mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-08-18 04:49:20 +02:00
+ added currency and widestring support to TWriter and TReader
This commit is contained in:
florian
parent
d4576c1075
commit
cd81fa77ea
@ -34,23 +34,54 @@ procedure fpc_cpuinit;
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begin
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end;
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{ Don't call the following routines directly. }
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Procedure Hlt;[public,alias: 'FPC_HALT_ERROR'];
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{ called by code generator on run-time errors. }
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{ on entry contains d0 = error code. }
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var
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b:byte; { only byte is used... }
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{$define FPC_SYSTEM_HAS_GET_FRAME}
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function get_frame : pointer; assembler;
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asm
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move.l a6,d0
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end;
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{$define FPC_SYSTEM_HAS_GET_CALLER_ADDR}
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function get_caller_addr(framebp : pointer) : pointer;
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begin
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asm
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move.b d0,b
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end;
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HandleError(b);
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move.l FRAMEBP,a0
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cmp.l #0,a0
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beq @Lnul_address
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move.l 4(a0),a0
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@Lnul_address:
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move.l a0,@RESULT
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end ['a0'];
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end;
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{$define FPC_SYSTEM_HAS_GET_CALLER_FRAME}
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function get_caller_frame(framebp : pointer) : pointer;
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begin
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asm
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move.l FRAMEBP,a0
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cmp.l #0,a0
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beq @Lnul_frame
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move.l (a0),a0
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@Lnul_frame:
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move.l a0,@RESULT
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end ['a0'];
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end;
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Procedure FillChar(var x;count:longint;value:byte);[public,alias: 'FPC_FILL_OBJECT'];
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{$define FPC_SYSTEM_HAS_SPTR}
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function Sptr : Longint;
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begin
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asm
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move.l sp,d0
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add.l #8,d0
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move.l d0,@RESULT
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end ['d0'];
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end;
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{$define FPC_SYSTEM_HAS_FILLCHAR}
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procedure FillChar(var x;count:longint;value:byte);[public,alias: 'FPC_FILL_OBJECT'];
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begin
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asm
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move.l 8(a6), a0 { destination }
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@ -76,268 +107,8 @@ end;
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end ['d0','d1','a0'];
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end;
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Procedure FillObject(var x; count: longint; value: byte);
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begin
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asm
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move.l 8(a6), a0 { destination }
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move.l 12(a6), d1 { number of bytes to fill }
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move.w 16(a6),d0 { fill data }
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cmp.l #65535, d1 { check, if this is a word move }
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ble @LMEMSET3 { use fast dbra mode }
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bra @LMEMSET2
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@LMEMSET1:
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move.b d0,(a0)+
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@LMEMSET2:
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subq.l #1,d1
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cmp.l #-1,d1
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bne @LMEMSET1
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bra @LMEMSET5 { finished slow mode , exit }
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@LMEMSET4: { fast loop mode section 68010+ }
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move.b d0,(a0)+
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@LMEMSET3:
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dbra d1,@LMEMSET4
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@LMEMSET5:
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end ['d0','d1','a0'];
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end;
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procedure int_help_constructor;[public,alias:'FPC_HELP_CONSTRUCTOR'];
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begin
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asm
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{ Entry without preamble, since we need the ESP of the
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constructor }
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{ Stack (relative to %ebp):
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12 Self
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8 VMT-Address
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4 main programm-Addr
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0 %ebp
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}
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{ do we have to initialize self }
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{ we just need to check for zero }
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move.l a5,d0
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tst.l d0 { set flags }
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bne @LHC_4
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{ get memory, but save register first }
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{ temporary variable }
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subq.l #4,sp
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move.l sp,a5
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{ Save Registers }
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movem.l d0-a7,-(sp)
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{ Memory size }
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move.l 8(a6),a0
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move.l (a0),-(sp)
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{ push method pointer }
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move.l a5,-(sp)
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jsr FPC_GETMEM
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{ Restore all registers in the correct order }
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movem.l (sp)+,d0-a7
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{ Memory position to a5 }
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move.l (a5),a5
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addq.l #4,sp
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{ If no memory available : fail() }
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move.l a5,d0
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tst.l d0 { set flags for a5 }
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beq @LHC_5
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{ init self for the constructor }
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move.l a5,12(a6)
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@LHC_4:
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{ is there a VMT address ? }
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move.l 8(a6),d0
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or.l d0,d0
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bne @LHC_7
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{ In case the constructor doesn't do anything, the Zero-Flag }
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{ can't be put, because this calls Fail() }
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add.l #1,d0
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rts
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@LHC_7:
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{ set zero inside the object }
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{ Save Registers }
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movem.l d0-a7,-(sp)
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move.w #0,-(sp)
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move.l 8(a6),a0
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move.l (a0),-(sp)
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move.l a5,-(sp)
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{ }
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jsr FPC_FILLOBJECT
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{ Restore all registers in the correct order }
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movem.l (sp)+,d0-a7
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{ set the VMT address for the new created object }
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{$ifdef OBJECTVMTOFFSET}
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{ the offset is in %edi since the calling and has not been changed !! }
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move.l 8(a6),d1
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move.l d1,(a5,d0.l)
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{$else OBJECTVMTOFFSET}
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move.l 8(a6),d0
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move.l d0,(a5)
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{$endif OBJECTVMTOFFSET}
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or.l d0,d0
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@LHC_5:
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rts
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end;
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end;
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procedure help_fail;
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begin
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asm
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end;
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end;
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procedure int_help_destructor;[public,alias:'FPC_HELP_DESTRUCTOR'];
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begin
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asm
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{ Stack (relative to %ebp):
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12 Self
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8 VMT-Address
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4 Main program-Addr
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0 %ebp
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d0 contains vmt_offset
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}
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{ temporary Variable }
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subq.l #4,sp
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move.l sp,d6
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{ Save Registers }
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movem.l d0-a7,-(sp)
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move.l 8(a6),d1 { Get the address of the vmt }
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or.l d1,d1 { Check if there is a vmt }
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beq @LHD_3
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{ Yes, get size from SELF! }
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move.l 12(a6),a0
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{ get VMT-pointer (from Self) to %ebx }
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{$ifdef OBJECTVMTOFFSET}
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{ the offset is in d0 since the calling and has not been changed !! }
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move.l (a0,d0.l),a1
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{$else OBJECTVMTOFFSET}
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move.l (a0),a1
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{$endif OBJECTVMTOFFSET}
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{ And put size on the Stack }
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move.l (a1),-(sp)
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{ SELF }
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{ I think for precaution }
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{ that we should clear the VMT here }
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clr.l (a0)
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{ get address of local variable into }
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{ address register }
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move.l d6,a1
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move.l a0,(a1)
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move.l a1,-(sp)
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jsr FPC_FREEMEM
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@LHD_3:
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{ Restore all registers in the correct order }
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movem.l (sp)+,d0-a7
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add.l #4,sp
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rts
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end;
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end;
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procedure new_class;assembler;[public,alias:'FPC_NEW_CLASS'];
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asm
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{ create class ? }
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move.l 8(a6), d0
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tst.l d0
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{ check for nil... }
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beq @NEW_CLASS1
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{ a5 contains vmt }
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move.l a5,-(sp)
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{ call newinstance (class method!) }
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jsr 16(a5)
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{ new instance returns a pointer to the new created }
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{ instance in d0 }
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{ load a5 and insert self }
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move.l d0,8(a6)
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move.l d0,a5
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bra @end
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@NEW_CLASS1:
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move.l a5,8(a6)
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@end:
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end;
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procedure dispose_class;assembler;[public,alias:'FPC_DISPOSE_CLASS'];
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asm
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{ destroy class ? }
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move.l 8(a6),d0
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{ save self }
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move.l a5,8(a6)
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tst.l d0
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beq @DISPOSE_CLASS
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{ no inherited call }
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move.l (a5),d0
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{ push self }
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move.l a5,-(sp)
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{ call freeinstance }
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move.l d0,a0
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jsr 20(a0)
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@DISPOSE_CLASS:
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{ load self }
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move.l 8(a6),a5
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end;
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{ checks for a correct vmt pointer }
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procedure int_check_object;assembler;[public,alias:'FPC_CHECK_OBJECT'];
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{ ON ENTRY: a0 -> Pointer to the VMT }
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{ Nota: All registers must be preserved including }
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{ A0 itself! }
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asm
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move.l d0,-(sp)
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tst.l a0
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{ z flag set if zero }
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beq @co_re
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move.l (a0),d0
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add.l 4(a0),d0
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bne @co_re
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bra @end
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@co_re:
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move.l (sp)+,d0
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move.b #210,d0
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jsr FPC_HALT_ERROR
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@end:
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move.l (sp)+,d0
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end;
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function get_frame : longint; assembler;
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asm
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move.l a6,d0
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end;
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function get_caller_addr(framebp:longint):longint;
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begin
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asm
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move.l FRAMEBP,a0
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cmp.l #0,a0
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beq @Lnul_address
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move.l 4(a0),a0
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@Lnul_address:
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move.l a0,@RESULT
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end ['a0'];
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end;
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function get_caller_frame(framebp:longint):longint;
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begin
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asm
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move.l FRAMEBP,a0
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cmp.l #0,a0
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beq @Lnul_frame
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move.l (a0),a0
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@Lnul_frame:
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move.l a0,@RESULT
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end ['a0'];
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end;
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{$ifdef dummy}
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{ procedure strcopy(dstr,sstr : pointer;len : longint);[public,alias: 'STRCOPY'];}
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procedure strcopy; assembler;[public,alias: 'FPC_STRCOPY'];
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{---------------------------------------------------}
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@ -377,11 +148,11 @@ end;
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@Lend:
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end;
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{ Concatenate Strings }
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{ PARAMETERS ARE REVERSED COMPARED TO NORMAL! }
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{ therefore online assembler may not parse the params as normal }
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procedure strconcat(s1,s2 : pointer);[public,alias: 'STRCONCAT'];
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begin
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asm
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move.b #255,d0
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@ -458,37 +229,10 @@ end;
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cmp.b d1,d0 { Compare length - set flag if equal length strings }
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@LSTRCONCAT3:
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end;
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{$endif dummy}
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Function strpas(p: pchar): string;
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{ only 255 first characters are actually copied. }
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var
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counter : byte;
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str: string;
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Begin
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counter := 0;
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str := '';
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while (ord(p[counter]) <> 0) and (counter < 255) do
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begin
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counter:=counter+1;
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str[counter] := char(p[counter-1]);
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end;
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str[0] := char(counter);
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strpas := str;
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end;
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function strlen(p : pchar) : longint;
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var
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counter : longint;
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Begin
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counter := 0;
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repeat
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counter:=counter+1;
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until ord(p[counter]) = 0;
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strlen := counter;
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end;
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{$define FPC_SYSTEM_HAS_MOVE}
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procedure move(var source;var dest;count : longint);
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{ base pointer+8 = source }
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{ base pointer+12 = destination }
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@ -545,8 +289,8 @@ end;
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end;
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{$define FPC_SYSTEM_HAS_FILLWORD}
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procedure fillword(var x;count : longint;value : word);
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begin
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asm
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move.l 8(a6), a0 { destination }
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@ -563,8 +307,8 @@ end;
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end;
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{$define FPC_SYSTEM_HAS_ABS_LONGINT}
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function abs(l : longint) : longint;
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begin
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asm
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move.l 8(a6),d0
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@ -576,123 +320,13 @@ end;
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end ['d0'];
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end;
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function odd(l : longint) : boolean;
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begin
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if (l and $01) = $01 then
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odd := TRUE
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else
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odd := FALSE;
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end;
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function sqr(l : longint) : longint;
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begin
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sqr := l*l;
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end;
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procedure int_str(l : longint;var s : string);
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var
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value: longint;
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negative: boolean;
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begin
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negative := false;
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s:='';
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{ Workaround: }
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if l=$80000000 then
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begin
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s:='-2147483648';
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exit;
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end;
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{ handle case where l = 0 }
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if l = 0 then
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begin
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s:='0';
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exit;
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end;
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If l < 0 then
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begin
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negative := true;
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value:=abs(l);
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end
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else
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value:=l;
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{ handle non-zero case }
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while value>0 do
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begin
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s:=char((value mod 10)+ord('0'))+s;
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value := value div 10;
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end;
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if negative then
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s := '-' + s;
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end;
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Function Sptr : Longint;
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begin
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asm
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move.l sp,d0
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add.l #8,d0
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move.l d0,@RESULT
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end ['d0'];
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end;
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Procedure BoundsCheck;assembler;[public,alias:'FPC_RE_BOUNDS_CHECK'];
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{ called by code generator with R+ state to }
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{ determine if a range check occured. }
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{ Only in 68000 mode, in 68020 mode this is }
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{ inline. }
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{ On Entry: }
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{ A1 = address contaning min and max indexes }
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{ D0 = value of current index to check. }
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asm
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cmp.l (A1),D0 { lower bound ... }
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bmi @rebounderr { is index lower ... }
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add.l #4,A1
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cmp.l (A1),D0
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bmi @reboundend
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beq @reboundend
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@rebounderr:
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move.l #201,d0
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jsr FPC_HALT_ERROR
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@reboundend:
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end;
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{****************************************************************************
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IoCheck
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****************************************************************************}
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procedure int_iocheck(addr : longint);[public,alias: {$ifdef FPCNAMES}'FPC_'+{$endif}'IOCHECK'];
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var
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l : longint;
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begin
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asm
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movem.l d0-a7,-(sp)
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end;
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if InOutRes<>0 then
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begin
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l:=InOutRes;
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InOutRes:=0;
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If ErrorProc<>Nil then
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TErrorProc(Errorproc)(l,pointer(addr));
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{$ifndef RTLLITE}
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writeln('IO-Error ',l,' at 0x',HexStr(addr,8));
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{$endif}
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Halt(byte(l));
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end;
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asm
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movem.l (sp)+,d0-a7
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end;
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end;
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{
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$Log$
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Revision 1.4 2004-01-02 17:22:14 jonas
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Revision 1.5 2004-05-23 12:42:42 florian
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+ added currency and widestring support to TWriter and TReader
|
||||
|
||||
Revision 1.4 2004/01/02 17:22:14 jonas
|
||||
+ fpc_cpuinit procedure to allow cpu/fpu initialisation before any unit
|
||||
initialises
|
||||
+ fpu exceptions for invalid operations and division by zero enabled for
|
||||
@ -700,5 +334,4 @@ end;
|
||||
|
||||
Revision 1.3 2002/09/07 16:01:20 peter
|
||||
* old logs removed and tabs fixed
|
||||
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user