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 2.1 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 #include "qemu/log.h" 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), HPPA_MMU_FLUSH_MASK); 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 89 " IIR " TREG_FMT_lx "\n", 90 hppa_form_gva_psw(psw, env->iasq_f, env->iaoq_f), 91 hppa_form_gva_psw(psw, env->iasq_b, env->iaoq_b), 92 env->cr[CR_IIR]); 93 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); 114 115 qemu_fprintf(f, "PSW " TREG_FMT_lx " CB " TREG_FMT_lx " %s\n", 116 psw, psw_cb, psw_c); 117 118 for (i = 0; i < 32; i++) { 119 qemu_fprintf(f, "GR%02d " TREG_FMT_lx "%c", i, env->gr[i], 120 (i & 3) == 3 ? '\n' : ' '); 121 } 122 #ifndef CONFIG_USER_ONLY 123 for (i = 0; i < 8; i++) { 124 qemu_fprintf(f, "SR%02d %08x%c", i, (uint32_t)(env->sr[i] >> 32), 125 (i & 3) == 3 ? '\n' : ' '); 126 } 127 #endif 128 qemu_fprintf(f, "\n"); 129 130 /* ??? FR */ 131 } 132