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813dff13bf
With the addition of default-configs/hppa-softmmu.mak, this will compile. It is not enabled with this patch, however. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/*
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* HPPA emulation cpu helpers for qemu.
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*
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* Copyright (c) 2016 Richard Henderson <rth@twiddle.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "exec/exec-all.h"
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#include "fpu/softfloat.h"
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#include "exec/helper-proto.h"
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target_ulong cpu_hppa_get_psw(CPUHPPAState *env)
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{
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target_ulong psw;
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/* Fold carry bits down to 8 consecutive bits. */
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/* ??? Needs tweaking for hppa64. */
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/* .......b...c...d...e...f...g...h */
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psw = (env->psw_cb >> 4) & 0x01111111;
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/* .......b..bc..cd..de..ef..fg..gh */
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psw |= psw >> 3;
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/* .............bcd............efgh */
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psw |= (psw >> 6) & 0x000f000f;
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/* .........................bcdefgh */
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psw |= (psw >> 12) & 0xf;
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psw |= env->psw_cb_msb << 7;
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psw <<= 8;
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psw |= env->psw_n << 21;
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psw |= (env->psw_v < 0) << 17;
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return psw;
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}
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void cpu_hppa_put_psw(CPUHPPAState *env, target_ulong psw)
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{
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target_ulong cb = 0;
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env->psw_n = (psw >> 21) & 1;
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env->psw_v = -((psw >> 17) & 1);
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env->psw_cb_msb = (psw >> 15) & 1;
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cb |= ((psw >> 14) & 1) << 28;
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cb |= ((psw >> 13) & 1) << 24;
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cb |= ((psw >> 12) & 1) << 20;
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cb |= ((psw >> 11) & 1) << 16;
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cb |= ((psw >> 10) & 1) << 12;
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cb |= ((psw >> 9) & 1) << 8;
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cb |= ((psw >> 8) & 1) << 4;
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env->psw_cb = cb;
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}
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void hppa_cpu_do_interrupt(CPUState *cs)
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{
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HPPACPU *cpu = HPPA_CPU(cs);
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CPUHPPAState *env = &cpu->env;
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int i = cs->exception_index;
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if (qemu_loglevel_mask(CPU_LOG_INT)) {
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static int count;
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const char *name = "<unknown>";
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switch (i) {
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case EXCP_SYSCALL:
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name = "syscall";
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break;
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case EXCP_SIGSEGV:
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name = "sigsegv";
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break;
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case EXCP_SIGILL:
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name = "sigill";
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break;
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case EXCP_SIGFPE:
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name = "sigfpe";
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break;
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}
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qemu_log("INT %6d: %s ia_f=" TARGET_FMT_lx "\n",
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++count, name, env->iaoq_f);
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}
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cs->exception_index = -1;
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}
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bool hppa_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
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{
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abort();
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return false;
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}
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void hppa_cpu_dump_state(CPUState *cs, FILE *f,
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fprintf_function cpu_fprintf, int flags)
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{
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HPPACPU *cpu = HPPA_CPU(cs);
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CPUHPPAState *env = &cpu->env;
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int i;
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cpu_fprintf(f, "IA_F " TARGET_FMT_lx
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" IA_B " TARGET_FMT_lx
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" PSW " TARGET_FMT_lx
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" [N:" TARGET_FMT_ld " V:%d"
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" CB:" TARGET_FMT_lx "]\n ",
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env->iaoq_f, env->iaoq_b, cpu_hppa_get_psw(env),
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env->psw_n, env->psw_v < 0,
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((env->psw_cb >> 4) & 0x01111111) | (env->psw_cb_msb << 28));
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for (i = 1; i < 32; i++) {
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cpu_fprintf(f, "GR%02d " TARGET_FMT_lx " ", i, env->gr[i]);
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if ((i % 4) == 3) {
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cpu_fprintf(f, "\n");
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}
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}
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/* ??? FR */
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}
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