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1 nishi 1 
/* $Id: shiroi.c 10 2024-08-29 01:39:27Z nishi $ */
2 
 
8 nishi 3 
#include "io.h"
9 nishi 4 
#include "math.h"
5 
#include "sound.h"
8 nishi 6 
#include "video.h"
7 
#include "text.h"
8 
#include "char.h"
9 
 
1 nishi 10 
void init_cards(void);
7 nishi 11 
void basic(void);
1 nishi 12 
 
8 nishi 13 
extern short vdp_addr;
14 
extern short vdp_data;
15 
extern short vdg_addr;
16 
extern short vdg_data;
7 nishi 17 
 
8 nishi 18 
extern short psg_addr;
19 
extern short psg_data;
7 nishi 20 
 
8 nishi 21 
extern short fpu_stack;
22 
extern short fpu_command;
7 nishi 23 
 
8 nishi 24 
extern short text_kbd_data;
1 nishi 25 
 
8 nishi 26 
extern int scrwidth;
27 
extern int scrheight;
1 nishi 28 
 
8 nishi 29 
extern char caps;
7 nishi 30 
 
4 nishi 31 
unsigned char keylist[13 * 4];
32 
unsigned char keylist_caps[13 * 4];
33 
 
2 nishi 34 
void main(void){
1 nishi 35 
	int i;
36 
 
4 nishi 37 
/*
38 
 * / 1 2 3 4 5 6 7 8 9 10 11 12 13
7 nishi 39 
 * 1 1 2 3 4 5 6 7 8 9 0  -  =  bs
4 nishi 40 
 * 2 q w e r t y u i o p  [  ]  rt
41 
 * 3 a s d f g h j k l ;  '  \  cl
42 
 * 4 z x c v b n m , . /  sp
5 nishi 43 
 *
44 
 * When Caps Lock
45 
 *
46 
 * / 1 2 3 4 5 6 7 8 9 10 11 12 13
7 nishi 47 
 * 1 ! @ # $ % ^ & * ( )  _  +  bs
5 nishi 48 
 * 2 Q W E R T Y U I O P  {  }  rt
49 
 * 3 A S D F G H J K L :  "  |  cl
50 
 * 4 Z X C V B N M < > ?  sp
4 nishi 51 
 */
52 
	const char* keys;
53 
 
7 nishi 54 
	keys = "1234567890-=\x08";
4 nishi 55 
	for(i = 0; i < 13; i++){
56 
		keylist[i] = keys[i];
57 
	}
58 
	keys = "qwertyuiop[]\n";
59 
	for(i = 0; i < 13; i++){
60 
		keylist[13 + i] = keys[i];
61 
	}
62 
	keys = "asdfghjkl;'\\!";
63 
	for(i = 0; i < 13; i++){
64 
		keylist[26 + i] = keys[i];
65 
	}
66 
	keys = "zxcvbnm,./    ";
67 
	for(i = 0; i < 13; i++){
68 
		keylist[39 + i] = keys[i];
69 
	}
70 
 
7 nishi 71 
	keys = "!@#$%^&*()_+\x08";
4 nishi 72 
	for(i = 0; i < 13; i++){
73 
		keylist_caps[i] = keys[i];
74 
	}
75 
	keys = "QWERTYUIOP{}\n";
76 
	for(i = 0; i < 13; i++){
77 
		keylist_caps[13 + i] = keys[i];
78 
	}
79 
	keys = "ASDFGHJKL:\"|!";
80 
	for(i = 0; i < 13; i++){
81 
		keylist_caps[26 + i] = keys[i];
82 
	}
83 
	keys = "ZXCVBNM<>?    ";
84 
	for(i = 0; i < 13; i++){
85 
		keylist_caps[39 + i] = keys[i];
86 
	}
87 
 
1 nishi 88 
	vdp_addr = -1;
7 nishi 89 
	vdg_addr = -1;
1 nishi 90 
	psg_addr = -1;
7 nishi 91 
	fpu_stack = -1;
3 nishi 92 
	text_kbd_data = -1;
1 nishi 93 
 
94 
	init_cards();
95 
 
8 nishi 96 
#ifdef ONLY_VDP
97 
	if(vdp_addr == -1){
98 
#else
7 nishi 99 
	if(vdp_addr == -1 && vdg_addr == -1){
8 nishi 100 
#endif
1 nishi 101 
		int i;
2 nishi 102 
		for(i = 0; i < 3; i++){
1 nishi 103 
			_beep(3L * 1024);
104 
			unsigned long j;
2 nishi 105 
			for(j = 0; j < 3L * 1024; j++);
1 nishi 106 
		}
2 nishi 107 
		while(1);
1 nishi 108 
	}
109 
 
8 nishi 110 
	video_init();
111 
	text_init();
1 nishi 112 
 
7 nishi 113 
	clear();
1 nishi 114 
 
10 nishi 115 
	beep();
1 nishi 116 
 
3 nishi 117 
	if(text_kbd_data == -1){
118 
		putstr("Text  Card Mark I not present\r\n");
119 
		putstr("Text  Card Mark I is required to use the BASIC\r\n");
120 
		putstr("Halted. Get one.\r\n");
121 
		while(1);
122 
	}
7 nishi 123 
	if(fpu_stack == -1){
124 
		putstr("Math  Card Mark I not present\r\n");
125 
		putstr("Math  Card Mark I is required to use the BASIC\r\n");
126 
		putstr("Halted. Get one.\r\n");
127 
		while(1);
128 
	}
1 nishi 129 
 
7 nishi 130 
	int incr;
131 
	int move = 0;
132 
	char k;
133 
	int wait = 0;
134 
 
135 
	const char* title;
136 
 
8 nishi 137 
#ifdef ONLY_VDP
7 nishi 138 
	if(vdp_addr != -1){
8 nishi 139 
#else
140 
	if(vdp_addr != -1 || vdg_addr != -1){
141 
#endif
7 nishi 142 
		title = "Shiroi Microcomputer";
8 nishi 143 
		setvramaddr(scrwidth / 2 - strlen(title) / 2 + mull((scrheight - 9) / 2 - 1 + 3, scrwidth));
144 
		for(i = 0; title[i] != 0; i++) vramchar(title[i]);
7 nishi 145 
 
8 nishi 146 
		if(vdp_addr != -1){
147 
			title = "\x82 2024 Nishi";
148 
		}else if(vdg_addr != -1){
149 
			title = "(C) 2024 Nishi";
150 
		}
151 
		setvramaddr(scrwidth / 2 - strlen(title) / 2 + mull(scrheight - 2, scrwidth));
152 
		for(i = 0; title[i] != 0; i++) vramchar(title[i]);
7 nishi 153 
 
154 
		title = "Press any key to begin";
8 nishi 155 
		setvramaddr(scrwidth / 2 - strlen(title) / 2 + mull((scrheight - 9) / 2 + 1 + 3, scrwidth));
156 
		for(i = 0; title[i] != 0; i++) vramchar(title[i]);
7 nishi 157 
	}
158 
 
159 
move_bar:
160 
	if(vdp_addr != -1){
8 nishi 161 
	}
162 
#ifndef ONLY_VDP
163 
	else if(vdg_addr != -1){
7 nishi 164 
		goto skip;
165 
	}
8 nishi 166 
#endif
7 nishi 167 
	incr = move;
168 
	for(i = 0; i < 16; i++){
169 
		int j;
170 
		for(j = 0; j < 3; j++){
171 
			int p = incr;
172 
			if(p >= 15) p = p - 15;
173 
			if(wait == 0){
8 nishi 174 
				setvramaddr(i * 2 + j * 32);
175 
				_vramchar((p + 1) * 8 + 0x80);
176 
				_vramchar((p + 1) * 8 + 0x80);
177 
				setvramaddr(i * 2 + 32 * 20 - j * 32);
178 
				_vramchar((p + 1) * 8 + 0x80);
179 
				_vramchar((p + 1) * 8 + 0x80);
7 nishi 180 
			}else{
181 
				if(i * 2 - 1 < 0){
8 nishi 182 
					setvramaddr(i * 2 + j * 32);
183 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 184 
				}else{
8 nishi 185 
					setvramaddr(i * 2 + j * 32 - 1);
186 
					_vramchar((p + 1) * 8 + 0x80);
187 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 188 
				}
189 
				if(i * 2 - 1 < 0){
8 nishi 190 
					setvramaddr(i * 2 + 32 * 20 - j * 32);
191 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 192 
				}else{
8 nishi 193 
					setvramaddr(i * 2 + 32 * 20 - j * 32 - 1);
194 
					_vramchar((p + 1) * 8 + 0x80);
195 
					_vramchar((p + 1) * 8 + 0x80);
7 nishi 196 
				}
197 
			}
198 
		}
199 
		incr++;
200 
		if(incr == 15) incr = 0;
201 
	}
202 
	wait++;
203 
	if(wait == 2){
204 
		wait = 0;
205 
		move++;
206 
		if(move == 15) move = 0;
207 
	}
208 
	for(i = 0; i < 3 * 1024; i++);
209 
 
210 
skip:
211 
	if((k = inp(text_kbd_data)) == 0) goto move_bar;
212 
	while(inp(text_kbd_data) != 0);
213 
 
214 
	if(vdp_addr == -1){
215 
		outp(vdp_addr, 0xf0);
216 
		outp(vdp_addr, 0x87);
217 
	}
218 
 
8 nishi 219 
	basic();
3 nishi 220 
}
1 nishi 221 
 
2 nishi 222 
void init_cards(void){
1 nishi 223 
	int i;
224 
	int port = 2;
2 nishi 225 
	for(i = 0; i < 256 / 3; i++){
1 nishi 226 
		int t = inp(port);
2 nishi 227 
		if(t != 0){
8 nishi 228 
			video_card(t, port);
9 nishi 229 
			sound_card(t, port);
230 
			math_card(t, port);
8 nishi 231 
			text_card(t, port);
1 nishi 232 
		}
233 
		port += 3;
234 
	}
235 
}