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improved error handling of "--cpu" and "--format" switches. started putting m65 in docs.
git-svn-id: https://svn.code.sf.net/p/acme-crossass/code-0/trunk@222 4df02467-bbd4-4a76-a152-e7ce94205b78
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marcobaye
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@ -13,8 +13,8 @@ ACME supports the following cpu types:
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*** 6502
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This is the instruction set of the original NMOS 6502 designed by MOS
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(later CSG).
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This is the official instruction set of the original NMOS 6502 CPU
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designed by MOS (later CSG).
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There are 151 documented opcodes.
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ACME does not use "A" to indicate "accumulator addressing"; just write
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the mnemonic without any argument: "LSR" will work, "LSR A" won't.
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@ -65,10 +65,10 @@ There are 178 documented opcodes.
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This is a superset of 65c02, probably originally by Rockwell. It adds
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bit manipulation instructions:
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BBR0 $12, near_target branch on bit reset in zp
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BBS0 $12, near_target branch on bit set in zp
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RMB0 $12 reset memory bit in zp
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SMB0 $12 set memory bit in zp
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BBR4 $12, near_target branch on bit reset in zp
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BBS5 $12, near_target branch on bit set in zp
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RMB6 $12 reset memory bit in zp
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SMB7 $12 set memory bit in zp
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The digit in the mnemonic is the bit number, therefore it must be in
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the 0..7 range.
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Chips with this instruction set seem to have been available from
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@ -131,6 +131,34 @@ There are 256 documented opcodes.
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*** m65
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This is a superset of 4502 specified by the MEGA65 project. It uses
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NOP and NEG:NEG as prefix bytes to extend the instruction set.
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Features:
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- new "long indirect z-indexed" addressing mode with four-byte-pointer
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for existing instructions:
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LDA/STA/ADC/SBC [$12], z ; contents of $12/$13/$14/$15
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AND/ORA/EOR/CMP [$12], z ; plus z form the address
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- 32-bit data operations indicated via 'Q' ("quad"):
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LDQ/STQ/CPQ like LDA/STA/CMP
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ADCQ/SBCQ like ADC/SBC
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ANDQ/EORQ/ORQ like AND/EOR/ORA
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ASLQ/LSRQ/ROLQ/RORQ like ASL/LSR/ROL/ROR
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INQ/DEQ like INC/DEC
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The new mnemonics support all the addressing modes of the original
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mnemonics, except there are no 32-bit immediate arguments.
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CAUTION: The STQ mnemonic clobbers the N and Z flags!
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There is no "real" Q register, instead A/X/Y/Z are combined to form
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the Q register (A holds lsb, Z holds msb), except for read-modify-
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write instructions, where the 32-bit operation is performed without
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using A/X/Y/Z.
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- The NOP mnemonic is disabled for this instruction set because its
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opcode is re-used internally as a prefix byte.
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CAUTION: The !align pseudo opcode still inserts NOPs.
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*** c64dtv2
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This is the cpu in version 2 of the C64DTV. It uses a superset of the
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@ -150,7 +178,7 @@ Here's a family tree:
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|\_6510 (+ undocumented opcodes of nmos6502)
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|\_c64dtv2 (+ bra/sac/sir and some illegals)
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|\_c64dtv2 (+ bra/sac/sir and some undocumented)
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\_65c02 (+ bra/phx/phy/plx/ply/stz/trb/tsb, ...)
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@ -163,3 +191,5 @@ Here's a family tree:
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\_65ce02 (+ Z reg, long branches, ...)
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\_4502 (+ map/eom)
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\_m65 (+ 32-bit pointers, 32-bit data)
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47
src/acme.c
47
src/acme.c
@ -336,30 +336,43 @@ static void keyword_to_dynabuf(const char keyword[])
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}
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// check output format (the output format tree must be set up at this point!)
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static void set_output_format(void)
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// set output format (the output format tree must be set up at this point!)
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static void set_output_format(const char format_name[])
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{
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keyword_to_dynabuf(cliargs_safe_get_next("output format"));
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if (outputfile_set_format()) {
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fprintf(stderr, "%sUnknown output format (known formats are: %s).\n", cliargs_error, outputfile_formats);
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exit(EXIT_FAILURE);
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// caution, name may be NULL!
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if (format_name) {
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keyword_to_dynabuf(format_name);
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if (!outputfile_set_format())
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return; // ok
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fputs("Error: Unknown output format.\n", stderr);
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} else {
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fputs("Error: No output format specified.\n", stderr);
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}
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fprintf(stderr, "Supported formats are:\n\n\t%s\n\n", outputfile_formats);
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exit(EXIT_FAILURE);
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}
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// check CPU type (the cpu type tree must be set up at this point!)
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static void set_starting_cpu(const char expression[])
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// set CPU type (the cpu type tree must be set up at this point!)
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static void set_starting_cpu(const char cpu_name[])
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{
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const struct cpu_type *new_cpu_type;
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keyword_to_dynabuf(expression);
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new_cpu_type = cputype_find();
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if (new_cpu_type) {
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default_cpu = new_cpu_type;
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// caution, name may be NULL!
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if (cpu_name) {
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keyword_to_dynabuf(cpu_name);
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new_cpu_type = cputype_find();
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if (new_cpu_type) {
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default_cpu = new_cpu_type;
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return; // ok
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}
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fputs("Error: Unknown CPU type.\n", stderr);
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} else {
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fprintf(stderr, "%sUnknown CPU type (known types are: %s).\n", cliargs_error, cputype_names);
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exit(EXIT_FAILURE);
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fputs("Error: No CPU type specified.\n", stderr);
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}
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fprintf(stderr, "Supported types are:\n\n\t%s\n\n", cputype_names);
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exit(EXIT_FAILURE);
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}
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@ -498,7 +511,7 @@ static const char *long_option(const char *string)
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if (strcmp(string, OPTION_HELP) == 0)
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show_help_and_exit();
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else if (strcmp(string, OPTION_FORMAT) == 0)
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set_output_format();
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set_output_format(cliargs_get_next()); // NULL is ok (handled like unknown)
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else if (strcmp(string, OPTION_OUTFILE) == 0)
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output_filename = cliargs_safe_get_next(name_outfile);
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else if (strcmp(string, OPTION_LABELDUMP) == 0) // old
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@ -512,7 +525,7 @@ static const char *long_option(const char *string)
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else if (strcmp(string, OPTION_SETPC) == 0)
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set_starting_pc(cliargs_safe_get_next("program counter"));
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else if (strcmp(string, OPTION_CPU) == 0)
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set_starting_cpu(cliargs_safe_get_next("CPU type"));
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set_starting_cpu(cliargs_get_next()); // NULL is ok (handled like unknown)
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else if (strcmp(string, OPTION_INITMEM) == 0)
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set_mem_contents(cliargs_safe_get_next("initmem value"));
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else if (strcmp(string, OPTION_MAXERRORS) == 0)
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@ -557,7 +570,7 @@ static char short_option(const char *argument)
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define_symbol(argument + 1);
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goto done;
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case 'f': // "-f" selects output format
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set_output_format();
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set_output_format(cliargs_get_next()); // NULL is ok (handled like unknown)
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break;
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case 'h': // "-h" shows help
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show_help_and_exit();
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@ -9,7 +9,7 @@
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#define RELEASE "0.96.5" // update before release FIXME
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#define CODENAME "Fenchurch" // update before release
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#define CHANGE_DATE "8 June" // update before release FIXME
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#define CHANGE_DATE "9 June" // update before release FIXME
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#define CHANGE_YEAR "2020" // update before release
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//#define HOME_PAGE "http://home.pages.de/~mac_bacon/smorbrod/acme/"
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#define HOME_PAGE "http://sourceforge.net/p/acme-crossass/" // FIXME
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