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c# implementation using new i/o instructions

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FossilOrigin-Name: b6c0c757cbf7095ea30aa7b62aa9d2e6a0bc9137012b1746bc2c3c239cf46ecb
This commit is contained in:
crc 2018-11-22 00:57:08 +00:00
parent 49525f2ebd
commit 1236b51664
1 changed files with 17 additions and 9 deletions
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24
interfaces/repl.cs
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@ -2,7 +2,7 @@
* Nga Virtual Machine & Interface for RETRO 12 * Nga Virtual Machine & Interface for RETRO 12
* *
* Copyright (c) 2009-2011, Simon Waite * Copyright (c) 2009-2011, Simon Waite
* Copyright (c) 2009-2017, Charles Childers * Copyright (c) 2009-2018, Charles Childers
*/ */
using System; using System;
@ -31,7 +31,8 @@ namespace Nga
VM_FETCH, VM_STORE, VM_ADD, VM_FETCH, VM_STORE, VM_ADD,
VM_SUB, VM_MUL, VM_DIVMOD, VM_SUB, VM_MUL, VM_DIVMOD,
VM_AND, VM_OR, VM_XOR, VM_AND, VM_OR, VM_XOR,
VM_SHIFT, VM_ZRET, VM_END VM_SHIFT, VM_ZRET, VM_END,
VM_IE, VM_IQ, VM_II
} }
string rxGetString(int starting) string rxGetString(int starting)
@ -273,6 +274,18 @@ namespace Nga
case OpCodes.VM_END: case OpCodes.VM_END:
ip = 524288 * 16; ip = 524288 * 16;
break; break;
case OpCodes.VM_IE:
data[sp] = 1;
break;
case OpCodes.VM_IQ:
data[sp++] = 0;
data[sp] = 0;
break;
case OpCodes.VM_II:
sp--;
char c = (char)data[sp--];
Console.Write(c);
break;
default: default:
ip = 524288 * 16; ip = 524288 * 16;
break; break;
@ -285,7 +298,7 @@ namespace Nga
int valid = -1; int valid = -1;
for (int i = 0; i < 4; i++) { for (int i = 0; i < 4; i++) {
current = raw & 0xFF; current = raw & 0xFF;
if (!(current >= 0 && current <= 26)) if (!(current >= 0 && current <= 29))
valid = 0; valid = 0;
raw = raw >> 8; raw = raw >> 8;
} }
@ -328,14 +341,9 @@ public void executeFunction(int cell) {
opcode = memory[ip]; opcode = memory[ip];
if (ngaValidatePackedOpcodes(opcode) != 0) { if (ngaValidatePackedOpcodes(opcode) != 0) {
ngaProcessPackedOpcodes(opcode); ngaProcessPackedOpcodes(opcode);
} else {
if (opcode == 1000) {
char c = (char)data[sp--];
Console.Write(c);
} else { } else {
ngaProcessOpcode(opcode); ngaProcessOpcode(opcode);
} }
}
ip++; ip++;
if (rsp == 0) if (rsp == 0)
ip = 524288 * 16; ip = 524288 * 16;