Magnum One/Magnum One (Mid-American Digital) (Disc Manufacturing).iso/d21/dvmacros.arc/DV_MISC.MAC

Text File | 1988-03-12 | 6KB | 210 lines

.XLIST
; DV_MISC.MAC   1.0
; Daniel T. Travison Jr.  01/01/88
; misc macros for 32 bit data handling
; @PUSH, @POP, @MOVE

; NOTES:
;     All TOPVIEW parameters are pushed on the stack
;     as 32 bit values.  These 3 macros are designed
;     to simplify this process by providing names for
;     common register pairs (see replacable paramaters)
;     as well as 32 bit data values.  I also included
;     entries for CR, LF and ESCAPE since I use these
;     in just about ALL desqview programs.
;     All three macros manipulate the data or registers
;     (push, pop, move) in the sequence that Topview
;     and Desqview expect.

; USAGE:
;   > Simply place the macro at the top of your primary
;     source file and they will be available globally.
;   > All keywords ARE case sensitive and should always
;     be in upper case.
;   > The macros mimic those described in The Programmer's
;     Guide to Topview by Alan R. Miller.  I have not
;     found any case where the macros have not worked.
;     Problems that have arisen were related to my
;     programming errors and not the macro execution although
;     I was tempted several times to think otherwise.
;   > Error checking in the macros is limited.  All labels
;     used as parameters are asuumed to by defined as full
;     words.

CR        EQU    13
LF        EQU    10
ESCAPE    EQU    27

; Replacable parameters:
; register pairs:
;    DXCX:    DX and CX
;    BXAX:    BX and AX
;    ESDI:    ES and DI
;    ESSI:    ES and SI
;    DSDI:    DS and DI
;    DSSI:    DS and SI
;
; Memory:
;    32 bit memory area defined as 2 consecutive words
;       ie: LABEL1  DW    2 DUP(0)
;                   @PUSH LABEL1

; @PUSH ADDR1
;    ADDR1 = 32 bit address defined as 2 consecutive words
; or ADDR1 = register pair
;
; pushes 32 bit values onto the stack
; with the high 16 bits pushed 1st.
; argument is either a 16 bit memory
; address or a register pair symbol

@PUSH     MACRO  ADDR1
          IFIDN  <ADDR1>,<DXCX>
            PUSH   DX
            PUSH   CX
          ELSE
          IFIDN  <ADDR1>,<BXAX>
            PUSH   BX
            PUSH   AX
          ELSE
          IFIDN  <ADDR1>,<ESDI>
            PUSH   ES
            PUSH   DI
          ELSE
          IFIDN  <ADDR1>,<ESSI>
            PUSH   ES
            PUSH   SI
          ELSE
          IFIDN  <ADDR1>,<DSDI>
            PUSH   DS
            PUSH   DI
          ELSE
          IFIDN  <ADDR1>,<DSSI>
            PUSH   DS
            PUSH   SI
          ELSE
            PUSH   ADDR1 + 2
            PUSH   ADDR1
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
          ENDM

; @POP  ADDR1
;       ADDR1 = 16 bit address
;    or ADDR1 = register pair
;
; pops 32 bit values off the stack
; with the low 16 bits popped 1st.
; argument is either a 16 bit memory
; address or a register pair symbol

@POP      MACRO  ADDR1
          IFIDN  <ADDR1>,<DXCX>
            POP    CX
            POP    DX
          ELSE
          IFIDN  <ADDR1>,<BXAX>
            POP    AX
            POP    BX
          ELSE
          IFIDN  <ADDR1>,<ESDI>
            POP    DI
            POP    ES
          ELSE
          IFIDN  <ADDR1>,<ESSI>
            POP    SI
            POP    ES
          ELSE
          IFIDN  <ADDR1>,<DSDI>
            POP    DI
            POP    DS
          ELSE
          IFIDN  <ADDR1>,<DSSI>
            POP    SI
            POP    DS
          ELSE
            POP    ADDR1
            POP    ADDR1 + 2
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
          ENDM

; @MOVE ADDR1,ADDR2
;    ADDR1 = 16 bit address or register pair
;    ADDR2 = 16 bit address or register pair
;
; moves a 32 bit value:
; register pair to memory
; memory to a register pair

@MOVE     MACRO  ADDR1,ADDR2
          IFIDN  <ADDR2>,<DXCX>
            MOV    ADDR1,CX
            MOV    ADDR1 + 2,DX
          ELSE
          IFIDN  <ADDR2>,<BXAX>
            MOV    ADDR1,AX
            MOV    ADDR1 + 2,BX
          ELSE
          IFIDN  <ADDR2>,<ESDI>
            MOV    ADDR1,DI
            MOV    ADDR1 + 2,ES
          ELSE
          IFIDN  <ADDR2>,<ESSI>
            MOV    ADDR1,SI
            MOV    ADDR1 + 2,ES
          ELSE
          IFIDN  <ADDR2>,<DSDI>
            MOV    ADDR1,DI
            MOV    ADDR1 + 2,DS
          ELSE
          IFIDN  <ADDR2>,<DSSI>
            MOV    ADDR1,SI
            MOV    ADDR1 + 2,DS
          ELSE
          IFIDN  <ADDR1>,<DXCX>
            MOV    CX,[ADDR2]
            MOV    DX,[ADDR2 + 2]
          ELSE
          IFIDN  <ADDR1>,<BXAX>
            MOV    AX,[ADDR2]
            MOV    BX,[ADDR2 + 2]
          ELSE
          IFIDN  <ADDR1>,<ESDI>
            MOV    DI,[ADDR2]
            MOV    ES,[ADDR2 + 2]
          ELSE
          IFIDN  <ADDR1>,<ESSI>
            MOV    SI,[ADDR2]
            MOV    ES,[ADDR2 + 2]
          ELSE
          IFIDN  <ADDR1>,<DSDI>
            MOV    DI,[ADDR2]
            MOV    DS,[ADDR2 + 2]
          ELSE
          IFIDN  <ADDR1>,<DSSI>
            MOV    SI,[ADDR2]
            MOV    DS,[ADDR2 + 2]
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
            ENDIF
          ENDM
.LIST