; C stack frame definitions

c$pmtr = 4	;refer to parameter (argument) # 0..n by c$pmtr+2*n(r5)
c$rt = 2	;return addr
c$r5 = 0	;saved r5 (old frame pointer for C)
c$r4 = -2	;saved r4
c$r3 = -4	;saved r3
c$r2 = -6	;saved r2
c$auto = -6	;refer to auto variable # 1..n by c$auto-2*n(r5)