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Starting development on assembly language

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This commit is contained in:
Aryadev Chavali
2023-10-23 16:53:50 +01:00
parent 42ac28d44a
commit 92855ebb3e
2 changed files with 70 additions and 1 deletions
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25
Makefile
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@@ -28,6 +28,14 @@ VM_VERBOSE=0
VM_CFLAGS:=$(CFLAGS) -D VERBOSE=$(VM_VERBOSE)
VM_OUT=$(DIST)/ovm.out
## ASSEMBLY setup
ASM_DIST=$(DIST)/asm
ASM_SRC=asm
ASM_CODE:=$(addprefix $(ASM_SRC)/, )
ASM_OBJECTS:=$(ASM_CODE:$(ASM_SRC)/%.c=$(ASM_DIST)/%.o)
ASM_DEPS:=$(ASM_OBJECTS:%.o=%.d) $(ASM_DIST)/main.d
ASM_CFLAGS=$(CFLAGS)
ASM_OUT=$(DIST)/asm.out
## EXAMPLES setup
EXAMPLES_DIST=$(DIST)/examples
@@ -36,10 +44,11 @@ EXAMPLES_CFLAGS=$(CFLAGS)
EXAMPLES=$(DIST)/fib.out
# Things you want to build on `make`
all: $(DIST) lib vm examples
all: $(DIST) lib vm asm examples
lib: $(LIB_DIST) $(LIB_OBJECTS)
vm: $(VM_DIST) $(VM_OUT)
asm: $(ASM_DIST) $(ASM_OUT)
examples: $(EXAMPLES_DIST) $(EXAMPLES)
# Recipes
@@ -61,6 +70,17 @@ $(VM_DIST)/%.o: $(VM_SRC)/%.c
@$(CC) $(VM_CFLAGS) -MMD -c $< -o $@ $(LIBS)
@echo -e "$(TERM_GREEN)$@$(TERM_RESET)"
## ASSEMBLY Recipes
$(ASM_OUT): $(LIB_OBJECTS) $(VM_DIST)/inst.o $(ASM_OBJECTS) $(ASM_DIST)/main.o
@$(CC) $(ASM_CFLAGS) $^ -o $@ $(LIBS)
@echo -e "$(TERM_GREEN)$@$(TERM_RESET)"
-include $(ASM_DEPS)
$(ASM_DIST)/%.o: $(ASM_SRC)/%.c
@$(CC) $(ASM_CFLAGS) -MMD -c $< -o $@ $(LIBS)
@echo -e "$(TERM_GREEN)$@$(TERM_RESET)"
## EXAMPLES recipes
$(DIST)/fib.out: $(LIB_OBJECTS) $(VM_OBJECTS) $(ASM_OBJECTS) $(EXAMPLES_DIST)/fib.o
@$(CC) $(EXAMPLES_CFLAGS) $^ -o $@ $(LIBS)
@@ -90,5 +110,8 @@ $(LIB_DIST):
$(VM_DIST):
mkdir -p $(VM_DIST)
$(ASM_DIST):
mkdir -p $(ASM_DIST)
$(EXAMPLES_DIST):
mkdir -p $(EXAMPLES_DIST)

46
asm/main.c Normal file
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@@ -0,0 +1,46 @@
/* Copyright (C) 2023 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: 2023-10-23
* Author: Aryadev Chavali
* Description: Assembly source code compiler, targeting OVM
*/
#include <stdio.h>
#include <lib/darr.h>
typedef enum TokenType
{
TOKEN_WHITESPACE,
TOKEN_BYTE_LITERAL,
TOKEN_HWORD_LITERAL,
TOKEN_WORD_LITERAL,
TOKEN_SYMBOL,
} token_type_t;
typedef struct
{
token_type_t type;
char *str;
size_t str_size;
} token_t;
// We can use darr_read_file as an in memory buffer of source code
// Then just create new darr's for tokens, then instructions. Then
// emit bytecode in the end.
int main(void)
{
FILE *fp = fopen("main.asm", "rb");
darr_t darr = darr_read_file(fp);
fclose(fp);
darr.data[darr.available - 1] = '\0';
printf("%lu/%lu\n%s\n", darr.used, darr.available, darr.data);
free(darr.data);
return 0;
}