From 2d3d9d3a5fd436735b912d1fe0ad731a81eca036 Mon Sep 17 00:00:00 2001
From: Charles Cabergs <me@cacharle.xyz>
Date: Mon, 15 Nov 2021 19:58:43 +0100
Subject: Initial commit

---
 .gitignore |  3 +++
 bfc.c      | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 bfc.c

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..445d02b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+*.o
+a.out
+*.asm
diff --git a/bfc.c b/bfc.c
new file mode 100644
index 0000000..cb1b0f9
--- /dev/null
+++ b/bfc.c
@@ -0,0 +1,59 @@
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+const size_t buffer_size = 256;
+const char* asm_filename = "out.asm";
+
+int main(int argc, char *argv[])
+{
+    FILE* file = fopen(asm_filename, "w");
+    fprintf(
+        file,
+        "section .bss\n"
+        "buffer: resb %zu\n"
+        "section .text\n",
+        "mov rax buffer\n",
+        buffer_size
+    );
+
+    char c;
+    while ((c = fgetc(file)) != EOF)
+    {
+        switch (c)
+        {
+        case '>':
+            fputs("inc rax");
+            break;
+        case '<':
+            fputs("dec rax");
+            break;
+        case '+':
+            fputs("inc [rax]");
+            break;
+        case '-':
+            fputs("dec [rax]");
+            break;
+        case '.':
+            // putchar 
+            break;
+        case ',':
+            // getchar
+            break;
+        case '[':
+            // jump to next ] if byte at data ptr is 0
+            break;
+        case '[':
+            // jump to prev [ if byte at data ptr is not 0
+            break;
+        case ';':
+            // comment
+            break;
+        default:
+            // error
+        }
+    }
+
+
+    return 0;
+}
-- 
cgit