64DD System LBA access with SDK

RETAIL-------
0000000000000000 <leoRead>:
   0:	27bdffe8 	addiu	$sp,$sp,-24
   4:	3c0e0000 	lui	$t6,0x0
   8:	afbf0014 	sw	$ra,20($sp)
   c:	25ce0000 	addiu	$t6,$t6,0
  10:	a5c00000 	sh	$zero,0($t6)
  14:	0c000000 	jal	0 <leoRead>
  18:	24040018 	li	$a0,24
  1c:	8fbf0014 	lw	$ra,20($sp)
  20:	27bd0018 	addiu	$sp,$sp,24
  24:	03e00008 	jr	$ra
  28:	00000000 	nop

Change
  18:	24040018 	li	$a0,24
to
  18:	24040000 	li	$a0,0

Enjoy access to System Blocks of the disk.
Thanks, Zoinkity for your Dezaemon 3D high level disassembly.
And OzOnE for your library disassembly.

<bh:27><bh:bd><bh:ff><bh:e8><bh:3c><bh:0e>