add rp6502 target

2023-11-16 18:46:16 -08:00
parent d7d1d89698
commit b17c4d3434
37 changed files with 1253 additions and 0 deletions
--- a/libsrc/rp6502/write.c
+++ b/libsrc/rp6502/write.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2023 Rumbledethumps
+ *
+ * SPDX-License-Identifier: Zlib
+ * SPDX-License-Identifier: BSD-3-Clause
+ * SPDX-License-Identifier: Unlicense
+ */
+
+#include <rp6502.h>
+#include <unistd.h>
+
+int __fastcall__ write(int fildes, const void *buf, unsigned count)
+{
+    int ax, total = 0;
+    while (count)
+    {
+        int blockcount = (count > 256) ? 256 : count;
+        ax = write_xstack(&((char *)buf)[total], blockcount, fildes);
+        if (ax < 0)
+        {
+            return ax;
+        }
+        total += ax;
+        count -= ax;
+        if (ax < blockcount)
+        {
+            break;
+        }
+    }
+    return total;
+}