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src/script/interpreter.cpp
Show First 20 Lines • Show All 331 Lines • ▼ Show 20 Lines | try { | ||||
// Note how OP_RESERVED does not count towards the opcode limit. | // Note how OP_RESERVED does not count towards the opcode limit. | ||||
if (opcode > OP_16 && ++nOpCount > MAX_OPS_PER_SCRIPT) { | if (opcode > OP_16 && ++nOpCount > MAX_OPS_PER_SCRIPT) { | ||||
return set_error(serror, SCRIPT_ERR_OP_COUNT); | return set_error(serror, SCRIPT_ERR_OP_COUNT); | ||||
} | } | ||||
if (opcode == OP_CAT || opcode == OP_SPLIT || | if (opcode == OP_CAT || opcode == OP_SPLIT || | ||||
opcode == OP_NUM2BIN || opcode == OP_BIN2NUM || | opcode == OP_NUM2BIN || opcode == OP_BIN2NUM || | ||||
opcode == OP_INVERT || opcode == OP_2MUL || opcode == OP_2DIV || | opcode == OP_INVERT || opcode == OP_2MUL || opcode == OP_2DIV || | ||||
opcode == OP_MUL || opcode == OP_DIV || opcode == OP_MOD || | opcode == OP_MUL || opcode == OP_MOD || opcode == OP_LSHIFT || | ||||
opcode == OP_LSHIFT || opcode == OP_RSHIFT) { | opcode == OP_RSHIFT) { | ||||
// Disabled opcodes. | // Disabled opcodes. | ||||
return set_error(serror, SCRIPT_ERR_DISABLED_OPCODE); | return set_error(serror, SCRIPT_ERR_DISABLED_OPCODE); | ||||
} | } | ||||
// if not monolith protocol upgrade (May 2018) then still disabled | // if not monolith protocol upgrade (May 2018) then still disabled | ||||
if (!fEnabledOpCodesMonolith && | if (!fEnabledOpCodesMonolith && | ||||
(opcode == OP_AND || opcode == OP_XOR || opcode == OP_OR)) { | (opcode == OP_AND || opcode == OP_XOR || opcode == OP_OR || | ||||
opcode == OP_DIV)) { | |||||
// Disabled opcodes. | // Disabled opcodes. | ||||
return set_error(serror, SCRIPT_ERR_DISABLED_OPCODE); | return set_error(serror, SCRIPT_ERR_DISABLED_OPCODE); | ||||
} | } | ||||
if (fExec && 0 <= opcode && opcode <= OP_PUSHDATA4) { | if (fExec && 0 <= opcode && opcode <= OP_PUSHDATA4) { | ||||
if (fRequireMinimal && | if (fRequireMinimal && | ||||
!CheckMinimalPush(vchPushValue, opcode)) { | !CheckMinimalPush(vchPushValue, opcode)) { | ||||
return set_error(serror, SCRIPT_ERR_MINIMALDATA); | return set_error(serror, SCRIPT_ERR_MINIMALDATA); | ||||
▲ Show 20 Lines • Show All 546 Lines • ▼ Show 20 Lines | try { | ||||
break; | break; | ||||
} | } | ||||
popstack(stack); | popstack(stack); | ||||
stack.push_back(bn.getvch()); | stack.push_back(bn.getvch()); | ||||
} break; | } break; | ||||
case OP_ADD: | case OP_ADD: | ||||
case OP_SUB: | case OP_SUB: | ||||
case OP_DIV: | |||||
case OP_BOOLAND: | case OP_BOOLAND: | ||||
case OP_BOOLOR: | case OP_BOOLOR: | ||||
case OP_NUMEQUAL: | case OP_NUMEQUAL: | ||||
case OP_NUMEQUALVERIFY: | case OP_NUMEQUALVERIFY: | ||||
case OP_NUMNOTEQUAL: | case OP_NUMNOTEQUAL: | ||||
case OP_LESSTHAN: | case OP_LESSTHAN: | ||||
case OP_GREATERTHAN: | case OP_GREATERTHAN: | ||||
case OP_LESSTHANOREQUAL: | case OP_LESSTHANOREQUAL: | ||||
Show All 12 Lines | try { | ||||
case OP_ADD: | case OP_ADD: | ||||
bn = bn1 + bn2; | bn = bn1 + bn2; | ||||
break; | break; | ||||
case OP_SUB: | case OP_SUB: | ||||
bn = bn1 - bn2; | bn = bn1 - bn2; | ||||
break; | break; | ||||
case OP_DIV: | |||||
// 2nd operand must not be 0 | |||||
if (bn2 == 0) { | |||||
return set_error(serror, | |||||
SCRIPT_ERR_DIV_BY_ZERO); | |||||
} | |||||
bn = bn1 / bn2; | |||||
break; | |||||
case OP_BOOLAND: | case OP_BOOLAND: | ||||
bn = (bn1 != bnZero && bn2 != bnZero); | bn = (bn1 != bnZero && bn2 != bnZero); | ||||
break; | break; | ||||
case OP_BOOLOR: | case OP_BOOLOR: | ||||
bn = (bn1 != bnZero || bn2 != bnZero); | bn = (bn1 != bnZero || bn2 != bnZero); | ||||
break; | break; | ||||
case OP_NUMEQUAL: | case OP_NUMEQUAL: | ||||
bn = (bn1 == bn2); | bn = (bn1 == bn2); | ||||
▲ Show 20 Lines • Show All 730 Lines • Show Last 20 Lines |