User`s manual

.FORKMPUR Function
5-98
5
Field descriptions:
GPR00 to GPR31 general purpose registers
FPR00 to FPR31 floating point registers
SR00 to SR15 segment registers
SPR0 to SPR1023 special purpose registers
IP instruction pointer
MSR machine state register
CR Condition register
FPSCR floating point status and control register
CPUIEN CPU interrupt enable
Refer to the microprocessor and CPU user manuals for a detailed
description for each of these registers.
Entry Conditions
R03 ==> MPU number (i.e., 0 - 1)
R04 ==> Address (word) Starting address of register set
Exit Conditions Different from Entry
R03 ==> $00000000 - fork was successful
$FFFFFFFF - processor is not idle
$FFFFFFFE - invalid instruction pointer
$FFFFFFFD - invalid processor number