X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=ChangeLog;h=3636cc4b601cab111e4c5b8de75be4e7f83ba04b;hb=7a742aa53d932c986e05ab285410366d414e23a4;hp=9c015e3584891ced62cda1f9144d5546b475181e;hpb=43082e9855dafdd47d0dc6649c63e47ad7a842c0;p=fw%2Fsdcc diff --git a/ChangeLog b/ChangeLog index 9c015e35..3636cc4b 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,93 @@ +2004-01-06 Vangelis Rokas + + PIC16 port related changes: + * device.c: removed pic16_finalMapping and pic16_finalMappingSize, + added variable stackPos, + + * gen.c: genCall, assignResultValue: added support for + pushing/retrieving function parameters to/from stack, + genFunction,genEndFunction: setup stack frame for the + generated function, + genAddrOf: will be changed according to bug 863624 + + * added files genutils.c and genutils.h which contain gen* + debugged and optimised functions extracted from gen.c + + * glue.c: added variable 'externs' which holds extern symbols, + pic16emitRegularMap: is modified to properly handle relocatable + symbols under the new scheme, + pic16createInterruptVect: is modified + pic16printPublics: is modified to emit 'global' assembler directives, + added pic16_printExterns to print extern symbols, + pic16glue: initializes stack/frame pointer in the beginning of + the assembly output. Temporary hack, will be corrected later, + because gplink yet does not support stack and SDCC does not + yet support a type of crt0.o object to create the final binary. + + * Removed many lines that contain 8051 legacy code. + * The code is finally placed under a 'code' directive. + * Added port specific options. + + * _process_pragma: simplified since now we do not need *special* + include file to define SFR registers. But a separate header + will be needed. This will be developed later. + * _pic16_parseOptions: added, parses port specific options: + --pgen-banksel, --obanksel=, --pomit-config-words, --pomit-ivt, + --pleave-reset-vector, --penable-stack, --pstack-model, --debug-xtra + --preplace-udata-with= + + * _pic16_setDefaultOptions: modified to initialize section names, + but hack is temporarly out of order since it needs improvement. + * _pic16_genAssemblerPreamble: configuration words are emitted by + their address instead of their name. This part is incomplete and + supports only the 18Fxx2 devices. Other devices will emit an error + during assembly since they do not contain the same set of config + registers + * _pic16_genIVT: is modified, + + * pcode.c: added definitions for some hardware registers that are needed + for stack support + * added flag is2LitOp and variable pci_magic in pCodeInstruction. + All PCI entries are updated. Now LFSR is supported. + * Removed pic16_pciTRIS is mentioned by mdubuc in source + * added pic16_newpCodeOpLit2 to support instructions with + two literal arguments + * pic16_pCode2str: corrected code that emits assembler instructions + with two literal operands and those that have an access bit modifier + * genericPrint: now PC_ASMDIR pCodes, can emit a label if it exists, + this fixes a bug which caused some labels to be lost, when an + assembler directive was added, i.e. banksel, + * pic16_FixRegisterBanking: improved logic that causes the insertion + of bank switching, + * InlineFunction: functions that are called once, are not any more + inlined. This can be a port option in the future, + + * pcode.h: added pCodeOpLit2 and added variable label in pCodeAsmDir + + * ralloc.c: added pic16_rel_udata and pic16_fix_udata variables which + hold the corresponding uninitialized symbols, + * pic16_allocProcessorRegister: registers have explicit marked the + accessBank field, + * pic16_allocInternalRegister: registers are explicit marked as + not used, + * pic16_writeUsedRegs: pic16_dynDirectBitRegs was missing from the + processing list, so bit registers were lost, + * + + * ralloc.h: added field 'accessBank' and original symbol operand + in register definition, + * removed the field isMapped from register definition, + + ** Several functions have been removed from various sources: + BanksUsedFlow2,BanksUsedFlow,FixBankFlow,InstructionRegBank, + pic16_addMemRange,pic16_isREGinBank,pic16_dump_map,pic16_dump_cblock + isSFR,validAddress,mapRegister,assignRegister,pic16_assignFixedRegisters + pic16_assignRelocatableRegisters + + ** others have been introduced: + pic16_areRegsSame,pic16_dump_section,checkAddReg,pic16_groupRegistersInSection + pic16_popGetLit2,pic16_popCombine2,pushw,pushaop + 2004-01-05 Vangelis Rokas * support/scripts/inc2h.pl: changed definition of BIT_AT