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stack-operations.zkasm
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stack-operations.zkasm
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/**
* @link [https://www.evm.codes/#60?fork=berlin]
* @zk-counters
* - 100 steps (stack) || 400 steps (calldata)
* - 1 binary (stack) || 0 binary (calldata)
* @process-opcode
* - stack input: none
* - stack output: [pushed_value]
*/
opPUSH1:
; number of bytes to push to D
1 => D
; check is a deploy
; if is a deploy, get bytes from memory else, get bytes from stack
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH2:
2 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH3:
3 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH4:
4 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH5:
5 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH6:
6 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH7:
7 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH8:
8 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH9:
9 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH10:
10 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH11:
11 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH12:
12 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH13:
13 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH14:
14 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH15:
15 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH16:
16 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH17:
17 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH18:
18 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH19:
19 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH20:
20 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH21:
21 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH22:
22 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH23:
23 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH24:
24 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH25:
25 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH26:
26 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH27:
27 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH28:
28 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH29:
29 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH30:
30 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH31:
31 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opPUSH32:
32 => D
$ => B :MLOAD(isCreateContract), JMPNZ(opAuxPUSHB, opAuxPUSHA)
opAuxPUSHA:
; checks zk-counters
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
$ => B :MLOAD(bytecodeLength)
PC + D - B :JMPN(opAuxPUSHA2)
B - PC => D
opAuxPUSHA2:
; check out-of-gas
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
; read bytes from calldata
:CALL(readPush); in: [D: bytes to read] out: [E: value read]
; store stack output
E :MSTORE(SP++); [pushed_value(E) => SP]
; check stack overflow
%CALLDATA_OFFSET - SP :JMPN(stackOverflow)
; rectify PC
PC + D => PC :JMP(readCode)
opAuxPUSHB:
; checks zk-counters
%MAX_CNT_STEPS - STEP - 400 :JMPN(outOfCountersStep)
; check is a create/create2
$ => A :MLOAD(isCreate), JMPNZ(opAuxPUSHBcreate)
$ => B :MLOAD(txCalldataLen)
PC + D - B :JMPN(opAuxPUSHB2)
B - PC => D
opAuxPUSHB2:
; set bytes length to read to C
0 => A
D - 1 => C :JMPN(opAuxPUSHBend)
opAuxPUSHBloop:
; checks zk-counters
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
; get position where data starts in the tx
$ => HASHPOS :MLOAD(dataStarts)
; add PC to data starts to point the bytes to read for the push
HASHPOS + PC => HASHPOS
PC + 1 => PC
; get memory pointer for hashing
$ => E :MLOAD(batchHashDataId)
$ => B :HASHK1(E)
; accumulate hash value
A + B => A
; decrease length for loop
C - 1 => C :JMPN(opAuxPUSHBend)
1 => D :CALL(SHLarith); in: [A: value, D: #bytes to left shift] out: [A: shifted result]
:JMP(opAuxPUSHBloop)
opAuxPUSHBend:
; check out-of-gas
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
; store stack output (value)
A :MSTORE(SP++); [pushed_value(E) => SP]
; check stack overflow
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opAuxPUSHBcreate:
; get bytes length
$ => B :MLOAD(txCalldataLen)
; PUSH in a create, we need to get bytes from memory (not calldata)
; get pushed bytes from previous context memory
$ => CTX :MLOAD(originCTX)
; get offset call position
$ => E :MLOAD(argsOffsetCall)
; increase current program counter (PC) to offset for getting pushed bytes to read
E + PC => E
D => C
C - B + PC :JMPN(opAuxPUSHBcreate2)
0 => A
B - PC => C :JMPZ(opfinalPUSHBcreate)
opAuxPUSHBcreate2:
; set length to read to C for MOLADX call
:CALL(MLOADX); in: [E: offset, C: length] out: [A: value, E: new offset]
; increase to PC the length of the read bytes
PC + D => PC
; put in the lowest significant bytes, align value to right
32 - D => D :CALL(SHRarith); in: [A: value, D: #bytes to right shift] out: [A: shifted result]
opfinalPUSHBcreate:
; return to current context
$ => CTX :MLOAD(currentCTX), JMP(opAuxPUSHBend)
/**
* @link [https://www.evm.codes/#80?fork=berlin]
* @zk-counters
* - 100 steps
* @process-opcode
* - stack input: [value]
* - stack output: [duplicated_value, original_value]
*/
opDUP1:
; checks zk-counters
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
; check stack underflow
SP - 1 :JMPN(stackUnderflow)
; check out-of-gas
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1); [value => A]
; store duplicated value
A :MSTORE(SP++); [duplicated_value(A) => SP]
; check stack overflow
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP2:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 2 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-2)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP3:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 3 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-3)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP4:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 4 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-4)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP5:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 5 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-5)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP6:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 6 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-6)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP7:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 7 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-7)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP8:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 8 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-8)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP9:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 9 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-9)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP10:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 10 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-10)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP11:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 11 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-11)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP12:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 12 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-12)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP13:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 13 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-13)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP14:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 14 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-14)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP15:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 15 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-15)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
opDUP16:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 16 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-16)
A :MSTORE(SP++)
%CALLDATA_OFFSET - SP :JMPN(stackOverflow, readCode)
/**
* @link [https://www.evm.codes/#90?fork=berlin]
* @zk-counters
* - 100 steps
* @process-opcode
* - stack input: [value_to_swap_a, value_to_swap_b]
* - stack output: [swapped_value_a, swapped_value_b]
*/
opSWAP1:
; checks zk-counters
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
; check stack underflow
SP - 2 :JMPN(stackUnderflow)
; check out-of-gas
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
; read values from stack
$ => A :MLOAD(SP-1); [value_to_swap_a => A]
$ => B :MLOAD(SP-2); [value_to_swap_b => B]
; store swapped value a
A :MSTORE(SP-2); [swapped_value_a => SP]
; store swapped value b
B :MSTORE(SP-1), JMP(readCode); [swapped_value_b => SP]
opSWAP2:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 3 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-3)
A :MSTORE(SP-3)
B :MSTORE(SP-1), JMP(readCode)
opSWAP3:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 4 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-4)
A :MSTORE(SP-4)
B :MSTORE(SP-1), JMP(readCode)
opSWAP4:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 5 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-5)
A :MSTORE(SP-5)
B :MSTORE(SP-1), JMP(readCode)
opSWAP5:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 6 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-6)
A :MSTORE(SP-6)
B :MSTORE(SP-1), JMP(readCode)
opSWAP6:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 7 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-7)
A :MSTORE(SP-7)
B :MSTORE(SP-1), JMP(readCode)
opSWAP7:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 8 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-8)
A :MSTORE(SP-8)
B :MSTORE(SP-1), JMP(readCode)
opSWAP8:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 9 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-9)
A :MSTORE(SP-9)
B :MSTORE(SP-1), JMP(readCode)
opSWAP9:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 10 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-10)
A :MSTORE(SP-10)
B :MSTORE(SP-1), JMP(readCode)
opSWAP10:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 11 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-11)
A :MSTORE(SP-11)
B :MSTORE(SP-1), JMP(readCode)
opSWAP11:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 12 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-12)
A :MSTORE(SP-12)
B :MSTORE(SP-1), JMP(readCode)
opSWAP12:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 13 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-13)
A :MSTORE(SP-13)
B :MSTORE(SP-1), JMP(readCode)
opSWAP13:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 14 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-14)
A :MSTORE(SP-14)
B :MSTORE(SP-1), JMP(readCode)
opSWAP14:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 15 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-15)
A :MSTORE(SP-15)
B :MSTORE(SP-1), JMP(readCode)
opSWAP15:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 16 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-16)
A :MSTORE(SP-16)
B :MSTORE(SP-1), JMP(readCode)
opSWAP16:
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
SP - 17 :JMPN(stackUnderflow)
GAS - %GAS_FASTEST_STEP => GAS :JMPN(outOfGas)
$ => A :MLOAD(SP-1)
$ => B :MLOAD(SP-17)
A :MSTORE(SP-17)
B :MSTORE(SP-1), JMP(readCode)
/**
* @link [https://www.evm.codes/#50?fork=berlin]
* @zk-counters
* - 100 steps
* @process-opcode
* - stack input: [stack_item]
* - stack output: none
*/
opPOP:
; checks zk-counters
%MAX_CNT_STEPS - STEP - 100 :JMPN(outOfCountersStep)
; check stack underflow
SP - 1 => SP :JMPN(stackUnderflow)
; check out-of-gas
GAS - %GAS_QUICK_STEP => GAS :JMPN(outOfGas, readCode)