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1 nishi 1 
/* $Id: shiroi.c 13 2024-08-29 04:36:14Z nishi $ */
2 
 
8 nishi 3 
#include "io.h"
12 nishi 4 
 
9 nishi 5 
#include "math.h"
6 
#include "sound.h"
8 nishi 7 
#include "video.h"
8 
#include "text.h"
12 nishi 9 
#include "debug.h"
10 
 
8 nishi 11 
#include "char.h"
12 
 
1 nishi 13 
void init_cards(void);
7 nishi 14 
void basic(void);
1 nishi 15 
 
8 nishi 16 
extern short vdp_addr;
17 
extern short vdp_data;
18 
extern short vdg_addr;
19 
extern short vdg_data;
7 nishi 20 
 
8 nishi 21 
extern short psg_addr;
22 
extern short psg_data;
7 nishi 23 
 
12 nishi 24 
extern short debug_addr;
25 
extern short debug_data;
26 
 
8 nishi 27 
extern short fpu_stack;
28 
extern short fpu_command;
7 nishi 29 
 
8 nishi 30 
extern short text_kbd_data;
1 nishi 31 
 
8 nishi 32 
extern int scrwidth;
33 
extern int scrheight;
1 nishi 34 
 
8 nishi 35 
extern char caps;
7 nishi 36 
 
4 nishi 37 
unsigned char keylist[13 * 4];
38 
unsigned char keylist_caps[13 * 4];
39 
 
2 nishi 40 
void main(void){
1 nishi 41 
	int i;
42 
 
4 nishi 43 
/*
44 
 * / 1 2 3 4 5 6 7 8 9 10 11 12 13
7 nishi 45 
 * 1 1 2 3 4 5 6 7 8 9 0  -  =  bs
4 nishi 46 
 * 2 q w e r t y u i o p  [  ]  rt
47 
 * 3 a s d f g h j k l ;  '  \  cl
48 
 * 4 z x c v b n m , . /  sp
5 nishi 49 
 *
50 
 * When Caps Lock
51 
 *
52 
 * / 1 2 3 4 5 6 7 8 9 10 11 12 13
7 nishi 53 
 * 1 ! @ # $ % ^ & * ( )  _  +  bs
5 nishi 54 
 * 2 Q W E R T Y U I O P  {  }  rt
55 
 * 3 A S D F G H J K L :  "  |  cl
56 
 * 4 Z X C V B N M < > ?  sp
4 nishi 57 
 */
58 
	const char* keys;
59 
 
7 nishi 60 
	keys = "1234567890-=\x08";
4 nishi 61 
	for(i = 0; i < 13; i++){
62 
		keylist[i] = keys[i];
63 
	}
64 
	keys = "qwertyuiop[]\n";
65 
	for(i = 0; i < 13; i++){
66 
		keylist[13 + i] = keys[i];
67 
	}
68 
	keys = "asdfghjkl;'\\!";
69 
	for(i = 0; i < 13; i++){
70 
		keylist[26 + i] = keys[i];
71 
	}
72 
	keys = "zxcvbnm,./    ";
73 
	for(i = 0; i < 13; i++){
74 
		keylist[39 + i] = keys[i];
75 
	}
76 
 
7 nishi 77 
	keys = "!@#$%^&*()_+\x08";
4 nishi 78 
	for(i = 0; i < 13; i++){
79 
		keylist_caps[i] = keys[i];
80 
	}
81 
	keys = "QWERTYUIOP{}\n";
82 
	for(i = 0; i < 13; i++){
83 
		keylist_caps[13 + i] = keys[i];
84 
	}
85 
	keys = "ASDFGHJKL:\"|!";
86 
	for(i = 0; i < 13; i++){
87 
		keylist_caps[26 + i] = keys[i];
88 
	}
89 
	keys = "ZXCVBNM<>?    ";
90 
	for(i = 0; i < 13; i++){
91 
		keylist_caps[39 + i] = keys[i];
92 
	}
93 
 
1 nishi 94 
	vdp_addr = -1;
7 nishi 95 
	vdg_addr = -1;
1 nishi 96 
	psg_addr = -1;
12 nishi 97 
	debug_addr = -1;
7 nishi 98 
	fpu_stack = -1;
3 nishi 99 
	text_kbd_data = -1;
1 nishi 100 
 
101 
	init_cards();
102 
 
8 nishi 103 
#ifdef ONLY_VDP
104 
	if(vdp_addr == -1){
105 
#else
7 nishi 106 
	if(vdp_addr == -1 && vdg_addr == -1){
8 nishi 107 
#endif
1 nishi 108 
		int i;
13 nishi 109 
		debug_number(0x0001);
2 nishi 110 
		for(i = 0; i < 3; i++){
13 nishi 111 
			_beep(1L * 1024);
1 nishi 112 
			unsigned long j;
13 nishi 113 
			for(j = 0; j < 1L * 1024; j++);
1 nishi 114 
		}
2 nishi 115 
		while(1);
1 nishi 116 
	}
117 
 
8 nishi 118 
	video_init();
119 
	text_init();
1 nishi 120 
 
7 nishi 121 
	clear();
1 nishi 122 
 
10 nishi 123 
	beep();
1 nishi 124 
 
3 nishi 125 
	if(text_kbd_data == -1){
13 nishi 126 
		debug_number(0x0002);
3 nishi 127 
		putstr("Text  Card Mark I not present\r\n");
128 
		putstr("Text  Card Mark I is required to use the BASIC\r\n");
129 
		putstr("Halted. Get one.\r\n");
130 
		while(1);
131 
	}
7 nishi 132 
	if(fpu_stack == -1){
13 nishi 133 
		debug_number(0x0003);
7 nishi 134 
		putstr("Math  Card Mark I not present\r\n");
135 
		putstr("Math  Card Mark I is required to use the BASIC\r\n");
136 
		putstr("Halted. Get one.\r\n");
137 
		while(1);
138 
	}
1 nishi 139 
 
7 nishi 140 
	int incr;
141 
	int move = 0;
142 
	char k;
143 
	int wait = 0;
144 
 
145 
	const char* title;
146 
 
8 nishi 147 
#ifdef ONLY_VDP
7 nishi 148 
	if(vdp_addr != -1){
8 nishi 149 
#else
150 
	if(vdp_addr != -1 || vdg_addr != -1){
151 
#endif
7 nishi 152 
		title = "Shiroi Microcomputer";
8 nishi 153 
		setvramaddr(scrwidth / 2 - strlen(title) / 2 + mull((scrheight - 9) / 2 - 1 + 3, scrwidth));
154 
		for(i = 0; title[i] != 0; i++) vramchar(title[i]);
7 nishi 155 
 
8 nishi 156 
		if(vdp_addr != -1){
157 
			title = "\x82 2024 Nishi";
158 
		}else if(vdg_addr != -1){
159 
			title = "(C) 2024 Nishi";
160 
		}
161 
		setvramaddr(scrwidth / 2 - strlen(title) / 2 + mull(scrheight - 2, scrwidth));
162 
		for(i = 0; title[i] != 0; i++) vramchar(title[i]);
7 nishi 163 
 
164 
		title = "Press any key to begin";
8 nishi 165 
		setvramaddr(scrwidth / 2 - strlen(title) / 2 + mull((scrheight - 9) / 2 + 1 + 3, scrwidth));
166 
		for(i = 0; title[i] != 0; i++) vramchar(title[i]);
7 nishi 167 
	}
168 
 
169 
move_bar:
170 
	if(vdp_addr != -1){
8 nishi 171 
	}
172 
#ifndef ONLY_VDP
173 
	else if(vdg_addr != -1){
7 nishi 174 
		goto skip;
175 
	}
8 nishi 176 
#endif
7 nishi 177 
	incr = move;
178 
	for(i = 0; i < 16; i++){
179 
		int j;
180 
		for(j = 0; j < 3; j++){
181 
			int p = incr;
182 
			if(p >= 15) p = p - 15;
183 
			if(wait == 0){
8 nishi 184 
				setvramaddr(i * 2 + j * 32);
185 
				_vramchar((p + 1) * 8 + 0x80);
186 
				_vramchar((p + 1) * 8 + 0x80);
187 
				setvramaddr(i * 2 + 32 * 20 - j * 32);
188 
				_vramchar((p + 1) * 8 + 0x80);
189 
				_vramchar((p + 1) * 8 + 0x80);
7 nishi 190 
			}else{
191 
				if(i * 2 - 1 < 0){
8 nishi 192 
					setvramaddr(i * 2 + j * 32);
193 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 194 
				}else{
8 nishi 195 
					setvramaddr(i * 2 + j * 32 - 1);
196 
					_vramchar((p + 1) * 8 + 0x80);
197 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 198 
				}
199 
				if(i * 2 - 1 < 0){
8 nishi 200 
					setvramaddr(i * 2 + 32 * 20 - j * 32);
201 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 202 
				}else{
8 nishi 203 
					setvramaddr(i * 2 + 32 * 20 - j * 32 - 1);
204 
					_vramchar((p + 1) * 8 + 0x80);
205 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 206 
				}
207 
			}
208 
		}
209 
		incr++;
210 
		if(incr == 15) incr = 0;
211 
	}
212 
	wait++;
213 
	if(wait == 2){
214 
		wait = 0;
215 
		move++;
216 
		if(move == 15) move = 0;
217 
	}
12 nishi 218 
	for(i = 0; i < 3 * 1024 / 16; i++);
7 nishi 219 
 
220 
skip:
221 
	if((k = inp(text_kbd_data)) == 0) goto move_bar;
222 
	while(inp(text_kbd_data) != 0);
223 
 
224 
	if(vdp_addr == -1){
225 
		outp(vdp_addr, 0xf0);
226 
		outp(vdp_addr, 0x87);
227 
	}
228 
 
8 nishi 229 
	basic();
3 nishi 230 
}
1 nishi 231 
 
2 nishi 232 
void init_cards(void){
1 nishi 233 
	int i;
234 
	int port = 2;
2 nishi 235 
	for(i = 0; i < 256 / 3; i++){
1 nishi 236 
		int t = inp(port);
2 nishi 237 
		if(t != 0){
8 nishi 238 
			video_card(t, port);
9 nishi 239 
			sound_card(t, port);
240 
			math_card(t, port);
8 nishi 241 
			text_card(t, port);
12 nishi 242 
			debug_card(t, port);
1 nishi 243 
		}
244 
		port += 3;
245 
	}
246 
}