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authorpolwex <polwex@sortug.com>2025-10-05 21:56:51 +0700
committerpolwex <polwex@sortug.com>2025-10-05 21:56:51 +0700
commitfcedfddf00b3f994e4f4e40332ac7fc192c63244 (patch)
tree51d38e62c7bdfcc5f9a5e9435fe820c93cfc9a3d /vere/ext/nasm/asm/rdstrnum.c
claude is gud
Diffstat (limited to 'vere/ext/nasm/asm/rdstrnum.c')
-rw-r--r--vere/ext/nasm/asm/rdstrnum.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/vere/ext/nasm/asm/rdstrnum.c b/vere/ext/nasm/asm/rdstrnum.c
new file mode 100644
index 0000000..319f140
--- /dev/null
+++ b/vere/ext/nasm/asm/rdstrnum.c
@@ -0,0 +1,70 @@
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 1996-2016 The NASM Authors - All Rights Reserved
+ * See the file AUTHORS included with the NASM distribution for
+ * the specific copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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.
+ *
+ * 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.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * rdstrnum.c
+ *
+ * This converts a NASM string to an integer, used when a string
+ * is used in an integer constant context. This is a binary conversion,
+ * not a conversion from a numeric constant in text form.
+ */
+
+#include "compiler.h"
+#include "nasmlib.h"
+#include "nasm.h"
+
+int64_t readstrnum(char *str, int length, bool *warn)
+{
+ int64_t charconst = 0;
+ int i;
+
+ *warn = false;
+
+ str += length;
+ if (globalbits == 64) {
+ for (i = 0; i < length; i++) {
+ if (charconst & UINT64_C(0xFF00000000000000))
+ *warn = true;
+ charconst &= ~UINT64_C(0xFF00000000000000);
+ charconst = (charconst << 8) + (uint8_t)*--str;
+ }
+ } else {
+ for (i = 0; i < length; i++) {
+ if (charconst & UINT32_C(0xFF000000))
+ *warn = true;
+ charconst &= ~UINT32_C(0xFF000000);
+ charconst = (charconst << 8) + (uint8_t)*--str;
+ }
+ }
+ return charconst;
+}