9.33.2.2 Register Names

You can use the predefined symbols `r0', `r1', `r2', `r3', `r4', `r5', `r6', `r7', `r8', `r9', `r10', `r11', `r12', `r13', `r14', and `r15' to refer to the SH registers.

The SH also has these control registers:

pr

procedure register (holds return address)

pc

program counter

mach

macl

high and low multiply accumulator registers

sr

status register

gbr

global base register

vbr

vector base register (for interrupt vectors)