search for: bxbytespersec

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2003 Dec 27
0
2 disks boot patch
...aded only the first cluster of LDLINUX.SYS. ; We can really only rely on a single sector having been loaded. Hence ; we should load the FAT into RAM and start chasing pointers... ; +; begin - freddy77 + +load_fat: +; end - freddy77 xor ax,ax cwd inc dx ; DX:AX <- 64K div word [bxBytesPerSec] ; sectors/64K mov si,ax push es mov bx,fat_seg ; Load into fat_seg:0000 mov es,bx @@ -730,20 +738,25 @@ call getlinsecsr sub cx,bp jz fat_load_done ; Last moby? add eax,ebp ; Advance sector count mov bx,es ; Next 64K moby add bx,1000h mov es,bx jmp...
2003 Dec 27
0
FW: 2 disks boot patch
...aded only the first cluster of LDLINUX.SYS. ; We can really only rely on a single sector having been loaded. Hence ; we should load the FAT into RAM and start chasing pointers... ; +; begin - freddy77 + +load_fat: +; end - freddy77 xor ax,ax cwd inc dx ; DX:AX <- 64K div word [bxBytesPerSec] ; sectors/64K mov si,ax push es mov bx,fat_seg ; Load into fat_seg:0000 mov es,bx @@ -730,20 +738,25 @@ call getlinsecsr sub cx,bp jz fat_load_done ; Last moby? add eax,ebp ; Advance sector count mov bx,es ; Next 64K moby add bx,1000h mov es,bx jmp...