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[VM] Implemented arg_pushs and arg_pusha.

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This commit is contained in:
jtuu 2019-10-11 11:11:06 +03:00
parent 2909b1bb3e
commit 21299646e4
1 changed files with 25 additions and 5 deletions
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30
src/quest_editor/scripting/vm/index.ts
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@ -8,6 +8,8 @@ import {
OP_ARG_PUSHL,
OP_ARG_PUSHR,
OP_ARG_PUSHW,
OP_ARG_PUSHA,
OP_ARG_PUSHS,
OP_CALL,
OP_CLEAR,
OP_DIV,
@ -85,6 +87,8 @@ const REGISTER_SIZE = 4;
const VARIABLE_STACK_LENGTH = 16; // TODO: verify this value
const ARG_STACK_SLOT_SIZE = 4;
const ARG_STACK_LENGTH = 8;
const STRING_ARG_STORE_ADDRESS = 0x00a92700;
const STRING_ARG_STORE_SIZE = 1024; // TODO: verify this value
export enum ExecutionResult {
Ok,
@ -384,6 +388,10 @@ export class VirtualMachine {
REGISTER_SIZE * REGISTER_COUNT,
REGISTERS_BASE_ADDRESS,
)!;
private string_arg_store = this.memory.allocate(
STRING_ARG_STORE_SIZE,
STRING_ARG_STORE_ADDRESS,
);
private object_code: Segment[] = [];
private label_to_seg_idx: Map<number, number> = new Map();
private thread: Thread[] = [];
@ -521,6 +529,22 @@ export class VirtualMachine {
case OP_ARG_PUSHW.code:
exec.push_arg(inst.args[0].value, Kind.Word);
break;
case OP_ARG_PUSHA.code:
// push address of register
exec.push_arg(this.get_register_address(inst.args[0].value), Kind.DWord);
break;
case OP_ARG_PUSHS.code:
{
// store string and push its address
const string_arg = arg0 as string;
this.string_arg_store.write_string_utf16_at(
0,
string_arg,
string_arg.length * 2,
);
exec.push_arg(this.string_arg_store.address, Kind.String);
}
break;
// arithmetic operations
case OP_ADD.code:
case OP_FADD.code:
@ -994,11 +1018,7 @@ class Thread {
*/
public global: boolean;
constructor(
next: ExecutionLocation,
arg_stack: VirtualMachineMemoryBuffer,
global: boolean,
) {
constructor(next: ExecutionLocation, arg_stack: VirtualMachineMemoryBuffer, global: boolean) {
this.call_stack = [next];
this.global = global;