1 //---------------------------------------------------------------------------
2 // NEOPOP : Emulator as in Dreamland
3 //
4 // Copyright (c) 2001-2002 by neopop_uk
5 //---------------------------------------------------------------------------
6
7 //---------------------------------------------------------------------------
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version. See also the license.txt file for
12 // additional informations.
13 //---------------------------------------------------------------------------
14
15 #include "neopop.h"
16 #include "Z80_interface.h"
17 #include "gfx.h"
18 #include "mem.h"
19 #include "interrupt.h"
20 #include "sound.h"
21 #include "dma.h"
22 #include "bios.h"
23
24 namespace MDFN_IEN_NGP
25 {
26
27 //=============================================================================
28
29 uint8 ngpc_bios[0x10000]; //Holds bios program data
30
31 //=============================================================================
32
reset(void)33 void reset(void)
34 {
35 NGPGfx->power();
36 Z80_reset();
37 reset_int();
38 reset_timers();
39
40 reset_memory();
41 BIOSHLE_Reset();
42 reset_registers(); // TLCS900H registers
43 reset_dma();
44 }
45
46 //=============================================================================
47
48 static const uint8 font[0x800] = {
49
50 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
51 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
52 0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x00,0x00,0x00,0xFF,0xFF,0x00,0x00,0x00,
53 0x00,0x00,0x00,0xF8,0xF8,0x18,0x18,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
54 0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,
55 0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xF0,0xF0,0xF0,0xF0,0xF0,0xF0,0xF0,0xF0,
56 0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,
57 0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
58 0x20,0x30,0x38,0x3C,0x38,0x30,0x20,0x00,0x04,0x0C,0x1C,0x3C,0x1C,0x0C,0x04,0x00,
59 0x00,0x00,0xFE,0x7C,0x38,0x10,0x00,0x00,0x00,0x00,0x10,0x38,0x7C,0xFE,0x00,0x00,
60 0x20,0x3C,0x08,0x3C,0x28,0x7E,0x08,0x00,0x3C,0x24,0x3C,0x24,0x3C,0x24,0x24,0x00,
61 0x3C,0x24,0x24,0x3C,0x24,0x24,0x3C,0x00,0x10,0x10,0x54,0x54,0x10,0x28,0xC6,0x00,
62 0x10,0x12,0xD4,0x58,0x54,0x92,0x10,0x00,0x10,0x10,0x7C,0x10,0x38,0x54,0x92,0x00,
63 0x10,0x28,0x7C,0x92,0x38,0x54,0xFE,0x00,0x10,0x10,0x10,0x7C,0x10,0x10,0xFE,0x00,
64 0x7F,0xFF,0xE0,0xFF,0x7F,0x01,0xFF,0xFF,0xDC,0xDE,0x1F,0x9F,0xDF,0xDD,0xDC,0x9C,
65 0x3B,0x3B,0x3B,0xBB,0xFB,0xFB,0xFB,0x7B,0x8F,0x9E,0xBC,0xF8,0xF8,0xBC,0x9E,0x8F,
66 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x18,0x08,0x10,0x00,0x18,0x00,
67 0x6C,0x6C,0x24,0x48,0x00,0x00,0x00,0x00,0x14,0x14,0xFE,0x28,0xFE,0x50,0x50,0x00,
68 0x10,0x7C,0x90,0x7C,0x12,0xFC,0x10,0x00,0x42,0xA4,0xA8,0x54,0x2A,0x4A,0x84,0x00,
69 0x30,0x48,0x38,0x62,0x94,0x88,0x76,0x00,0x18,0x18,0x08,0x10,0x00,0x00,0x00,0x00,
70 0x08,0x10,0x20,0x20,0x20,0x10,0x08,0x00,0x20,0x10,0x08,0x08,0x08,0x10,0x20,0x00,
71 0x10,0x92,0x54,0x38,0x38,0x54,0x92,0x00,0x10,0x10,0x10,0xFE,0x10,0x10,0x10,0x00,
72 0x00,0x00,0x00,0x30,0x30,0x10,0x20,0x00,0x00,0x00,0x00,0xFE,0x00,0x00,0x00,0x00,
73 0x00,0x00,0x00,0x00,0x00,0x60,0x60,0x00,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x00,
74 0x3C,0x42,0x46,0x5A,0x62,0x42,0x3C,0x00,0x08,0x38,0x08,0x08,0x08,0x08,0x08,0x00,
75 0x3C,0x42,0x42,0x0C,0x30,0x40,0x7E,0x00,0x3C,0x42,0x02,0x1C,0x02,0x42,0x3C,0x00,
76 0x0C,0x14,0x24,0x44,0x7E,0x04,0x04,0x00,0x7E,0x40,0x7C,0x02,0x02,0x42,0x3C,0x00,
77 0x3C,0x40,0x7C,0x42,0x42,0x42,0x3C,0x00,0x7E,0x02,0x04,0x08,0x08,0x10,0x10,0x00,
78 0x3C,0x42,0x42,0x3C,0x42,0x42,0x3C,0x00,0x3C,0x42,0x42,0x42,0x3E,0x02,0x3C,0x00,
79 0x00,0x18,0x18,0x00,0x18,0x18,0x00,0x00,0x00,0x18,0x18,0x00,0x18,0x08,0x10,0x00,
80 0x00,0x08,0x10,0x20,0x10,0x08,0x00,0x00,0x00,0x00,0x3C,0x00,0x3C,0x00,0x00,0x00,
81 0x00,0x10,0x08,0x04,0x08,0x10,0x00,0x00,0x3C,0x62,0x62,0x0C,0x18,0x00,0x18,0x00,
82 0x7C,0x82,0xBA,0xA2,0xBA,0x82,0x7C,0x00,0x10,0x28,0x28,0x44,0x7C,0x82,0x82,0x00,
83 0x7C,0x42,0x42,0x7C,0x42,0x42,0x7C,0x00,0x1C,0x22,0x40,0x40,0x40,0x22,0x1C,0x00,
84 0x78,0x44,0x42,0x42,0x42,0x44,0x78,0x00,0x7E,0x40,0x40,0x7E,0x40,0x40,0x7E,0x00,
85 0x7E,0x40,0x40,0x7C,0x40,0x40,0x40,0x00,0x3C,0x42,0x80,0x9E,0x82,0x46,0x3A,0x00,
86 0x42,0x42,0x42,0x7E,0x42,0x42,0x42,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,
87 0x02,0x02,0x02,0x02,0x42,0x42,0x3C,0x00,0x42,0x44,0x48,0x50,0x68,0x44,0x42,0x00,
88 0x40,0x40,0x40,0x40,0x40,0x40,0x7E,0x00,0x82,0xC6,0xAA,0x92,0x82,0x82,0x82,0x00,
89 0x42,0x62,0x52,0x4A,0x46,0x42,0x42,0x00,0x38,0x44,0x82,0x82,0x82,0x44,0x38,0x00,
90 0x7C,0x42,0x42,0x7C,0x40,0x40,0x40,0x00,0x38,0x44,0x82,0x82,0x8A,0x44,0x3A,0x00,
91 0x7C,0x42,0x42,0x7C,0x48,0x44,0x42,0x00,0x3C,0x42,0x40,0x3C,0x02,0x42,0x3C,0x00,
92 0xFE,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x42,0x42,0x42,0x42,0x42,0x42,0x3C,0x00,
93 0x82,0x82,0x44,0x44,0x28,0x28,0x10,0x00,0x82,0x92,0x92,0xAA,0xAA,0x44,0x44,0x00,
94 0x82,0x44,0x28,0x10,0x28,0x44,0x82,0x00,0x82,0x44,0x28,0x10,0x10,0x10,0x10,0x00,
95 0x7E,0x04,0x08,0x10,0x20,0x40,0x7E,0x00,0x18,0x10,0x10,0x10,0x10,0x10,0x18,0x00,
96 0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x00,0x18,0x08,0x08,0x08,0x08,0x08,0x18,0x00,
97 0x10,0x28,0x44,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x00,
98 0x08,0x10,0x18,0x18,0x00,0x00,0x00,0x00,0x00,0x78,0x04,0x7C,0x84,0x84,0x7E,0x00,
99 0x40,0x40,0x7C,0x42,0x42,0x42,0x3C,0x00,0x00,0x00,0x3C,0x42,0x40,0x42,0x3C,0x00,
100 0x02,0x02,0x3E,0x42,0x42,0x42,0x3C,0x00,0x00,0x00,0x3C,0x42,0x7E,0x40,0x3E,0x00,
101 0x0C,0x10,0x3E,0x10,0x10,0x10,0x10,0x00,0x00,0x3C,0x42,0x42,0x3E,0x02,0x7C,0x00,
102 0x40,0x40,0x7C,0x42,0x42,0x42,0x42,0x00,0x18,0x18,0x00,0x08,0x08,0x08,0x08,0x00,
103 0x06,0x06,0x00,0x02,0x42,0x42,0x3C,0x00,0x20,0x20,0x26,0x28,0x30,0x28,0x26,0x00,
104 0x30,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00,0x80,0xEC,0x92,0x92,0x92,0x92,0x00,
105 0x00,0x40,0x78,0x44,0x44,0x44,0x44,0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x3C,0x00,
106 0x00,0x3C,0x42,0x42,0x7C,0x40,0x40,0x00,0x00,0x78,0x84,0x84,0x7C,0x04,0x06,0x00,
107 0x00,0x00,0x5C,0x62,0x40,0x40,0x40,0x00,0x00,0x00,0x3E,0x40,0x3C,0x02,0x7C,0x00,
108 0x00,0x10,0x7C,0x10,0x10,0x10,0x0E,0x00,0x00,0x00,0x42,0x42,0x42,0x42,0x3F,0x00,
109 0x00,0x00,0x42,0x42,0x24,0x24,0x18,0x00,0x00,0x00,0x92,0x92,0x92,0x92,0x6C,0x00,
110 0x00,0x00,0x42,0x24,0x18,0x24,0x42,0x00,0x00,0x00,0x42,0x42,0x3E,0x02,0x7C,0x00,
111 0x00,0x00,0x7E,0x02,0x3C,0x40,0x7E,0x00,0x08,0x10,0x10,0x20,0x10,0x10,0x08,0x00,
112 0x10,0x10,0x10,0x00,0x10,0x10,0x10,0x00,0x20,0x10,0x10,0x08,0x10,0x10,0x20,0x00,
113 0x00,0x00,0x60,0x92,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
114 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x90,0x90,0x60,0x00,
115 0x1E,0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x10,0xF0,0x00,
116 0x00,0x00,0x00,0x80,0x40,0x60,0x60,0x00,0x00,0x00,0x00,0x30,0x78,0x30,0x00,0x00,
117 0x20,0xF8,0x26,0x78,0xD0,0x80,0x7C,0x00,0x00,0x10,0x3A,0x1C,0x36,0x5A,0x36,0x00,
118 0x00,0x00,0x44,0x42,0x42,0x42,0x30,0x00,0x00,0x3C,0x00,0x3C,0x42,0x02,0x3C,0x00,
119 0x00,0x3C,0x00,0x7C,0x08,0x38,0x66,0x00,0x00,0x14,0x72,0x1C,0x32,0x52,0x34,0x00,
120 0x00,0x28,0x2C,0x3A,0x62,0x16,0x10,0x00,0x00,0x08,0x5C,0x6A,0x4A,0x0C,0x18,0x00,
121 0x00,0x08,0x0C,0x38,0x4C,0x4A,0x38,0x00,0x00,0x00,0x00,0x1C,0x62,0x02,0x1C,0x00,
122 0x00,0x00,0x80,0x7E,0x00,0x00,0x00,0x00,0x28,0xF2,0x3C,0x6A,0xAA,0xB6,0xEC,0x00,
123 0x80,0x88,0x84,0x84,0x82,0x92,0x70,0x00,0x78,0x00,0x3C,0xC2,0x02,0x04,0x78,0x00,
124 0x78,0x00,0xFC,0x08,0x30,0x50,0x9E,0x00,0x2C,0xF2,0x20,0x7C,0xA2,0xA2,0xE4,0x00,
125 0x28,0xF4,0x2A,0x4A,0x4A,0x88,0xB0,0x00,0x20,0xFC,0x12,0xFC,0x08,0xC2,0x7C,0x00,
126 0x04,0x18,0x60,0x80,0xC0,0x30,0x0E,0x00,0x84,0xBE,0x84,0x84,0x84,0x84,0x58,0x00,
127 0x00,0x7C,0x02,0x00,0x80,0x82,0x7E,0x00,0x20,0xFE,0x10,0x78,0x8C,0xC0,0x7C,0x00,
128 0x80,0x80,0x80,0x80,0x82,0x84,0x78,0x00,0x04,0xFE,0x3C,0x44,0x7C,0x04,0x78,0x00,
129 0x44,0x5E,0xF4,0x44,0x48,0x40,0x3E,0x00,0x44,0x58,0xE0,0x3E,0xC0,0x40,0x3C,0x00,
130 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x90,0x90,0x60,0x00,
131 0x1E,0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x10,0xF0,0x00,
132 0x00,0x00,0x00,0x80,0x40,0x60,0x60,0x00,0x00,0x00,0x00,0x30,0x78,0x30,0x00,0x00,
133 0x1E,0x62,0x1E,0x62,0x04,0x0C,0x30,0x00,0x00,0x00,0x1E,0x6A,0x0E,0x08,0x18,0x00,
134 0x00,0x00,0x06,0x18,0x68,0x08,0x08,0x00,0x00,0x10,0x1C,0x72,0x42,0x04,0x38,0x00,
135 0x00,0x00,0x0C,0x78,0x10,0x10,0x7E,0x00,0x00,0x08,0x08,0x7C,0x18,0x28,0x48,0x00,
136 0x00,0x00,0x26,0x1A,0x72,0x10,0x08,0x00,0x00,0x00,0x0C,0x34,0x04,0x08,0x7E,0x00,
137 0x00,0x00,0x78,0x04,0x3C,0x04,0x78,0x00,0x00,0x00,0x52,0x4A,0x22,0x04,0x38,0x00,
138 0x00,0x00,0x80,0x7E,0x00,0x00,0x00,0x00,0x3C,0xC2,0x14,0x1C,0x10,0x30,0x60,0x00,
139 0x02,0x0C,0x38,0xC8,0x08,0x08,0x08,0x00,0x60,0x3C,0xE2,0x82,0x82,0x04,0x38,0x00,
140 0x00,0x1C,0x70,0x10,0x10,0x1C,0xE2,0x00,0x08,0xFE,0x18,0x38,0x68,0xC8,0x18,0x00,
141 0x10,0x3E,0xD2,0x12,0x22,0x62,0xCC,0x00,0x20,0x3C,0xF0,0x1E,0xF0,0x08,0x08,0x00,
142 0x10,0x3E,0x62,0xC2,0x04,0x0C,0x70,0x00,0x40,0x7E,0x44,0x84,0x84,0x08,0x30,0x00,
143 0x3E,0xC2,0x02,0x02,0x02,0x02,0xFC,0x00,0x44,0x5E,0xE4,0x44,0x44,0x08,0xF0,0x00,
144 0x60,0x12,0xC2,0x22,0x04,0x04,0xF8,0x00,0x3C,0xC6,0x0C,0x08,0x38,0x6C,0xC6,0x00,
145 0x40,0x4E,0x72,0xC4,0x4C,0x40,0x3E,0x00,0x82,0x42,0x62,0x04,0x04,0x08,0x70,0x00,
146 0x3C,0x42,0x72,0x8A,0x04,0x0C,0x70,0x00,0x0C,0xF8,0x10,0xFE,0x10,0x10,0x60,0x00,
147 0x22,0xA2,0x92,0x42,0x04,0x08,0x70,0x00,0x3C,0x40,0x1E,0xE8,0x08,0x10,0x60,0x00,
148 0x40,0x40,0x70,0x4C,0x42,0x40,0x40,0x00,0x08,0x3E,0xC8,0x08,0x08,0x18,0x70,0x00,
149 0x00,0x1C,0x60,0x00,0x00,0x3C,0xC2,0x00,0x3C,0xC2,0x26,0x38,0x1C,0x36,0xE2,0x00,
150 0x10,0x3C,0xC6,0x1C,0x38,0xD6,0x12,0x00,0x02,0x02,0x02,0x06,0x04,0x1C,0xF0,0x00,
151 0x18,0x4C,0x44,0x46,0x42,0x82,0x82,0x00,0x80,0x86,0xBC,0xE0,0x80,0x80,0x7E,0x00,
152 0x3C,0xC2,0x02,0x02,0x04,0x08,0x30,0x00,0x30,0x48,0x4C,0x84,0x86,0x02,0x02,0x00,
153 0x10,0xFE,0x10,0x54,0x52,0x92,0x92,0x00,0x3C,0xC2,0x02,0x44,0x28,0x10,0x0C,0x00,
154 0x70,0x0C,0x60,0x18,0xC4,0x30,0x0E,0x00,0x30,0x40,0x4C,0x84,0x8E,0xBA,0x62,0x00,
155 0x04,0x04,0x64,0x18,0x0C,0x16,0xE2,0x00,0x1C,0xE0,0x3E,0xE0,0x20,0x20,0x1E,0x00,
156 0x4E,0x52,0x62,0xE4,0x20,0x10,0x18,0x00,0x1C,0x64,0x04,0x08,0x08,0x10,0xFE,0x00,
157 0x1C,0x62,0x02,0x3E,0x02,0x02,0x7C,0x00,0x3C,0xC0,0x3E,0xC2,0x02,0x04,0x78,0x00,
158 0x44,0x42,0x42,0x42,0x22,0x04,0x78,0x00,0x50,0x50,0x52,0x52,0x52,0x54,0x88,0x00,
159 0x80,0x80,0x82,0x82,0x84,0x88,0xF0,0x00,0x1C,0xE2,0x82,0x82,0x82,0x4C,0x74,0x00,
160 0x3C,0xC2,0x82,0x82,0x02,0x04,0x38,0x00,0xC0,0x62,0x22,0x02,0x04,0x08,0xF0,0x00,
161 0x00,0x00,0x00,0x00,0x0A,0x05,0x05,0x00,0x00,0x00,0x00,0x00,0x02,0x05,0x02,0x00,
162 0x20,0xF8,0x40,0x5E,0x80,0xA0,0x9E,0x00,0x20,0xFE,0x40,0x7C,0xC2,0x86,0x3C,0x00,
163 0x00,0x3C,0xC6,0x02,0x02,0x0C,0x38,0x00,0x0E,0xF8,0x10,0x20,0x20,0x10,0x0E,0x00,
164 0x40,0x4C,0x30,0x40,0x80,0x80,0x7E,0x00,0x44,0xF2,0x4A,0x9C,0xA4,0xA6,0x3A,0x00,
165 0x40,0x5C,0x82,0x80,0xA0,0xA0,0x9E,0x00,0x48,0x7C,0x52,0xB2,0xBE,0xAA,0x4C,0x00,
166 0x20,0xFC,0x32,0x62,0xEE,0xAA,0x2C,0x00,0x38,0x54,0x92,0x92,0xB2,0xA2,0x4C,0x00,
167 0x44,0x5E,0x84,0x9C,0xA4,0xA6,0x9C,0x00,0x28,0xEE,0x44,0x84,0x84,0x44,0x38,0x00,
168 0x78,0x10,0x64,0x34,0x8A,0x8A,0x30,0x00,0x30,0x58,0x48,0x84,0x84,0x02,0x02,0x00,
169 0xBC,0x88,0xBE,0x84,0xBC,0xA6,0x9C,0x00,0x68,0x1E,0x68,0x1E,0x78,0x8C,0x7A,0x00,
170 0x70,0x14,0x7C,0x96,0x94,0x94,0x68,0x00,0x2C,0xF2,0x60,0xA0,0xA2,0xC2,0x7C,0x00,
171 0x48,0x7C,0x6A,0xAA,0xB2,0xB2,0x6C,0x00,0x10,0xF8,0x20,0xF8,0x22,0x22,0x1C,0x00,
172 0x48,0x5C,0x6A,0xC2,0x64,0x20,0x18,0x00,0x10,0xBC,0xD6,0xCA,0xAA,0x1C,0x70,0x00,
173 0x10,0x1C,0x12,0x70,0x9C,0x92,0x70,0x00,0xE0,0x18,0x40,0x7C,0xC2,0x82,0x3C,0x00,
174 0x44,0x42,0x82,0xA2,0x62,0x04,0x78,0x00,0x7C,0x38,0x7C,0xC2,0xBA,0x26,0x3C,0x00,
175 0x48,0xD4,0x64,0x64,0xC4,0xC4,0x46,0x00,0x7C,0x30,0x7C,0xC2,0x82,0x06,0x3C,0x00,
176 0x20,0xFC,0x32,0x62,0xE2,0xA2,0x2C,0x00,0x10,0x30,0x60,0x72,0xD2,0x92,0x9C,0x00,
177 0x00,0x00,0x00,0x00,0x0A,0x05,0x05,0x00,0x00,0x00,0x00,0x00,0x02,0x05,0x02,0x00
178 };
179
bios_install(void)180 bool bios_install(void)
181 {
182 //=== Install the reverse engineered bios
183 int i;
184
185 uint32 vectable[] =
186 {
187 0xFF27A2, //0 VECT_SHUTDOWN
188 0xFF1030, //1 VECT_CLOCKGEARSET
189 0xFF1440, //2 VECT_RTCGET
190 0xFF12B4, //3 ?
191 0xFF1222, //4 VECT_INTLVSET
192 0xFF8D8A, //5 VECT_SYSFONTSET
193 0xFF6FD8, //6 VECT_FLASHWRITE
194 0xFF7042, //7 VECT_FLASHALLERS
195 0xFF7082, //8 VECT_FLASHERS
196 0xFF149B, //9 VECT_ALARMSET
197 0xFF1033, //10 ?
198 0xFF1487, //11 VECT_ALARMDOWNSET
199 0xFF731F, //12 ?
200 0xFF70CA, //13 VECT_FLASHPROTECT
201 0xFF17C4, //14 VECT_GEMODESET
202 0xFF1032, //15 ?
203
204 0xFF2BBD, //0x10 VECT_COMINIT
205 0xFF2C0C, //0x11 VECT_COMSENDSTART
206 0xFF2C44, //0x12 VECT_COMRECIVESTART
207 0xFF2C86, //0x13 VECT_COMCREATEDATA
208 0xFF2CB4, //0x14 VECT_COMGETDATA
209 0xFF2D27, //0x15 VECT_COMONRTS
210 0xFF2D33, //0x16 VECT_COMOFFRTS
211 0xFF2D3A, //0x17 VECT_COMSENDSTATUS
212 0xFF2D4E, //0x18 VECT_COMRECIVESTATUS
213 0xFF2D6C, //0x19 VECT_COMCREATEBUFDATA
214 0xFF2D85, //0x1a VECT_COMGETBUFDATA
215 };
216
217 //System Call Table, install iBIOSHLE instructions
218 for (i = 0; i <= 0x1A; i++)
219 {
220 MDFN_en32lsb(&ngpc_bios[0xFE00 + (i * 4)], vectable[i]);
221 ngpc_bios[vectable[i] & 0xFFFF] = 0x1F; //iBIOSHLE
222 }
223
224 //System Font
225 memcpy(ngpc_bios + 0x8DCF, font, 0x800);
226
227 //Default Interrupt handler
228 ngpc_bios[0x23DF] = 0x07; //RETI
229
230 // ==========
231
232 //Install a Quick and Dirty Bios
233 ngpc_bios[0xFFFE] = 0x68; // - JR 0xFFFFFE (Infinite loop!)
234 ngpc_bios[0xFFFF] = 0xFE;
235
236 return true; //Success
237 }
238
239 }
240
241 //=============================================================================
242