Intel ITANIUM ARCHITECTURE - SOFTWARE DEVELOPERS MANUAL VOLUME 1 REV 2.3 Manual page 1190

Table 3-1. Pseudo-code Functions (Continued)
Function
unimplemented_physical_address(paddr) Return TRUE if the presented physical address is unimplemented on this processor
unimplemented_virtual_address(vaddr,
vm)
vm_all_probes()
vm_disabled()
vm_select_probes()
vmsw_disabled()
zero_ext(value, pos)
Volume 3: Pseudo-Code Functions
model; FALSE otherwise. This function is model specific.
Return TRUE if the presented virtual address is unimplemented on this processor
model; FALSE otherwise. If vm is 1, one additional bit of virtual address is treated as
unimplemented. This function is model specific.
Returns TRUE if the processor is configured to virtualize all probe instructions when
PSR.vm is 1. See Section 11.7.4.2.8, "Probe Instruction Virtualization" on
page 2:344 for details.
Returns TRUE if the processor implements the PSR.vm bit and virtual machine
features are disabled. See Section 3.4, "Processor Virtualization" on page 2:44 in
SDM and "PAL_PROC_GET_FEATURES – Get Processor Dependent Features
(17)" on page 2:446 in SDM
Returns TRUE if the processor is configured to virtualize selected probe instructions
when PSR.vm is 1. See Section 11.7.4.2.8, "Probe Instruction Virtualization" on
page 2:344 for details.
Returns TRUE if the processor implements the PSR.vm bit and the vmsw instruction
is disabled. See Section 3.4, "Processor Virtualization" on page 2:44 in SDM
"PAL_PROC_GET_FEATURES – Get Processor Dependent Features (17)" on
page 2:446 in SDM for details.
Returns a 64 bit unsigned number with bits pos -1 through 0 taken from value and
zeroes in bit positions pos through 63. If pos is greater than or equal to 64, value is
returned.
Operation
for details.
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and
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