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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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20 | mov ah, 0Eh |
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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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27 | mov al, 186 |
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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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34 | pusha |
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35 | lodsb |
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36 | @@: |
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37 | call putchar |
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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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114 | mov ah, 0 |
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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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126 | @@: |
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127 | ret |
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1 | ha | 128 | |
29 | halyavin | 129 | setcursor: |
130 | ; in: dl=column, dh=row |
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131 | mov ah, 2 |
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132 | mov bh, 0 |
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133 | int 10h |
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134 | ret |
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135 | |||
136 | macro _setcursor row,column |
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137 | { |
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138 | mov dx, row*256 + column |
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139 | call setcursor |
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140 | } |
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141 | |||
40 | halyavin | 142 | pagetable_set: |
143 | or al, 7 |
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144 | @@: |
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145 | stosd |
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146 | add eax, 1000h |
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147 | loop @b |
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148 | ret |
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149 | |||
29 | halyavin | 150 | ; 16-bit data |
151 | ; videomodes table |
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152 | gr_table: |
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153 | dw 0x112+0100000000000000b , 640 , 480 ; 1 |
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154 | dw 0x115+0100000000000000b , 800 , 600 ; 2 |
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155 | dw 0x118+0100000000000000b , 1024 , 768 ; 3 |
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156 | dw 0x11B+0100000000000000b , 1280 , 1024 ; 4 |
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157 | dw 0x112 , 640 , 480 ; 5 |
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158 | dw 0x115 , 800 , 600 ; 6 |
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159 | dw 0x118 , 1024 , 768 ; 7 |
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160 | dw 0x11B , 1280 ,1024 ; 8 |
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161 | dw 0x13, 320, 200 ; 9 |
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162 | dw 0x12, 640, 480 ; 0 |
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163 | |||
164 | ; table for move to extended memory (int 15h, ah=87h) |
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165 | movedesc: |
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166 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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167 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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168 | |||
169 | db 0xff,0xff,0x0,0xa0,0x00,0x93,0x0,0x0 |
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170 | db 0xff,0xff,0x0,0x00,0x10,0x93,0x0,0x0 |
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171 | |||
172 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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173 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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174 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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175 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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176 | |||
1 | ha | 177 | ;========================================================================= |
178 | ; |
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179 | ; 16 BIT CODE |
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180 | ; |
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181 | ;========================================================================= |
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182 | |||
183 | |||
184 | start_of_code: |
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29 | halyavin | 185 | cld |
186 | ; \begin{diamond}[02.12.2005] |
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187 | cmp ax, 'KL' |
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188 | jnz @f |
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189 | mov word [cs:cfgmanager.loader_block-0x10000], si |
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190 | mov word [cs:cfgmanager.loader_block+2-0x10000], ds |
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191 | @@: |
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192 | ; \end{diamond}[02.12.2005] |
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1 | ha | 193 | |
29 | halyavin | 194 | ; set up stack |
195 | mov ax, 3000h |
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196 | mov ss, ax |
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197 | mov sp, 0EC00h |
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198 | ; set up segment registers |
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199 | push cs |
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200 | pop ds |
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201 | push cs |
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202 | pop es |
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1 | ha | 203 | |
29 | halyavin | 204 | ; set videomode |
205 | mov ax, 3 |
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1 | ha | 206 | int 0x10 |
207 | |||
208 | ; Load & set russian VGA font (RU.INC) |
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209 | mov bp,RU_FNT1-10000h ; RU_FNT1 - First part |
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210 | mov bx,1000h ; 768 bytes |
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211 | mov cx,30h ; 48 symbols |
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212 | mov dx,80h ; 128 - position of first symbol |
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213 | mov ax,1100h |
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214 | int 10h |
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215 | |||
216 | mov bp,RU_FNT2-10000h ; RU_FNT2 -Second part |
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217 | mov bx,1000h ; 512 bytes |
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218 | mov cx,20h ; 32 symbols |
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219 | mov dx,0E0h ; 224 - position of first symbol |
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220 | mov ax,1100h |
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221 | int 10h |
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222 | ; End set VGA russian font |
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223 | |||
29 | halyavin | 224 | ; draw frames |
225 | push 0xb800 |
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226 | pop es |
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227 | xor di, di |
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228 | ; mov si,d80x25-0x10000 |
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229 | ; mov cx,80*25 |
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230 | ; mov ah,1*16+15 |
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231 | ; dfl1: |
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232 | ; lodsb |
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233 | ; stosw |
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234 | ; loop dfl1 |
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235 | mov ah, 1*16+15 |
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236 | ; draw top |
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237 | mov si, d80x25_top - 0x10000 |
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238 | mov cx, d80x25_top_num * 80 |
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239 | @@: |
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240 | lodsb |
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241 | stosw |
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242 | loop @b |
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243 | ; draw spaces |
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244 | mov si, space_msg - 0x10000 |
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245 | mov cx, 25 - d80x25_top_num - d80x25_bottom_num |
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246 | dfl1: |
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247 | push cx |
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248 | push si |
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249 | mov cx, 80 |
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250 | @@: |
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251 | lodsb |
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252 | stosw |
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253 | loop @b |
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254 | pop si |
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255 | pop cx |
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256 | loop dfl1 |
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257 | ; draw bottom |
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258 | mov si, d80x25_bottom - 0x10000 |
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259 | mov cx, d80x25_bottom_num * 80 |
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260 | @@: |
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261 | lodsb |
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262 | stosw |
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263 | loop @b |
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1 | ha | 264 | |
29 | halyavin | 265 | mov byte [space_msg-0x10000+80], 0 ; now space_msg is null terminated |
1 | ha | 266 | |
29 | halyavin | 267 | _setcursor d80x25_top_num,0 |
1 | ha | 268 | |
269 | |||
270 | ; TEST FOR 386+ |
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271 | |||
29 | halyavin | 272 | mov bx, 0x4000 |
1 | ha | 273 | pushf |
274 | pop ax |
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275 | mov dx,ax |
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29 | halyavin | 276 | xor ax,bx |
1 | ha | 277 | push ax |
278 | popf |
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279 | pushf |
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280 | pop ax |
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29 | halyavin | 281 | and ax,bx |
282 | and dx,bx |
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1 | ha | 283 | cmp ax,dx |
284 | jnz cpugood |
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285 | mov si,not386-0x10000 |
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40 | halyavin | 286 | sayerr: |
1 | ha | 287 | call print |
288 | jmp $ |
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289 | cpugood: |
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290 | |||
29 | halyavin | 291 | ; set up esp |
292 | movzx esp, sp |
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1 | ha | 293 | |
294 | ; FLUSH 8042 KEYBOARD CONTROLLER |
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295 | |||
296 | ;// mike.dld [ |
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297 | ; mov al,0xED |
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298 | ; out 0x60,al |
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299 | ; or cx,-1 |
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300 | ; @@: |
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301 | ; in al,0x64 |
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302 | ; test al,2 |
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303 | ; jz @f |
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304 | ; loop @b |
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305 | ; @@: |
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306 | ; mov al,0 |
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307 | ; out 0x60,al |
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308 | ; or cx,-1 |
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309 | ; @@: |
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310 | ; in al,0x64 |
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311 | ; test al,2 |
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312 | ; jz @f |
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313 | ; loop @b |
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314 | ; @@: |
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315 | ;// mike.dld ] |
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316 | |||
317 | ; mov ecx,10000 |
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318 | ; fl1: |
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319 | ; in al,0x64 |
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320 | ; loop fl1 |
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321 | ; test al,1 |
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322 | ; jz fl2 |
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323 | ; in al,0x60 |
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324 | ; jmp fl1 |
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325 | ; fl2: |
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326 | |||
327 | ;**************************************************************** |
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328 | ; The function is modified Mario79 |
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329 | ;***************************************************************** |
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330 | ; wait_kbd: ; variant 1 |
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331 | ; mov cx,2500h ;çàäåðæêà ïîðÿäêà 10 ìñåê |
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332 | ; test_kbd: |
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333 | ; in al,64h ;÷èòàåì ñîñòîÿíèå êëàâèàòóðû |
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334 | ; test al,2 ;ïðîâåðêà áèòà ãîòîâíîñòè |
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335 | ; loopnz test_kbd |
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336 | |||
337 | mov al,0xf6 ; Ñáðîñ êëàâèàòóðû, ðàçðåøèòü ñêàíèðîâàíèå |
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338 | out 0x60,al |
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29 | halyavin | 339 | xor cx,cx |
1 | ha | 340 | wait_loop: ; variant 2 |
341 | ; reading state of port of 8042 controller |
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342 | in al,64h |
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343 | and al,00000010b ; ready flag |
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344 | ; wait until 8042 controller is ready |
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345 | loopnz wait_loop |
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346 | |||
347 | ; DISPLAY VESA INFORMATION |
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348 | |||
29 | halyavin | 349 | push 0 |
350 | pop es |
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1 | ha | 351 | mov ax,0x4f00 |
352 | mov di,0xa000 |
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353 | int 0x10 |
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354 | cmp ax,0x004f |
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29 | halyavin | 355 | mov si, novesa-0x10000 |
356 | jnz @f |
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1 | ha | 357 | mov ax,[es:di+4] |
358 | add ax,'0'*256+'0' |
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40 | halyavin | 359 | mov si,vervesa-0x10000 |
360 | mov [si+vervesa_off], ah |
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361 | mov [si+vervesa_off+2], al |
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29 | halyavin | 362 | @@: call print |
1 | ha | 363 | |
29 | halyavin | 364 | ; \begin{diamond}[30.11.2005] |
365 | cfgmanager: |
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366 | ; settings: |
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367 | ; a) preboot_graph = graphical mode |
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368 | ; preboot_gprobe = probe this mode? |
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369 | ; b) preboot_mtrr = use hardware acceleration? |
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370 | ; c) preboot_vrrm = use VRR? |
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371 | ; d) preboot_device = from what boot? |
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40 | halyavin | 372 | mov di, preboot_graph-0x10000 |
29 | halyavin | 373 | ; check bootloader block |
374 | cmp [.loader_block-0x10000], 0 |
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375 | jz .noloaderblock |
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376 | les bx, [.loader_block-0x10000] |
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377 | cmp byte [es:bx], 1 |
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378 | mov si, loader_block_error-0x10000 |
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40 | halyavin | 379 | jnz sayerr |
29 | halyavin | 380 | test byte [es:bx+1], 1 |
381 | jz @f |
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382 | ; image in memory present |
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40 | halyavin | 383 | cmp [di+preboot_device-preboot_graph], 0 |
29 | halyavin | 384 | jnz @f |
40 | halyavin | 385 | mov [di+preboot_device-preboot_graph], 3 |
29 | halyavin | 386 | @@: |
387 | .noloaderblock: |
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388 | ; determine default settings |
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389 | mov [.bSettingsChanged-0x10000], 0 |
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40 | halyavin | 390 | cmp byte [di], 0 |
29 | halyavin | 391 | jnz .preboot_gr_end |
40 | halyavin | 392 | mov [di+preboot_gprobe-preboot_graph], 0 |
29 | halyavin | 393 | mov al, [vervesa+vervesa_off-0x10000] |
394 | cmp al, 'x' |
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395 | jz .novesa |
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396 | cmp al, '1' |
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397 | jz .vesa12 |
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40 | halyavin | 398 | mov [di+preboot_gprobe-preboot_graph], 2 |
29 | halyavin | 399 | mov al, 3 |
400 | jmp @f |
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401 | .vesa12: |
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402 | mov al, 7 |
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403 | jmp @f |
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404 | .novesa: |
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405 | mov al, 10 |
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406 | @@: |
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40 | halyavin | 407 | mov [di], al |
29 | halyavin | 408 | .preboot_gr_end: |
40 | halyavin | 409 | cmp [di+preboot_mtrr-preboot_graph], 1 |
410 | adc [di+preboot_mtrr-preboot_graph], 0 |
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411 | cmp [di+preboot_vrrm-preboot_graph], 1 |
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412 | adc [di+preboot_vrrm-preboot_graph], 0 |
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413 | cmp [di+preboot_device-preboot_graph], 1 |
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414 | adc [di+preboot_device-preboot_graph], 0 |
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29 | halyavin | 415 | ; notify user |
416 | mov si, linef-0x10000 |
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417 | call print |
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418 | mov si, start_msg-0x10000 |
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419 | call print |
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420 | mov si, time_msg-0x10000 |
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421 | call print |
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422 | ; get start time |
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423 | call .gettime |
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424 | mov [.starttime-0x10000], eax |
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34 | halyavin | 425 | mov word [.timer-0x10000], .newtimer-0x10000 |
426 | mov word [.timer-0x10000+2], cs |
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29 | halyavin | 427 | .printcfg: |
428 | _setcursor 9,0 |
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429 | mov si, current_cfg_msg-0x10000 |
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430 | call print |
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431 | mov si, curvideo_msg-0x10000 |
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432 | call print |
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433 | mov al, [preboot_graph-0x10000] |
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434 | cmp al, 8 |
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435 | ja .pnovesa |
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436 | mov dl, al |
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437 | and eax, 3 |
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438 | mov si, [modes_msg-0x10000+eax*2] |
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439 | call printplain |
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440 | mov si, modevesa20-0x10000 |
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441 | cmp dl, 4 |
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442 | jbe @f |
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443 | mov si, modevesa12-0x10000 |
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444 | @@: |
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445 | call printplain |
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446 | cmp dl, 4 |
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447 | ja .x |
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448 | mov si, probeno_msg-0x10000 |
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449 | cmp [preboot_gprobe-0x10000], 2 |
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450 | jnz @f |
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451 | mov si, probeok_msg-0x10000 |
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452 | @@: |
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453 | call printplain |
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454 | .x: |
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455 | jmp .c |
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456 | .pnovesa: |
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457 | cmp al, 9 |
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458 | mov si, mode9-0x10000 |
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459 | jz @b |
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460 | mov si, mode10-0x10000 |
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461 | jmp @b |
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462 | .c: |
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463 | mov si, linef-0x10000 |
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464 | call printplain |
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465 | mov si, mtrr_msg-0x10000 |
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466 | cmp [preboot_mtrr-0x10000], 1 |
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40 | halyavin | 467 | call .say_on_off |
29 | halyavin | 468 | mov si, vrrm_msg-0x10000 |
469 | cmp [preboot_vrrm-0x10000], 1 |
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40 | halyavin | 470 | call .say_on_off |
29 | halyavin | 471 | mov si, preboot_device_msg-0x10000 |
472 | call print |
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473 | mov al, [preboot_device-0x10000] |
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474 | and eax, 3 |
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475 | mov si, [preboot_device_msgs-0x10000+eax*2] |
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476 | call printplain |
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477 | .wait: |
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478 | _setcursor 25,0 ; out of screen |
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34 | halyavin | 479 | ; set timer interrupt handler |
480 | cli |
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481 | push 0 |
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482 | pop es |
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483 | mov eax, [es:8*4] |
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484 | mov [.oldtimer-0x10000], eax |
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485 | mov eax, [.timer-0x10000] |
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486 | mov [es:8*4], eax |
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487 | sti |
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29 | halyavin | 488 | ; wait for keypressed |
489 | mov ah, 0 |
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490 | int 16h |
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491 | push ax |
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492 | ; restore timer interrupt |
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493 | push 0 |
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494 | pop es |
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40 | halyavin | 495 | mov eax, [.oldtimer-0x10000] |
496 | mov [es:8*4], eax |
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497 | mov [.timer-0x10000], eax |
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29 | halyavin | 498 | _setcursor 7,0 |
499 | mov si, space_msg-0x10000 |
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500 | call printplain |
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501 | pop ax |
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502 | ; switch on key |
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503 | cmp al, 13 |
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504 | jz .continue |
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505 | or al, 20h |
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506 | cmp al, 'a' |
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507 | jz .change_a |
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508 | cmp al, 'b' |
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509 | jz .change_b |
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510 | cmp al, 'c' |
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511 | jz .change_c |
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512 | cmp al, 'd' |
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513 | jnz .wait |
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514 | _setcursor 15,0 |
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515 | mov si,bdev-0x10000 |
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40 | halyavin | 516 | call print |
29 | halyavin | 517 | mov bx,'13' |
518 | call getkey |
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519 | mov [preboot_device-0x10000], al |
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520 | _setcursor 13,0 |
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521 | .d: |
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40 | halyavin | 522 | mov [.bSettingsChanged-0x10000], 1 |
29 | halyavin | 523 | mov si, space_msg-0x10000 |
524 | call printplain |
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525 | _setcursor 15,0 |
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526 | mov cx, 6 |
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527 | @@: |
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528 | call printplain |
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529 | loop @b |
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530 | jmp .printcfg |
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531 | .change_a: |
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532 | _setcursor 15,0 |
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533 | mov si, gr_mode-0x10000 |
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534 | call printplain |
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535 | mov bx, '09' |
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536 | call getkey |
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537 | mov [preboot_graph-0x10000], al |
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538 | cmp al, 4 |
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539 | ja @f |
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540 | mov si, probetext-0x10000 |
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541 | call printplain |
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542 | mov bx, '12' |
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543 | call getkey |
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544 | mov [preboot_gprobe-0x10000], al |
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545 | @@: |
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546 | _setcursor 10,0 |
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547 | jmp .d |
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548 | .change_b: |
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549 | _setcursor 15,0 |
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550 | mov si, gr_acc-0x10000 |
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40 | halyavin | 551 | call print |
29 | halyavin | 552 | mov bx, '12' |
553 | call getkey |
||
554 | mov [preboot_mtrr-0x10000], al |
||
555 | _setcursor 11,0 |
||
556 | jmp .d |
||
557 | .change_c: |
||
558 | _setcursor 15,0 |
||
559 | mov si, vrrmprint-0x10000 |
||
40 | halyavin | 560 | call print |
29 | halyavin | 561 | mov bx, '12' |
562 | call getkey |
||
563 | mov [preboot_vrrm-0x10000], al |
||
564 | _setcursor 12,0 |
||
565 | jmp .d |
||
40 | halyavin | 566 | .say_on_off: |
567 | pushf |
||
568 | call print |
||
569 | mov si, on_msg-0x10000 |
||
570 | popf |
||
571 | jz @f |
||
572 | mov si, off_msg-0x10000 |
||
573 | @@: call printplain |
||
574 | ret |
||
575 | ; novesa and vervesa strings are not used at the moment of executing this code |
||
576 | virtual at novesa |
||
29 | halyavin | 577 | .oldtimer dd ? |
578 | .starttime dd ? |
||
579 | .bSettingsChanged db ? |
||
34 | halyavin | 580 | .timer dd ? |
40 | halyavin | 581 | end virtual |
29 | halyavin | 582 | .loader_block dd 0 |
583 | .gettime: |
||
584 | mov ah, 0 |
||
585 | int 1Ah |
||
586 | xchg ax, cx |
||
587 | shl eax, 10h |
||
588 | xchg ax, dx |
||
589 | ret |
||
590 | .newtimer: |
||
591 | push ds |
||
592 | push cs |
||
593 | pop ds |
||
594 | pushf |
||
595 | call [.oldtimer-0x10000] |
||
596 | pushad |
||
597 | call .gettime |
||
598 | sub eax, [.starttime-0x10000] |
||
599 | sub ax, 18*5 |
||
600 | jae .timergo |
||
601 | neg ax |
||
602 | add ax, 18-1 |
||
603 | mov bx, 18 |
||
604 | xor dx, dx |
||
605 | div bx |
||
606 | if lang eq ru |
||
607 | ; ¯®¤®¦¤¨â¥ 5 ᥪã¤, 4/3/2 ᥪã¤ë, 1 ᥪã¤ã |
||
608 | cmp al, 5 |
||
609 | mov cl, ' ' |
||
610 | jae @f |
||
611 | cmp al, 1 |
||
612 | mov cl, 'ã' |
||
613 | jz @f |
||
614 | mov cl, 'ë' |
||
615 | @@: mov [time_str+9-0x10000], cl |
||
616 | else |
||
617 | ; wait 5/4/3/2 seconds, 1 second |
||
618 | cmp al, 1 |
||
619 | mov cl, 's' |
||
620 | ja @f |
||
621 | mov cl, ' ' |
||
622 | @@: mov [time_str+9-0x10000], cl |
||
623 | end if |
||
624 | add al, '0' |
||
625 | mov [time_str+1-0x10000], al |
||
626 | mov si, time_msg-0x10000 |
||
627 | _setcursor 7,0 |
||
628 | call print |
||
629 | _setcursor 25,0 |
||
630 | popad |
||
631 | pop ds |
||
632 | iret |
||
633 | .timergo: |
||
634 | push 0 |
||
635 | pop es |
||
636 | mov eax, [.oldtimer-0x10000] |
||
637 | mov [es:8*4], eax |
||
638 | mov sp, 0EC00h |
||
639 | .continue: |
||
640 | sti |
||
641 | _setcursor 6,0 |
||
642 | mov si, space_msg-0x10000 |
||
643 | call printplain |
||
644 | call printplain |
||
645 | _setcursor 6,0 |
||
646 | mov si, loading_msg-0x10000 |
||
647 | call print |
||
648 | _setcursor 15,0 |
||
649 | cmp [.bSettingsChanged-0x10000], 0 |
||
650 | jz .load |
||
651 | cmp [.loader_block-0x10000], 0 |
||
652 | jz .load |
||
653 | les bx, [.loader_block-0x10000] |
||
654 | mov eax, [es:bx+3] |
||
655 | push ds |
||
656 | pop es |
||
657 | test eax, eax |
||
658 | jz .load |
||
659 | push eax |
||
660 | mov si, save_quest-0x10000 |
||
661 | call print |
||
662 | .waityn: |
||
663 | mov ah, 0 |
||
664 | int 16h |
||
665 | or al, 20h |
||
666 | cmp al, 'n' |
||
667 | jz .loadc |
||
668 | cmp al, 'y' |
||
669 | jnz .waityn |
||
670 | call putchar |
||
34 | halyavin | 671 | mov byte [space_msg-0x10000+80], 186 |
29 | halyavin | 672 | pop eax |
673 | push cs |
||
674 | push .cont-0x10000 |
||
675 | push eax |
||
676 | retf |
||
677 | .loadc: |
||
678 | pop eax |
||
679 | .cont: |
||
680 | push cs |
||
681 | pop ds |
||
40 | halyavin | 682 | mov si, space_msg-0x10000 |
683 | mov byte [si+80], 0 |
||
29 | halyavin | 684 | _setcursor 15,0 |
685 | call printplain |
||
686 | _setcursor 15,0 |
||
687 | .load: |
||
688 | ; \end{diamond}[02.12.2005] |
||
1 | ha | 689 | |
690 | ; ASK GRAPHICS MODE |
||
691 | |||
29 | halyavin | 692 | movzx ax, [preboot_graph-0x10000] |
693 | push 0 |
||
694 | pop es |
||
695 | ; address is gr_table+6*(ax-1)-0x10000 |
||
696 | add ax, ax |
||
697 | lea si, [gr_table-0x10000 + eax + eax*2 - 6] |
||
698 | mov bx,[si+0] |
||
699 | mov cx,[si+2] |
||
700 | mov dx,[si+4] |
||
701 | cmp al, 9*2 |
||
40 | halyavin | 702 | mov al, 32 ; BPP |
29 | halyavin | 703 | jb @f |
40 | halyavin | 704 | mov [es:0x9000], al |
29 | halyavin | 705 | mov dword [es:0x9018], 0x800000 |
706 | @@: |
||
1 | ha | 707 | mov [es:0x9008],bx |
708 | mov [es:0x900A],cx |
||
709 | mov [es:0x900C],dx |
||
29 | halyavin | 710 | test bh, bh |
711 | jz nov |
||
1 | ha | 712 | |
713 | ; USE DEFAULTS OR PROBE |
||
714 | |||
715 | ; bx - mode : cx - x size : dx - y size |
||
40 | halyavin | 716 | cmp [preboot_gprobe-0x10000], 1 |
717 | jz noprobe |
||
1 | ha | 718 | |
719 | mov bx,0x100 |
||
720 | newprobe: |
||
721 | inc bx |
||
722 | cmp bx,0x17f |
||
40 | halyavin | 723 | mov si,prnotfnd-0x10000 |
724 | jz sayerr |
||
1 | ha | 725 | |
726 | probemore: |
||
40 | halyavin | 727 | push cx |
1 | ha | 728 | mov ax,0x4f01 |
729 | mov cx,bx |
||
730 | and cx,0xfff |
||
731 | mov di,0xa000 |
||
732 | int 0x10 |
||
40 | halyavin | 733 | pop cx |
1 | ha | 734 | |
29 | halyavin | 735 | test byte [es:di], 80h ; lfb? |
736 | jz newprobe |
||
40 | halyavin | 737 | cmp [es:di+0x12], cx ; x size? |
29 | halyavin | 738 | jnz newprobe |
739 | cmp [es:di+0x14], dx ; y size? |
||
740 | jnz newprobe |
||
741 | cmp byte [es:di+0x19], 32 ;24 |
||
742 | jb newprobe |
||
1 | ha | 743 | |
40 | halyavin | 744 | ; add bx,0100000000000000b |
745 | or bh, 40h |
||
1 | ha | 746 | mov [es:0x9008],bx |
747 | |||
748 | noprobe: |
||
749 | |||
750 | |||
751 | ; FIND VESA 2.0 LFB & BPP |
||
752 | |||
753 | mov ax,0x4f01 |
||
754 | mov cx,bx |
||
755 | and cx,0xfff |
||
756 | mov di,0xa000 |
||
757 | int 0x10 |
||
758 | ; LFB |
||
40 | halyavin | 759 | mov eax,[es:di+0x28] |
760 | mov [es:0x9018],eax |
||
1 | ha | 761 | ; ---- vbe voodoo |
762 | BytesPerScanLine equ 0x10 |
||
763 | mov ax, [es:di+BytesPerScanLine] |
||
764 | mov [es:0x9001],ax |
||
29 | halyavin | 765 | ; BPP |
40 | halyavin | 766 | mov al,byte [es:di+0x19] |
29 | halyavin | 767 | mov [es:0x9000],al |
1 | ha | 768 | nov: |
40 | halyavin | 769 | cmp al,24 |
29 | halyavin | 770 | mov si,bt24-0x10000 |
771 | jz bppl |
||
40 | halyavin | 772 | cmp al,32 |
1 | ha | 773 | mov si,bt32-0x10000 |
29 | halyavin | 774 | jz bppl |
1 | ha | 775 | mov si,btns-0x10000 |
40 | halyavin | 776 | jmp sayerr |
777 | bppl: |
||
1 | ha | 778 | call print |
779 | |||
780 | |||
781 | ; FIND VESA 1.2 PM BANK SWITCH ADDRESS |
||
782 | |||
29 | halyavin | 783 | push es |
1 | ha | 784 | mov ax,0x4f0A |
29 | halyavin | 785 | xor bx, bx |
1 | ha | 786 | int 0x10 |
787 | xor eax,eax |
||
788 | mov ax,es |
||
789 | shl eax,4 |
||
29 | halyavin | 790 | movzx ebx,di |
1 | ha | 791 | add eax,ebx |
792 | mov bx,[es:di] |
||
793 | add eax,ebx |
||
794 | pop es |
||
795 | mov [es:0x9014],eax |
||
796 | |||
797 | |||
798 | ; GRAPHICS ACCELERATION |
||
799 | |||
29 | halyavin | 800 | mov al, [preboot_mtrr-0x10000] |
1 | ha | 801 | mov [es:0x901C],al |
802 | |||
803 | ; VRR_M USE |
||
804 | |||
29 | halyavin | 805 | mov al,[preboot_vrrm-0x10000] |
1 | ha | 806 | mov [es:0x9030],al |
807 | |||
808 | |||
809 | ; MEMORY MODEL |
||
810 | |||
811 | ; movzx eax,byte [es:preboot_memory-0x10000] |
||
812 | ; cmp eax,0 |
||
813 | ; jne pre_mem |
||
814 | ;;;;;;;;;;;;;;;;;;;;;;;;; |
||
815 | ; mario79 - memory size ; |
||
816 | ;;;;;;;;;;;;;;;;;;;;;;;;; |
||
817 | ; mov ax,0E801h |
||
818 | ;;; xor bx,bx ; thanks to Alexei for bugfix [18.07.2004] |
||
819 | ; xor cx, cx |
||
820 | ; xor dx, dx |
||
821 | ; int 0x15 |
||
822 | ; movzx ebx, dx ;bx |
||
823 | ; movzx eax, cx ;ax |
||
824 | ; shl ebx,6 ; ïåðåâîä â êèëîáàéòû (x64) |
||
825 | ; add eax,ebx |
||
826 | ; add eax, 1000h ;440h |
||
827 | ; cmp eax,40000h ; 256? |
||
828 | ; jge mem_256_z |
||
829 | ; cmp eax,20000h ; 128? |
||
830 | ; jge mem_128_z |
||
831 | ; cmp eax,10000h ; 64? |
||
832 | ; jge mem_64_z |
||
833 | ; cmp eax,8000h ; 32? |
||
834 | ; jge mem_32_z |
||
835 | ; jmp mem_16_z |
||
836 | ; |
||
837 | ;mem_256_z: mov si,memokz256-0x10000 |
||
838 | ; call printplain |
||
839 | ; mov eax,5 |
||
840 | ; jmp pre_mem |
||
841 | ;mem_128_z: mov si,memokz128-0x10000 |
||
842 | ; call printplain |
||
843 | ; mov eax,4 |
||
844 | ; jmp pre_mem |
||
845 | ;mem_64_z: mov si,memokz64-0x10000 |
||
846 | ; call printplain |
||
847 | ; mov eax,3 |
||
848 | ; jmp pre_mem |
||
849 | ;mem_32_z: mov si,memokz32-0x10000 |
||
850 | ; call printplain |
||
851 | ; mov eax,2 |
||
852 | ; jmp pre_mem |
||
853 | ;mem_16_z: mov si,memokz16-0x10000 |
||
854 | ; call printplain |
||
855 | ; mov eax,1 |
||
856 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
857 | ; pre_mem: |
||
858 | ; push word 0x0000 |
||
859 | ; pop es |
||
860 | ; mov [es:0x9030],al |
||
861 | ; push word 0x1000 |
||
862 | ; pop es |
||
863 | ; mov si,linef-0x10000 |
||
864 | ; call printplain |
||
865 | |||
866 | |||
867 | |||
868 | |||
869 | ; DIRECT WRITE TO LFB, PAGING DISABLED |
||
870 | |||
871 | ; movzx eax,byte [es:preboot_lfb-0x10000] |
||
872 | ; mov eax,1 ; paging disabled |
||
873 | ; cmp eax,0 |
||
874 | ; jne pre_lfb |
||
875 | ; mov si,gr_direct-0x10000 |
||
876 | ; call printplain |
||
29 | halyavin | 877 | ; mov ebx,'12' |
1 | ha | 878 | ; call getkey |
879 | ; pre_lfb: |
||
880 | ; push word 0x0000 |
||
881 | ; pop es |
||
882 | ; mov [es:0x901E],al |
||
883 | ; mov ax,0x1000 |
||
884 | ; mov es,ax |
||
885 | ; mov si,linef-0x10000 |
||
886 | ; call printplain |
||
887 | mov [es:0x901E],byte 1 |
||
888 | |||
889 | |||
890 | |||
891 | ; BOOT DEVICE |
||
892 | |||
29 | halyavin | 893 | mov al, [preboot_device-0x10000] |
40 | halyavin | 894 | dec al |
29 | halyavin | 895 | mov [boot_dev-0x10000],al |
1 | ha | 896 | |
897 | ; READ DISKETTE TO MEMORY |
||
898 | |||
40 | halyavin | 899 | ; cmp [boot_dev-0x10000],0 |
1 | ha | 900 | jne no_sys_on_floppy |
901 | mov si,diskload-0x10000 |
||
902 | call print |
||
29 | halyavin | 903 | xor ax, ax ; reset drive |
904 | xor dx, dx |
||
1 | ha | 905 | int 0x13 |
906 | mov cx,0x0001 ; startcyl,startsector |
||
29 | halyavin | 907 | xor dx, dx ; starthead,drive |
1 | ha | 908 | push word 80*2 ; read no of sect |
909 | reads: |
||
910 | pusha |
||
911 | xor si,si |
||
912 | newread: |
||
913 | mov bx,0xa000 ; es:bx -> data area |
||
914 | mov ax,0x0200+18 ; read, no of sectors to read |
||
915 | int 0x13 |
||
29 | halyavin | 916 | test ah, ah |
1 | ha | 917 | jz goodread |
29 | halyavin | 918 | inc si |
1 | ha | 919 | cmp si,10 |
920 | jnz newread |
||
921 | mov si,badsect-0x10000 |
||
40 | halyavin | 922 | sayerr_plain: |
1 | ha | 923 | call printplain |
924 | jmp $ |
||
925 | goodread: |
||
926 | ; move -> 1mb |
||
927 | mov si,movedesc-0x10000 |
||
29 | halyavin | 928 | push es |
929 | push ds |
||
1 | ha | 930 | pop es |
931 | mov cx,256*18 |
||
932 | mov ah,0x87 |
||
933 | int 0x15 |
||
29 | halyavin | 934 | pop es |
1 | ha | 935 | |
29 | halyavin | 936 | test ah,ah ; was the move successfull ? |
1 | ha | 937 | je goodmove |
938 | mov dx,0x3f2 ; floppy motor off |
||
939 | mov al,0 |
||
940 | out dx,al |
||
941 | mov si,memmovefailed-0x10000 |
||
40 | halyavin | 942 | jmp sayerr_plain |
1 | ha | 943 | goodmove: |
944 | |||
29 | halyavin | 945 | add dword [movedesc-0x10000+0x18+2], 512*18 |
1 | ha | 946 | popa |
947 | inc dh |
||
948 | cmp dh,2 |
||
949 | jnz bb2 |
||
950 | mov dh,0 |
||
951 | inc ch |
||
952 | pusha ; print prosentage |
||
953 | mov si,pros-0x10000 |
||
29 | halyavin | 954 | shr ch, 2 |
955 | mov al, '5' |
||
956 | test ch, 1 |
||
957 | jnz @f |
||
958 | mov al, '0' |
||
959 | @@: |
||
960 | mov [si+1], al |
||
961 | shr ch, 1 |
||
962 | add ch, '0' |
||
963 | mov [si], ch |
||
1 | ha | 964 | call printplain |
965 | popa |
||
966 | bb2: |
||
967 | pop ax |
||
968 | dec ax |
||
969 | push ax |
||
29 | halyavin | 970 | jnz reads |
1 | ha | 971 | readdone: |
972 | pop ax |
||
40 | halyavin | 973 | mov si,backspace2-0x10000 |
1 | ha | 974 | call printplain |
975 | mov si,okt-0x10000 |
||
976 | call printplain |
||
977 | no_sys_on_floppy: |
||
29 | halyavin | 978 | xor ax, ax ; reset drive |
979 | xor dx, dx |
||
1 | ha | 980 | int 0x13 |
981 | mov dx,0x3f2 ; floppy motor off |
||
982 | mov al,0 |
||
29 | halyavin | 983 | out dx,al |
1 | ha | 984 | |
29 | halyavin | 985 | push es |
1 | ha | 986 | ; PAGE TABLE |
987 | |||
29 | halyavin | 988 | push dword [es:0x9018] |
1 | ha | 989 | |
990 | map_mem equ 64 ; amount of memory to map |
||
991 | |||
29 | halyavin | 992 | push 0x6000 |
993 | pop es ; es:di = 6000:0 |
||
994 | xor di,di |
||
995 | mov cx,256*map_mem ; Map (mapmem) M |
||
40 | halyavin | 996 | ; mov eax,7 |
997 | ; pt2: |
||
998 | ; cmp cx,256*(map_mem-8) ; 8 M map to LFB |
||
999 | ; jnz pt3 |
||
1000 | ; pop eax |
||
1001 | ; add eax,7 |
||
1002 | ; pt3: |
||
1003 | ; cmp cx,256*(map_mem-12) ; 12 M back to linear = physical |
||
1004 | ; jnz pt4 |
||
1005 | ; mov eax,12*0x100000 + 7 |
||
1006 | ; pt4: |
||
1007 | ; stosd |
||
1008 | ; add eax,4096 |
||
1009 | ; loop pt2 |
||
1010 | ; initialize as identity mapping |
||
1011 | xor eax, eax |
||
1012 | call pagetable_set |
||
1013 | ; 8M..12M map to LFB |
||
1014 | pop eax |
||
1015 | ; mov cx, 256*4 |
||
1016 | mov ch, 4 |
||
1017 | mov di, 2000h |
||
1018 | call pagetable_set |
||
1019 | |||
29 | halyavin | 1020 | push 0x7100 |
1021 | pop es |
||
1022 | xor di,di |
||
40 | halyavin | 1023 | mov eax,8*0x100000 |
29 | halyavin | 1024 | mov cx,256*4 |
40 | halyavin | 1025 | call pagetable_set |
1 | ha | 1026 | |
1027 | ; 4 KB PAGE DIRECTORY |
||
1028 | |||
29 | halyavin | 1029 | push 0x7F00 |
1030 | pop es ; es:di = 7F00:0 |
||
1031 | xor di, di |
||
1032 | mov cx, 64 / 4 |
||
1 | ha | 1033 | mov eax, 0x60007 ; for 0 M |
40 | halyavin | 1034 | call pagetable_set |
1 | ha | 1035 | mov dword [es:0x800],0x71007 ;map region 0x80000000-0x803FFFFF to 0x800000-0xCFFFFF |
29 | halyavin | 1036 | xor si,si |
1037 | mov di,second_base_address shr 20 |
||
40 | halyavin | 1038 | mov cx,64/2 |
1039 | rep movs word [es:di], [es:si] |
||
1 | ha | 1040 | |
1041 | mov eax, 0x7F000 +8+16 ; Page directory and enable caches |
||
1042 | mov cr3, eax |
||
1043 | |||
1044 | ; SET GRAPHICS |
||
1045 | |||
29 | halyavin | 1046 | pop es |
40 | halyavin | 1047 | mov ax,[es:0x9008] ; vga & 320x200 |
1048 | mov bx, ax |
||
1 | ha | 1049 | cmp ax,0x13 |
1050 | je setgr |
||
1051 | cmp ax,0x12 |
||
1052 | je setgr |
||
1053 | mov ax,0x4f02 ; Vesa |
||
1054 | setgr: |
||
1055 | int 0x10 |
||
29 | halyavin | 1056 | test ah,ah |
40 | halyavin | 1057 | mov si, fatalsel-0x10000 |
1058 | jnz sayerr |
||
1 | ha | 1059 | ; set mode 0x12 graphics registers: |
1060 | cmp bx,0x12 |
||
1061 | jne gmok2 |
||
1062 | |||
1063 | mov al,0x05 |
||
1064 | mov dx,0x03ce |
||
40 | halyavin | 1065 | push dx |
1 | ha | 1066 | out dx,al ; select GDC mode register |
1067 | mov al,0x02 |
||
29 | halyavin | 1068 | inc dx |
1 | ha | 1069 | out dx,al ; set write mode 2 |
1070 | |||
1071 | mov al,0x02 |
||
1072 | mov dx,0x03c4 |
||
1073 | out dx,al ; select VGA sequencer map mask register |
||
1074 | mov al,0x0f |
||
29 | halyavin | 1075 | inc dx |
1 | ha | 1076 | out dx,al ; set mask for all planes 0-3 |
1077 | |||
1078 | mov al,0x08 |
||
40 | halyavin | 1079 | pop dx |
1 | ha | 1080 | out dx,al ; select GDC bit mask register |
1081 | ; for writes to 0x03cf |
||
1082 | |||
1083 | gmok2: |
||
29 | halyavin | 1084 | push ds |
1085 | pop es |