Subversion Repositories next186

; this is the bootstrap code contained in SRAM.coe initialization file

.186

.model tiny

.code

      org 0

start:

      mov ax,0ff80h

        mov ss,ax

        mov ds,ax

        mov es,ax

        mov sp,100h

        mov si,com

        call srecb

        mov bh,ah

        call srecb

        mov bl,ah

sloop:

        call srecb

        mov [si],ah

        inc si

        dec bx

        jnz sloop

        jmp exec

; ----------------  serial receive byte 115200 bps --------------

srecb:

      mov ah,80h

        mov cx,56h

srstb:

        in al,0

        and al,1

        jnz srstb

      nop

l1:

        loop l1

rnxtb:

        mov cl,adh

l2:

        loop l2

        test al,80h

        jnz return

        in al,0

        ror ax,1

        jmp rnxtb

return:

        ret

exec: jmp com

      org 100h

com:

end start