NEW AUTO 3,1 *--------------------------------------- * Global Symbol Record: (6+ bytes) * 0 : Len * 1 : Flags: * b7=0=pending,1=resolved * b6=R/W (.SE) * b2,b1,b0 : Size (in bytes) * 2-5 : 32 bits Value * 6+ : Local Symbols..... *--------------------------------------- * Local Symbol Record: (5 bytes) * 0 : Local ID (1->255) * 1-4 : 32 bits Value (PC) *--------------------------------------- SYM.Init >SYSCALL SListNew bcs .9 >STA.G SYM.hList >LDYAI 256 >SYSCALL getmem bcs .9 >STYA ZPSymbolBuf txa >STA.G SYM.hGlobalBuf .9 rts *--------------------------------------- SYM.Reset >STZ.G SYM.bInGlobal rts *--------------------------------------- SYM.Quit >LDA.G SYM.hGlobalBuf beq .3 >SYSCALL FreeMem .3 >LDA.G SYM.hList beq SYM.Quit.8 >PUSHA >SYSCALL SListFree SYM.Quit.8 clc rts *--------------------------------------- SYM.Dump.End >PUSHW L.MSG.SUMMARY >PUSHW ZPPtr2 >PUSHBI 2 jmp OUT.Print rts *--------------------------------------- SYM.Dump >LDA.G ASM.LI.ON bpl SYM.Quit.8 >LDYA L.MSG.SYMBOLS >SYSCALL puts stz ZPPtr2 stz ZPPtr2+1 .1 >LDYA ZPPtr2 >STYA ZPPtr1 >PUSHB.G SYM.hList >PUSHW ZPPtr1 >PUSHW ZPTmpBuf >SYSCALL SListGetByID bcs SYM.Dump.End >STYA ZPPtr2 Save Next ID >PUSHB.G SYM.hList >PUSHW ZPPtr1 KeyID >PUSHW ZPSymbolBuf >PUSHWI $ffff All >PUSHWZ from Start >SYSCALL SListGetData bcs .9 ldy #SYMG.SIZE Get Symbol Size lda (ZPSymbolBuf),y tax beq .3 phx asl tax >PUSHB L.MSG.EQU0+1,x >PUSHB L.MSG.EQU0,x plx phx .2 iny lda (ZPSymbolBuf),y >PUSHA dex bne .2 pla Byte Count .3 >PUSHA >SYSCALL printf >PUSHW ZPTmpBuf Label >PUSHBI 0 >SYSCALL printf lda (ZPSymbolBuf) bit #SYMG.F.LOCALS beq .7 jsr SYM.Dump.LP .7 jsr OUT.PrintCR jmp .1 .9 rts *--------------------------------------- SYM.Dump.LP ldy #SYMG .1 lda (ZPSymbolBuf),y beq .8 phy tax ID iny lda (ZPSymbolBuf),y MacID beq .2 >PUSHW L.MSG.LSYMBOL txa >PUSHA >PUSHB (ZPSymbolBuf),y bra .3 .2 >PUSHW L.MSG.LSYMBOL txa >PUSHA phx .3 ldx #4 .4 iny lda (ZPSymbolBuf),y >PUSHA dex bne .4 lda #5 plx beq .5 inc .5 >PUSHA >SYSCALL printf pla clc adc #SYML tay bra .1 .8 rts *--------------------------------------- SYM.NewOrGetGlobal >LDA.G ASM.PASS bne SYM.GetGlobal SYM.NewGlobal jsr SYM.StoreGlobal bcs .99 >PUSHB.G SYM.hList >PUSHW ZPLinePtr Pass #1: try to add global... >SYSCALL SListNewKey bcs .9 Already Defined >STYA.G SYM.GlobalID txa adc ZPLinePtr sta ZPLinePtr bcc .1 inc ZPLinePtr+1 .1 jsr SYM.PC2Acc jsr SYM.Acc2Global lda #SYMG >STA.G SYM.GlobalPtr tay lda #0 sta (ZPSymbolBuf),y lda #$ff >STA.G SYM.bInGlobal * >PUSHW.G SYM.GlobalID * >PUSHBI 2 * >LDYA L.MSG.WORD * >SYSCALL printf clc rts .9 lda #E.SYMBOL.REDEF sec .99 rts *--------------------------------------- SYM.GetGlobal >PUSHB.G SYM.hList >PUSHW ZPLinePtr Pass #2: should be already defined... >SYSCALL SListLookup bcs .9 >STYA.G SYM.GlobalID txa adc ZPLinePtr sta ZPLinePtr bcc .1 inc ZPLinePtr+1 .1 >PUSHB.G SYM.hList >PUSHW.G SYM.GlobalID >PUSHW ZPSymbolBuf >PUSHWI $ffff all >PUSHWZ from Start >SYSCALL SListGetData bcs .99 lda #$ff >STA.G SYM.bInGlobal * clc rts .9 lda #E.UNDEF.SYMBOL sec .99 rts *--------------------------------------- SYM.LookupGlobal >PUSHB.G SYM.hList >PUSHW ZPLinePtr >SYSCALL SListLookup bcs .9 >STYA ZPPtr1 txa adc ZPLinePtr sta ZPLinePtr bcc .1 inc ZPLinePtr+1 .1 >LDA.G SYM.GlobalID cmp ZPPtr1 bne .3 iny SYM.GlobalID+1 lda (pData),y cmp ZPPtr1+1 bne .3 ldy #SYMG-1 .2 lda (ZPSymbolBuf),y sta SRC.ACC.F,y dey bpl .2 clc rts .3 >PUSHB.G SYM.hList >PUSHW ZPPtr1 >PUSHW L.SRC.ACC.F >PUSHWI SYMG Get only Global value >PUSHWZ Start >SYSCALL SListGetData rts .9 lda #E.UNDEF.SYMBOL sec rts *--------------------------------------- SYM.StoreGlobal >LDA.G ASM.PASS bne .8 >LDA.G SYM.bInGlobal bpl .8 >PUSHB.G SYM.hList >PUSHW.G SYM.GlobalID >PUSHW ZPSymbolBuf >LDA.G SYM.GlobalPtr tay lda #0 cpy #SYMG beq .1 lda (ZPSymbolBuf) ora #SYMG.F.LOCALS sta (ZPSymbolBuf) lda #0 sta (ZPSymbolBuf),y iny bne .1 inc .1 >PUSHYA >SYSCALL SListAddData bcs .9 lda #0 >STA.G SYM.bInGlobal >STA.G MAC.CtxID .8 clc .9 rts *--------------------------------------- SYM.UpdateGlobal >PUSHB.G SYM.hList >PUSHW.G SYM.GlobalID >PUSHW L.SRC.ACC.F >PUSHWI SYMG >SYSCALL SListSetData rts *--------------------------------------- SYM.PC2Acc ldy #ASM.PC+3 ldx #3 .1 lda (pData),y sta SRC.ACC,x dey dex bpl .1 lda #2 sta SRC.ACC.SIZE stz SRC.ACC.F rts *--------------------------------------- SYM.Acc2Global ldy #SYMG-1 .2 lda SRC.ACC.F,y sta (ZPSymbolBuf),y dey bpl .2 rts *--------------------------------------- * Local/Private Symbol Record: (6 bytes) * 0 : Local ID (1->255) * 1 : Macro Context ID * 2-5 : 32 bits Value (PC) *--------------------------------------- SYM.NewPrivateA sec .HS 90 BCC SYM.NewLocalA clc ror ZPPtr1 tax Save Local ID >LDA.G SYM.bInGlobal not in a global label bpl .91 >LDA.G ASM.PASS Pass #2: should be already defined... bne .8 jsr SYM.GetLocalX Pass #1; try to add bcc .9 Already Defined >LDA.G SYM.GlobalPtr cmp #252 6*42 beq .90 ldy #ASM.PC+4 .1 dey lda (pData),y pha cpy #ASM.PC bne .1 lda #0 bit ZPPtr1 bpl .11 local, Ctx = 0 >LDA.G MAC.CtxID Get Macro Context ID .11 pha >LDA.G SYM.GlobalPtr tay txa Get Back ID sta (ZPSymbolBuf),y ldx #5 MAC ID + PC (4) .2 pla iny sta (ZPSymbolBuf),y dex bne .2 iny lda #0 sta (ZPSymbolBuf),y tya * >DEBUG >STA.G SYM.GlobalPtr lda (ZPSymbolBuf) ora #SYMG.F.LOCALS sta (ZPSymbolBuf) .8 clc rts .91 lda #E.INV.LABEL sec rts .90 lda #E.TOO.MANY.LOCAL sec rts .9 lda #E.SYMBOL.REDEF sec rts *--------------------------------------- SYM.GetLocalX lda (ZPSymbolBuf) and #SYMG.F.LOCALS beq .9 ldy #SYMG .1 lda (ZPSymbolBuf),y beq .9 txa cmp (ZPSymbolBuf),y bne .4 phy >LDA.G MAC.CtxID ply iny cmp (ZPSymbolBuf),y bne .3 ldx #0 .2 iny lda (ZPSymbolBuf),y sta SRC.ACC,x inx cpx #4 bne .2 lda #2 sta SRC.ACC.SIZE clc rts .3 dey .4 tya clc adc #SYML tay bra .1 .9 lda #E.UNDEF.SYMBOL sec rts *--------------------------------------- MAN SAVE USR/SRC/BIN/ASM.S.SYM LOAD USR/SRC/BIN/ASM.S ASM