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"
14 #include "exec/helper-proto.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)
32 cpu = UNICORE32_CPU(cpu_generic_init(TYPE_UNICORE32_CPU, cpu_model));
39 uint32_t HELPER(clo)(uint32_t x)
44 uint32_t HELPER(clz)(uint32_t x)
49 #ifndef CONFIG_USER_ONLY
50 void helper_cp0_set(CPUUniCore32State *env, uint32_t val, uint32_t creg,
53 UniCore32CPU *cpu = uc32_env_get_cpu(env);
56 * movc pp.nn, rn, #imm9
60 * 2: page table base reg.
61 * 3: data fault status reg.
62 * 4: insn fault status reg.
65 * imm9: split UCOP_IMM10 with bit5 is 0
72 env->cp0.c1_sys = val;
78 env->cp0.c2_base = val;
84 env->cp0.c3_faultstatus = val;
90 env->cp0.c4_faultaddr = val;
95 DPRINTF("Invalidate Entire I&D cache\n");
98 DPRINTF("Invalidate Entire Icache\n");
101 DPRINTF("Invalidate Entire Dcache\n");
104 DPRINTF("Clean Entire Dcache\n");
107 DPRINTF("Flush Entire Dcache\n");
110 DPRINTF("Invalidate Dcache line\n");
113 DPRINTF("Clean Dcache line\n");
116 DPRINTF("Flush Dcache line\n");
121 if ((cop <= 6) && (cop >= 2)) {
122 /* invalid all tlb */
123 tlb_flush(CPU(cpu), 1);
132 DPRINTF("Wrong register (%d) or wrong operation (%d) in cp0_set!\n",
136 uint32_t helper_cp0_get(CPUUniCore32State *env, uint32_t creg, uint32_t cop)
139 * movc rd, pp.nn, #imm9
142 * 0: cpuid and cachetype
143 * 1: sys control reg.
144 * 2: page table base reg.
145 * 3: data fault status reg.
146 * 4: insn fault status reg.
147 * imm9: split UCOP_IMM10 with bit5 is 0
153 return env->cp0.c0_cpuid;
155 return env->cp0.c0_cachetype;
160 return env->cp0.c1_sys;
165 return env->cp0.c2_base;
170 return env->cp0.c3_faultstatus;
175 return env->cp0.c4_faultaddr;
179 DPRINTF("Wrong register (%d) or wrong operation (%d) in cp0_set!\n",
187 * 1. curses windows will be blank when switching back
188 * 2. backspace is not handled yet
190 static void putc_on_screen(unsigned char ch)
192 static WINDOW *localwin;
196 /* Assume 80 * 30 screen to minimize the implementation */
197 localwin = newwin(30, 80, 0, 0);
198 scrollok(localwin, TRUE);
203 wprintw(localwin, "%c", ch);
207 wprintw(localwin, "%c", ch);
210 /* If '\r' is put before '\n', the curses window will destroy the
211 * last print line. And meanwhile, '\n' implifies '\r' inside. */
213 default: /* Not handled, so just print it hex code */
214 wprintw(localwin, "-- 0x%x --", ch);
221 #define putc_on_screen(c) do { } while (0)
224 void helper_cp1_putc(target_ulong x)
226 putc_on_screen((unsigned char)x); /* Output to screen */
227 DPRINTF("%c", x); /* Output to stdout */
231 #ifdef CONFIG_USER_ONLY
232 void switch_mode(CPUUniCore32State *env, int mode)
234 UniCore32CPU *cpu = uc32_env_get_cpu(env);
236 if (mode != ASR_MODE_USER) {
237 cpu_abort(CPU(cpu), "Tried to switch out of user mode\n");
241 void uc32_cpu_do_interrupt(CPUState *cs)
243 cpu_abort(cs, "NO interrupt in user mode\n");
246 int uc32_cpu_handle_mmu_fault(CPUState *cs, vaddr address,
247 int access_type, int mmu_idx)
249 cpu_abort(cs, "NO mmu fault in user mode\n");
254 bool uc32_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
256 if (interrupt_request & CPU_INTERRUPT_HARD) {
257 UniCore32CPU *cpu = UNICORE32_CPU(cs);
258 CPUUniCore32State *env = &cpu->env;
260 if (!(env->uncached_asr & ASR_I)) {
261 cs->exception_index = UC32_EXCP_INTR;
262 uc32_cpu_do_interrupt(cs);