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Type of machine code
PALcode (Privileged Architecture Library code) is the name used by DEC in the Alpha instruction set architecture (ISA) for a set of functions in the System
PALcode
Hardware that translates virtual addresses to physical addresses
low-level firmware machine code (here called PALcode) walks a page table. The OpenVMS AXP PALcode and DEC OSF/1 PALcode walk a three-level tree-structured page
Memory_management_unit
Processor design concept
TLB, with the TLB miss handling code being in PALcode, rather than in the operating system. As the PALcode for a processor can be processor-specific and
Translation_lookaside_buffer
Layer of hardware-level instructions or data structures
features of the instruction set. The DEC Alpha, a pure RISC design, used PALcode to implement features such as translation lookaside buffer (TLB) miss handling
Microcode
64-bit RISC instruction set architecture
and Richard T. Witek. The PRISM's Epicode was developed into the Alpha's PALcode, providing an abstracted interface to platform- and processor implementation-specific
DEC_Alpha
Technology used in CPUs
bit in page table entries with the OpenVMS, Tru64 UNIX, and Alpha Linux PALcode. The SPARC Reference MMU for Sun SPARC version 8 has permission values
NX_bit
Computer operating system
the emulation of certain low-level details of the VAX architecture in PALcode, such as interrupt handling and atomic queue instructions. The VMS port
OpenVMS
List of x86 microprocessor instructions
accessible in a special "hyper mode" operation mode, similar to DEC Alpha's PALcode and Intel's XuCode) for many complicated operations that are implemented
List_of_x86_instructions
Higher level of microcode
System/370 instructions and code that had access to special hardware features. PALcode Rogers, Bob (Sep–Oct 2012). "The What and Why of zEnterprise Millicode"
Millicode
Microprocessor
thirty-two are specified by the Alpha Architecture and eight are for use by PALcode as scratchpad memory. The register file has four read ports and two write
Alpha_21164
travel, tourism, insurance
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travel, tourism, insurance