now it plays properly, will fix up some leftovers later

[bootcard] / tools / gentune.c

diff --git a/tools/gentune.c b/tools/gentune.c
new file mode 100644 (file)
index 0000000..627900e
--- /dev/null
+++ b/tools/gentune.c
@@ -0,0 +1,62 @@
+#include <stdio.h>
+#include <stdint.h>
+
+uint32_t music[] = {
+       0x0a2f8f00, 0xa11123a1, 0x23a11423, 0x28000023, 0xbe322f8f, 0x25c0391f,
+       0x4b23a13c, 0x8f500000, 0x23a15a2f, 0x641ab161, 0x476e1ab1, 0x1fbe751c,
+       0x8223a178, 0xa18925c0, 0x1fbe8c23, 0xaa0000a0, 0
+};
+
+struct {
+       unsigned int cnt;
+       const char *name;
+} notes[] = {
+       {0, "0"},
+       {6833, "F3"},
+       {7239, "E3"},
+       {8126, "D3"},
+       {9121, "C3"},
+       {9664, "B2"},
+       {12175, "G2"},
+       {0, 0}
+};
+
+const char *pre =
+       "G2     equ 12175\n"
+       "C3     equ 9121\n"
+       "D3     equ 8126\n"
+       "B2     equ 9664\n"
+       "F3     equ 6833\n"
+       "E3     equ 7239\n"
+       "\n"
+       "%macro EV 2\n"
+       "       db %1 >> 4\n"
+       "       dw %2\n"
+       "%endmacro\n\n";
+
+
+int main(void)
+{
+       int i, j;
+       unsigned char *mptr = (unsigned char*)music;
+
+       printf("%s", pre);
+
+       printf("music:");
+       for(i=0; i<22; i++) {
+               const char *nn = "?";
+               unsigned int tm = (unsigned int)*mptr++ << 4;
+               unsigned int cnt = *(uint16_t*)mptr;
+               mptr += 2;
+
+               for(j=0; notes[j].name; j++) {
+                       if(notes[j].cnt == cnt) {
+                               nn = notes[j].name;
+                               break;
+                       }
+               }
+
+               printf("\tEV  %4u,  %s\n", tm, nn);
+       }
+       return 0;
+}