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1 nishi 1 
/* $Id: shiroi.c 12 2024-08-29 04:19:08Z 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;
2 nishi 109 
		for(i = 0; i < 3; i++){
12 nishi 110 
			_beep(1L * 1024 / 2);
1 nishi 111 
			unsigned long j;
12 nishi 112 
			for(j = 0; j < 1L * 1024 / 2; j++);
1 nishi 113 
		}
2 nishi 114 
		while(1);
1 nishi 115 
	}
116 
 
8 nishi 117 
	video_init();
118 
	text_init();
1 nishi 119 
 
7 nishi 120 
	clear();
1 nishi 121 
 
10 nishi 122 
	beep();
1 nishi 123 
 
3 nishi 124 
	if(text_kbd_data == -1){
125 
		putstr("Text  Card Mark I not present\r\n");
126 
		putstr("Text  Card Mark I is required to use the BASIC\r\n");
127 
		putstr("Halted. Get one.\r\n");
128 
		while(1);
129 
	}
7 nishi 130 
	if(fpu_stack == -1){
131 
		putstr("Math  Card Mark I not present\r\n");
132 
		putstr("Math  Card Mark I is required to use the BASIC\r\n");
133 
		putstr("Halted. Get one.\r\n");
134 
		while(1);
135 
	}
1 nishi 136 
 
7 nishi 137 
	int incr;
138 
	int move = 0;
139 
	char k;
140 
	int wait = 0;
141 
 
142 
	const char* title;
143 
 
8 nishi 144 
#ifdef ONLY_VDP
7 nishi 145 
	if(vdp_addr != -1){
8 nishi 146 
#else
147 
	if(vdp_addr != -1 || vdg_addr != -1){
148 
#endif
7 nishi 149 
		title = "Shiroi Microcomputer";
8 nishi 150 
		setvramaddr(scrwidth / 2 - strlen(title) / 2 + mull((scrheight - 9) / 2 - 1 + 3, scrwidth));
151 
		for(i = 0; title[i] != 0; i++) vramchar(title[i]);
7 nishi 152 
 
8 nishi 153 
		if(vdp_addr != -1){
154 
			title = "\x82 2024 Nishi";
155 
		}else if(vdg_addr != -1){
156 
			title = "(C) 2024 Nishi";
157 
		}
158 
		setvramaddr(scrwidth / 2 - strlen(title) / 2 + mull(scrheight - 2, scrwidth));
159 
		for(i = 0; title[i] != 0; i++) vramchar(title[i]);
7 nishi 160 
 
161 
		title = "Press any key to begin";
8 nishi 162 
		setvramaddr(scrwidth / 2 - strlen(title) / 2 + mull((scrheight - 9) / 2 + 1 + 3, scrwidth));
163 
		for(i = 0; title[i] != 0; i++) vramchar(title[i]);
7 nishi 164 
	}
165 
 
166 
move_bar:
167 
	if(vdp_addr != -1){
8 nishi 168 
	}
169 
#ifndef ONLY_VDP
170 
	else if(vdg_addr != -1){
7 nishi 171 
		goto skip;
172 
	}
8 nishi 173 
#endif
7 nishi 174 
	incr = move;
175 
	for(i = 0; i < 16; i++){
176 
		int j;
177 
		for(j = 0; j < 3; j++){
178 
			int p = incr;
179 
			if(p >= 15) p = p - 15;
180 
			if(wait == 0){
8 nishi 181 
				setvramaddr(i * 2 + j * 32);
182 
				_vramchar((p + 1) * 8 + 0x80);
183 
				_vramchar((p + 1) * 8 + 0x80);
184 
				setvramaddr(i * 2 + 32 * 20 - j * 32);
185 
				_vramchar((p + 1) * 8 + 0x80);
186 
				_vramchar((p + 1) * 8 + 0x80);
7 nishi 187 
			}else{
188 
				if(i * 2 - 1 < 0){
8 nishi 189 
					setvramaddr(i * 2 + j * 32);
190 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 191 
				}else{
8 nishi 192 
					setvramaddr(i * 2 + j * 32 - 1);
193 
					_vramchar((p + 1) * 8 + 0x80);
194 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 195 
				}
196 
				if(i * 2 - 1 < 0){
8 nishi 197 
					setvramaddr(i * 2 + 32 * 20 - j * 32);
198 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 199 
				}else{
8 nishi 200 
					setvramaddr(i * 2 + 32 * 20 - j * 32 - 1);
201 
					_vramchar((p + 1) * 8 + 0x80);
202 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 203 
				}
204 
			}
205 
		}
206 
		incr++;
207 
		if(incr == 15) incr = 0;
208 
	}
209 
	wait++;
210 
	if(wait == 2){
211 
		wait = 0;
212 
		move++;
213 
		if(move == 15) move = 0;
214 
	}
12 nishi 215 
	for(i = 0; i < 3 * 1024 / 16; i++);
7 nishi 216 
 
217 
skip:
218 
	if((k = inp(text_kbd_data)) == 0) goto move_bar;
219 
	while(inp(text_kbd_data) != 0);
220 
 
221 
	if(vdp_addr == -1){
222 
		outp(vdp_addr, 0xf0);
223 
		outp(vdp_addr, 0x87);
224 
	}
225 
 
8 nishi 226 
	basic();
3 nishi 227 
}
1 nishi 228 
 
2 nishi 229 
void init_cards(void){
1 nishi 230 
	int i;
231 
	int port = 2;
2 nishi 232 
	for(i = 0; i < 256 / 3; i++){
1 nishi 233 
		int t = inp(port);
2 nishi 234 
		if(t != 0){
8 nishi 235 
			video_card(t, port);
9 nishi 236 
			sound_card(t, port);
237 
			math_card(t, port);
8 nishi 238 
			text_card(t, port);
12 nishi 239 
			debug_card(t, port);
1 nishi 240 
		}
241 
		port += 3;
242 
	}
243 
}