; this kprints registers
; expect to be called as interrupt routine
debug_reg_ir:
  push ss
  push es
  push ds
  push di
  push si
  push bp
  push sp
  push dx
  push cx
  push bx
  push ax

  mov ax,cs
  mov ds,ax
  mov si,.fmt
  call kprintf

  pop ax
  pop bx
  pop cx
  pop dx
  pop sp
  pop bp
  pop si
  pop di
  pop ds
  pop es
  pop ss
  iret
.fmt:
  db "AX=%X BX=%X CX=%X DX=%X SP=%X BP=%X SI=%X DI=%X", 0x0A, 0x0D, "DS=%X ES=%X SS=%X IP=%X CS=%X FL=%X", 0