cpu_hppa_get_psw(CPUHPPAState *env)
31 /* Fold carry bits down to 8 consecutive bits. */
32 /* ??? Needs tweaking for hppa64. */
33 /* .......b...c...d...e...f...g...h */
34 psw = (env->psw_cb >> 4) & 0x01111111;
35 /* .......b..bc..cd..de..ef..fg..gh */
37 /* .............bcd............efgh */
38 psw |= (psw >> 6) & 0x000f000f;
39 /* .........................bcdefgh */
40 psw |= (psw >> 12) & 0xf;
41 psw |= env->psw_cb_msb << 7;
42 psw = (psw & 0xff) << 8;
44 psw |= env->psw_n * PSW_N;
45 psw |= (env->psw_v < 0) * PSW_V;
51 void cpu_hppa_put_psw(CPUHPPAState *env, target_ureg psw)
55 env->psw = psw & ~(PSW_N | PSW_V | PSW_CB);
56 env->psw_n = (psw / PSW_N) & 1;
57 env->psw_v = -((psw / PSW_V) & 1);
58 env->psw_cb_msb = (psw >> 15) & 1;
60 cb |= ((psw >> 14) & 1) << 28;
61 cb |= ((psw >> 13) & 1) << 24;
62 cb |= ((psw >> 12) & 1) << 20;
63 cb |= ((psw >> 11) & 1) << 16;
64 cb |= ((psw >> 10) & 1) << 12;
65 cb |= ((psw >> 9) & 1) << 8;
66 cb |= ((psw >> 8) & 1) << 4;
70 void hppa_cpu_do_interrupt(CPUState *cs)
72 HPPACPU *cpu = HPPA_CPU(cs);
73 CPUHPPAState *env = &cpu->env;
74 int i = cs->exception_index;
76 if (qemu_loglevel_mask(CPU_LOG_INT)) {
77 static const char * const names[] = {
78 [EXCP_HPMC] = "high priority machine check",
79 [EXCP_POWER_FAIL] = "power fail interrupt",
80 [EXCP_RC] = "recovery counter trap",
81 [EXCP_EXT_INTERRUPT] = "external interrupt",
82 [EXCP_LPMC] = "low priority machine check",
83 [EXCP_ITLB_MISS] = "instruction tlb miss fault",
84 [EXCP_IMP] = "instruction memory protection trap",
85 [EXCP_ILL] = "illegal instruction trap",
86 [EXCP_BREAK] = "break instruction trap",
87 [EXCP_PRIV_OPR] = "privileged operation trap",
88 [EXCP_PRIV_REG] = "privileged register trap",
89 [EXCP_OVERFLOW] = "overflow trap",
90 [EXCP_COND] = "conditional trap",
91 [EXCP_ASSIST] = "assist exception trap",
92 [EXCP_DTLB_MISS] = "data tlb miss fault",
93 [EXCP_NA_ITLB_MISS] = "non-access instruction tlb miss",
94 [EXCP_NA_DTLB_MISS] = "non-access data tlb miss",
95 [EXCP_DMP] = "data memory protection trap",
96 [EXCP_DMB] = "data memory break trap",
97 [EXCP_TLB_DIRTY] = "tlb dirty bit trap",
98 [EXCP_PAGE_REF] = "page reference trap",
99 [EXCP_ASSIST_EMU] = "assist emulation trap",
100 [EXCP_HPT] = "high-privilege transfer trap",
101 [EXCP_LPT] = "low-privilege transfer trap",
102 [EXCP_TB] = "taken branch trap",
103 [EXCP_DMAR] = "data memory access rights trap",
104 [EXCP_DMPI] = "data memory protection id trap",
105 [EXCP_UNALIGN] = "unaligned data reference trap",
106 [EXCP_PER_INTERRUPT] = "performance monitor interrupt",
107 [EXCP_SYSCALL] = "syscall",
108 [EXCP_SYSCALL_LWS] = "syscall-lws",
111 const char *name = NULL;
113 if (i >= 0 && i < ARRAY_SIZE(names)) {
117 qemu_log("INT %6d: %s ia_f=" TARGET_FMT_lx "\n",
118 ++count, name, env->iaoq_f);
120 qemu_log("INT %6d: unknown %d ia_f=" TARGET_FMT_lx "\n",
121 ++count, i, env->iaoq_f);
124 cs->exception_index = -1;
127 bool hppa_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
133 void hppa_cpu_dump_state(CPUState *cs, FILE *f,
134 fprintf_function cpu_fprintf, int flags)
136 HPPACPU *cpu = HPPA_CPU(cs);
137 CPUHPPAState *env = &cpu->env;
138 target_ureg psw = cpu_hppa_get_psw(env);
143 cpu_fprintf(f, "IA_F " TARGET_FMT_lx " IA_B " TARGET_FMT_lx "\n",
144 (target_ulong)env->iaoq_f, (target_ulong)env->iaoq_b);
146 psw_c[0] = (psw & PSW_W ? 'W' : '-');
147 psw_c[1] = (psw & PSW_E ? 'E' : '-');
148 psw_c[2] = (psw & PSW_S ? 'S' : '-');
149 psw_c[3] = (psw & PSW_T ? 'T' : '-');
150 psw_c[4] = (psw & PSW_H ? 'H' : '-');
151 psw_c[5] = (psw & PSW_L ? 'L' : '-');
152 psw_c[6] = (psw & PSW_N ? 'N' : '-');
153 psw_c[7] = (psw & PSW_X ? 'X' : '-');
154 psw_c[8] = (psw & PSW_B ? 'B' : '-');
155 psw_c[9] = (psw & PSW_C ? 'C' : '-');
156 psw_c[10] = (psw & PSW_V ? 'V' : '-');
157 psw_c[11] = (psw & PSW_M ? 'M' : '-');
158 psw_c[12] = (psw & PSW_F ? 'F' : '-');
159 psw_c[13] = (psw & PSW_R ? 'R' : '-');
160 psw_c[14] = (psw & PSW_Q ? 'Q' : '-');
161 psw_c[15] = (psw & PSW_P ? 'P' : '-');
162 psw_c[16] = (psw & PSW_D ? 'D' : '-');
163 psw_c[17] = (psw & PSW_I ? 'I' : '-');
165 psw_cb = ((env->psw_cb >> 4) & 0x01111111) | (env->psw_cb_msb << 28);
167 cpu_fprintf(f, "PSW " TREG_FMT_lx " CB " TREG_FMT_lx " %s\n",
170 for (i = 0; i < 32; i++) {
171 cpu_fprintf(f, "GR%02d " TREG_FMT_lx " ", i, env->gr[i]);
173 cpu_fprintf(f, "\n");
176 cpu_fprintf(f, "\n");