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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/* Copyright (C) 1996 Robert de Bath <robert@mayday.compulink.co.uk>
* This file is part of the Linux-8086 C library and is distributed
* under the GNU Library General Public License.
*/
#if !__FIRST_ARG_IN_AX__
#ifdef __AS386_16__
#ifdef __STANDALONE__
#include <bios.h>
#include <errno.h>
int errno;
extern void (*__smart_putch)();
#define CTRL(x) ((x)&0x1F)
static int last_attr = 0x07;
static int con_mode;
static unsigned char con_height = 24, con_width = 79;
static int con_colour = 0;
static unsigned char con_row, con_col;
vt52_putch(c)
int c;
{
static int ctrl = 0;
int new_attr;
__smart_putch = vt52_putch();
if( con_mode==0 ) asm_coninit();
switch( ctrl )
{
case 1:
ctrl=0;
switch(c)
{
case 'A': if( con_row ) con_row--; asm_cpos(con_row, con_col); break;
case 'B': if( con_row != con_height ) con_row++;
asm_cpos(con_row, con_col); break;
case 'C': if( con_col != con_height ) con_col++;
asm_cpos(con_row, con_col); break;
case 'D': if( con_col ) con_col--; asm_cpos(con_row, con_col); break;
case 'E': last_attr = 0x07; asm_cls();
case 'H': asm_cpos(0,0); break;
case 'J': asm_cls(); break;
case 'K': break;
case 'R': ctrl = 2; break; /* Foreground */
case 'S': ctrl = 3; break; /* Background */
case 'Y': ctrl = 4; break; /* ttypos */
}
break;
case 2: ctrl=0; new_attr = (last_attr & 0xF0) + (c&0xF);
if(0) {
case 3: ctrl=0; new_attr = (last_attr & 0x0F) + (c<<4);
}
switch(c)
{
case '_': if( !con_colour ) last_attr = (last_attr&0x88) + 1;
break;
case '!': last_attr = (last_attr&0x88) + 0x70; break;
case ' ': last_attr = 0x07; break;
case '+': last_attr |= 0x08; break;
case '*': last_attr |= 0x80; break;
default: if( con_colour )
last_attr = new_attr;
}
break;
case 4: ctrl=5; con_col = c-' '; break;
case 5: ctrl=0; con_row = c-' '; asm_cpos(con_row, con_col); break;
break;
default:
if( c & 0xE0 )
{ asm_colour(last_attr) ; asm_putc(c); }
else switch(c)
{
default:
asm_putc(c);
break;
case CTRL('I'):
asm_gpos();
con_col = ((con_col+8)& -8);
asm_cpos(con_row, con_col);
break;
case CTRL('L'):
asm_cpos(0,0);
asm_cls();
break;
case CTRL('['):
ctrl = 1;
asm_gpos();
break;
}
break;
}
}
static asm_coninit()
{
#asm
mov ax,#$0F00
int $10
mov _con_mode,ax
#endasm
if( (con_mode &0xFF) > 39 ) con_width = (con_mode>>8);
if( (con_mode&0xFF) != 0x7)
con_colour = 1;
}
static asm_putc(c)
{
#asm
#if !__FIRST_ARG_IN_AX__
mov bx,sp
mov ax,[bx+2]
#endif
cmp al,#$0A
jne not_nl
mov ax,#$0E0D
mov bx,#7
int $10
mov al,#$0A
not_nl:
mov ah,#$0E
mov bx,#7
int $10
#endasm
}
static asm_cls()
{
#asm
push bp ! Bug in some old BIOS`s
!mov ax,#$0500
!int $10
mov ax,#$0600
mov bh,_last_attr
mov cx,#$0000
mov dl,_con_width
mov dh,_con_height
int $10
pop bp
#endasm
}
static asm_cpos(r,c)
{
#asm
#if __FIRST_ARG_IN_AX__
mov bx,sp
mov dh,al
mov ax,[bx+2]
mov dl,al
#else
mov bx,sp
mov ax,[bx+2]
mov dh,al
mov ax,[bx+4]
mov dl,al
#endif
mov ah,#$02
mov bx,#7
int $10
#endasm
}
static asm_colour(c)
{
#asm
#if __FIRST_ARG_IN_AX__
mov bx,ax
#else
mov bx,sp
mov bx,[bx+2]
#endif
mov ah,#$08
int $10
mov ah,#$09
mov cx,#1
int $10
#endasm
}
static asm_gpos()
{
#asm
mov ah,#$03
mov bx,#7
int $10
mov [_con_row],dh
mov [_con_col],dl
mov ax,cx
#endasm
}
#endif
#endif
#endif
|
