693d05b755
* Add gitattributes to handle line endings. * Import the unmodified LTEMM source. From https://www.lo-tech.co.uk/wiki/LTEMM.EXE. * Add DOSBox and TASM for build. * Add build script for LTEMM. * Modity LTEMM driver for XTMax. * Import the unmodified SDPP source. From https://forum.vcfed.org/index.php?threads/sd-card-to-parallel-port-driver-for-msdos-ver-1-1.42008/. * Add Borland C++ 3.1 (Minimal) for build. * Add build script for SDPP. * Modify SDPP driver for XTMax. * Commit pre-built binaries for LTEMM and SDPP. * Reorganize the drivers into a new folder.
101 lines
2.8 KiB
Plaintext
101 lines
2.8 KiB
Plaintext
;*****************************************************************
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;* *
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;* *
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;* EMM/EMS driver program for BOCARAM30 Memory board *
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;* *
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;* *
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;*****************************************************************
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; Some useful macros ...
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;Ž¡¬¥ ¡ ©â ¬¨ ¬¥¦¤ã SOURCE ¨ DESTINATION
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Exbyte MACRO
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mov al,[si]
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xchg al,es:[di]
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mov [si],al
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inc si
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inc di
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ENDM
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;Ž¡¬¥ á«®¢ ¬¨ ¬¥¦¤ã SOURCE ¨ DESTINATION
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Exword MACRO
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mov ax,[si]
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xchg ax,es:[di]
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mov [si],ax
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add di,2
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add si,2
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ENDM
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;‚ëç¨á«¥¨¥ ¡á®«î⮣® ¤à¥á FAR-㪠§ ⥫ï
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;‚室 : 㪠§ â¥«ì ¢ ä®à¬ ⥠ᥣ¬¥â:ᬥ饨¥
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;‚ë室 : DX:AX = ¡á®«îâë© ¤à¥á
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FarPtrAddress MACRO Segment,Offset
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mov dx,Segment
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mov ax,Offset
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mov bx,dx
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mov cl,4
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shl bx,cl
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and dx,0F000h
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rol dx,cl
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add ax,bx
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adc dx,0
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ENDM
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;‚ëç¨á«¥¨¥ ¡á®«î⮣® ¤à¥á FAR-㪠§ ⥫ï
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;‚室 : 㪠§ ⥫ì ᥣ¬¥â:ᬥ饨¥ (DX:AX)
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;‚ë室 : DX:AX = ¡á®«îâë© ¤à¥á
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FarAddress MACRO
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mov bx,dx
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mov cl,4
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shl bx,cl
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and dx,0F000h
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rol dx,cl
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add ax,bx
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adc dx,0
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ENDM
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;‘¤¢¨£ ¢«¥¢® 32-à §à冷£® ç¨á« (DX:AX) COUNT à §
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Shl32 MACRO Count
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REPT Count
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shl ax,1
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rcl dx,1
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ENDM
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ENDM
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;‘¤¢¨£ ¢¯à ¢® 32-à §à冷£® ç¨á« (DX:AX) COUNT à §
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Shr32 MACRO Count
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REPT Count
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shr dx,1
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rcr ax,1
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ENDM
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ENDM
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;‘«®¦¥¨¥ 32-à §àï¤ëå ç¨á¥« (DX:AX) + HIGH-LOW
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Add32 MACRO High,Low
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add ax,Low
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adc dx,High
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ENDM
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;‚ëç¨â ¨¥ 32-à §àï¤ëå ç¨á¥« (DX:AX) - HIGH-LOW
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Sub32 MACRO High,Low
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sub ax,Low
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sbb dx,High
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ENDM
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;‡ £à㧪 32-à §à冷£® ç¨á« ¢ (DX:AX)
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Load32 MACRO High,Low
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mov dx,High
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mov ax,Low
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ENDM
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;‡ £à㧪 32-à §à冷£® ç¨á« ¢ (DX:AX)
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FLoad32 MACRO Strt
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les ax,dword ptr Strt
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mov dx,es
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ENDM
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;‘®åà ¥¨¥ 32-à §à冷£® ç¨á« (DX:AX) ¢ HIGH-LOW
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Save32 MACRO High,Low
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mov High,dx
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mov Low,ax
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ENDM
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