1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#include <assert.h>
#include "cpu.h"
#include "helper.h"
#include "host-utils.h"
#include "hw/lm32_pic.h"
#include "hw/lm32_juart.h"
#if !defined(CONFIG_USER_ONLY)
#define MMUSUFFIX _mmu
#define SHIFT 0
#include "softmmu_template.h"
#define SHIFT 1
#include "softmmu_template.h"
#define SHIFT 2
#include "softmmu_template.h"
#define SHIFT 3
#include "softmmu_template.h"
void helper_raise_exception(CPULM32State *env, uint32_t index)
{
env->exception_index = index;
cpu_loop_exit(env);
}
void helper_hlt(CPULM32State *env)
{
env->halted = 1;
env->exception_index = EXCP_HLT;
cpu_loop_exit(env);
}
void helper_wcsr_im(CPULM32State *env, uint32_t im)
{
lm32_pic_set_im(env->pic_state, im);
}
void helper_wcsr_ip(CPULM32State *env, uint32_t im)
{
lm32_pic_set_ip(env->pic_state, im);
}
void helper_wcsr_jtx(CPULM32State *env, uint32_t jtx)
{
lm32_juart_set_jtx(env->juart_state, jtx);
}
void helper_wcsr_jrx(CPULM32State *env, uint32_t jrx)
{
lm32_juart_set_jrx(env->juart_state, jrx);
}
uint32_t helper_rcsr_im(CPULM32State *env)
{
return lm32_pic_get_im(env->pic_state);
}
uint32_t helper_rcsr_ip(CPULM32State *env)
{
return lm32_pic_get_ip(env->pic_state);
}
uint32_t helper_rcsr_jtx(CPULM32State *env)
{
return lm32_juart_get_jtx(env->juart_state);
}
uint32_t helper_rcsr_jrx(CPULM32State *env)
{
return lm32_juart_get_jrx(env->juart_state);
}
/* Try to fill the TLB and return an exception if error. If retaddr is
NULL, it means that the function was called in C code (i.e. not
from generated code or from helper.c) */
void tlb_fill(CPULM32State *env, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
int ret;
ret = cpu_lm32_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret)) {
if (retaddr) {
/* now we have a real cpu fault */
cpu_restore_state(env, retaddr);
}
cpu_loop_exit(env);
}
}
#endif
|
