MZ is back!HEADmain

1 files changed, 33 insertions, 0 deletions

diff --git a/v4.0/src/BIOS/DEFEMS.INC b/v4.0/src/BIOS/DEFEMS.INC
new file mode 100644
index 0000000..a1786d0
--- /dev/null
+++ b/v4.0/src/BIOS/DEFEMS.INC
@@ -0,0 +1,33 @@
+;J.K. This is a temporary version of EMS function definitions needed for
+;IBMBIO SYSINIT.
+
+EMS_INT         equ     67h     ;interrupt vector designated for EMS.
+
+EMS_STATUS      equ     40h     ;status of memery manager
+EQ_PAGES        equ     42h     ;get number of unallocated & total pages
+E_GET_HANDLE    equ     43h     ;allocate pages
+EMAP_L_TO_P     equ     44h     ;Map logical to physical page
+EMAP_STATE      equ     4Fh     ;Mapping status
+    GET_MAP_STATE     equ    00h
+    GET_MAP_SIZE      equ    02h
+    SET_MAP_STATE     equ    01h
+EDE_ALLOCATE    equ     45h     ;deallocate pages
+EMS_VERSION     equ     46h     ;Get EMM version number
+GET_PAGE_FRAME  equ     58h     ;Get page frame address
+    GET_PAGEFRAME_TAB equ 00H
+    GET_NUM_PAGEFRAME equ 01H
+EMS_HANDLE_NAME equ     53h
+    SET_HANDLE_NAME equ  01h
+
+IBM_PAGE_ID     equ     255     ;Physical page id that will be used by
+                                ;IBMBIO and IBMDOS for buffer manipulation.
+
+;MAX_NUM_PAGEFRAME equ   12     ;maximum number of page frames IBMBIO can
+                                ;handle
+
+MAX_NUM_PAGEFRAME equ    64     ;maximum number of page frames MSBIO can
+                                ;handle
+
+EMSVERSION      equ     40h     ;4.0
+
+
\ No newline at end of file