Tools

Debugging

 * Mesen-S
 * bsnes-plus
 * no$sns

Web tools

 * SnesInstructionCycleTool - calculates CPU cycles and master clock cycles under different conditions
 * Mode7Preview - allows you to specify formulas for Mode 7 registers per-scanline and view the result
 * Telinc1 Mode 7 Simulator - allows you to adjust the Mode 7 register parameters and see the result, and source frustum