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[VM] Implemented shift_left and shift_right opcodes.

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This commit is contained in:
jtuu 2019-10-02 20:16:05 +03:00
parent c628c30e1b
commit 2e672c12b2
1 changed files with 14 additions and 1 deletions
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15
src/quest_editor/scripting/vm/index.ts
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@ -45,6 +45,8 @@ import {
OP_ORI,
OP_XOR,
OP_XORI,
OP_SHIFT_LEFT,
OP_SHIFT_RIGHT,
} from "../opcodes";
import Logger from "js-logger";
@ -69,7 +71,9 @@ const numeric_ops: Record<"add" |
"mod" |
"and" |
"or" |
"xor",
"xor" |
"shl" |
"shr",
BinaryNumericOperation> = {
add: (a, b) => a + b,
sub: (a, b) => a - b,
@ -80,6 +84,8 @@ const numeric_ops: Record<"add" |
and: (a, b) => a & b,
or: (a, b) => a | b,
xor: (a, b) => a ^ b,
shl: (a, b) => a << b,
shr: (a, b) => a >>> b,
};
export class VirtualMachine {
@ -263,6 +269,13 @@ export class VirtualMachine {
case OP_XORI.code:
this.do_numeric_op_with_literal(arg0, arg1, numeric_ops.xor);
break;
// shift operations
case OP_SHIFT_LEFT.code:
this.do_numeric_op_with_register(arg0, arg1, numeric_ops.shl);
break;
case OP_SHIFT_RIGHT.code:
this.do_numeric_op_with_register(arg0, arg1, numeric_ops.shr);
break;
default:
throw new Error(`Unsupported instruction: ${inst.opcode.mnemonic}.`);
}