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https://github.com/A2osX/A2osX.git
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104 lines
2.1 KiB
Plaintext
104 lines
2.1 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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*---------------------------------------
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* Global Symbol Record: (7 bytes)
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* 0 : SYM.Block.ID
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* 1 : Index in SYM.Block
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* 2 : Flags:
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* b7=R/W (.SE)
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* b6=Forward ref
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* 3-6 : Value
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*---------------------------------------
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* Local Symbol Record: (4 bytes)
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* 0,1 : Pointer to Global Symbol in main table
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* 2 : 2 digits name (.99)
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* 3 : offset from Global Symbol
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*---------------------------------------
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* Private Symbol Record: (7 bytes)
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* 0,1 : MacroID
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* 2 : 2 digits name (:99)
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* 3-6 : Value
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*---------------------------------------
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SYM.Init >PUSHWI SYM.MAXCOUNT*8
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>PUSHBI S.MEM.F.INIT0
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>SYSCALL SYS.GetMem
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bcs .9
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ldy #SYM.hMem
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txa
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sta (pData),y
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clc
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.9 rts
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*---------------------------------------
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SYM.Quit ldy #SYM.hMem
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lda (pData),y
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beq .8
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>SYSCALL SYS.FreeMemA
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.8 clc
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rts
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*---------------------------------------
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SYM.Add
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clc
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rts
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*---------------------------------------
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SYM.AddGlobal
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clc
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rts
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*---------------------------------------
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SYM.LookupGlobal
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clc
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rts
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*---------------------------------------
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SYM.ClearPrivate
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clc
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rts
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*---------------------------------------
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SYM.ClearLocal
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clc
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rts
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*---------------------------------------
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SYM.AddLocal
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clc
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rts
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*---------------------------------------
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SYM.LookupLocal
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clc
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rts
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*---------------------------------------
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SYM.AddPrivate
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clc
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rts
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*---------------------------------------
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SYM.LookupPrivate
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clc
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rts
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*---------------------------------------
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SYM.AddBlock ldx #0
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.1 lda SYM.BLOCKS,x
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beq .2
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inx
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cpx #SYM.BLOCK.MAX
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bne .1
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lda #ERR.SYM.TOO.LONG
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sec Out of block error
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rts
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.2 phx Save next free block
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>LDYA SYM.BLOCK.SIZE
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>SYSCALL SYS.GetMem
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bcs .9
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txa
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plx
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sta SYM.BLOCKS,x
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clc
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.9 rts
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*---------------------------------------
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MAN
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SAVE BIN/ASM.S.SYM
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LOAD BIN/ASM.S
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ASM
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