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sim65: cycles does not increment 1 at a time, so some small overhead is needed in range check
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c03d00bc80
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@ -64,6 +64,12 @@ const char* ProgramFile;
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/* exit simulator after MaxCycles Cycles */
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unsigned long MaxCycles;
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/* maximum number of cycles that can be tested,
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** requires overhead for longest possible instruction,
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** which should be 7, using 16 for safety.
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*/
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#define MAXCYCLES_LIMIT (ULONG_MAX-16)
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/* Header signature 'sim65' */
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static const unsigned char HeaderSignature[] = {
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0x73, 0x69, 0x6D, 0x36, 0x35
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@ -73,7 +79,6 @@ static const unsigned char HeaderSignature[] = {
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static const unsigned char HeaderVersion = 2;
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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@ -142,8 +147,8 @@ static void OptQuitXIns (const char* Opt attribute ((unused)),
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{
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MaxCycles = strtoul(Arg, NULL, 0);
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/* Guard against overflow. */
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if (MaxCycles == ULONG_MAX && errno == ERANGE) {
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Error("'-x parameter out of range. Max: %lu",ULONG_MAX);
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if (MaxCycles >= MAXCYCLES_LIMIT) {
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Error("'-x parameter out of range. Max: %lu",MAXCYCLES_LIMIT);
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}
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}
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@ -23,7 +23,7 @@ ifdef QUIET
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endif
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# sim65 can support 64-bit cycle counts on some platforms, but not all. This must fit in 32-bit.
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SIM65FLAGS = -x 4294967295
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SIM65FLAGS = -x 4000000000
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CA65 := $(if $(wildcard ../../../bin/ca65*),..$S..$S..$Sbin$Sca65,ca65)
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LD65 := $(if $(wildcard ../../../bin/ld65*),..$S..$S..$Sbin$Sld65,ld65)
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@ -23,7 +23,7 @@ ifdef QUIET
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endif
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# sim65 can support 64-bit cycle counts on some platforms, but not all. This must fit in 32-bit.
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SIM65FLAGS = -x 4294967295 -c
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SIM65FLAGS = -x 4000000000 -c
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CC65 := $(if $(wildcard ../../bin/cc65*),..$S..$Sbin$Scc65,cc65)
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CA65 := $(if $(wildcard ../../bin/ca65*),..$S..$Sbin$Sca65,ca65)
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@ -25,7 +25,7 @@ ifdef QUIET
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endif
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# sim65 can support 64-bit cycle counts on some platforms, but not all. This must fit in 32-bit.
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SIM65FLAGS = -x 4294967295 -c
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SIM65FLAGS = -x 4000000000 -c
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CC65 := $(if $(wildcard ../../bin/cc65*),..$S..$Sbin$Scc65,cc65)
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CA65 := $(if $(wildcard ../../bin/ca65*),..$S..$Sbin$Sca65,ca65)
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