From 2d04cacc5322951f187bb17e017c12920ac8ebe2 Mon Sep 17 00:00:00 2001
From: Mark Zbikowski
Date: Thu, 25 Apr 2024 21:24:10 +0100
Subject: MZ is back!

---
 v4.0/src/MAPPER/KBDSSTAT.ASM | 129 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 v4.0/src/MAPPER/KBDSSTAT.ASM

(limited to 'v4.0/src/MAPPER/KBDSSTAT.ASM')

diff --git a/v4.0/src/MAPPER/KBDSSTAT.ASM b/v4.0/src/MAPPER/KBDSSTAT.ASM
new file mode 100644
index 0000000..1e76ffc
--- /dev/null
+++ b/v4.0/src/MAPPER/KBDSSTAT.ASM
@@ -0,0 +1,129 @@
+;
+page 80,132
+;
+title CP/DOS KbdSetStatus
+
+        .sall
+        .xlist
+        include kbd.inc       ; kbd set status data structure
+        .list
+
+kbddata segment word public 'kbddata'
+
+        extrn   KbdBitMask:word
+        extrn   KbdTurnAroundCharacter:word
+        extrn   KbdInterimCharFlags:word
+
+kbddata ends
+
+
+
+kbdxxx  segment byte public 'kbd'
+        assume  cs:kbdxxx,ds:nothing,es:nothing,ss:nothing
+;
+; ************************************************************************* *
+; *
+; *      MODULE:  kbdsetStatus
+; *
+; *
+; *      CALLING SEQUENCE:
+; *
+; *                PUSH@ DWORD   data              ;  kbd data structure
+; *                PUSH  WORD    handle            ;  kbd handle
+; *
+; *                CALL  kbdsetstatus
+; *
+; *      RETURN SEQUENCE:
+; *
+; *
+; *
+; *************************************************************************
+;
+        public kbdsetstatus
+
+str     struc
+old_bp  dw      ?
+return  dd      ?
+handle  dw      ?       ; kbd handle
+data    dd      ?       ; kbd data strructure pointer
+str     ends
+
+kbdsetstatus    proc    far
+
+        Enter   KbdSetStatus            ; save registers
+
+        les     di,[bp].data            ; set up kbd data structure
+        mov     ax,seg kbddata
+        mov     ds,ax
+        assume  ds:kbddata
+
+        mov     ax,es:[di].Bit_Mask     ; get bit mask
+
+CheckTurnAround:
+        test    ax,040h                 ; define turnaround character ??
+        jz      CheckInterimFlags       ; jump if not
+
+        mov     bx,es:[di].Turn_Around_Char  ; else, save turnaround character
+        mov     KbdTurnAroundCharacter,bx
+
+CheckInterimFlags:
+        test    ax,020h                 ; check for interim character flag ??
+        jz      CheckShiftState         ; if not jump
+
+        mov     bx,es:[di].Interim_Char_Flags   ; save interim character flag
+        mov     KbdInterimCharFlags,bx
+
+CheckShiftState:
+        test    ax,010h                 ; check for shift state ??
+        jz      CheckCookedOn           ; jump if not
+
+        push    ds                      ; setup for shift state
+        mov     bx,040h
+        mov     ds,bx
+        assume  ds:nothing
+
+        mov     bx,es:[di].Status_Shift_State   ; save shift state data
+        mov     ds:018h,bl
+
+        pop     ds
+        assume  ds:kbddata
+
+CheckCookedOn:                              ; check for cooked mode ??
+        test    ax,008h
+        jz      CheckRawOn
+
+        and     KbdBitMask,not RawModeOn    ; setup cooked mode status
+        or      KbdBitMask,CookedModeOn
+
+CheckRawOn:
+        test    ax,004h                     ; check for raw mdoe ??
+        jz      CheckEchoOff
+
+        and     KbdBitMask,not CookedModeOn ; setup for raw mode
+        or      KbdBitMask,RawModeOn
+
+CheckEchoOff:
+        test    ax,002h                     ; check for echo on
+        jz      CheckEchoOn                 ; branch if so
+
+        and     KbdBitMask,not EchoOn       ; else setup echo off
+        or      KbdBitMask,EchoOff
+
+CheckEchoOn:
+        test    ax,001h
+        jz      EverythingSet
+
+        and     KbdBitMask,not EchoOff      ; setup echo on
+        or      KbdBitMask,EchoOn
+
+EverythingSet:
+        Mexit                               ; pop registers
+
+        ret     size str - 6                ; return
+
+KbdSetStatus    endp
+
+kbdxxx  ends
+
+        end
+
-- 
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