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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
// license:BSD-3-Clause
// copyright-holders:Philip Bennett
/***************************************************************************
esripdsm.c
Implementation of the Entertainment Sciences
AM29116-based Real Time Image Processor
***************************************************************************/
#include "emu.h"
#include "debugger.h"
/***************************************************************************
DISASSEMBLY HOOK (TODO: FINISH)
***************************************************************************/
static offs_t internal_disasm_esrip(cpu_device *device, std::ostream &stream, offs_t pc, const uint8_t *oprom, const uint8_t *opram, int options)
{
#if 0
static const char* const jmp_types[] =
{
"JCT",
"JT1",
"JT2",
"JT3",
"JT4",
"JLBRM",
"J#HBLANK",
"JMP",
};
static const char* const njmp_types[] =
{
"JNCT",
"JNT1",
"JNT2",
"JNT3",
"JNT4",
"JNLBRM",
"J#HBLANK",
" ",
};
#endif
uint64_t inst = big_endianize_int64(*(uint64_t *)oprom);
uint32_t inst_hi = inst >> 32;
uint32_t inst_lo = inst & 0xffffffff;
uint16_t ins = (inst_hi >> 16) & 0xffff;
uint8_t ctrl = (inst_hi >> 8) & 0xff;
uint8_t jmp_dest = (inst_lo >> 8) & 0xff;
uint8_t jmp_ctrl = (ctrl >> 3) & 0x1f;
uint8_t ctrl1 = (inst_lo >> 16) & 0xff;
uint8_t ctrl2 = (inst_lo >> 24) & 0xff;
uint8_t ctrl3 = (inst_hi) & 0xff;
util::stream_format(stream, "%04x %c%c%c%c %02x %s%s%s%s%s%s%s%s %c%s%s%s %c%c%c%c%c%c%c%c",
ins,
ctrl & 1 ? 'D' : ' ',
ctrl & 2 ? ' ' : 'Y',
ctrl & 4 ? 'S' : ' ',
(~jmp_ctrl & 0x18) ? 'J' : ' ',
jmp_dest,
ctrl1 & 0x01 ? " " : "I ",
ctrl1 & 0x02 ? " " : "FL",
ctrl1 & 0x04 ? "FE" : " ",
ctrl1 & 0x08 ? " " : "FR",
ctrl1 & 0x10 ? " " : "IL",
ctrl1 & 0x20 ? "IE" : " ",
ctrl1 & 0x40 ? " " : "IR",
ctrl1 & 0x80 ? " " : "IW",
ctrl2 & 0x80 ? ' ' : 'O',
ctrl2 & 0x40 ? " " : "IXLLD",
ctrl2 & 0x20 ? " " : "IADLD",
ctrl2 & 0x10 ? " " : "SCALD",
ctrl3 & 0x01 ? ' ' : '0',
ctrl3 & 0x02 ? ' ' : '1',
ctrl3 & 0x04 ? ' ' : '2',
ctrl3 & 0x08 ? ' ' : '3',
ctrl3 & 0x10 ? ' ' : '4',
ctrl3 & 0x20 ? ' ' : '5',
ctrl3 & 0x40 ? ' ' : '6',
ctrl3 & 0x80 ? ' ' : '7'
);
return 1 | DASMFLAG_SUPPORTED;
}
CPU_DISASSEMBLE(esrip)
{
std::ostringstream stream;
offs_t result = internal_disasm_esrip(device, stream, pc, oprom, opram, options);
std::string stream_str = stream.str();
strcpy(buffer, stream_str.c_str());
return result;
}
|