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Last change
on this file since 192 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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| 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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