1 files changed, 113 insertions, 0 deletions
diff --git a/usr.bin/oasm/parse.c b/usr.bin/oasm/parse.c
new file mode 100644
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--- /dev/null
+++ b/usr.bin/oasm/parse.c
@@ -0,0 +1,113 @@
+/* Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <oasm/state.h>
+#include <oasm/lex.h>
+#include <oasm/parse.h>
+#include <oasm/log.h>
+
+static const char *tokstr[] = {
+    [ TT_UNKNOWN] = "bad",
+    [ TT_ADD ] = "add",
+    [ TT_SUB ] = "sub",
+    [ TT_MUL ] = "mul",
+    [ TT_DIV ] = "div",
+    [ TT_COMMA ] = ",",
+    [ TT_INC ] = "inc",
+    [ TT_DEC ] = "dec",
+    [ TT_MOV ] = "mov",
+
+    /* X<n> registers */
+    [ TT_X0 ]  = "x0",
+    [ TT_X1 ]  = "x1",
+    [ TT_X2 ]  = "x2",
+    [ TT_X3 ]  = "x3",
+    [ TT_X4 ]  = "x4",
+    [ TT_X5 ]  = "x5",
+    [ TT_X6 ]  = "x6",
+    [ TT_X7  ] = "x7",
+    [ TT_X8 ]  = "x8",
+    [ TT_X9 ]  = "x9",
+    [ TT_X10 ] = "x10",
+    [ TT_X11 ] = "x11",
+    [ TT_X12 ] = "x12",
+    [ TT_X13 ] = "x13",
+    [ TT_X14 ] = "x14",
+    [ TT_X15 ] = "x15",
+
+    /* V<n> registers */
+    [ TT_F0 ]  = "v0",
+    [ TT_F1 ]  = "v1",
+    [ TT_F2 ]  = "v2",
+    [ TT_F3 ]  = "v3",
+    [ TT_F4 ]  = "v4",
+    [ TT_F5 ]  = "v5",
+    [ TT_F6 ]  = "v6",
+    [ TT_F7 ]  = "v7",
+
+    /* D<n> registers */
+    [ TT_D0 ]  = "d0",
+    [ TT_D1 ]  = "d1",
+    [ TT_D2 ]  = "d2",
+    [ TT_D3 ]  = "d3",
+    [ TT_D4 ]  = "d4",
+    [ TT_D5 ]  = "d5",
+    [ TT_D6 ]  = "d6",
+    [ TT_D7 ]  = "d7",
+
+    /* V<n> registers */
+    [ TT_V0 ]  = "v0",
+    [ TT_V1 ]  = "v1",
+    [ TT_V2 ]  = "v2",
+    [ TT_V3 ]  = "v3",
+    [ TT_V4 ]  = "v4",
+    [ TT_V5 ]  = "v5",
+    [ TT_V6 ]  = "v6",
+    [ TT_V7 ]  = "v7",
+};
+
+void
+parse_enter(struct oasm_state *state)
+{
+    struct oasm_token tok;
+    int error = 0;
+
+    for (;;) {
+        error = lex_tok(state, &tok);
+        if (error < 0) {
+            break;
+        }
+
+        if (tok.raw != NULL) {
+            free(tok.raw);
+        }
+    }
+}