improved the soundblaster code, but still doesn't work on the real

[dos_sbtest] / src / dpmi.h

diff --git a/src/dpmi.h b/src/dpmi.h
new file mode 100644 (file)
index 0000000..5f06823
--- /dev/null
+++ b/src/dpmi.h
@@ -0,0 +1,34 @@
+#ifndef DPMI_H_
+#define DPMI_H_
+
+#include "inttypes.h"
+
+struct dpmi_real_regs {
+       uint32_t edi, esi, ebp;
+       uint32_t reserved;
+       uint32_t ebx, edx, ecx, eax;
+       uint16_t flags;
+       uint16_t es, ds, fs, gs;
+       uint16_t ip, cs, sp, ss;
+};
+
+uint16_t dpmi_alloc(unsigned int par, uint16_t *sel);
+void dpmi_free(uint16_t sel);
+
+#pragma aux dpmi_alloc = \
+               "mov eax, 0x100" \
+               "int 0x31" \
+               "mov [edi], dx" \
+               value[ax] parm[ebx][edi];
+
+#pragma aux dpmi_free = \
+               "mov eax, 0x101" \
+               "int 0x31" \
+               parm[dx];
+
+void dpmi_real_int(int inum, struct dpmi_real_regs *regs);
+
+void *dpmi_mmap(uint32_t phys_addr, unsigned int size);
+void dpmi_munmap(void *addr);
+
+#endif /* DPMI_H_ */