--- /dev/null
+/*
+ * Copyright (c) 2017 Rob Clark <robdclark@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _ASM_H_
+#define _ASM_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "afuc.h"
+
+extern int gpuver;
+
+/**
+ * Intermediate representation for an instruction, before final encoding.
+ * This mostly exists because we need to resolve label offset's in a 2nd
+ * pass, but also so that parser.y doesn't really need to care so much
+ * about the different encodings for 2src regs vs 1src+immed, or mnemonics
+ */
+struct asm_instruction {
+ int tok;
+ int dst;
+ int src1;
+ int src2;
+ int immed;
+ int shift;
+ int bit;
+ uint32_t literal;
+ const char *label;
+
+ bool has_immed : 1;
+ bool has_shift : 1;
+ bool has_bit : 1;
+ bool is_literal : 1;
+ bool rep : 1;
+};
+
+struct asm_label {
+ unsigned offset;
+ const char *label;
+};
+
+struct asm_instruction *next_instr(int tok);
+void decl_label(const char *str);
+
+
+static inline uint32_t
+parse_reg(const char *str)
+{
+ char *retstr;
+ long int ret;
+
+ if (!strcmp(str, "$rem"))
+ return 0x1c;
+ else if (!strcmp(str, "$addr"))
+ return 0x1d;
+ else if (!strcmp(str, "$addr2"))
+ return 0x1e;
+ else if (!strcmp(str, "$data"))
+ return 0x1f;
+
+ ret = strtol(str + 1, &retstr, 16);
+
+ if (*retstr != '\0') {
+ printf("invalid register: %s\n", str);
+ exit(2);
+ }
+
+ return ret;
+}
+
+static inline uint32_t
+parse_literal(const char *str)
+{
+ char *retstr;
+ long int ret;
+
+ ret = strtol(str + 1, &retstr, 16);
+
+ if (*retstr != ']') {
+ printf("invalid literal: %s\n", str);
+ exit(2);
+ }
+
+ return ret;
+}
+
+static inline uint32_t
+parse_bit(const char *str)
+{
+ return strtol(str + 1, NULL, 10);
+}
+
+unsigned parse_control_reg(const char *name);
+
+/* string trailing ':' off label: */
+static inline const char *
+parse_label_decl(const char *str)
+{
+ char *s = strdup(str);
+ s[strlen(s) - 1] = '\0';
+ return s;
+}
+
+void yyset_in (FILE * _in_str );
+
+
+#endif /* _ASM_H_ */