Cmep basics

Calling convention

 * $1 = arg0
 * $2 = arg1
 * $3 = arg2
 * $4 = arg3

Unmodified by callee: $5, $6, $7, $8

Clobbered by callee: $9, $10, $11, $12

Configuration
Note: This is dumped with a sm exploit. Some options are read/write so it might differ.

$opt
0x03FD0201

This register is read-only.


 * CBS = 00: coprocessor data bus width 32-bit
 * DBS = 00: DSP data bus width 32-bit
 * 0
 * HWE = 0: hardware engine off
 * DIV = 1: 32-bit divide instruction on
 * MUL = 1: multiply instruction on
 * BIT = 1: bit manipulation instruction on
 * SAT = 1: saturation instruction on
 * CLP = 1: clip instruction on
 * MIN = 1: min/max instruction on
 * AVE = 1: average instruction on
 * ABS = 1: abs instruction on
 * 0
 * LDZ = 1: leading zero instruction on
 * BIS = 00: bus interface width is 32-bit
 * LBS = 00: local bus interface width is 32-bit
 * 0
 * TCN = 010: 2 timer/counter channels
 * 0
 * VL64 = 0: 64-bit VLIW off
 * VL32 = 0: 32-bit VLIW off
 * COP = 0: coprocessor off
 * 0
 * DSP = 0: DSP off
 * UCI = 0: UCI off
 * DBG = 1: DBG on