2 * Copyright (C) 2010-2012 Guan Xuetao
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 * Contributions from 2012-04-01 on are considered under GPL version 2,
9 * or (at your option) any later version.
13 #include "exec/gdbstub.h"
15 #include "qemu/host-utils.h"
16 #ifndef CONFIG_USER_ONLY
17 #include "ui/console.h"
23 #define DPRINTF(fmt, ...) printf("%s: " fmt , __func__, ## __VA_ARGS__)
25 #define DPRINTF(fmt, ...) do {} while (0)
28 CPUUniCore32State *uc32_cpu_init(const char *cpu_model)
31 CPUUniCore32State *env;
34 oc = cpu_class_by_name(TYPE_UNICORE32_CPU, cpu_model);
38 cpu = UNICORE32_CPU(object_new(object_class_get_name(oc)));
41 object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
46 uint32_t HELPER(clo)(uint32_t x)
51 uint32_t HELPER(clz)(uint32_t x)
56 #ifndef CONFIG_USER_ONLY
57 void helper_cp0_set(CPUUniCore32State *env, uint32_t val, uint32_t creg,
61 * movc pp.nn, rn, #imm9
65 * 2: page table base reg.
66 * 3: data fault status reg.
67 * 4: insn fault status reg.
70 * imm9: split UCOP_IMM10 with bit5 is 0
77 env->cp0.c1_sys = val;
83 env->cp0.c2_base = val;
89 env->cp0.c3_faultstatus = val;
95 env->cp0.c4_faultaddr = val;
100 DPRINTF("Invalidate Entire I&D cache\n");
103 DPRINTF("Invalidate Entire Icache\n");
106 DPRINTF("Invalidate Entire Dcache\n");
109 DPRINTF("Clean Entire Dcache\n");
112 DPRINTF("Flush Entire Dcache\n");
115 DPRINTF("Invalidate Dcache line\n");
118 DPRINTF("Clean Dcache line\n");
121 DPRINTF("Flush Dcache line\n");
126 if ((cop <= 6) && (cop >= 2)) {
127 /* invalid all tlb */
137 DPRINTF("Wrong register (%d) or wrong operation (%d) in cp0_set!\n",
141 uint32_t helper_cp0_get(CPUUniCore32State *env, uint32_t creg, uint32_t cop)
144 * movc rd, pp.nn, #imm9
147 * 0: cpuid and cachetype
148 * 1: sys control reg.
149 * 2: page table base reg.
150 * 3: data fault status reg.
151 * 4: insn fault status reg.
152 * imm9: split UCOP_IMM10 with bit5 is 0
158 return env->cp0.c0_cpuid;
160 return env->cp0.c0_cachetype;
165 return env->cp0.c1_sys;
170 return env->cp0.c2_base;
175 return env->cp0.c3_faultstatus;
180 return env->cp0.c4_faultaddr;
184 DPRINTF("Wrong register (%d) or wrong operation (%d) in cp0_set!\n",
192 * 1. curses windows will be blank when switching back
193 * 2. backspace is not handled yet
195 static void putc_on_screen(unsigned char ch)
197 static WINDOW *localwin;
201 /* Assume 80 * 30 screen to minimize the implementation */
202 localwin = newwin(30, 80, 0, 0);
203 scrollok(localwin, TRUE);
208 wprintw(localwin, "%c", ch);
212 wprintw(localwin, "%c", ch);
215 /* If '\r' is put before '\n', the curses window will destroy the
216 * last print line. And meanwhile, '\n' implifies '\r' inside. */
218 default: /* Not handled, so just print it hex code */
219 wprintw(localwin, "-- 0x%x --", ch);
226 #define putc_on_screen(c) do { } while (0)
229 void helper_cp1_putc(target_ulong x)
231 putc_on_screen((unsigned char)x); /* Output to screen */
232 DPRINTF("%c", x); /* Output to stdout */
236 #ifdef CONFIG_USER_ONLY
237 void switch_mode(CPUUniCore32State *env, int mode)
239 if (mode != ASR_MODE_USER) {
240 cpu_abort(env, "Tried to switch out of user mode\n");
244 void uc32_cpu_do_interrupt(CPUState *cs)
246 UniCore32CPU *cpu = UNICORE32_CPU(cs);
247 CPUUniCore32State *env = &cpu->env;
249 cpu_abort(env, "NO interrupt in user mode\n");
252 int uc32_cpu_handle_mmu_fault(CPUUniCore32State *env, target_ulong address,
253 int access_type, int mmu_idx)
255 cpu_abort(env, "NO mmu fault in user mode\n");