LXR qemu/target/lm32/op

   1#include "qemu/osdep.h"
   2#include "cpu.h"
   3#include "exec/helper-proto.h"
   4#include "qemu/host-utils.h"
   5#include "qemu/main-loop.h"
   6#include "sysemu/runstate.h"
   7
   8#include "hw/lm32/lm32_pic.h"
   9#include "hw/char/lm32_juart.h"
  10
  11#include "exec/exec-all.h"
  12#include "exec/cpu_ldst.h"
  13
  14#ifndef CONFIG_USER_ONLY
  15#endif
  16
  17#if !defined(CONFIG_USER_ONLY)
  18void raise_exception(CPULM32State *env, int index)
  19{
  20    CPUState *cs = env_cpu(env);
  21
  22    cs->exception_index = index;
  23    cpu_loop_exit(cs);
  24}
  25
  26void HELPER(raise_exception)(CPULM32State *env, uint32_t index)
  27{
  28    raise_exception(env, index);
  29}
  30
  31void HELPER(hlt)(CPULM32State *env)
  32{
  33    CPUState *cs = env_cpu(env);
  34
  35    cs->halted = 1;
  36    cs->exception_index = EXCP_HLT;
  37    cpu_loop_exit(cs);
  38}
  39
  40void HELPER(ill)(CPULM32State *env)
  41{
  42#ifndef CONFIG_USER_ONLY
  43    CPUState *cs = env_cpu(env);
  44    fprintf(stderr, "VM paused due to illegal instruction. "
  45            "Connect a debugger or switch to the monitor console "
  46            "to find out more.\n");
  47    vm_stop(RUN_STATE_PAUSED);
  48    cs->halted = 1;
  49    raise_exception(env, EXCP_HALTED);
  50#endif
  51}
  52
  53void HELPER(wcsr_bp)(CPULM32State *env, uint32_t bp, uint32_t idx)
  54{
  55    uint32_t addr = bp & ~1;
  56
  57    assert(idx < 4);
  58
  59    env->bp[idx] = bp;
  60    lm32_breakpoint_remove(env, idx);
  61    if (bp & 1) {
  62        lm32_breakpoint_insert(env, idx, addr);
  63    }
  64}
  65
  66void HELPER(wcsr_wp)(CPULM32State *env, uint32_t wp, uint32_t idx)
  67{
  68    lm32_wp_t wp_type;
  69
  70    assert(idx < 4);
  71
  72    env->wp[idx] = wp;
  73
  74    wp_type = lm32_wp_type(env->dc, idx);
  75    lm32_watchpoint_remove(env, idx);
  76    if (wp_type != LM32_WP_DISABLED) {
  77        lm32_watchpoint_insert(env, idx, wp, wp_type);
  78    }
  79}
  80
  81void HELPER(wcsr_dc)(CPULM32State *env, uint32_t dc)
  82{
  83    uint32_t old_dc;
  84    int i;
  85    lm32_wp_t old_type;
  86    lm32_wp_t new_type;
  87
  88    old_dc = env->dc;
  89    env->dc = dc;
  90
  91    for (i = 0; i < 4; i++) {
  92        old_type = lm32_wp_type(old_dc, i);
  93        new_type = lm32_wp_type(dc, i);
  94
  95        if (old_type != new_type) {
  96            lm32_watchpoint_remove(env, i);
  97            if (new_type != LM32_WP_DISABLED) {
  98                lm32_watchpoint_insert(env, i, env->wp[i], new_type);
  99            }
 100        }
 101    }
 102}
 103
 104void HELPER(wcsr_im)(CPULM32State *env, uint32_t im)
 105{
 106    qemu_mutex_lock_iothread();
 107    lm32_pic_set_im(env->pic_state, im);
 108    qemu_mutex_unlock_iothread();
 109}
 110
 111void HELPER(wcsr_ip)(CPULM32State *env, uint32_t im)
 112{
 113    qemu_mutex_lock_iothread();
 114    lm32_pic_set_ip(env->pic_state, im);
 115    qemu_mutex_unlock_iothread();
 116}
 117
 118void HELPER(wcsr_jtx)(CPULM32State *env, uint32_t jtx)
 119{
 120    lm32_juart_set_jtx(env->juart_state, jtx);
 121}
 122
 123void HELPER(wcsr_jrx)(CPULM32State *env, uint32_t jrx)
 124{
 125    lm32_juart_set_jrx(env->juart_state, jrx);
 126}
 127
 128uint32_t HELPER(rcsr_im)(CPULM32State *env)
 129{
 130    return lm32_pic_get_im(env->pic_state);
 131}
 132
 133uint32_t HELPER(rcsr_ip)(CPULM32State *env)
 134{
 135    return lm32_pic_get_ip(env->pic_state);
 136}
 137
 138uint32_t HELPER(rcsr_jtx)(CPULM32State *env)
 139{
 140    return lm32_juart_get_jtx(env->juart_state);
 141}
 142
 143uint32_t HELPER(rcsr_jrx)(CPULM32State *env)
 144{
 145    return lm32_juart_get_jrx(env->juart_state);
 146}
 147#endif
 148
 149