Last change
on this file since 227 was
192,
checked in by gregli@…, 12 years ago
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Optimized away some long jumps, by rearranging routines within files, and file order within main.asm. Also added some 'relay' entry points for popular destinations, so that a short jump can go to an existing short jump and then on to the final destination, instead of using a long jump - clearly space over speed optimization. All 'relay's are limited to the UI code, and will not have an impact on IDE operational performance.
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File size:
1.4 KB
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Line | |
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1 | ; Project name : XTIDE Universal BIOS |
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2 | ; Description : Functions for printing boot related strings. |
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3 | |
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4 | ; Section containing code |
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5 | SECTION .text |
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6 | |
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7 | ;-------------------------------------------------------------------- |
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8 | ; BootPrint_FailedToLoadFirstSector |
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9 | ; Parameters: |
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10 | ; AH: INT 13h error code |
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11 | ; Returns: |
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12 | ; Nothing |
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13 | ; Corrupts registers: |
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14 | ; AX, CX, SI, DI |
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15 | ;-------------------------------------------------------------------- |
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16 | ALIGN JUMP_ALIGN |
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17 | BootPrint_FailedToLoadFirstSector: |
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18 | push bp |
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19 | mov bp, sp |
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20 | eMOVZX cx, ah |
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21 | push cx ; Push INT 13h error code |
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22 | mov si, g_szReadError |
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23 | |
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24 | BootPrint_BootMenuPrint_FormatCSSIfromParamsInSSBP_Relay: |
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25 | jmp short BootMenuPrint_FormatCSSIfromParamsInSSBP_Relay |
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26 | |
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27 | |
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28 | ;-------------------------------------------------------------------- |
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29 | ; BootPrint_TryToBootFromDL |
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30 | ; Parameters: |
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31 | ; DL: Drive to boot from (translated, 00h or 80h) |
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32 | ; DS: RAMVARS segment |
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33 | ; Returns: |
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34 | ; Nothing |
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35 | ; Corrupts registers: |
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36 | ; AX, SI, DI |
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37 | ;-------------------------------------------------------------------- |
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38 | ALIGN JUMP_ALIGN |
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39 | BootPrint_TryToBootFromDL: |
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40 | push bp |
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41 | mov bp, sp |
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42 | |
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43 | mov ax, g_szHDD |
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44 | test dl, dl |
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45 | js SHORT .NotFDD |
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46 | mov ax, g_szFDD |
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47 | .NotFDD: |
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48 | push ax |
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49 | |
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50 | call DriveXlate_ToOrBack |
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51 | push dx ; Push untranslated drive number |
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52 | call DriveXlate_ToOrBack |
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53 | push dx ; Push translated drive number |
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54 | |
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55 | mov si, g_szTryToBoot |
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56 | jmp short BootPrint_BootMenuPrint_FormatCSSIfromParamsInSSBP_Relay |
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57 | |
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58 | |
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59 | |
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