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-
- * ReadChar.asm (of PCQ Pascal runtime library)
- * Copyright (c) 1989 Patrick Quaid
-
- * This reads one character from a text file.
-
- INCLUDE ":runtime/FileRec.i"
-
- SECTION ONE
-
- XREF _p%ReadOneChar
- XREF _p%GetThatChar
- XREF _p%IOResult
-
- * Upon entry we expect a0 to hold the variable address, and
- * the top of the stack should be the file record address.
-
- XDEF _p%ReadChar
- _p%ReadChar
- tst.l _p%IOResult ; is IO OK?
- bne.s 1$
- move.l a0,-(sp) ; save the variable address
- move.l 8(sp),a0 ; get the file record address
- jsr _p%ReadOneChar ; read a character
- jsr _p%GetThatChar ; eat it
- move.l (sp)+,a0 ; restore var address
- move.b d0,(a0) ; save the character
- 1$ rts
-
- END
-