Add files via upload

2026-06-16 07:49:24 +00:00 · 2021-01-12 17:47:04 -06:00
parent dda6c7045d
commit a2f096eccc
99 changed files with 48627 additions and 0 deletions
@@ -0,0 +1,47 @@
+DOSCALL   SEGMENT 'CODE'
+          ASSUME CS:DOSCALL,DS:DOSCALL
+;
+;Procedure DOSVIO(VAR: AX, BX, CX, DX: Word);
+;
+; Issue a DOS VIDEO I/O INT (10) with register values set by caller
+;
+; FRAME:  ADR   AX; 12
+;         ADR   BX; 10
+;         ADR   CX; 08
+;         ADR   DX; 06
+;         <RET BP>; 00
+;
+          PUBLIC DOSVIO
+DOSVIO    PROC  FAR
+          PUSH  BP             ;Save current BP value
+          MOV   BP,SP          ;To address parms
+          MOV   DI,[BP+12]     ;Address of AX
+          MOV   AX,[DI]        ;Set AX value
+          MOV   DI,[BP+10]     ;Address of BX
+          MOV   BX,[DI]        ;Set BX value
+          MOV   DI,[BP+08]     ;Address of CX
+          MOV   CX,[DI]        ;Set CX value
+          MOV   DI,[BP+06]     ;Address of DX
+          MOV   DX,[DI]        ;Set DX value
+ 
+          INT   10H            ;Call BIOS with caller's AX, BX, CX, DX
+ 
+          MOV   DI,[BP+12]     ;Now put them all back...
+          MOV   [DI],AX
+          MOV   DI,[BP+10]
+          MOV   [DI],BX
+          MOV   DI,[BP+08]
+          MOV   [DI],CX
+          MOV   DI,[BP+06]
+          MOV   [DI],DX
+ 
+          POP   BP             ;Restore frame pointer
+          RET   6              ;Return, poping 6 bytes
+ 
+DOSVIO    ENDP
+ 
+DOSCALL   ENDS
+          END
+                                                                      
+*** CREATED 06/28/82 21:05:48 BY AMD *** 
+