start writing new VBE routines

[dosdemo] / src / dos / cdpmi.h

diff --git a/src/dos/cdpmi.h b/src/dos/cdpmi.h
index cdfd2f7..4fc2c30 100644 (file)
--- a/src/dos/cdpmi.h
+++ b/src/dos/cdpmi.h
@@ -6,7 +6,9 @@
 #endif
 
 #include "inttypes.h"
+#include "util.h"
 
+#pragma pack (push, 1)
 struct dpmi_regs {
        uint32_t edi, esi, ebp;
        uint32_t reserved;
@@ -14,7 +16,8 @@ struct dpmi_regs {
        uint16_t flags;
        uint16_t es, ds, fs, gs;
        uint16_t ip, cs, sp, ss;
-};
+} PACKED;
+#pragma pack (pop)
 
 uint16_t dpmi_alloc(unsigned int par, uint16_t *sel);
 void dpmi_free(uint16_t sel);
@@ -27,6 +30,9 @@ void dpmi_munmap(void *addr);
                "mov ax, 0x100" \
                "int 0x31" \
                "mov [edi], dx" \
+               "jnc alloc_skip_err" \
+               "xor ax, ax" \
+               "alloc_skip_err:" \
                value[ax] \
                parm[ebx][edi];