org 0x7C00 main: mov ax, [es:bx+0x0A] mov [cs:pxejmp], ax mov ax, [es:bx+0x0A+2] mov [cs:pxejmp+2], ax mov ax, cs mov ds, ax mov si, pxejmp call dump mov ax, cs mov ds, ax mov di, pxestat mov bx, 0x0071 call UsePXEAPI mov ax, cs mov ds, ax mov si, pxestat call dump call dump hlt: hlt jmp hlt UsePXEAPI: push ds push di push bx int 3 call far [pxejmp] int 3 add sp, 6 ret pxejmp: dd 0 pxestat: .Status dw 0 .PacketType dw 2 .BufferSize dw 0 .BufferOff dw 0 .BufferSeg dw 0 .BufferLimit dw 0 ;tftp_open: ; .Status dw 0 ; .SIP dd 0 ; .GIP dd 0 ; .Filename db "pxe.bs" ; times (128-6) db 0 ; .Port dw 0 ; .PacketSize dw 0 space: mov al, 0x20 jmp putc putbc: cmp al, 0x80 jnc dot cmp al, 0x20 jnc putc dot: mov al, '.' putc: push ax push bx mov ah, 0x0e xor bx, bx int 0x10 pop bx pop ax ret dump: push cx mov ax, ds call print16 mov al, ':' call putc mov ax, si call print16 call space call space mov cx, 0x08 push si .hloop: lodsb call print8 lodsb call print8 call space loop .hloop pop si call space mov cx, 0x10 .aloop: lodsb call putbc loop .aloop mov al, 0x0A call putc mov al, 0x0D call putc pop cx ret %include "print.asm" %include "printf.asm"