Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / libzmpeg3 / video / worksheet.c

diff --git a/cinelerra-5.1/libzmpeg3/video/worksheet.c b/cinelerra-5.1/libzmpeg3/video/worksheet.c
new file mode 100644 (file)
index 0000000..88f4c63
--- /dev/null
+++ b/cinelerra-5.1/libzmpeg3/video/worksheet.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <string.h>
+
+inline static void 
+mmx_601(unsigned long y, unsigned long *output)
+{
+  asm(" movd (%0), %%mm0;   /* Load y   0x00000000000000yy */\
+        psllw $6, %%mm0;    /* Shift y coeffs 0x0000yyy0yyy0yyy0 */\
+        movd %%mm0, (%1);   /* Store output */"
+      :
+      : "r" (&y), "r" (output));
+}
+
+int main(int argc, char *argv[])
+{
+  unsigned char output[16];
+  memset(output, 0, sizeof(output));
+  mmx_601(1, (unsigned long*)output);
+  printf("%02x%02x\n", *(unsigned char*)&output[1], *(unsigned char*)&output[0]);
+  return 0;
+}
+