               | | Standard logic - 'TTL' SSI/MSI |
               | | - ECL |
               | | - arithmetic/PROM/RAM/FIFO |
               | | Programmeable - small, incl. 22v10 (ABEL) |
               | | - Altera Max (ABEL/Synario) |
               | | - Atmel atv2500
(ABEL) |
               | | - Lattice ispLSI (ABEL) |
               | | - Xilinx (XACT-XDE) |
               | | - Xilinx (Mentor-XACT
synthesis) |
               | | ASIC |
               | | Processor - other |
               | | - 68xxx |
               | | - 80x86 |
               | | - DSP |
              | | |