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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 | |||
142 | ; 16-bit data |
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143 | ; videomodes table |
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144 | gr_table: |
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145 | dw 0x112+0100000000000000b , 640 , 480 ; 1 |
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146 | dw 0x115+0100000000000000b , 800 , 600 ; 2 |
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147 | dw 0x118+0100000000000000b , 1024 , 768 ; 3 |
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148 | dw 0x11B+0100000000000000b , 1280 , 1024 ; 4 |
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149 | dw 0x112 , 640 , 480 ; 5 |
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150 | dw 0x115 , 800 , 600 ; 6 |
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151 | dw 0x118 , 1024 , 768 ; 7 |
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152 | dw 0x11B , 1280 ,1024 ; 8 |
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153 | dw 0x13, 320, 200 ; 9 |
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154 | dw 0x12, 640, 480 ; 0 |
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155 | |||
156 | ; table for move to extended memory (int 15h, ah=87h) |
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157 | movedesc: |
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158 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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159 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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160 | |||
161 | db 0xff,0xff,0x0,0xa0,0x00,0x93,0x0,0x0 |
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162 | db 0xff,0xff,0x0,0x00,0x10,0x93,0x0,0x0 |
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163 | |||
164 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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165 | db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
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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 | |||
1 | ha | 169 | ;========================================================================= |
170 | ; |
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171 | ; 16 BIT CODE |
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172 | ; |
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173 | ;========================================================================= |
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174 | |||
175 | |||
176 | start_of_code: |
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29 | halyavin | 177 | cld |
178 | ; \begin{diamond}[02.12.2005] |
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179 | cmp ax, 'KL' |
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180 | jnz @f |
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181 | mov word [cs:cfgmanager.loader_block-0x10000], si |
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182 | mov word [cs:cfgmanager.loader_block+2-0x10000], ds |
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183 | @@: |
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184 | ; \end{diamond}[02.12.2005] |
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1 | ha | 185 | |
29 | halyavin | 186 | ; set up stack |
187 | mov ax, 3000h |
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188 | mov ss, ax |
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189 | mov sp, 0EC00h |
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190 | ; set up segment registers |
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191 | push cs |
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192 | pop ds |
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193 | push cs |
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194 | pop es |
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1 | ha | 195 | |
29 | halyavin | 196 | ; set videomode |
197 | mov ax, 3 |
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1 | ha | 198 | int 0x10 |
199 | |||
200 | ; Load & set russian VGA font (RU.INC) |
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201 | mov bp,RU_FNT1-10000h ; RU_FNT1 - First part |
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202 | mov bx,1000h ; 768 bytes |
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203 | mov cx,30h ; 48 symbols |
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204 | mov dx,80h ; 128 - position of first symbol |
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205 | mov ax,1100h |
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206 | int 10h |
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207 | |||
208 | mov bp,RU_FNT2-10000h ; RU_FNT2 -Second part |
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209 | mov bx,1000h ; 512 bytes |
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210 | mov cx,20h ; 32 symbols |
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211 | mov dx,0E0h ; 224 - position of first symbol |
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212 | mov ax,1100h |
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213 | int 10h |
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214 | ; End set VGA russian font |
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215 | |||
29 | halyavin | 216 | ; draw frames |
217 | push 0xb800 |
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218 | pop es |
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219 | xor di, di |
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220 | ; mov si,d80x25-0x10000 |
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221 | ; mov cx,80*25 |
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222 | ; mov ah,1*16+15 |
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223 | ; dfl1: |
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224 | ; lodsb |
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225 | ; stosw |
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226 | ; loop dfl1 |
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227 | mov ah, 1*16+15 |
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228 | ; draw top |
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229 | mov si, d80x25_top - 0x10000 |
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230 | mov cx, d80x25_top_num * 80 |
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231 | @@: |
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232 | lodsb |
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233 | stosw |
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234 | loop @b |
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235 | ; draw spaces |
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236 | mov si, space_msg - 0x10000 |
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237 | mov cx, 25 - d80x25_top_num - d80x25_bottom_num |
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238 | dfl1: |
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239 | push cx |
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240 | push si |
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241 | mov cx, 80 |
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242 | @@: |
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243 | lodsb |
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244 | stosw |
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245 | loop @b |
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246 | pop si |
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247 | pop cx |
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248 | loop dfl1 |
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249 | ; draw bottom |
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250 | mov si, d80x25_bottom - 0x10000 |
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251 | mov cx, d80x25_bottom_num * 80 |
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252 | @@: |
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253 | lodsb |
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254 | stosw |
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255 | loop @b |
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1 | ha | 256 | |
29 | halyavin | 257 | mov byte [space_msg-0x10000+80], 0 ; now space_msg is null terminated |
1 | ha | 258 | |
29 | halyavin | 259 | _setcursor d80x25_top_num,0 |
1 | ha | 260 | |
261 | |||
262 | ; TEST FOR 386+ |
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263 | |||
29 | halyavin | 264 | mov bx, 0x4000 |
1 | ha | 265 | pushf |
266 | pop ax |
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267 | mov dx,ax |
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29 | halyavin | 268 | xor ax,bx |
1 | ha | 269 | push ax |
270 | popf |
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271 | pushf |
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272 | pop ax |
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29 | halyavin | 273 | and ax,bx |
274 | and dx,bx |
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1 | ha | 275 | cmp ax,dx |
276 | jnz cpugood |
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277 | mov si,not386-0x10000 |
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278 | call print |
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279 | jmp $ |
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280 | cpugood: |
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281 | |||
29 | halyavin | 282 | ; set up esp |
283 | movzx esp, sp |
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1 | ha | 284 | |
285 | ; FLUSH 8042 KEYBOARD CONTROLLER |
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286 | |||
287 | ;// mike.dld [ |
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288 | ; mov al,0xED |
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289 | ; out 0x60,al |
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290 | ; or cx,-1 |
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291 | ; @@: |
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292 | ; in al,0x64 |
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293 | ; test al,2 |
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294 | ; jz @f |
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295 | ; loop @b |
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296 | ; @@: |
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297 | ; mov al,0 |
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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 | ;// mike.dld ] |
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307 | |||
308 | ; mov ecx,10000 |
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309 | ; fl1: |
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310 | ; in al,0x64 |
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311 | ; loop fl1 |
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312 | ; test al,1 |
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313 | ; jz fl2 |
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314 | ; in al,0x60 |
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315 | ; jmp fl1 |
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316 | ; fl2: |
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317 | |||
318 | ;**************************************************************** |
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319 | ; The function is modified Mario79 |
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320 | ;***************************************************************** |
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321 | ; wait_kbd: ; variant 1 |
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322 | ; mov cx,2500h ;задержка порядка 10 мсек |
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323 | ; test_kbd: |
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324 | ; in al,64h ;читаем состояние клавиатуры |
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325 | ; test al,2 ;проверка бита готовности |
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326 | ; loopnz test_kbd |
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327 | |||
328 | mov al,0xf6 ; Сброс клавиатуры, разрешить сканирование |
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329 | out 0x60,al |
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29 | halyavin | 330 | xor cx,cx |
1 | ha | 331 | wait_loop: ; variant 2 |
332 | ; reading state of port of 8042 controller |
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333 | in al,64h |
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334 | and al,00000010b ; ready flag |
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335 | ; wait until 8042 controller is ready |
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336 | loopnz wait_loop |
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337 | |||
338 | ; DISPLAY VESA INFORMATION |
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339 | |||
29 | halyavin | 340 | push 0 |
341 | pop es |
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1 | ha | 342 | mov ax,0x4f00 |
343 | mov di,0xa000 |
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344 | int 0x10 |
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345 | cmp ax,0x004f |
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29 | halyavin | 346 | mov si, novesa-0x10000 |
347 | jnz @f |
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1 | ha | 348 | mov ax,[es:di+4] |
349 | add ax,'0'*256+'0' |
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29 | halyavin | 350 | mov [vervesa+vervesa_off-0x10000], ah |
351 | mov [vervesa+vervesa_off+2-0x10000], al |
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1 | ha | 352 | mov si,vervesa-0x10000 |
29 | halyavin | 353 | @@: call print |
1 | ha | 354 | |
29 | halyavin | 355 | ; \begin{diamond}[30.11.2005] |
356 | cfgmanager: |
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357 | ; settings: |
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358 | ; a) preboot_graph = graphical mode |
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359 | ; preboot_gprobe = probe this mode? |
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360 | ; b) preboot_mtrr = use hardware acceleration? |
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361 | ; c) preboot_vrrm = use VRR? |
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362 | ; d) preboot_device = from what boot? |
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363 | mov si, preboot_graph-0x10000 |
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364 | ; check bootloader block |
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365 | cmp [.loader_block-0x10000], 0 |
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366 | jz .noloaderblock |
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367 | les bx, [.loader_block-0x10000] |
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368 | cmp byte [es:bx], 1 |
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369 | jz @f |
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370 | mov si, loader_block_error-0x10000 |
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371 | call print |
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372 | jmp $ |
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373 | @@: |
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374 | test byte [es:bx+1], 1 |
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375 | jz @f |
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376 | ; image in memory present |
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377 | cmp [si+preboot_device-preboot_graph], 0 |
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378 | jnz @f |
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379 | mov [si+preboot_device-preboot_graph], 3 |
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380 | @@: |
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381 | .noloaderblock: |
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382 | ; determine default settings |
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383 | mov [.bSettingsChanged-0x10000], 0 |
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384 | cmp byte [si], 0 |
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385 | jnz .preboot_gr_end |
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386 | mov [si+preboot_gprobe-preboot_graph], 0 |
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387 | mov al, [vervesa+vervesa_off-0x10000] |
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388 | cmp al, 'x' |
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389 | jz .novesa |
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390 | cmp al, '1' |
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391 | jz .vesa12 |
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392 | mov [si+preboot_gprobe-preboot_graph], 2 |
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393 | mov al, 3 |
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394 | jmp @f |
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395 | .vesa12: |
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396 | mov al, 7 |
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397 | jmp @f |
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398 | .novesa: |
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399 | mov al, 10 |
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400 | @@: |
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401 | mov [si], al |
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402 | .preboot_gr_end: |
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403 | cmp [si+preboot_mtrr-preboot_graph], 1 |
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404 | adc [si+preboot_mtrr-preboot_graph], 0 |
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405 | cmp [si+preboot_vrrm-preboot_graph], 1 |
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406 | adc [si+preboot_vrrm-preboot_graph], 0 |
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407 | cmp [si+preboot_device-preboot_graph], 1 |
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408 | adc [si+preboot_device-preboot_graph], 0 |
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409 | ; notify user |
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410 | mov si, linef-0x10000 |
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411 | call print |
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412 | mov si, start_msg-0x10000 |
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413 | call print |
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414 | mov si, time_msg-0x10000 |
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415 | call print |
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416 | ; get start time |
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417 | call .gettime |
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418 | mov [.starttime-0x10000], eax |
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34 | halyavin | 419 | mov word [.timer-0x10000], .newtimer-0x10000 |
420 | mov word [.timer-0x10000+2], cs |
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29 | halyavin | 421 | .printcfg: |
422 | _setcursor 9,0 |
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423 | mov si, current_cfg_msg-0x10000 |
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424 | call print |
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425 | mov si, curvideo_msg-0x10000 |
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426 | call print |
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427 | mov al, [preboot_graph-0x10000] |
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428 | cmp al, 8 |
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429 | ja .pnovesa |
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430 | mov dl, al |
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431 | and eax, 3 |
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432 | mov si, [modes_msg-0x10000+eax*2] |
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433 | call printplain |
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434 | mov si, modevesa20-0x10000 |
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435 | cmp dl, 4 |
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436 | jbe @f |
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437 | mov si, modevesa12-0x10000 |
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438 | @@: |
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439 | call printplain |
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440 | cmp dl, 4 |
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441 | ja .x |
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442 | mov si, probeno_msg-0x10000 |
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443 | cmp [preboot_gprobe-0x10000], 2 |
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444 | jnz @f |
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445 | mov si, probeok_msg-0x10000 |
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446 | @@: |
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447 | call printplain |
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448 | .x: |
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449 | jmp .c |
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450 | .pnovesa: |
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451 | cmp al, 9 |
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452 | mov si, mode9-0x10000 |
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453 | jz @b |
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454 | mov si, mode10-0x10000 |
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455 | jmp @b |
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456 | .c: |
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457 | mov si, linef-0x10000 |
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458 | call printplain |
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459 | mov si, mtrr_msg-0x10000 |
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460 | call print |
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461 | mov si, on_msg-0x10000 |
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462 | cmp [preboot_mtrr-0x10000], 1 |
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463 | jz @f |
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464 | mov si, off_msg-0x10000 |
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465 | @@: |
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466 | call printplain |
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467 | mov si, vrrm_msg-0x10000 |
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468 | call print |
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469 | mov si, on_msg-0x10000 |
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470 | cmp [preboot_vrrm-0x10000], 1 |
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471 | jz @f |
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472 | mov si, off_msg-0x10000 |
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473 | @@: |
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474 | call printplain |
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475 | mov si, preboot_device_msg-0x10000 |
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476 | call print |
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477 | mov al, [preboot_device-0x10000] |
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478 | and eax, 3 |
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479 | mov si, [preboot_device_msgs-0x10000+eax*2] |
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480 | call printplain |
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481 | .wait: |
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482 | ; empty BIOS keyboard buffer |
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483 | _setcursor 25,0 ; out of screen |
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34 | halyavin | 484 | ; set timer interrupt handler |
485 | cli |
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486 | push 0 |
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487 | pop es |
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488 | mov eax, [es:8*4] |
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489 | mov [.oldtimer-0x10000], eax |
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490 | mov eax, [.timer-0x10000] |
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491 | mov [es:8*4], eax |
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492 | sti |
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29 | halyavin | 493 | ; wait for keypressed |
494 | mov ah, 0 |
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495 | int 16h |
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496 | push ax |
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497 | ; restore timer interrupt |
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498 | push 0 |
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499 | pop es |
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500 | mov ecx, [.oldtimer-0x10000] |
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501 | mov [es:8*4], ecx |
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34 | halyavin | 502 | mov [.timer-0x10000], ecx |
29 | halyavin | 503 | _setcursor 7,0 |
504 | mov si, space_msg-0x10000 |
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505 | call printplain |
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506 | pop ax |
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507 | ; switch on key |
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508 | cmp al, 13 |
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509 | jz .continue |
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510 | or al, 20h |
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511 | cmp al, 'a' |
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512 | jz .change_a |
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513 | cmp al, 'b' |
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514 | jz .change_b |
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515 | cmp al, 'c' |
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516 | jz .change_c |
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517 | cmp al, 'd' |
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518 | jnz .wait |
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519 | _setcursor 15,0 |
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520 | mov si,bdev-0x10000 |
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521 | call printplain |
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522 | mov bx,'13' |
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523 | call getkey |
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524 | mov [preboot_device-0x10000], al |
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525 | _setcursor 13,0 |
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526 | .d: |
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527 | mov [.bSettingsChanged-0x10000], al |
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528 | mov si, space_msg-0x10000 |
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529 | call printplain |
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530 | _setcursor 15,0 |
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531 | mov cx, 6 |
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532 | @@: |
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533 | call printplain |
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534 | loop @b |
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535 | jmp .printcfg |
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536 | .change_a: |
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537 | _setcursor 15,0 |
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538 | mov si, gr_mode-0x10000 |
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539 | call printplain |
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540 | mov bx, '09' |
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541 | call getkey |
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542 | mov [preboot_graph-0x10000], al |
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543 | cmp al, 4 |
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544 | ja @f |
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545 | mov si, probetext-0x10000 |
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546 | call printplain |
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547 | mov bx, '12' |
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548 | call getkey |
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549 | mov [preboot_gprobe-0x10000], al |
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550 | @@: |
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551 | _setcursor 10,0 |
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552 | jmp .d |
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553 | .change_b: |
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554 | _setcursor 15,0 |
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555 | mov si, gr_acc-0x10000 |
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556 | call printplain |
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557 | mov bx, '12' |
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558 | call getkey |
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559 | mov [preboot_mtrr-0x10000], al |
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560 | _setcursor 11,0 |
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561 | jmp .d |
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562 | .change_c: |
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563 | _setcursor 15,0 |
||
564 | mov si, vrrmprint-0x10000 |
||
565 | call printplain |
||
566 | mov bx, '12' |
||
567 | call getkey |
||
568 | mov [preboot_vrrm-0x10000], al |
||
569 | _setcursor 12,0 |
||
570 | jmp .d |
||
571 | .oldtimer dd ? |
||
572 | .starttime dd ? |
||
573 | .bSettingsChanged db ? |
||
34 | halyavin | 574 | .timer dd ? |
29 | halyavin | 575 | .loader_block dd 0 |
576 | .gettime: |
||
577 | mov ah, 0 |
||
578 | int 1Ah |
||
579 | xchg ax, cx |
||
580 | shl eax, 10h |
||
581 | xchg ax, dx |
||
582 | ret |
||
583 | .newtimer: |
||
584 | push ds |
||
585 | push cs |
||
586 | pop ds |
||
587 | pushf |
||
588 | call [.oldtimer-0x10000] |
||
589 | pushad |
||
590 | call .gettime |
||
591 | sub eax, [.starttime-0x10000] |
||
592 | sub ax, 18*5 |
||
593 | jae .timergo |
||
594 | neg ax |
||
595 | add ax, 18-1 |
||
596 | mov bx, 18 |
||
597 | xor dx, dx |
||
598 | div bx |
||
599 | if lang eq ru |
||
600 | ; Ї®¤®¦¤ЁвҐ 5 ᥪг¤, 4/3/2 ᥪг¤л, 1 ᥪг¤г |
||
601 | cmp al, 5 |
||
602 | mov cl, ' ' |
||
603 | jae @f |
||
604 | cmp al, 1 |
||
605 | mov cl, 'г' |
||
606 | jz @f |
||
607 | mov cl, 'л' |
||
608 | @@: mov [time_str+9-0x10000], cl |
||
609 | else |
||
610 | ; wait 5/4/3/2 seconds, 1 second |
||
611 | cmp al, 1 |
||
612 | mov cl, 's' |
||
613 | ja @f |
||
614 | mov cl, ' ' |
||
615 | @@: mov [time_str+9-0x10000], cl |
||
616 | end if |
||
617 | add al, '0' |
||
618 | mov [time_str+1-0x10000], al |
||
619 | mov si, time_msg-0x10000 |
||
620 | _setcursor 7,0 |
||
621 | call print |
||
622 | _setcursor 25,0 |
||
623 | popad |
||
624 | pop ds |
||
625 | iret |
||
626 | .timergo: |
||
627 | push 0 |
||
628 | pop es |
||
629 | mov eax, [.oldtimer-0x10000] |
||
630 | mov [es:8*4], eax |
||
631 | mov sp, 0EC00h |
||
632 | .continue: |
||
633 | sti |
||
634 | _setcursor 6,0 |
||
635 | mov si, space_msg-0x10000 |
||
636 | call printplain |
||
637 | call printplain |
||
638 | _setcursor 6,0 |
||
639 | mov si, loading_msg-0x10000 |
||
640 | call print |
||
641 | _setcursor 15,0 |
||
642 | cmp [.bSettingsChanged-0x10000], 0 |
||
643 | jz .load |
||
644 | cmp [.loader_block-0x10000], 0 |
||
645 | jz .load |
||
646 | les bx, [.loader_block-0x10000] |
||
647 | mov eax, [es:bx+3] |
||
648 | push ds |
||
649 | pop es |
||
650 | test eax, eax |
||
651 | jz .load |
||
652 | push eax |
||
653 | mov si, save_quest-0x10000 |
||
654 | call print |
||
655 | .waityn: |
||
656 | mov ah, 0 |
||
657 | int 16h |
||
658 | or al, 20h |
||
659 | cmp al, 'n' |
||
660 | jz .loadc |
||
661 | cmp al, 'y' |
||
662 | jnz .waityn |
||
663 | call putchar |
||
34 | halyavin | 664 | mov byte [space_msg-0x10000+80], 186 |
29 | halyavin | 665 | pop eax |
666 | push cs |
||
667 | push .cont-0x10000 |
||
668 | push eax |
||
669 | retf |
||
670 | .loadc: |
||
671 | pop eax |
||
672 | .cont: |
||
673 | push cs |
||
674 | pop ds |
||
34 | halyavin | 675 | mov byte [space_msg-0x10000+80], 0 |
29 | halyavin | 676 | _setcursor 15,0 |
677 | mov si, space_msg-0x10000 |
||
678 | call printplain |
||
679 | _setcursor 15,0 |
||
680 | .load: |
||
681 | ; \end{diamond}[02.12.2005] |
||
1 | ha | 682 | |
683 | ; ASK GRAPHICS MODE |
||
684 | |||
29 | halyavin | 685 | movzx ax, [preboot_graph-0x10000] |
686 | test ax, ax |
||
1 | ha | 687 | jne pre_graph |
688 | mov si,gr_mode-0x10000 |
||
689 | call printplain |
||
29 | halyavin | 690 | mov bx,'09' |
1 | ha | 691 | call getkey |
692 | pre_graph: |
||
29 | halyavin | 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 |
||
702 | jb @f |
||
703 | mov byte [es:0x9000], 32 |
||
704 | mov dword [es:0x9018], 0x800000 |
||
705 | @@: |
||
1 | ha | 706 | mov [es:0x9008],bx |
707 | mov [es:0x900A],cx |
||
708 | mov [es:0x900C],dx |
||
709 | mov ax,32 |
||
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 |
||
716 | |||
717 | ;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
||
29 | halyavin | 718 | movzx ax,[preboot_gprobe-0x10000] |
1 | ha | 719 | test ax,ax |
720 | jne pre_probe |
||
721 | ;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
||
722 | |||
723 | test bx,0100000000000000b |
||
724 | jz noprobe |
||
725 | |||
726 | mov si,probetext-0x10000 |
||
727 | call printplain |
||
728 | push bx |
||
29 | halyavin | 729 | mov bx, '12' |
1 | ha | 730 | call getkey |
731 | pop bx |
||
732 | |||
733 | pre_probe: |
||
29 | halyavin | 734 | dec ax |
1 | ha | 735 | je noprobe |
736 | |||
737 | push cx dx |
||
738 | |||
739 | mov bx,0x100 |
||
740 | |||
741 | newprobe: |
||
742 | |||
743 | inc bx |
||
744 | cmp bx,0x17f |
||
745 | jne probemore |
||
746 | |||
747 | mov si,prnotfnd-0x10000 |
||
748 | call printplain |
||
749 | |||
750 | jmp $ |
||
751 | |||
752 | probemore: |
||
753 | |||
754 | mov ax,0x4f01 |
||
755 | mov cx,bx |
||
756 | and cx,0xfff |
||
757 | mov di,0xa000 |
||
758 | int 0x10 |
||
759 | |||
29 | halyavin | 760 | test byte [es:di], 80h ; lfb? |
761 | jz newprobe |
||
762 | mov ax, [es:di+0x12] ; x size? |
||
763 | cmp ax, [esp+2] |
||
764 | jnz newprobe |
||
765 | cmp [es:di+0x14], dx ; y size? |
||
766 | jnz newprobe |
||
767 | cmp byte [es:di+0x19], 32 ;24 |
||
768 | jb newprobe |
||
1 | ha | 769 | |
770 | add bx,0100000000000000b |
||
771 | mov [es:0x9008],bx |
||
29 | halyavin | 772 | pop dx cx |
1 | ha | 773 | |
774 | noprobe: |
||
775 | |||
776 | |||
777 | ; FIND VESA 2.0 LFB & BPP |
||
778 | |||
779 | mov ax,0x4f01 |
||
780 | mov cx,bx |
||
781 | and cx,0xfff |
||
782 | mov di,0xa000 |
||
783 | int 0x10 |
||
784 | ; LFB |
||
785 | mov ecx,[es:di+0x28] |
||
786 | mov [es:0x9018],ecx |
||
787 | ; ---- vbe voodoo |
||
788 | BytesPerScanLine equ 0x10 |
||
789 | mov ax, [es:di+BytesPerScanLine] |
||
790 | mov [es:0x9001],ax |
||
29 | halyavin | 791 | ; BPP |
792 | movzx ax,byte [es:di+0x19] |
||
793 | mov [es:0x9000],al |
||
1 | ha | 794 | nov: |
795 | cmp ax,24 |
||
29 | halyavin | 796 | mov si,bt24-0x10000 |
797 | jz bppl |
||
1 | ha | 798 | cmp ax,32 |
799 | mov si,bt32-0x10000 |
||
29 | halyavin | 800 | jz bppl |
1 | ha | 801 | mov si,btns-0x10000 |
802 | call print |
||
803 | jmp $ |
||
804 | bppl: |
||
805 | call printplain |
||
806 | |||
807 | |||
808 | ; FIND VESA 1.2 PM BANK SWITCH ADDRESS |
||
809 | |||
29 | halyavin | 810 | push es |
1 | ha | 811 | mov ax,0x4f0A |
29 | halyavin | 812 | xor bx, bx |
1 | ha | 813 | int 0x10 |
814 | xor eax,eax |
||
815 | mov ax,es |
||
816 | shl eax,4 |
||
29 | halyavin | 817 | movzx ebx,di |
1 | ha | 818 | add eax,ebx |
819 | mov bx,[es:di] |
||
820 | add eax,ebx |
||
821 | pop es |
||
822 | mov [es:0x9014],eax |
||
823 | |||
824 | |||
825 | ; GRAPHICS ACCELERATION |
||
826 | |||
29 | halyavin | 827 | mov al, [preboot_mtrr-0x10000] |
1 | ha | 828 | test al,al |
829 | jne pre_mtrr |
||
830 | mov si,gr_acc-0x10000 |
||
831 | call printplain |
||
29 | halyavin | 832 | mov bx,'12' |
1 | ha | 833 | call getkey |
834 | pre_mtrr: |
||
835 | mov [es:0x901C],al |
||
29 | halyavin | 836 | ; commented by diamond - newlines are not used now |
837 | ; mov si,linef-0x10000 |
||
838 | ; call printplain |
||
1 | ha | 839 | |
840 | |||
841 | ; VRR_M USE |
||
842 | |||
29 | halyavin | 843 | mov al,[preboot_vrrm-0x10000] |
1 | ha | 844 | test al,al |
845 | jne pre_vrrm |
||
846 | mov si,vrrmprint-0x10000 |
||
847 | call print |
||
29 | halyavin | 848 | mov bx,'13' |
1 | ha | 849 | call getkey |
850 | pre_vrrm: |
||
851 | mov [es:0x9030],al |
||
29 | halyavin | 852 | ; commented by diamond - newlines are not used now |
853 | ; mov si,linef2-0x10000 |
||
854 | ; call printplain |
||
1 | ha | 855 | |
856 | |||
857 | ; MEMORY MODEL |
||
858 | |||
859 | ; movzx eax,byte [es:preboot_memory-0x10000] |
||
860 | ; cmp eax,0 |
||
861 | ; jne pre_mem |
||
862 | ;;;;;;;;;;;;;;;;;;;;;;;;; |
||
863 | ; mario79 - memory size ; |
||
864 | ;;;;;;;;;;;;;;;;;;;;;;;;; |
||
865 | ; mov ax,0E801h |
||
866 | ;;; xor bx,bx ; thanks to Alexei for bugfix [18.07.2004] |
||
867 | ; xor cx, cx |
||
868 | ; xor dx, dx |
||
869 | ; int 0x15 |
||
870 | ; movzx ebx, dx ;bx |
||
871 | ; movzx eax, cx ;ax |
||
872 | ; shl ebx,6 ; перевод в килобайты (x64) |
||
873 | ; add eax,ebx |
||
874 | ; add eax, 1000h ;440h |
||
875 | ; cmp eax,40000h ; 256? |
||
876 | ; jge mem_256_z |
||
877 | ; cmp eax,20000h ; 128? |
||
878 | ; jge mem_128_z |
||
879 | ; cmp eax,10000h ; 64? |
||
880 | ; jge mem_64_z |
||
881 | ; cmp eax,8000h ; 32? |
||
882 | ; jge mem_32_z |
||
883 | ; jmp mem_16_z |
||
884 | ; |
||
885 | ;mem_256_z: mov si,memokz256-0x10000 |
||
886 | ; call printplain |
||
887 | ; mov eax,5 |
||
888 | ; jmp pre_mem |
||
889 | ;mem_128_z: mov si,memokz128-0x10000 |
||
890 | ; call printplain |
||
891 | ; mov eax,4 |
||
892 | ; jmp pre_mem |
||
893 | ;mem_64_z: mov si,memokz64-0x10000 |
||
894 | ; call printplain |
||
895 | ; mov eax,3 |
||
896 | ; jmp pre_mem |
||
897 | ;mem_32_z: mov si,memokz32-0x10000 |
||
898 | ; call printplain |
||
899 | ; mov eax,2 |
||
900 | ; jmp pre_mem |
||
901 | ;mem_16_z: mov si,memokz16-0x10000 |
||
902 | ; call printplain |
||
903 | ; mov eax,1 |
||
904 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
905 | ; pre_mem: |
||
906 | ; push word 0x0000 |
||
907 | ; pop es |
||
908 | ; mov [es:0x9030],al |
||
909 | ; push word 0x1000 |
||
910 | ; pop es |
||
911 | ; mov si,linef-0x10000 |
||
912 | ; call printplain |
||
913 | |||
914 | |||
915 | |||
916 | |||
917 | ; DIRECT WRITE TO LFB, PAGING DISABLED |
||
918 | |||
919 | ; movzx eax,byte [es:preboot_lfb-0x10000] |
||
920 | ; mov eax,1 ; paging disabled |
||
921 | ; cmp eax,0 |
||
922 | ; jne pre_lfb |
||
923 | ; mov si,gr_direct-0x10000 |
||
924 | ; call printplain |
||
29 | halyavin | 925 | ; mov ebx,'12' |
1 | ha | 926 | ; call getkey |
927 | ; pre_lfb: |
||
928 | ; push word 0x0000 |
||
929 | ; pop es |
||
930 | ; mov [es:0x901E],al |
||
931 | ; mov ax,0x1000 |
||
932 | ; mov es,ax |
||
933 | ; mov si,linef-0x10000 |
||
934 | ; call printplain |
||
935 | mov [es:0x901E],byte 1 |
||
936 | |||
937 | |||
938 | |||
939 | ; BOOT DEVICE |
||
940 | |||
29 | halyavin | 941 | mov al, [preboot_device-0x10000] |
942 | test al, al |
||
943 | jnz pre_device |
||
1 | ha | 944 | mov si,bdev-0x10000 |
945 | call printplain |
||
29 | halyavin | 946 | mov bx,'13' |
1 | ha | 947 | call getkey |
948 | pre_device: |
||
29 | halyavin | 949 | dec ax |
950 | mov [boot_dev-0x10000],al |
||
951 | ; commented by diamond - newlines are not used now |
||
952 | ; mov si,linef-0x10000 |
||
953 | ; call printplain |
||
1 | ha | 954 | |
955 | |||
956 | |||
957 | ; READ DISKETTE TO MEMORY |
||
958 | |||
959 | cmp [boot_dev-0x10000],0 |
||
960 | jne no_sys_on_floppy |
||
961 | mov si,diskload-0x10000 |
||
962 | call print |
||
29 | halyavin | 963 | xor ax, ax ; reset drive |
964 | xor dx, dx |
||
1 | ha | 965 | int 0x13 |
966 | mov cx,0x0001 ; startcyl,startsector |
||
29 | halyavin | 967 | xor dx, dx ; starthead,drive |
1 | ha | 968 | push word 80*2 ; read no of sect |
969 | reads: |
||
970 | pusha |
||
971 | xor si,si |
||
972 | newread: |
||
973 | mov bx,0xa000 ; es:bx -> data area |
||
974 | mov ax,0x0200+18 ; read, no of sectors to read |
||
975 | int 0x13 |
||
29 | halyavin | 976 | test ah, ah |
1 | ha | 977 | jz goodread |
29 | halyavin | 978 | inc si |
1 | ha | 979 | cmp si,10 |
980 | jnz newread |
||
981 | mov si,badsect-0x10000 |
||
982 | call printplain |
||
983 | jmp $ |
||
984 | goodread: |
||
985 | ; move -> 1mb |
||
986 | mov si,movedesc-0x10000 |
||
29 | halyavin | 987 | push es |
988 | push ds |
||
1 | ha | 989 | pop es |
990 | mov cx,256*18 |
||
991 | mov ah,0x87 |
||
992 | int 0x15 |
||
29 | halyavin | 993 | pop es |
1 | ha | 994 | |
29 | halyavin | 995 | test ah,ah ; was the move successfull ? |
1 | ha | 996 | je goodmove |
997 | mov dx,0x3f2 ; floppy motor off |
||
998 | mov al,0 |
||
999 | out dx,al |
||
1000 | mov si,memmovefailed-0x10000 |
||
1001 | call print |
||
1002 | jmp $ |
||
1003 | goodmove: |
||
1004 | |||
29 | halyavin | 1005 | add dword [movedesc-0x10000+0x18+2], 512*18 |
1 | ha | 1006 | popa |
1007 | inc dh |
||
1008 | cmp dh,2 |
||
1009 | jnz bb2 |
||
1010 | mov dh,0 |
||
1011 | inc ch |
||
1012 | pusha ; print prosentage |
||
1013 | mov si,pros-0x10000 |
||
29 | halyavin | 1014 | shr ch, 2 |
1015 | mov al, '5' |
||
1016 | test ch, 1 |
||
1017 | jnz @f |
||
1018 | mov al, '0' |
||
1019 | @@: |
||
1020 | mov [si+1], al |
||
1021 | shr ch, 1 |
||
1022 | add ch, '0' |
||
1023 | mov [si], ch |
||
1 | ha | 1024 | call printplain |
1025 | popa |
||
1026 | bb2: |
||
1027 | pop ax |
||
1028 | dec ax |
||
1029 | push ax |
||
29 | halyavin | 1030 | jnz reads |
1 | ha | 1031 | readdone: |
1032 | pop ax |
||
1033 | mov si,backspace-0x10000 |
||
1034 | call printplain |
||
1035 | call printplain |
||
1036 | mov si,okt-0x10000 |
||
1037 | call printplain |
||
1038 | no_sys_on_floppy: |
||
29 | halyavin | 1039 | xor ax, ax ; reset drive |
1040 | xor dx, dx |
||
1 | ha | 1041 | int 0x13 |
1042 | mov dx,0x3f2 ; floppy motor off |
||
1043 | mov al,0 |
||
29 | halyavin | 1044 | out dx,al |
1 | ha | 1045 | |
29 | halyavin | 1046 | push es |
1 | ha | 1047 | ; PAGE TABLE |
1048 | |||
29 | halyavin | 1049 | push dword [es:0x9018] |
1 | ha | 1050 | |
1051 | map_mem equ 64 ; amount of memory to map |
||
1052 | |||
29 | halyavin | 1053 | push 0x6000 |
1054 | pop es ; es:di = 6000:0 |
||
1055 | xor di,di |
||
1056 | mov cx,256*map_mem ; Map (mapmem) M |
||
1 | ha | 1057 | mov eax,7 |
1058 | pt2: |
||
29 | halyavin | 1059 | cmp cx,256*(map_mem-8) ; 8 M map to LFB |
1 | ha | 1060 | jnz pt3 |
1061 | pop eax |
||
1062 | add eax,7 |
||
1063 | pt3: |
||
29 | halyavin | 1064 | cmp cx,256*(map_mem-12) ; 12 M back to linear = physical |
1 | ha | 1065 | jnz pt4 |
1066 | mov eax,12*0x100000 + 7 |
||
1067 | pt4: |
||
1068 | stosd |
||
1069 | add eax,4096 |
||
1070 | loop pt2 |
||
1071 | |||
29 | halyavin | 1072 | push 0x7100 |
1073 | pop es |
||
1074 | xor di,di |
||
1 | ha | 1075 | mov eax,8*0x100000+7 |
29 | halyavin | 1076 | mov cx,256*4 |
1 | ha | 1077 | pt5: |
1078 | stosd |
||
1079 | add eax,0x1000 |
||
1080 | loop pt5 |
||
1081 | |||
1082 | ; 4 KB PAGE DIRECTORY |
||
1083 | |||
29 | halyavin | 1084 | push 0x7F00 |
1085 | pop es ; es:di = 7F00:0 |
||
1086 | xor di, di |
||
1087 | mov cx, 64 / 4 |
||
1 | ha | 1088 | mov eax, 0x60007 ; for 0 M |
1089 | pd4k: |
||
1090 | stosd |
||
1091 | add eax, 0x1000 |
||
1092 | loop pd4k |
||
1093 | mov dword [es:0x800],0x71007 ;map region 0x80000000-0x803FFFFF to 0x800000-0xCFFFFF |
||
29 | halyavin | 1094 | xor si,si |
1095 | mov di,second_base_address shr 20 |
||
1096 | mov cx,64/4 |
||
1097 | rep movs dword [es:di], [es:si] |
||
1 | ha | 1098 | |
1099 | mov eax, 0x7F000 +8+16 ; Page directory and enable caches |
||
1100 | mov cr3, eax |
||
1101 | |||
1102 | ; SET GRAPHICS |
||
1103 | |||
29 | halyavin | 1104 | pop es |
1105 | mov bx,[es:0x9008] ; vga & 320x200 |
||
1106 | mov ax, bx |
||
1107 | push ax |
||
1 | ha | 1108 | cmp ax,0x13 |
1109 | je setgr |
||
1110 | cmp ax,0x12 |
||
1111 | je setgr |
||
1112 | mov ax,0x4f02 ; Vesa |
||
1113 | setgr: |
||
1114 | int 0x10 |
||
29 | halyavin | 1115 | test ah,ah |
1 | ha | 1116 | jz gmok |
1117 | mov si,fatalsel-0x10000 |
||
1118 | call print |
||
1119 | jmp $ |
||
1120 | |||
1121 | gmok: |
||
1122 | ; set mode 0x12 graphics registers: |
||
1123 | cmp bx,0x12 |
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1124 | jne gmok2 |
||
1125 | |||
1126 | mov al,0x05 |
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1127 | mov dx,0x03ce |
||
1128 | out dx,al ; select GDC mode register |
||
1129 | mov al,0x02 |
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29 | halyavin | 1130 | inc dx |
1 | ha | 1131 | out dx,al ; set write mode 2 |
1132 | |||
1133 | mov al,0x02 |
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1134 | mov dx,0x03c4 |
||
1135 | out dx,al ; select VGA sequencer map mask register |
||
1136 | mov al,0x0f |
||
29 | halyavin | 1137 | inc dx |
1 | ha | 1138 | out dx,al ; set mask for all planes 0-3 |
1139 | |||
1140 | mov al,0x08 |
||
1141 | mov dx,0x03ce |
||
1142 | out dx,al ; select GDC bit mask register |
||
1143 | ; for writes to 0x03cf |
||
1144 | |||
1145 | gmok2: |
||
29 | halyavin | 1146 | push ds |
1147 | pop es |