Program Status Word: Difference between revisions

 

=== Structure (S390) ===

struct s390_psw {

uint32_t flags;

uint32_t address;

} __attribute__((packed, aligned(8)));

 

=== Structure (z/Arch) ===

struct s390x_psw {

uint32_t hi_flags;

uint32_t lo_address;

} __attribute__((packed, aligned(8)));

 

=== Portable PSW declaration ===

/* Helper function to create a PSW adjusted to the current machine */

#if (MACHINE >= M_ZARCH)

S390_PSW_ENABLE_ARCHMODE | S390_PSW_ENABLE_MCI | S390_PSW_WAIT_STATE| S390_PSW_IO_INT | S390_PSW_DAT

);

 

=== Service Interrupt handler ===

.globl s390_supervisor_call_handler_stub

s390_supervisor_call_handler_stub:

lm %r0, %r15, S390_FLCGRSAV

lpsw S390_FLCSOPSW

 

== See also ==