Fixed-capacity postfix program (POD device-copyable): len opcodes, arg read only by PushReg (register index). More...

#include <coupled_source_program.hpp>

Collaboration diagram for pops::CsProgram:

Public Member Functions
POPS_HD Real	eval (const Real *reg) const
	Evaluate the program on the registers `reg` (loaded for the cell).

Public Attributes
int	len = 0

int	op [kCsMaxProg] = {}

int	arg [kCsMaxProg] = {}

Detailed Description

Fixed-capacity postfix program (POD device-copyable): len opcodes, arg read only by PushReg (register index).

Capturable by value in a device kernel.

Member Function Documentation

◆ eval()

POPS_HD Real pops::CsProgram::eval ( const Real * reg ) const

inline

Evaluate the program on the registers reg (loaded for the cell).

LOCAL fixed-capacity stack, no heap -> POPS_HD device-callable. PRECONDITION: well-formed program (checked on the Python side); returns the final top, or Real(0) if the stack is empty.

DEFENSIVE stack bounds (program assumed well-formed on the Python side, but we never read out of bounds on device): a PushReg pushes only if sp < kCsMaxStack (bounded overflow); a binary (resp. unary) operator requires sp >= 2 (resp. >= 1) before popping, otherwise it is skipped (bounded underflow, no st[sp<0] access). In debug, an assert flags the ill-formed program.

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Member Data Documentation

◆ arg

int pops::CsProgram::arg[kCsMaxProg] = {}

◆ len

int pops::CsProgram::len = 0

◆ op

int pops::CsProgram::op[kCsMaxProg] = {}

The documentation for this struct was generated from the following file:

include/pops/coupling/source/coupled_source_program.hpp

CsProgram Struct Reference¶

Public Member Functions