From 679ffb09d45bc86d8fb98439f7488924070fc7e8 Mon Sep 17 00:00:00 2001
From: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Date: Mon, 26 Aug 2019 00:44:43 +0200
Subject: Add #pragma processing to integrated assembler and its usage to
 control windows.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
---
 qtmips_asm/simpleasm.cpp | 22 +++++++++++++++++++++-
 qtmips_asm/simpleasm.h   |  4 +++-
 2 files changed, 24 insertions(+), 2 deletions(-)

(limited to 'qtmips_asm')

diff --git a/qtmips_asm/simpleasm.cpp b/qtmips_asm/simpleasm.cpp
index 223b34d..8695624 100644
--- a/qtmips_asm/simpleasm.cpp
+++ b/qtmips_asm/simpleasm.cpp
@@ -114,6 +114,7 @@ bool SimpleAsm::process_line(QString line, QString filename,
     bool maybe_label = true;
     bool final = false;
     bool separator;
+    bool space_separated = false;
     int token_beg = -1;
     int token_last = -1;
     int operand_num = -1;
@@ -129,6 +130,11 @@ bool SimpleAsm::process_line(QString line, QString filename,
                 if (line.mid(pos).startsWith("#include")) {
                     if ((line.count() > pos + 8) && !line.at(pos + 8).isSpace())
                         final = true;
+                } else if (line.mid(pos).startsWith("#pragma")) {
+                    if ((line.count() > pos + 7) && !line.at(pos + 7).isSpace())
+                        final = true;
+                    else
+                        space_separated = true;
                 } else {
                     final = true;
                 }
@@ -140,7 +146,9 @@ bool SimpleAsm::process_line(QString line, QString filename,
                     if (line.at(pos + 1) == '/')
                         final = true;
             }
-            separator = final || (maybe_label && (ch == ':')) || ((operand_num >= 0) && (ch == ','));
+            separator = final || (maybe_label && (ch == ':')) ||
+                        ((operand_num >= 0) && ((ch == ',') ||
+                          (space_separated && ch.isSpace() && (token_beg != -1))));
             if (maybe_label && (ch == ':')) {
                 maybe_label = false;
                 if (token_beg == -1) {
@@ -235,6 +243,9 @@ bool SimpleAsm::process_line(QString line, QString filename,
         return true;
     }
 
+    if (op == "#PRAGMA") {
+        return process_pragma(operands, filename, line_number, error_ptr);
+    }
     if (op == "#INCLUDE") {
         bool res = true;
         QString incname;
@@ -633,3 +644,12 @@ bool SimpleAsm::finish(QString *error_ptr) {
 
     return !error_occured;
 }
+
+bool SimpleAsm::process_pragma(QStringList &operands, QString filename,
+                               int line_number, QString *error_ptr) {
+    (void)operands;
+    (void)filename;
+    (void)line_number;
+    (void)error_ptr;
+    return true;
+}
diff --git a/qtmips_asm/simpleasm.h b/qtmips_asm/simpleasm.h
index ac06ca1..8f74577 100644
--- a/qtmips_asm/simpleasm.h
+++ b/qtmips_asm/simpleasm.h
@@ -74,11 +74,13 @@ public:
     virtual bool process_file(QString filename, QString *error_ptr = nullptr);
     bool finish(QString *error_ptr = nullptr);
 protected:
+    virtual bool process_pragma(QStringList &operands, QString filename = "",
+                        int line_number = 0, QString *error_ptr = nullptr);
     bool error_occured;
     bool fatal_occured;
+    SymbolTableDb *symtab;
 private:
     QStringList include_stack;
-    SymbolTableDb *symtab;
     machine::MemoryAccess *mem;
     machine::RelocExpressionList reloc;
     std::uint32_t address;
-- 
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