#### G.5.2 Alpha Features ¶

The ‘`org.gnu.gdb.alpha.core`’ feature is required for Alpha targets. It must contain the following 64-bit registers; note that GDB uses the software names for Alpha registers:

- ‘`v0`’: function return value
- ‘`t0`’ through ‘`t12`’: temporary registers
- ‘`s0`’ through ‘`s5`’: saved registers
- ‘`fp`’: frame pointer
- ‘`a0`’ through ‘`a5`’: argument registers
- ‘`ra`’: return address
- ‘`at`’: assembler temporary register
- ‘`gp`’: global pointer
- ‘`sp`’: stack pointer
- ‘`zero`’: always zero
- ‘`f0`’ through ‘`f30`’: floating-point registers
- ‘`fpcr`’: floating-point control register
- ‘`pc`’: program counter
- : an anonymous register for historical purpose
- ‘`unique`’: PALcode memory slot