Changeset 621 in xtideuniversalbios for trunk/Assembly_Library/Src/Util

Timestamp:

Nov 21, 2021, 2:15:32 PM (3 years ago)

Author:

Krister Nordvall

Message:

Changes:

• Fixed three different bugs all causing the boot menu to show drives using IRQs even though the BIOS had been built without MODULE_IRQ.
• Fixed two bugs in XTIDECFG where loading a BIOS from file and then loading the old settings from EEPROM would
  • overwrite ROMVARS.wFlags in the loaded BIOS file (in RAM). The possibly resulting mismatch of module flags could make it impossible to change settings for modules included in the BIOS or allow changing settings for modules not included in the BIOS.
  • not copy the color theme over to the loaded BIOS.
• Also fixed two very minor bugs in XTIDECFG in BiosFile_LoadFileFromDSSItoRamBuffer and BiosFile_SaveRamBufferToFileInDSSI where the error handling in these routines would close whatever file handle that happened to match the error code returned by DOS in AX.
• Made significant changes to the new flash ROM programming routines to reduce the size. Also fixed a minor bug that would cause the second verification to be skipped and return success when programming a 64 KB block of data.
• Changed the custom BIOS build file names to the 8.3 format.
• Changed some help strings in XTIDECFG to clarify things.
• Other minor optimizations and fixes.

File:

• trunk/Assembly_Library/Src/Util/Memory.asm (modified) (1 diff)

trunk/Assembly_Library/Src/Util/Memory.asm

@@ -160 +160 @@
 ALIGN JUMP_ALIGN
 Memory_SumCXbytesFromESSItoAL:
-    push    si
-    dec     si
+    add     si, cx
     xor     al, al
 ALIGN JUMP_ALIGN
 .AddNextByteToAL:
-    inc     si
+    dec     si
     add     al, [es:si]
     loop    .AddNextByteToAL
-    pop     si
     ret
 %endif