Maximum depth of call/create stack.

Once per CALL operation & message call transaction.

Paid for CALL when the destination address didn't exist prior.

Free gas given at beginning of call.

Paid for CALL when the value transfor is non-zero.

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Once per CREATE operation & contract-creation transaction.

The bound divisor of the difficulty, used in the update calculations.

The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.

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Duration between proof-of-work epochs.

Times ceil(log256(exponent)) for the EXP instruction.

Once per EXP instuction.

The bound divisor of the gas limit, used in update calculations.

Difficulty of the Genesis block.

Gas limit of the Genesis block.

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Refunded gas, once per SSTORE operation if the zeroness changes to zero.

Per byte in a LOG* operation's data.

Per LOG* operation.

Multiplied by the * of the LOG*, per LOG transaction.

Maximum size extra data may be after Genesis.

Times the address of the (highest referenced byte in memory + 1).

Minimum the gas limit may ever be.

The minimum that the difficulty may ever be.

Divisor for the quadratic particle of the memory cost equation.

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Once per SHA3 operation.

Once per word of the SHA3 operation's data.

Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added.

Once per SSTORE operation if the zeroness doesn't change.

Once per SSTORE operation if the zeroness changes to zero.

Once per SSTORE operation if the zeroness changes from zero.

Once per SLOAD operation.

Maximum size of VM stack allowed.

Refunded following a suicide operation.

Once per operation, for a selection of them.

Per byte of data attached to a transaction that is not equal to zero.

Per byte of data attached to a transaction that equals zero.

Per transaction.