Bwah hah, that reminds of me the ADSP-21xx series... They had a second register file for the interrupts. No pushing or popping. Interrupts happens, bam, all

Bwah hah, that reminds of me the ADSP-21xx series... They had a second register file for the interrupts. No pushing or popping. Interrupts happens, bam, all of your accesses are exactly where you left them! And when you're done, return to main thread and all registers are exactly where you left them on the next clock cycle!!!