Sis-3.0.1 includes the following new features:

 * Correction of timer handling
 * Each ERC32 I/O area has 1 Kbyte of ram attached in order to be able
   test I/O read/write functions.

Sis-3.0 includes the following new features:

 * Correction of bugs in several IU and FPU instructions
 * Correction of FPU trap handling
 * Correction of timer and watchdog handling
 * Accurate FPU timing (+- 2%)
 * Accurate UART timing
 * Simulation of watchdog clock 
 * Display MEC registers
 * Memory and MEC registers writable from command line
 * Dynamically configurable memory sizes (128K - 32M)
 * Execute startup commands from .sisrc