Introduced a new mathematical operator MULT

Thankfully multiplication, like addition, is the same under 2s
complement as it is for unsigned numbers.  So I just need to implement
those versions to be fine.

1 files changed, 12 insertions, 4 deletions

diff --git a/lib/inst.c b/lib/inst.c
index 9a7fac8..85d25f2 100644
--- a/lib/inst.c
+++ b/lib/inst.c
@@ -194,6 +194,14 @@ const char *opcode_as_cstr(opcode_t code)
     break;
   case OP_PLUS_WORD:
     return "PLUS_WORD";
+  case OP_MULT_BYTE:
+    return "MULT_BYTE";
+    break;
+  case OP_MULT_HWORD:
+    return "MULT_HWORD";
+    break;
+  case OP_MULT_WORD:
+    return "MULT_WORD";
     break;
   case OP_JUMP_ABS:
     return "JUMP_ABS";
@@ -261,7 +269,7 @@ void data_print(data_t datum, data_type_t type, FILE *fp)
 
 void inst_print(inst_t instruction, FILE *fp)
 {
-  static_assert(NUMBER_OF_OPCODES == 70, "inst_bytecode_size: Out of date");
+  static_assert(NUMBER_OF_OPCODES == 73, "inst_bytecode_size: Out of date");
   fprintf(fp, "%s(", opcode_as_cstr(instruction.opcode));
   if (OPCODE_IS_TYPE(instruction.opcode, OP_PUSH))
   {
@@ -291,7 +299,7 @@ void inst_print(inst_t instruction, FILE *fp)
 
 size_t inst_bytecode_size(inst_t inst)
 {
-  static_assert(NUMBER_OF_OPCODES == 70, "inst_bytecode_size: Out of date");
+  static_assert(NUMBER_OF_OPCODES == 73, "inst_bytecode_size: Out of date");
   size_t size = 1; // for opcode
   if (OPCODE_IS_TYPE(inst.opcode, OP_PUSH))
   {
@@ -315,7 +323,7 @@ size_t inst_bytecode_size(inst_t inst)
 
 void inst_write_bytecode(inst_t inst, darr_t *darr)
 {
-  static_assert(NUMBER_OF_OPCODES == 70, "inst_write_bytecode: Out of date");
+  static_assert(NUMBER_OF_OPCODES == 73, "inst_write_bytecode: Out of date");
   // Append opcode
   darr_append_byte(darr, inst.opcode);
   // Then append 0 or more operands
@@ -388,7 +396,7 @@ data_t read_type_from_darr(darr_t *darr, data_type_t type)
 
 inst_t inst_read_bytecode(darr_t *darr)
 {
-  static_assert(NUMBER_OF_OPCODES == 70, "inst_read_bytecode: Out of date");
+  static_assert(NUMBER_OF_OPCODES == 73, "inst_read_bytecode: Out of date");
   if (darr->used >= darr->available)
     return (inst_t){0};
   inst_t inst     = {0};