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authorAryadev Chavali <aryadev@aryadevchavali.com>2024-04-14 02:35:09 +0630
committerAryadev Chavali <aryadev@aryadevchavali.com>2024-04-14 02:35:09 +0630
commit1cd31a270207d5dfefbfe5f712d850d83e29093f (patch)
tree3ecc196fa156c294e67eec2565d0debaf531b1e5 /lib/prog.h
parent99a81ce95d8d507e0b73959a180727e05573e6c9 (diff)
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Moved struct definitions lib/inst.h -> lib/prog.h
This means if I write the new assembler in another language I only need to FFI this header rather than all the functions as well which may not be as useful.
Diffstat (limited to 'lib/prog.h')
-rw-r--r--lib/prog.h176
1 files changed, 176 insertions, 0 deletions
diff --git a/lib/prog.h b/lib/prog.h
new file mode 100644
index 0000000..4548f08
--- /dev/null
+++ b/lib/prog.h
@@ -0,0 +1,176 @@
+/* Copyright (C) 2024 Aryadev Chavali
+
+ * You may distribute and modify this code under the terms of the
+ * GPLv2 license. You should have received a copy of the GPLv2
+ * license with this file. If not, please write to:
+ * aryadev@aryadevchavali.com.
+
+ * Created: 2024-04-14
+ * Author: Aryadev Chavali
+ * Description: Structures for both instructions and programs for the
+ * virtual machine
+ */
+
+#ifndef PROG_H
+#define PROG_H
+
+#include <lib/base.h>
+
+typedef enum
+{
+ OP_NOOP = 0,
+
+ // Dealing with data and registers
+ OP_PUSH_BYTE,
+ OP_PUSH_HWORD,
+ OP_PUSH_WORD,
+
+ OP_POP_BYTE,
+ OP_POP_HWORD,
+ OP_POP_WORD,
+
+ OP_PUSH_REGISTER_BYTE,
+ OP_PUSH_REGISTER_HWORD,
+ OP_PUSH_REGISTER_WORD,
+
+ OP_MOV_BYTE,
+ OP_MOV_HWORD,
+ OP_MOV_WORD,
+
+ OP_DUP_BYTE,
+ OP_DUP_HWORD,
+ OP_DUP_WORD,
+
+ // Dealing with the heap
+ OP_MALLOC_BYTE,
+ OP_MALLOC_HWORD,
+ OP_MALLOC_WORD,
+
+ OP_MALLOC_STACK_BYTE,
+ OP_MALLOC_STACK_HWORD,
+ OP_MALLOC_STACK_WORD,
+
+ OP_MSET_BYTE,
+ OP_MSET_HWORD,
+ OP_MSET_WORD,
+
+ OP_MSET_STACK_BYTE,
+ OP_MSET_STACK_HWORD,
+ OP_MSET_STACK_WORD,
+
+ OP_MGET_BYTE,
+ OP_MGET_HWORD,
+ OP_MGET_WORD,
+
+ OP_MGET_STACK_BYTE,
+ OP_MGET_STACK_HWORD,
+ OP_MGET_STACK_WORD,
+
+ OP_MDELETE,
+ OP_MSIZE,
+
+ // Boolean operations
+ OP_NOT_BYTE,
+ OP_NOT_HWORD,
+ OP_NOT_WORD,
+
+ OP_OR_BYTE,
+ OP_OR_HWORD,
+ OP_OR_WORD,
+
+ OP_AND_BYTE,
+ OP_AND_HWORD,
+ OP_AND_WORD,
+
+ OP_XOR_BYTE,
+ OP_XOR_HWORD,
+ OP_XOR_WORD,
+
+ OP_EQ_BYTE,
+ OP_EQ_HWORD,
+ OP_EQ_WORD,
+
+ // Mathematical operations
+ OP_LT_BYTE,
+ OP_LT_CHAR,
+ OP_LT_HWORD,
+ OP_LT_INT,
+ OP_LT_LONG,
+ OP_LT_WORD,
+
+ OP_LTE_BYTE,
+ OP_LTE_CHAR,
+ OP_LTE_HWORD,
+ OP_LTE_INT,
+ OP_LTE_LONG,
+ OP_LTE_WORD,
+
+ OP_GT_BYTE,
+ OP_GT_CHAR,
+ OP_GT_HWORD,
+ OP_GT_INT,
+ OP_GT_LONG,
+ OP_GT_WORD,
+
+ OP_GTE_BYTE,
+ OP_GTE_CHAR,
+ OP_GTE_HWORD,
+ OP_GTE_INT,
+ OP_GTE_LONG,
+ OP_GTE_WORD,
+
+ OP_PLUS_BYTE,
+ OP_PLUS_HWORD,
+ OP_PLUS_WORD,
+
+ OP_SUB_BYTE,
+ OP_SUB_HWORD,
+ OP_SUB_WORD,
+
+ OP_MULT_BYTE,
+ OP_MULT_HWORD,
+ OP_MULT_WORD,
+
+ // Simple I/O
+ OP_PRINT_BYTE,
+ OP_PRINT_CHAR,
+ OP_PRINT_HWORD,
+ OP_PRINT_INT,
+ OP_PRINT_LONG,
+ OP_PRINT_WORD,
+
+ // Program control flow
+ OP_JUMP_ABS,
+ OP_JUMP_STACK,
+ OP_JUMP_IF_BYTE,
+ OP_JUMP_IF_HWORD,
+ OP_JUMP_IF_WORD,
+ // Subroutines
+ OP_CALL,
+ OP_CALL_STACK,
+ OP_RET,
+
+ // Should not be an opcode
+ NUMBER_OF_OPCODES,
+ OP_HALT = 0b11111111, // top of the byte is a HALT
+} opcode_t;
+
+typedef struct
+{
+ opcode_t opcode;
+ data_t operand;
+} inst_t;
+
+typedef struct
+{
+ word start_address;
+} prog_header_t;
+
+typedef struct
+{
+ prog_header_t header;
+ word count;
+ inst_t instructions[];
+} prog_t;
+
+#endif