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jmpbuf <-> callax moved to all architectures
git-svn-id: svn://svn.cc65.org/cc65/trunk@1853 b7a2c559-68d2-44c3-8de9-860c34a00d81
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izydorst
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a72745267b
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@ -11,7 +11,7 @@
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@$(AS) -o $@ $(AFLAGS) $<
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C_OBJS = _afailed.o abort.o perror.o
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S_OBJS = _sys.o atexit.o copydata.o memcpy.o memset.o zerobss.o
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S_OBJS = copydata.o memcpy.o memset.o zerobss.o
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all: $(C_OBJS) $(S_OBJS)
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@ -1,79 +0,0 @@
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;
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; void __fastcall__ _sys (struct regs* r);
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;
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; Ullrich von Bassewitz, 16.12.1998
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;
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;
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; The function could also export jmpvec as general purpose jump vector that
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; lies in the data segment so it's address may be patched at runtime.
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;
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.export __sys
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.importzp ptr1
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__sys: sta ptr1
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stx ptr1+1 ; Save the pointer to r
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; Fetch the PC and store it into the jump vector
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ldy #5
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lda (ptr1),y
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sta jmpvec+2
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dey
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lda (ptr1),y
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sta jmpvec+1
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; Get the flags, mask unnecessary bits and push them. Push a
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dey
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lda (ptr1),y
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and #%11001011
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pha
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ldy #0
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lda (ptr1),y
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pha
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; Get and assign X and Y
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iny
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lda (ptr1),y
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tay
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iny
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lda (ptr1),y
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tay
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; Set a and the flags, call the machine code routine
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pla
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plp
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jsr jmpvec
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; Back from the routine. Save the flags and a
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php
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pha
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; Put the register values into the regs structure
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tya
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ldy #2
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sta (ptr1),y
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dey
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txa
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sta (ptr1),y
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dey
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pla
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sta (ptr1),y
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ldy #3
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pla
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sta (ptr1),y
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; Done
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rts
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.data
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jmpvec: jmp $FFFF
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@ -1,81 +0,0 @@
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;
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; Ullrich von Bassewitz, 06.06.1998
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;
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; int atexit (void (*f) (void));
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;
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.export _atexit
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.destructor doatexit, 5
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.import __errno
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.import callax
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.include "errno.inc"
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; ---------------------------------------------------------------------------
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.proc _atexit
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ldy exitfunc_index
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cpy #exitfunc_max ; Slot available?
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beq @Error ; Jump if no
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; Enter the function into the table
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sta exitfunc_table,y
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iny
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txa
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sta exitfunc_table,y
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iny
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sty exitfunc_index
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; Done, return zero
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lda #0
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tax
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rts
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; Error, no space left
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@Error: lda #ENOSPC ; No space left
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sta __errno
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ldx #$00
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stx __errno+1
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dex ; Make return value -1
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txa
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rts
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.endproc
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; ---------------------------------------------------------------------------
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.code
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.proc doatexit
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ldy exitfunc_index ; Get index
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beq @L9 ; Jump if done
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dey
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lda exitfunc_table,y
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tax
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dey
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lda exitfunc_table,y
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sty exitfunc_index
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jsr callax ; Call the function (A/X)
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jmp doatexit ; Next one
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@L9: rts
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.endproc
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; ---------------------------------------------------------------------------
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.bss
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exitfunc_index: .res 1 ; Index into table, inc'ed by 2
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exitfunc_table: .res 10 ; 5 exit functions
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exitfunc_max = <(* - exitfunc_table)
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@ -11,7 +11,7 @@
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@$(AS) -o $@ $(AFLAGS) $<
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C_OBJS =
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S_OBJS = call.o condes.o
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S_OBJS = call.o
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all: $(C_OBJS) $(S_OBJS)
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@ -1,92 +0,0 @@
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;
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; Ullrich von Bassewitz, 20.11.2000
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;
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; CC65 runtime: Support for calling module constructors/destructors
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;
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; The condes routine must be called with the table address in a/x and the
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; size of the table in y. The current implementation limits the table size
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; to 254 bytes (127 vectors) but this shouldn't be problem for now and may
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; be changed later.
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;
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; libinit and libdone call condes with the predefined module constructor and
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; destructor tables, they must be called from the platform specific startup
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; code.
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.export initlib, donelib, condes
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.import __CONSTRUCTOR_TABLE__, __CONSTRUCTOR_COUNT__
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.import __DESTRUCTOR_TABLE__, __DESTRUCTOR_COUNT__
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.import callax
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.code
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; --------------------------------------------------------------------------
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; Initialize library modules
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.proc initlib
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lda #<__CONSTRUCTOR_TABLE__
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ldx #>__CONSTRUCTOR_TABLE__
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ldy #<(__CONSTRUCTOR_COUNT__*2)
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bne condes
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rts
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.endproc
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; --------------------------------------------------------------------------
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; Cleanup library modules
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.proc donelib
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lda #<__DESTRUCTOR_TABLE__
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ldx #>__DESTRUCTOR_TABLE__
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ldy #<(__DESTRUCTOR_COUNT__*2)
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bne condes
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rts
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.endproc
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; --------------------------------------------------------------------------
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; Generic table call handler
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.proc condes
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sta getbyt+1
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stx getbyt+2
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sty index
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loop: ldy index
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beq done
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dey
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jsr getbyt
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tax
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dey
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jsr getbyt
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sty index
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jsr callax ; call function in A/X
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.ifpc02
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bra loop
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.else
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jmp loop
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.endif
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done: rts
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.endproc
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; --------------------------------------------------------------------------
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; Data. The getbyte routine is placed in the data segment cause it's patched
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; at runtime.
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.bss
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index: .byte 0
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.data
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getbyt: lda $FFFF,y ; may not change X!
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rts
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