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Rev | Author | Line No. | Line |
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1 | ha | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; BOOTCODE.INC ;; |
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4 | ;; ;; |
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29 | halyavin | 5 | ;; KolibriOS 16-bit loader, ;; |
6 | ;; based on bootcode for MenuetOS ;; |
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1 | ha | 7 | ;; ;; |
8 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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9 | |||
10 | |||
11 | |||
12 | ;========================================================================== |
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13 | ; |
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14 | ; 16 BIT FUNCTIONS |
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15 | ; |
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16 | ;========================================================================== |
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17 | |||
29 | halyavin | 18 | putchar: |
19 | ; in: al=character |
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76 | mario79 | 20 | mov ah, 0Eh |
21 | mov bh, 0 |
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22 | int 10h |
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23 | ret |
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1 | ha | 24 | |
29 | halyavin | 25 | print: |
26 | ; in: si->string |
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76 | mario79 | 27 | mov al, 186 |
28 | call putchar |
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29 | mov al, ' ' |
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30 | call putchar |
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1 | ha | 31 | |
29 | halyavin | 32 | printplain: |
33 | ; in: si->string |
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76 | mario79 | 34 | pusha |
35 | lodsb |
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29 | halyavin | 36 | @@: |
76 | mario79 | 37 | call putchar |
38 | lodsb |
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39 | cmp al, 0 |
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40 | jnz @b |
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41 | popa |
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42 | ret |
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1 | ha | 43 | |
29 | halyavin | 44 | ; Now int 16 is used for keyboard support. |
45 | ; This is shorter, simpler and more reliable. |
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46 | if 0 |
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1 | ha | 47 | getkey: push ecx |
48 | push edx |
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49 | add ebx,0x0101 |
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50 | xor eax,eax |
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51 | |||
52 | gk1: |
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53 | in al,0x60 |
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54 | mov cl,al |
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55 | gk0: |
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56 | in al,0x60 |
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57 | cmp al,cl |
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58 | je gk0 |
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59 | cmp ax,11 |
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60 | jg gk0 |
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61 | gk0_1: |
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62 | mov cl,al |
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63 | |||
64 | ; add al,47 |
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65 | ; mov [ds:keyinbs-0x10000],al |
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66 | ; mov si,keyinbs-0x10000 |
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67 | ; call printplain |
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68 | |||
69 | gk12: |
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70 | in al,0x60 |
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71 | cmp al,cl |
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72 | je gk12 |
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73 | cmp ax,240 |
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74 | jne gk13 |
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75 | mov al,cl |
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76 | jmp gk14 |
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77 | gk13: |
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78 | add cl,128 |
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79 | cmp al,cl |
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80 | jne gk1 |
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81 | sub al,128 |
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82 | gk14: |
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83 | |||
84 | movzx edx,bl |
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85 | cmp eax,edx |
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86 | jb gk1 |
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87 | movzx edx,bh |
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88 | cmp eax,edx |
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89 | jg gk1 |
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90 | test ebx,0x010000 |
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91 | jnz gk3 |
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92 | mov cx,0x1000 |
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93 | mov dx,cx |
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94 | add eax,47 |
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95 | mov cx,ax |
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96 | cmp cx,58 |
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97 | jb gk_nozero |
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98 | sub cx,10 |
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99 | gk_nozero: |
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100 | mov [ds:keyin-0x10000],cl |
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101 | mov si,keyin-0x10000 |
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102 | call printplain |
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103 | gk3: |
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104 | sub eax,48 |
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105 | pop edx |
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106 | pop ecx |
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107 | ret |
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29 | halyavin | 108 | end if |
1 | ha | 109 | |
29 | halyavin | 110 | getkey: |
111 | ; get number in range [bl,bh] (bl,bh in ['0'..'9']) |
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112 | ; in: bx=range |
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113 | ; out: ax=digit (1..9, 10 for 0) |
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76 | mario79 | 114 | mov ah, 0 |
115 | int 16h |
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116 | cmp al, bl |
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117 | jb getkey |
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118 | cmp al, bh |
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119 | ja getkey |
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120 | push ax |
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121 | call putchar |
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122 | pop ax |
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123 | and ax, 0Fh |
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124 | jnz @f |
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125 | mov al, 10 |
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29 | halyavin | 126 | @@: |
76 | mario79 | 127 | ret |
1 | ha | 128 | |
29 | halyavin | 129 | setcursor: |
130 | ; in: dl=column, dh=row |
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76 | mario79 | 131 | mov ah, 2 |
132 | mov bh, 0 |
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133 | int 10h |
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134 | ret |
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29 | halyavin | 135 | |
136 | macro _setcursor row,column |
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137 | { |
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76 | mario79 | 138 | mov dx, row*256 + column |
139 | call setcursor |
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29 | halyavin | 140 | } |
141 | |||
40 | halyavin | 142 | pagetable_set: |
103 | halyavin | 143 | ;eax - physical address |
144 | ;es:di - page table |
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145 | ;ecx - number of pages to map |
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76 | mario79 | 146 | or al, 7 |
40 | halyavin | 147 | @@: |
76 | mario79 | 148 | stosd |
149 | add eax, 1000h |
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150 | loop @b |
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151 | ret |
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40 | halyavin | 152 | |
134 | diamond | 153 | boot_read_floppy: |
154 | push si |
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155 | xor si, si |
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156 | mov ah, 2 ; read |
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157 | @@: |
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158 | push ax |
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159 | int 0x13 |
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160 | pop ax |
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161 | jnc @f |
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162 | inc si |
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163 | cmp si, 10 |
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164 | jb @b |
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165 | mov si, badsect-0x10000 |
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166 | sayerr_plain: |
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167 | call printplain |
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168 | jmp $ |
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169 | @@: |
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170 | pop si |
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171 | ret |
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172 | |||
29 | halyavin | 173 | ; 16-bit data |
174 | ; videomodes table |
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82 | halyavin | 175 | org $+0x10000 |
29 | halyavin | 176 | gr_table: |
76 | mario79 | 177 | dw 0x112+0100000000000000b , 640 , 480 ; 1 |
178 | dw 0x115+0100000000000000b , 800 , 600 ; 2 |
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179 | dw 0x118+0100000000000000b , 1024 , 768 ; 3 |
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180 | dw 0x11B+0100000000000000b , 1280 , 1024 ; 4 |
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181 | dw 0x112 , 640 , 480 ; 5 |
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182 | dw 0x115 , 800 , 600 ; 6 |
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183 | dw 0x118 , 1024 , 768 ; 7 |
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184 | dw 0x11B , 1280 ,1024 ; 8 |
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89 | diamond | 185 | dw 0x13, 640, 480 ; 9 |
76 | mario79 | 186 | dw 0x12, 640, 480 ; 0 |
29 | halyavin | 187 | |
188 | ; table for move to extended memory (int 15h, ah=87h) |
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189 | movedesc: |
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190 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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191 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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192 | |||
193 | db 0xff,0xff,0x0,0xa0,0x00,0x93,0x0,0x0 |
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194 | db 0xff,0xff,0x0,0x00,0x10,0x93,0x0,0x0 |
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195 | |||
196 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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197 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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198 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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199 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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82 | halyavin | 200 | org $-0x10000 |
29 | halyavin | 201 | |
1 | ha | 202 | ;========================================================================= |
203 | ; |
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204 | ; 16 BIT CODE |
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205 | ; |
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206 | ;========================================================================= |
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207 | |||
208 | |||
209 | start_of_code: |
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76 | mario79 | 210 | cld |
29 | halyavin | 211 | ; \begin{diamond}[02.12.2005] |
76 | mario79 | 212 | cmp ax, 'KL' |
213 | jnz @f |
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214 | mov word [cs:cfgmanager.loader_block-0x10000], si |
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215 | mov word [cs:cfgmanager.loader_block+2-0x10000], ds |
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29 | halyavin | 216 | @@: |
217 | ; \end{diamond}[02.12.2005] |
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1 | ha | 218 | |
29 | halyavin | 219 | ; set up stack |
76 | mario79 | 220 | mov ax, 3000h |
221 | mov ss, ax |
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222 | mov sp, 0EC00h |
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29 | halyavin | 223 | ; set up segment registers |
76 | mario79 | 224 | push cs |
225 | pop ds |
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226 | push cs |
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227 | pop es |
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1 | ha | 228 | |
29 | halyavin | 229 | ; set videomode |
76 | mario79 | 230 | mov ax, 3 |
1 | ha | 231 | int 0x10 |
232 | |||
134 | diamond | 233 | if lang eq ru |
1 | ha | 234 | ; Load & set russian VGA font (RU.INC) |
235 | mov bp,RU_FNT1-10000h ; RU_FNT1 - First part |
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236 | mov bx,1000h ; 768 bytes |
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237 | mov cx,30h ; 48 symbols |
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238 | mov dx,80h ; 128 - position of first symbol |
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239 | mov ax,1100h |
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240 | int 10h |
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241 | |||
242 | mov bp,RU_FNT2-10000h ; RU_FNT2 -Second part |
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243 | mov bx,1000h ; 512 bytes |
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244 | mov cx,20h ; 32 symbols |
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245 | mov dx,0E0h ; 224 - position of first symbol |
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246 | mov ax,1100h |
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247 | int 10h |
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248 | ; End set VGA russian font |
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134 | diamond | 249 | end if |
1 | ha | 250 | |
29 | halyavin | 251 | ; draw frames |
76 | mario79 | 252 | push 0xb800 |
253 | pop es |
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254 | xor di, di |
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29 | halyavin | 255 | ; mov si,d80x25-0x10000 |
256 | ; mov cx,80*25 |
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257 | ; mov ah,1*16+15 |
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258 | ; dfl1: |
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259 | ; lodsb |
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260 | ; stosw |
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261 | ; loop dfl1 |
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76 | mario79 | 262 | mov ah, 1*16+15 |
29 | halyavin | 263 | ; draw top |
76 | mario79 | 264 | mov si, d80x25_top - 0x10000 |
265 | mov cx, d80x25_top_num * 80 |
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29 | halyavin | 266 | @@: |
76 | mario79 | 267 | lodsb |
268 | stosw |
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269 | loop @b |
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29 | halyavin | 270 | ; draw spaces |
76 | mario79 | 271 | mov si, space_msg - 0x10000 |
272 | mov cx, 25 - d80x25_top_num - d80x25_bottom_num |
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29 | halyavin | 273 | dfl1: |
76 | mario79 | 274 | push cx |
275 | push si |
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276 | mov cx, 80 |
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29 | halyavin | 277 | @@: |
76 | mario79 | 278 | lodsb |
279 | stosw |
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280 | loop @b |
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281 | pop si |
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282 | pop cx |
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283 | loop dfl1 |
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29 | halyavin | 284 | ; draw bottom |
76 | mario79 | 285 | mov si, d80x25_bottom - 0x10000 |
286 | mov cx, d80x25_bottom_num * 80 |
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29 | halyavin | 287 | @@: |
76 | mario79 | 288 | lodsb |
289 | stosw |
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290 | loop @b |
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1 | ha | 291 | |
76 | mario79 | 292 | mov byte [space_msg-0x10000+80], 0 ; now space_msg is null terminated |
1 | ha | 293 | |
76 | mario79 | 294 | _setcursor d80x25_top_num,0 |
1 | ha | 295 | |
296 | |||
297 | ; TEST FOR 386+ |
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298 | |||
76 | mario79 | 299 | mov bx, 0x4000 |
1 | ha | 300 | pushf |
301 | pop ax |
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302 | mov dx,ax |
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29 | halyavin | 303 | xor ax,bx |
1 | ha | 304 | push ax |
305 | popf |
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306 | pushf |
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307 | pop ax |
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29 | halyavin | 308 | and ax,bx |
309 | and dx,bx |
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1 | ha | 310 | cmp ax,dx |
311 | jnz cpugood |
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312 | mov si,not386-0x10000 |
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40 | halyavin | 313 | sayerr: |
1 | ha | 314 | call print |
315 | jmp $ |
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316 | cpugood: |
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317 | |||
29 | halyavin | 318 | ; set up esp |
76 | mario79 | 319 | movzx esp, sp |
1 | ha | 320 | |
321 | ; FLUSH 8042 KEYBOARD CONTROLLER |
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322 | |||
323 | ;// mike.dld [ |
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324 | ; mov al,0xED |
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325 | ; out 0x60,al |
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326 | ; or cx,-1 |
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327 | ; @@: |
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328 | ; in al,0x64 |
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329 | ; test al,2 |
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330 | ; jz @f |
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331 | ; loop @b |
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332 | ; @@: |
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333 | ; mov al,0 |
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334 | ; out 0x60,al |
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335 | ; or cx,-1 |
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336 | ; @@: |
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337 | ; in al,0x64 |
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338 | ; test al,2 |
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339 | ; jz @f |
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340 | ; loop @b |
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341 | ; @@: |
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342 | ;// mike.dld ] |
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343 | |||
344 | ; mov ecx,10000 |
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345 | ; fl1: |
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346 | ; in al,0x64 |
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347 | ; loop fl1 |
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348 | ; test al,1 |
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349 | ; jz fl2 |
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350 | ; in al,0x60 |
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351 | ; jmp fl1 |
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352 | ; fl2: |
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353 | |||
354 | ;**************************************************************** |
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355 | ; The function is modified Mario79 |
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356 | ;***************************************************************** |
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357 | ; wait_kbd: ; variant 1 |
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358 | ; mov cx,2500h ;çàäåðæêà ïîðÿäêà 10 ìñåê |
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359 | ; test_kbd: |
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360 | ; in al,64h ;÷èòàåì ñîñòîÿíèå êëàâèàòóðû |
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361 | ; test al,2 ;ïðîâåðêà áèòà ãîòîâíîñòè |
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362 | ; loopnz test_kbd |
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363 | |||
364 | mov al,0xf6 ; Ñáðîñ êëàâèàòóðû, ðàçðåøèòü ñêàíèðîâàíèå |
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365 | out 0x60,al |
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29 | halyavin | 366 | xor cx,cx |
1 | ha | 367 | wait_loop: ; variant 2 |
368 | ; reading state of port of 8042 controller |
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369 | in al,64h |
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370 | and al,00000010b ; ready flag |
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371 | ; wait until 8042 controller is ready |
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372 | loopnz wait_loop |
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373 | |||
76 | mario79 | 374 | ; --------------- APM --------------------- |
375 | push 0 |
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376 | pop es |
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377 | mov word [es : 0x9044], 0 ; ver = 0.0 (APM not found) |
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378 | mov ax, 0x5300 |
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379 | xor bx, bx |
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380 | int 0x15 |
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381 | jc apm_end ; APM not found |
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382 | test cx, 2 |
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383 | jz apm_end ; APM 32-bit protected-mode interface not supported |
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384 | mov [es : 0x9044], ax ; Save APM Version |
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385 | mov [es : 0x9046], cx ; Save APM flags |
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386 | |||
387 | ; Write APM ver ---- |
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82 | halyavin | 388 | and ax, 0xf0f |
76 | mario79 | 389 | add ax, '00' |
82 | halyavin | 390 | mov si, msg_apm - 0x10000 |
391 | mov [si + 5], ah |
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392 | mov [si + 7], al |
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76 | mario79 | 393 | _setcursor 0, 3 |
394 | call printplain |
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395 | _setcursor d80x25_top_num,0 |
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396 | ; ------------------ |
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397 | |||
398 | mov ax, 0x5304 ; Disconnect interface |
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399 | xor bx, bx |
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400 | int 0x15 |
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401 | mov ax, 0x5303 ; Connect 32 bit mode interface |
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402 | xor bx, bx |
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403 | int 0x15 |
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404 | ; init selectors |
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405 | movzx eax, ax ; real-mode segment base address of protected-mode 32-bit code segment |
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406 | shl eax, 4 |
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407 | mov [apm_code_32 - 0x10000 + 2], ax |
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408 | shr eax, 16 |
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409 | mov [apm_code_32 - 0x10000 + 4], al |
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410 | movzx ecx, cx ; real-mode segment base address of protected-mode 16-bit code segment |
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411 | shl ecx, 4 |
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412 | mov [apm_code_16 - 0x10000 + 2], cx |
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413 | shr ecx, 16 |
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414 | mov [apm_code_16 - 0x10000 + 4], cl |
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415 | movzx edx, dx ; real-mode segment base address of protected-mode 16-bit data segment |
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416 | shl edx, 4 |
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417 | mov [apm_data_16 - 0x10000 + 2], dx |
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418 | shr edx, 16 |
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419 | mov [apm_data_16 - 0x10000 + 4], dl |
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420 | mov [es : 0x9040], ebx ; offset of APM entry point |
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421 | apm_end: |
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422 | ; ----------------------------------------- |
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423 | |||
1 | ha | 424 | ; DISPLAY VESA INFORMATION |
425 | |||
76 | mario79 | 426 | push 0 |
427 | pop es |
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1 | ha | 428 | mov ax,0x4f00 |
429 | mov di,0xa000 |
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430 | int 0x10 |
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431 | cmp ax,0x004f |
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76 | mario79 | 432 | mov si, novesa-0x10000 |
433 | jnz @f |
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1 | ha | 434 | mov ax,[es:di+4] |
435 | add ax,'0'*256+'0' |
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76 | mario79 | 436 | mov si,vervesa-0x10000 |
40 | halyavin | 437 | mov [si+vervesa_off], ah |
438 | mov [si+vervesa_off+2], al |
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29 | halyavin | 439 | @@: call print |
1 | ha | 440 | |
29 | halyavin | 441 | ; \begin{diamond}[30.11.2005] |
442 | cfgmanager: |
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443 | ; settings: |
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444 | ; a) preboot_graph = graphical mode |
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445 | ; preboot_gprobe = probe this mode? |
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446 | ; b) preboot_mtrr = use hardware acceleration? |
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447 | ; c) preboot_vrrm = use VRR? |
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448 | ; d) preboot_device = from what boot? |
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76 | mario79 | 449 | mov di, preboot_graph-0x10000 |
29 | halyavin | 450 | ; check bootloader block |
76 | mario79 | 451 | cmp [.loader_block-0x10000], 0 |
452 | jz .noloaderblock |
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453 | les bx, [.loader_block-0x10000] |
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454 | cmp byte [es:bx], 1 |
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455 | mov si, loader_block_error-0x10000 |
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456 | jnz sayerr |
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457 | test byte [es:bx+1], 1 |
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458 | jz @f |
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29 | halyavin | 459 | ; image in memory present |
76 | mario79 | 460 | cmp [di+preboot_device-preboot_graph], 0 |
461 | jnz @f |
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462 | mov [di+preboot_device-preboot_graph], 3 |
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29 | halyavin | 463 | @@: |
464 | .noloaderblock: |
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465 | ; determine default settings |
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76 | mario79 | 466 | mov [.bSettingsChanged-0x10000], 0 |
467 | cmp byte [di], 0 |
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468 | jnz .preboot_gr_end |
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469 | mov [di+preboot_gprobe-preboot_graph], 0 |
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470 | mov al, [vervesa+vervesa_off-0x10000] |
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471 | cmp al, 'x' |
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472 | jz .novesa |
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473 | cmp al, '1' |
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474 | jz .vesa12 |
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475 | mov [di+preboot_gprobe-preboot_graph], 2 |
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476 | mov al, 3 |
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477 | jmp @f |
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29 | halyavin | 478 | .vesa12: |
76 | mario79 | 479 | mov al, 7 |
480 | jmp @f |
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29 | halyavin | 481 | .novesa: |
76 | mario79 | 482 | mov al, 10 |
29 | halyavin | 483 | @@: |
76 | mario79 | 484 | mov [di], al |
29 | halyavin | 485 | .preboot_gr_end: |
76 | mario79 | 486 | cmp [di+preboot_mtrr-preboot_graph], 1 |
487 | adc [di+preboot_mtrr-preboot_graph], 0 |
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488 | cmp [di+preboot_vrrm-preboot_graph], 1 |
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489 | adc [di+preboot_vrrm-preboot_graph], 0 |
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490 | cmp [di+preboot_device-preboot_graph], 1 |
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491 | adc [di+preboot_device-preboot_graph], 0 |
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29 | halyavin | 492 | ; notify user |
76 | mario79 | 493 | mov si, linef-0x10000 |
494 | call print |
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495 | mov si, start_msg-0x10000 |
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496 | call print |
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497 | mov si, time_msg-0x10000 |
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498 | call print |
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29 | halyavin | 499 | ; get start time |
76 | mario79 | 500 | call .gettime |
501 | mov [.starttime-0x10000], eax |
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82 | halyavin | 502 | mov word [.timer-0x10000], .newtimer |
76 | mario79 | 503 | mov word [.timer-0x10000+2], cs |
29 | halyavin | 504 | .printcfg: |
76 | mario79 | 505 | _setcursor 9,0 |
506 | mov si, current_cfg_msg-0x10000 |
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507 | call print |
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508 | mov si, curvideo_msg-0x10000 |
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509 | call print |
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510 | mov al, [preboot_graph-0x10000] |
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511 | cmp al, 8 |
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512 | ja .pnovesa |
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513 | mov dl, al |
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514 | and eax, 3 |
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515 | mov si, [modes_msg-0x10000+eax*2] |
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516 | call printplain |
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517 | mov si, modevesa20-0x10000 |
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518 | cmp dl, 4 |
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519 | jbe @f |
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520 | mov si, modevesa12-0x10000 |
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29 | halyavin | 521 | @@: |
76 | mario79 | 522 | call printplain |
523 | cmp dl, 4 |
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524 | ja .x |
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525 | mov si, probeno_msg-0x10000 |
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526 | cmp [preboot_gprobe-0x10000], 2 |
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527 | jnz @f |
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528 | mov si, probeok_msg-0x10000 |
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29 | halyavin | 529 | @@: |
76 | mario79 | 530 | call printplain |
29 | halyavin | 531 | .x: |
76 | mario79 | 532 | jmp .c |
29 | halyavin | 533 | .pnovesa: |
76 | mario79 | 534 | cmp al, 9 |
535 | mov si, mode9-0x10000 |
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536 | jz @b |
||
537 | mov si, mode10-0x10000 |
||
538 | jmp @b |
||
29 | halyavin | 539 | .c: |
76 | mario79 | 540 | mov si, linef-0x10000 |
541 | call printplain |
||
542 | mov si, mtrr_msg-0x10000 |
||
543 | cmp [preboot_mtrr-0x10000], 1 |
||
544 | call .say_on_off |
||
545 | mov si, vrrm_msg-0x10000 |
||
546 | cmp [preboot_vrrm-0x10000], 1 |
||
547 | call .say_on_off |
||
548 | mov si, preboot_device_msg-0x10000 |
||
549 | call print |
||
550 | mov al, [preboot_device-0x10000] |
||
551 | and eax, 3 |
||
552 | mov si, [preboot_device_msgs-0x10000+eax*2] |
||
553 | call printplain |
||
29 | halyavin | 554 | .wait: |
76 | mario79 | 555 | _setcursor 25,0 ; out of screen |
34 | halyavin | 556 | ; set timer interrupt handler |
76 | mario79 | 557 | cli |
558 | push 0 |
||
559 | pop es |
||
560 | mov eax, [es:8*4] |
||
561 | mov [.oldtimer-0x10000], eax |
||
562 | mov eax, [.timer-0x10000] |
||
563 | mov [es:8*4], eax |
||
564 | sti |
||
29 | halyavin | 565 | ; wait for keypressed |
76 | mario79 | 566 | mov ah, 0 |
567 | int 16h |
||
568 | push ax |
||
29 | halyavin | 569 | ; restore timer interrupt |
76 | mario79 | 570 | push 0 |
571 | pop es |
||
572 | mov eax, [.oldtimer-0x10000] |
||
573 | mov [es:8*4], eax |
||
574 | mov [.timer-0x10000], eax |
||
575 | _setcursor 7,0 |
||
576 | mov si, space_msg-0x10000 |
||
577 | call printplain |
||
578 | pop ax |
||
29 | halyavin | 579 | ; switch on key |
76 | mario79 | 580 | cmp al, 13 |
581 | jz .continue |
||
582 | or al, 20h |
||
583 | cmp al, 'a' |
||
584 | jz .change_a |
||
585 | cmp al, 'b' |
||
586 | jz .change_b |
||
587 | cmp al, 'c' |
||
588 | jz .change_c |
||
589 | cmp al, 'd' |
||
590 | jnz .wait |
||
591 | _setcursor 15,0 |
||
592 | mov si,bdev-0x10000 |
||
593 | call print |
||
594 | mov bx,'13' |
||
595 | call getkey |
||
596 | mov [preboot_device-0x10000], al |
||
597 | _setcursor 13,0 |
||
29 | halyavin | 598 | .d: |
76 | mario79 | 599 | mov [.bSettingsChanged-0x10000], 1 |
600 | mov si, space_msg-0x10000 |
||
601 | call printplain |
||
602 | _setcursor 15,0 |
||
603 | mov cx, 6 |
||
29 | halyavin | 604 | @@: |
76 | mario79 | 605 | call printplain |
606 | loop @b |
||
607 | jmp .printcfg |
||
29 | halyavin | 608 | .change_a: |
76 | mario79 | 609 | _setcursor 15,0 |
610 | mov si, gr_mode-0x10000 |
||
611 | call printplain |
||
612 | mov bx, '09' |
||
613 | call getkey |
||
614 | mov [preboot_graph-0x10000], al |
||
615 | cmp al, 4 |
||
616 | ja @f |
||
617 | mov si, probetext-0x10000 |
||
618 | call printplain |
||
619 | mov bx, '12' |
||
620 | call getkey |
||
621 | mov [preboot_gprobe-0x10000], al |
||
29 | halyavin | 622 | @@: |
76 | mario79 | 623 | _setcursor 10,0 |
624 | jmp .d |
||
29 | halyavin | 625 | .change_b: |
76 | mario79 | 626 | _setcursor 15,0 |
627 | mov si, gr_acc-0x10000 |
||
628 | call print |
||
629 | mov bx, '12' |
||
630 | call getkey |
||
631 | mov [preboot_mtrr-0x10000], al |
||
632 | _setcursor 11,0 |
||
633 | jmp .d |
||
29 | halyavin | 634 | .change_c: |
76 | mario79 | 635 | _setcursor 15,0 |
636 | mov si, vrrmprint-0x10000 |
||
637 | call print |
||
638 | mov bx, '12' |
||
639 | call getkey |
||
640 | mov [preboot_vrrm-0x10000], al |
||
641 | _setcursor 12,0 |
||
642 | jmp .d |
||
40 | halyavin | 643 | .say_on_off: |
76 | mario79 | 644 | pushf |
645 | call print |
||
646 | mov si, on_msg-0x10000 |
||
647 | popf |
||
648 | jz @f |
||
649 | mov si, off_msg-0x10000 |
||
650 | @@: call printplain |
||
651 | ret |
||
40 | halyavin | 652 | ; novesa and vervesa strings are not used at the moment of executing this code |
653 | virtual at novesa |
||
29 | halyavin | 654 | .oldtimer dd ? |
655 | .starttime dd ? |
||
656 | .bSettingsChanged db ? |
||
34 | halyavin | 657 | .timer dd ? |
40 | halyavin | 658 | end virtual |
82 | halyavin | 659 | org $+0x10000 |
29 | halyavin | 660 | .loader_block dd 0 |
82 | halyavin | 661 | org $-0x10000 |
29 | halyavin | 662 | .gettime: |
76 | mario79 | 663 | mov ah, 0 |
664 | int 1Ah |
||
665 | xchg ax, cx |
||
666 | shl eax, 10h |
||
667 | xchg ax, dx |
||
668 | ret |
||
29 | halyavin | 669 | .newtimer: |
76 | mario79 | 670 | push ds |
671 | push cs |
||
672 | pop ds |
||
673 | pushf |
||
674 | call [.oldtimer-0x10000] |
||
675 | pushad |
||
676 | call .gettime |
||
677 | sub eax, [.starttime-0x10000] |
||
678 | sub ax, 18*5 |
||
679 | jae .timergo |
||
680 | neg ax |
||
681 | add ax, 18-1 |
||
682 | mov bx, 18 |
||
683 | xor dx, dx |
||
684 | div bx |
||
29 | halyavin | 685 | if lang eq ru |
686 | ; ¯®¤®¦¤¨â¥ 5 ᥪã¤, 4/3/2 ᥪã¤ë, 1 ᥪã¤ã |
||
76 | mario79 | 687 | cmp al, 5 |
688 | mov cl, ' ' |
||
689 | jae @f |
||
690 | cmp al, 1 |
||
691 | mov cl, 'ã' |
||
692 | jz @f |
||
693 | mov cl, 'ë' |
||
694 | @@: mov [time_str+9-0x10000], cl |
||
29 | halyavin | 695 | else |
696 | ; wait 5/4/3/2 seconds, 1 second |
||
76 | mario79 | 697 | cmp al, 1 |
698 | mov cl, 's' |
||
699 | ja @f |
||
700 | mov cl, ' ' |
||
701 | @@: mov [time_str+9-0x10000], cl |
||
29 | halyavin | 702 | end if |
76 | mario79 | 703 | add al, '0' |
704 | mov [time_str+1-0x10000], al |
||
705 | mov si, time_msg-0x10000 |
||
706 | _setcursor 7,0 |
||
707 | call print |
||
708 | _setcursor 25,0 |
||
709 | popad |
||
710 | pop ds |
||
711 | iret |
||
29 | halyavin | 712 | .timergo: |
76 | mario79 | 713 | push 0 |
714 | pop es |
||
715 | mov eax, [.oldtimer-0x10000] |
||
716 | mov [es:8*4], eax |
||
717 | mov sp, 0EC00h |
||
29 | halyavin | 718 | .continue: |
76 | mario79 | 719 | sti |
720 | _setcursor 6,0 |
||
721 | mov si, space_msg-0x10000 |
||
722 | call printplain |
||
723 | call printplain |
||
724 | _setcursor 6,0 |
||
725 | mov si, loading_msg-0x10000 |
||
726 | call print |
||
727 | _setcursor 15,0 |
||
728 | cmp [.bSettingsChanged-0x10000], 0 |
||
729 | jz .load |
||
730 | cmp [.loader_block-0x10000], 0 |
||
731 | jz .load |
||
732 | les bx, [.loader_block-0x10000] |
||
733 | mov eax, [es:bx+3] |
||
734 | push ds |
||
735 | pop es |
||
736 | test eax, eax |
||
737 | jz .load |
||
738 | push eax |
||
739 | mov si, save_quest-0x10000 |
||
740 | call print |
||
29 | halyavin | 741 | .waityn: |
76 | mario79 | 742 | mov ah, 0 |
743 | int 16h |
||
744 | or al, 20h |
||
745 | cmp al, 'n' |
||
746 | jz .loadc |
||
747 | cmp al, 'y' |
||
748 | jnz .waityn |
||
749 | call putchar |
||
750 | mov byte [space_msg-0x10000+80], 186 |
||
751 | pop eax |
||
752 | push cs |
||
82 | halyavin | 753 | push .cont |
76 | mario79 | 754 | push eax |
755 | retf |
||
29 | halyavin | 756 | .loadc: |
76 | mario79 | 757 | pop eax |
29 | halyavin | 758 | .cont: |
76 | mario79 | 759 | push cs |
760 | pop ds |
||
761 | mov si, space_msg-0x10000 |
||
762 | mov byte [si+80], 0 |
||
763 | _setcursor 15,0 |
||
764 | call printplain |
||
765 | _setcursor 15,0 |
||
29 | halyavin | 766 | .load: |
767 | ; \end{diamond}[02.12.2005] |
||
1 | ha | 768 | |
769 | ; ASK GRAPHICS MODE |
||
770 | |||
76 | mario79 | 771 | movzx ax, [preboot_graph-0x10000] |
772 | push 0 |
||
773 | pop es |
||
29 | halyavin | 774 | ; address is gr_table+6*(ax-1)-0x10000 |
76 | mario79 | 775 | add ax, ax |
776 | lea si, [gr_table-0x10000 + eax + eax*2 - 6] |
||
29 | halyavin | 777 | mov bx,[si+0] |
778 | mov cx,[si+2] |
||
779 | mov dx,[si+4] |
||
76 | mario79 | 780 | cmp al, 9*2 |
781 | mov al, 32 ; BPP |
||
782 | jb @f |
||
783 | mov [es:0x9000], al |
||
784 | mov dword [es:0x9018], 0x800000 |
||
29 | halyavin | 785 | @@: |
1 | ha | 786 | mov [es:0x9008],bx |
787 | mov [es:0x900A],cx |
||
788 | mov [es:0x900C],dx |
||
76 | mario79 | 789 | test bh, bh |
790 | jz nov |
||
1 | ha | 791 | |
792 | ; USE DEFAULTS OR PROBE |
||
793 | |||
794 | ; bx - mode : cx - x size : dx - y size |
||
76 | mario79 | 795 | cmp [preboot_gprobe-0x10000], 1 |
796 | jz noprobe |
||
1 | ha | 797 | |
798 | mov bx,0x100 |
||
799 | newprobe: |
||
800 | inc bx |
||
801 | cmp bx,0x17f |
||
76 | mario79 | 802 | mov si,prnotfnd-0x10000 |
803 | jz sayerr |
||
1 | ha | 804 | |
805 | probemore: |
||
76 | mario79 | 806 | push cx |
1 | ha | 807 | mov ax,0x4f01 |
808 | mov cx,bx |
||
809 | and cx,0xfff |
||
810 | mov di,0xa000 |
||
811 | int 0x10 |
||
76 | mario79 | 812 | pop cx |
1 | ha | 813 | |
76 | mario79 | 814 | test byte [es:di], 80h ; lfb? |
815 | jz newprobe |
||
816 | cmp [es:di+0x12], cx ; x size? |
||
817 | jnz newprobe |
||
818 | cmp [es:di+0x14], dx ; y size? |
||
819 | jnz newprobe |
||
820 | cmp byte [es:di+0x19], 32 ;24 |
||
821 | jb newprobe |
||
1 | ha | 822 | |
40 | halyavin | 823 | ; add bx,0100000000000000b |
76 | mario79 | 824 | or bh, 40h |
1 | ha | 825 | mov [es:0x9008],bx |
826 | |||
827 | noprobe: |
||
828 | |||
829 | |||
830 | ; FIND VESA 2.0 LFB & BPP |
||
831 | |||
832 | mov ax,0x4f01 |
||
833 | mov cx,bx |
||
834 | and cx,0xfff |
||
835 | mov di,0xa000 |
||
836 | int 0x10 |
||
837 | ; LFB |
||
40 | halyavin | 838 | mov eax,[es:di+0x28] |
839 | mov [es:0x9018],eax |
||
1 | ha | 840 | ; ---- vbe voodoo |
841 | BytesPerScanLine equ 0x10 |
||
842 | mov ax, [es:di+BytesPerScanLine] |
||
843 | mov [es:0x9001],ax |
||
29 | halyavin | 844 | ; BPP |
40 | halyavin | 845 | mov al,byte [es:di+0x19] |
29 | halyavin | 846 | mov [es:0x9000],al |
1 | ha | 847 | nov: |
40 | halyavin | 848 | cmp al,24 |
76 | mario79 | 849 | mov si,bt24-0x10000 |
850 | jz bppl |
||
40 | halyavin | 851 | cmp al,32 |
1 | ha | 852 | mov si,bt32-0x10000 |
29 | halyavin | 853 | jz bppl |
1 | ha | 854 | mov si,btns-0x10000 |
76 | mario79 | 855 | jmp sayerr |
40 | halyavin | 856 | bppl: |
1 | ha | 857 | call print |
858 | |||
859 | |||
860 | ; FIND VESA 1.2 PM BANK SWITCH ADDRESS |
||
861 | |||
76 | mario79 | 862 | push es |
1 | ha | 863 | mov ax,0x4f0A |
76 | mario79 | 864 | xor bx, bx |
1 | ha | 865 | int 0x10 |
866 | xor eax,eax |
||
867 | mov ax,es |
||
868 | shl eax,4 |
||
29 | halyavin | 869 | movzx ebx,di |
1 | ha | 870 | add eax,ebx |
871 | mov bx,[es:di] |
||
872 | add eax,ebx |
||
873 | pop es |
||
874 | mov [es:0x9014],eax |
||
875 | |||
876 | |||
877 | ; GRAPHICS ACCELERATION |
||
878 | |||
29 | halyavin | 879 | mov al, [preboot_mtrr-0x10000] |
1 | ha | 880 | mov [es:0x901C],al |
881 | |||
882 | ; VRR_M USE |
||
883 | |||
29 | halyavin | 884 | mov al,[preboot_vrrm-0x10000] |
1 | ha | 885 | mov [es:0x9030],al |
886 | |||
887 | |||
888 | ; MEMORY MODEL |
||
889 | |||
890 | ; movzx eax,byte [es:preboot_memory-0x10000] |
||
891 | ; cmp eax,0 |
||
892 | ; jne pre_mem |
||
893 | ;;;;;;;;;;;;;;;;;;;;;;;;; |
||
894 | ; mario79 - memory size ; |
||
895 | ;;;;;;;;;;;;;;;;;;;;;;;;; |
||
896 | ; mov ax,0E801h |
||
897 | ;;; xor bx,bx ; thanks to Alexei for bugfix [18.07.2004] |
||
898 | ; xor cx, cx |
||
899 | ; xor dx, dx |
||
900 | ; int 0x15 |
||
901 | ; movzx ebx, dx ;bx |
||
902 | ; movzx eax, cx ;ax |
||
903 | ; shl ebx,6 ; ïåðåâîä â êèëîáàéòû (x64) |
||
904 | ; add eax,ebx |
||
905 | ; add eax, 1000h ;440h |
||
906 | ; cmp eax,40000h ; 256? |
||
907 | ; jge mem_256_z |
||
908 | ; cmp eax,20000h ; 128? |
||
909 | ; jge mem_128_z |
||
910 | ; cmp eax,10000h ; 64? |
||
911 | ; jge mem_64_z |
||
912 | ; cmp eax,8000h ; 32? |
||
913 | ; jge mem_32_z |
||
914 | ; jmp mem_16_z |
||
915 | ; |
||
916 | ;mem_256_z: mov si,memokz256-0x10000 |
||
917 | ; call printplain |
||
918 | ; mov eax,5 |
||
919 | ; jmp pre_mem |
||
920 | ;mem_128_z: mov si,memokz128-0x10000 |
||
921 | ; call printplain |
||
922 | ; mov eax,4 |
||
923 | ; jmp pre_mem |
||
924 | ;mem_64_z: mov si,memokz64-0x10000 |
||
925 | ; call printplain |
||
926 | ; mov eax,3 |
||
927 | ; jmp pre_mem |
||
928 | ;mem_32_z: mov si,memokz32-0x10000 |
||
929 | ; call printplain |
||
930 | ; mov eax,2 |
||
931 | ; jmp pre_mem |
||
932 | ;mem_16_z: mov si,memokz16-0x10000 |
||
933 | ; call printplain |
||
934 | ; mov eax,1 |
||
935 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
936 | ; pre_mem: |
||
937 | ; push word 0x0000 |
||
938 | ; pop es |
||
939 | ; mov [es:0x9030],al |
||
940 | ; push word 0x1000 |
||
941 | ; pop es |
||
942 | ; mov si,linef-0x10000 |
||
943 | ; call printplain |
||
944 | |||
945 | |||
946 | |||
947 | |||
948 | ; DIRECT WRITE TO LFB, PAGING DISABLED |
||
949 | |||
950 | ; movzx eax,byte [es:preboot_lfb-0x10000] |
||
951 | ; mov eax,1 ; paging disabled |
||
952 | ; cmp eax,0 |
||
953 | ; jne pre_lfb |
||
954 | ; mov si,gr_direct-0x10000 |
||
955 | ; call printplain |
||
29 | halyavin | 956 | ; mov ebx,'12' |
1 | ha | 957 | ; call getkey |
958 | ; pre_lfb: |
||
959 | ; push word 0x0000 |
||
960 | ; pop es |
||
961 | ; mov [es:0x901E],al |
||
962 | ; mov ax,0x1000 |
||
963 | ; mov es,ax |
||
964 | ; mov si,linef-0x10000 |
||
965 | ; call printplain |
||
966 | mov [es:0x901E],byte 1 |
||
967 | |||
968 | |||
969 | |||
970 | ; BOOT DEVICE |
||
971 | |||
76 | mario79 | 972 | mov al, [preboot_device-0x10000] |
40 | halyavin | 973 | dec al |
29 | halyavin | 974 | mov [boot_dev-0x10000],al |
1 | ha | 975 | |
976 | ; READ DISKETTE TO MEMORY |
||
977 | |||
40 | halyavin | 978 | ; cmp [boot_dev-0x10000],0 |
1 | ha | 979 | jne no_sys_on_floppy |
980 | mov si,diskload-0x10000 |
||
981 | call print |
||
76 | mario79 | 982 | xor ax, ax ; reset drive |
983 | xor dx, dx |
||
1 | ha | 984 | int 0x13 |
134 | diamond | 985 | ; now load floppy image to memory |
986 | ; at first load boot sector and first FAT table |
||
987 | mov cx, 0x0001 ; startcyl,startsector |
||
988 | xor dx, dx ; starthead,drive |
||
989 | mov al, 1+9 ; no of sectors to read |
||
990 | mov bx, 0xB000 ; es:bx -> data area |
||
991 | call boot_read_floppy |
||
992 | ; and copy them to extended memory |
||
993 | mov si, movedesc-0x10000 |
||
994 | mov [si+8*2+3], bh |
||
995 | push es |
||
996 | push ds |
||
997 | pop es |
||
998 | mov cx, 256*10 |
||
999 | mov ah, 0x87 |
||
1000 | int 0x15 |
||
76 | mario79 | 1001 | test ah, ah |
134 | diamond | 1002 | jz @f |
1003 | sayerr_floppy: |
||
1004 | mov dx, 0x3f2 |
||
1005 | mov al, 0 |
||
1006 | out dx, al |
||
1007 | mov si, memmovefailed-0x10000 |
||
1008 | jmp sayerr_plain |
||
1009 | @@: |
||
1010 | add dword [si+8*3+2], 512*10 |
||
1011 | ; copy FAT to second copy |
||
1012 | mov byte [si+8*2+3], 0xB2 |
||
1013 | mov cx, 256*9 |
||
1014 | mov ah, 0x87 |
||
1015 | int 0x15 |
||
1016 | pop es |
||
1017 | test ah, ah |
||
1018 | jnz sayerr_floppy |
||
1019 | add dword [si+8*3+2], 512*9 |
||
1020 | ; calculate total number of sectors to read |
||
1021 | mov ax, 1+9+14 ; boot+FAT+root |
||
1022 | mov di, 0xB203 |
||
1023 | .calc_loop: |
||
1024 | test word [es:di], 0xFFF |
||
1025 | jz @f |
||
1026 | inc ax |
||
1027 | @@: |
||
1028 | test word [es:di+1], 0xFFF0 |
||
1029 | jz @f |
||
1030 | inc ax |
||
1031 | @@: |
||
1032 | add di, 3 |
||
1033 | cmp di, 0xB200+1440*3 |
||
1034 | jb .calc_loop |
||
1035 | push ax |
||
1036 | mov bp, 1+9 ; already read sectors |
||
1037 | ; now read rest |
||
1038 | mov byte [si+8*2+3], 0xA0 |
||
1039 | mov di, 2-14 ; absolute sector-31 |
||
1040 | mov cx, 0x0002 ; cylinder=0, sector=2 |
||
1041 | mov dx, 0x0100 ; head=1, disk=0 |
||
1042 | .read_loop: |
||
1043 | ; determine whether sector must be read |
||
1044 | cmp di, 2 |
||
1045 | jl .read |
||
1046 | mov bx, di |
||
1047 | shr bx, 1 |
||
1048 | jnc .even |
||
1049 | test word [es:bx+di+0xB200], 0xFFF0 |
||
1050 | jmp @f |
||
1051 | .even: |
||
1052 | test word [es:bx+di+0xB200], 0xFFF |
||
1053 | @@: |
||
1054 | jz .skip |
||
1055 | .read: |
||
1056 | mov bx, 0xA000 |
||
1057 | mov al, 1 ; 1 sector |
||
1058 | call boot_read_floppy |
||
1059 | inc bp |
||
76 | mario79 | 1060 | push es |
1061 | push ds |
||
1 | ha | 1062 | pop es |
134 | diamond | 1063 | pusha |
1064 | mov cx, 256 |
||
1065 | mov ah, 0x87 |
||
1 | ha | 1066 | int 0x15 |
134 | diamond | 1067 | test ah, ah |
1 | ha | 1068 | popa |
134 | diamond | 1069 | pop es |
1070 | jnz sayerr_floppy |
||
1071 | .skip: |
||
1072 | add dword [si+8*3+2], 512 |
||
1073 | inc cx |
||
1074 | cmp cl, 19 |
||
1075 | jnz @f |
||
1076 | mov cl, 1 |
||
1 | ha | 1077 | inc dh |
134 | diamond | 1078 | cmp dh, 2 |
1079 | jnz @f |
||
1080 | mov dh, 0 |
||
1 | ha | 1081 | inc ch |
29 | halyavin | 1082 | @@: |
134 | diamond | 1083 | pop ax |
1084 | push ax |
||
1085 | pusha |
||
1086 | ; draw percentage |
||
1087 | ; total sectors: ax |
||
1088 | ; read sectors: bp |
||
1089 | xchg ax, bp |
||
1090 | mov cx, 100 |
||
1091 | mul cx |
||
1092 | div bp |
||
1093 | aam |
||
1094 | xchg al, ah |
||
1095 | add ax, '00' |
||
1096 | mov si, pros-0x10000 |
||
1097 | cmp [si], ax |
||
1098 | jz @f |
||
1099 | mov [si], ax |
||
1 | ha | 1100 | call printplain |
134 | diamond | 1101 | @@: |
1 | ha | 1102 | popa |
134 | diamond | 1103 | inc di |
1104 | cmp di, 2880-31 |
||
1105 | jnz .read_loop |
||
1106 | |||
1107 | ; mov cx, 0x0001 ; startcyl,startsector |
||
1108 | ; xor dx, dx ; starthead,drive |
||
1109 | ; push word 80*2 ; read no of sect |
||
1110 | ; reads: |
||
1111 | ; pusha |
||
1112 | ; xor si,si |
||
1113 | ; newread: |
||
1114 | ; mov bx,0xa000 ; es:bx -> data area |
||
1115 | ; mov ax,0x0200+18 ; read, no of sectors to read |
||
1116 | ; int 0x13 |
||
1117 | ; test ah, ah |
||
1118 | ; jz goodread |
||
1119 | ; inc si |
||
1120 | ; cmp si,10 |
||
1121 | ; jnz newread |
||
1122 | ; mov si,badsect-0x10000 |
||
1123 | ;sayerr_plain: |
||
1124 | ; call printplain |
||
1125 | ; jmp $ |
||
1126 | ; goodread: |
||
1127 | ; ; move -> 1mb |
||
1128 | ; mov si,movedesc-0x10000 |
||
1129 | ; push es |
||
1130 | ; push ds |
||
1131 | ; pop es |
||
1132 | ; mov cx,256*18 |
||
1133 | ; mov ah,0x87 |
||
1134 | ; int 0x15 |
||
1135 | ; pop es |
||
1136 | ; |
||
1137 | ; test ah,ah ; was the move successfull ? |
||
1138 | ; je goodmove |
||
1139 | ; mov dx,0x3f2 ; floppy motor off |
||
1140 | ; mov al,0 |
||
1141 | ; out dx,al |
||
1142 | ; mov si,memmovefailed-0x10000 |
||
1143 | ; jmp sayerr_plain |
||
1144 | ; goodmove: |
||
1145 | ; |
||
1146 | ; add dword [movedesc-0x10000+0x18+2], 512*18 |
||
1147 | ; popa |
||
1148 | ; inc dh |
||
1149 | ; cmp dh,2 |
||
1150 | ; jnz bb2 |
||
1151 | ; mov dh,0 |
||
1152 | ; inc ch |
||
1153 | ; pusha ; print prosentage |
||
1154 | ; mov si,pros-0x10000 |
||
1155 | ; shr ch, 2 |
||
1156 | ; mov al, '5' |
||
1157 | ; test ch, 1 |
||
1158 | ; jnz @f |
||
1159 | ; mov al, '0' |
||
1160 | ;@@: |
||
1161 | ; mov [si+1], al |
||
1162 | ; shr ch, 1 |
||
1163 | ; add ch, '0' |
||
1164 | ; mov [si], ch |
||
1165 | ; call printplain |
||
1166 | ; popa |
||
1167 | ; bb2: |
||
1168 | ; pop ax |
||
1169 | ; dec ax |
||
1170 | ; push ax |
||
1171 | ; jnz reads |
||
1172 | ; readdone: |
||
1173 | ; pop ax |
||
40 | halyavin | 1174 | mov si,backspace2-0x10000 |
1 | ha | 1175 | call printplain |
1176 | mov si,okt-0x10000 |
||
1177 | call printplain |
||
1178 | no_sys_on_floppy: |
||
76 | mario79 | 1179 | xor ax, ax ; reset drive |
1180 | xor dx, dx |
||
1 | ha | 1181 | int 0x13 |
1182 | mov dx,0x3f2 ; floppy motor off |
||
1183 | mov al,0 |
||
29 | halyavin | 1184 | out dx,al |
1 | ha | 1185 | |
76 | mario79 | 1186 | push es |
1 | ha | 1187 | ; PAGE TABLE |
1188 | |||
76 | mario79 | 1189 | push dword [es:0x9018] |
1 | ha | 1190 | |
1191 | map_mem equ 64 ; amount of memory to map |
||
1192 | |||
76 | mario79 | 1193 | push 0x6000 |
1194 | pop es ; es:di = 6000:0 |
||
29 | halyavin | 1195 | xor di,di |
1196 | mov cx,256*map_mem ; Map (mapmem) M |
||
40 | halyavin | 1197 | ; initialize as identity mapping |
76 | mario79 | 1198 | xor eax, eax |
1199 | call pagetable_set |
||
40 | halyavin | 1200 | |
1 | ha | 1201 | |
1202 | ; 4 KB PAGE DIRECTORY |
||
1203 | |||
76 | mario79 | 1204 | push 0x7F00 |
1205 | pop es ; es:di = 7F00:0 |
||
29 | halyavin | 1206 | xor di, di |
1207 | mov cx, 64 / 4 |
||
1 | ha | 1208 | mov eax, 0x60007 ; for 0 M |
76 | mario79 | 1209 | call pagetable_set |
29 | halyavin | 1210 | xor si,si |
1211 | mov di,second_base_address shr 20 |
||
40 | halyavin | 1212 | mov cx,64/2 |
1213 | rep movs word [es:di], [es:si] |
||
1 | ha | 1214 | |
1215 | mov eax, 0x7F000 +8+16 ; Page directory and enable caches |
||
1216 | mov cr3, eax |
||
1217 | |||
1218 | ; SET GRAPHICS |
||
1219 | |||
76 | mario79 | 1220 | pop es |
1221 | mov ax,[es:0x9008] ; vga & 320x200 |
||
1222 | mov bx, ax |
||
1 | ha | 1223 | cmp ax,0x13 |
1224 | je setgr |
||
1225 | cmp ax,0x12 |
||
1226 | je setgr |
||
1227 | mov ax,0x4f02 ; Vesa |
||
1228 | setgr: |
||
1229 | int 0x10 |
||
76 | mario79 | 1230 | test ah,ah |
1231 | mov si, fatalsel-0x10000 |
||
1232 | jnz sayerr |
||
1 | ha | 1233 | ; set mode 0x12 graphics registers: |
1234 | cmp bx,0x12 |
||
1235 | jne gmok2 |
||
1236 | |||
1237 | mov al,0x05 |
||
1238 | mov dx,0x03ce |
||
40 | halyavin | 1239 | push dx |
1 | ha | 1240 | out dx,al ; select GDC mode register |
1241 | mov al,0x02 |
||
76 | mario79 | 1242 | inc dx |
1 | ha | 1243 | out dx,al ; set write mode 2 |
1244 | |||
1245 | mov al,0x02 |
||
1246 | mov dx,0x03c4 |
||
1247 | out dx,al ; select VGA sequencer map mask register |
||
1248 | mov al,0x0f |
||
76 | mario79 | 1249 | inc dx |
1 | ha | 1250 | out dx,al ; set mask for all planes 0-3 |
1251 | |||
1252 | mov al,0x08 |
||
76 | mario79 | 1253 | pop dx |
1 | ha | 1254 | out dx,al ; select GDC bit mask register |
1255 | ; for writes to 0x03cf |
||
1256 | |||
1257 | gmok2: |
||
76 | mario79 | 1258 | push ds |
1259 | pop es |