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#include "asar.h" |
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#include "assembleblock.h" |
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#include "asar_math.h" |
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5 |
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#define write1 write1_pick |
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2106 |
void asinit_65816() |
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{ |
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2106 |
} |
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1968 |
void asend_65816() |
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{ |
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1968 |
} |
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15 |
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// like an address mode, but without a specific width |
16 |
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enum class addr_kind { |
17 |
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abs, // $00 |
18 |
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x, // $00,x |
19 |
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y, // $00,y |
20 |
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ind, // ($00) |
21 |
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lind, // [$00] |
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xind, // ($00,x) |
23 |
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indy, // ($00),y |
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lindy, // [$00],y |
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s, // $00,s |
26 |
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sy, // ($00,s),y |
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imp, // implied (no argument) |
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a, // 'A' as argument |
29 |
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imm, // #$00 |
30 |
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}; |
31 |
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32 |
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5787 |
struct insn_context { |
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string arg; |
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char orig_insn[3]; // oops i didn't end up using this... could be useful in some error messages maybe |
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char modifier; |
36 |
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}; |
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38 |
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// checks for matching characters at the start of haystack, ignoring spaces. |
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// returns index into haystack right after the match |
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template<char... chars> |
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58074 |
int64_t startmatch(const string& haystack) { |
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static const char needle[] = {chars...}; |
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29058 |
size_t haystack_i = 0; |
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for(size_t i = 0; i < sizeof...(chars); i++) { |
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while(haystack[haystack_i] == ' ') haystack_i++; |
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if(needle[i] != to_lower(haystack[haystack_i++])) return -1; |
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} |
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4830 |
return haystack_i; |
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} |
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// checks for matching characters at the end of haystack, ignoring spaces. |
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// returns index into haystack right before the match |
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template<char... chars> |
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int64_t endmatch(const string& haystack) { |
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static const char needle[] = {chars...}; |
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int64_t haystack_i = haystack.length()-1; |
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for(int64_t i = sizeof...(chars)-1; i >= 0; i--) { |
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while(haystack_i >= 0 && haystack[haystack_i] == ' ') haystack_i--; |
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if(haystack_i < 0 || needle[i] != to_lower(haystack[haystack_i--])) return -1; |
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} |
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5796 |
return haystack_i+1; |
62 |
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} |
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/* |
65 |
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* Parses the address kind from an argument, given a list of allowed address kinds. |
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* Throws "invalid address mode" if the argument does not match any kinds. |
67 |
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*/ |
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// i still don't like this function... |
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template<addr_kind... allowed_kinds> |
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std::pair<addr_kind, string> parse_addr_kind(insn_context& arg) { |
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int64_t start_i = 0, end_i = arg.arg.length(); |
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// If this addressing kind is allowed, return it, along with a trimmed version of the string. |
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#define RETURN_IF_ALLOWED(kind) \ |
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if constexpr(((allowed_kinds == addr_kind::kind) || ...)) { \ |
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string out(arg.arg.data() + start_i, end_i - start_i); \ |
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return std::make_pair(addr_kind::kind, out); \ |
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} |
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if((start_i = startmatch<'#'>(arg.arg)) >= 0) { |
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RETURN_IF_ALLOWED(imm); |
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✗ |
asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
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} |
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if((start_i = startmatch<'('>(arg.arg)) >= 0) { |
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if((end_i = endmatch<',', 's', ')', ',', 'y'>(arg.arg)) >= 0) { |
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RETURN_IF_ALLOWED(sy); |
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✗ |
asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
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} |
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if((end_i = endmatch<')', ',', 'y'>(arg.arg)) >= 0) { |
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576 |
RETURN_IF_ALLOWED(indy); |
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✗ |
asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
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} |
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if((end_i = endmatch<',', 'x', ')'>(arg.arg)) >= 0) { |
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RETURN_IF_ALLOWED(xind); |
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✗ |
asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
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} |
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if((end_i = endmatch<')'>(arg.arg)) >= 0) { |
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RETURN_IF_ALLOWED(ind); |
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✗ |
asar_throw_warning(1, warning_id_assuming_address_mode, "($00)", "$00", " (if this was intentional, add a +0 after the parentheses.)"); |
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} |
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} |
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if((start_i = startmatch<'['>(arg.arg)) >= 0) { |
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if((end_i = endmatch<']', ',', 'y'>(arg.arg)) >= 0) { |
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RETURN_IF_ALLOWED(lindy); |
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✗ |
asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
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} |
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if((end_i = endmatch<']'>(arg.arg)) >= 0) { |
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RETURN_IF_ALLOWED(lind); |
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asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
108 |
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} |
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} |
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start_i = 0; |
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if((end_i = endmatch<',', 'x'>(arg.arg)) >= 0) { |
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RETURN_IF_ALLOWED(x); |
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asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
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} |
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if((end_i = endmatch<',', 'y'>(arg.arg)) >= 0) { |
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RETURN_IF_ALLOWED(y); |
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✗ |
asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
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} |
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if((end_i = endmatch<',', 's'>(arg.arg)) >= 0) { |
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576 |
RETURN_IF_ALLOWED(s); |
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✗ |
asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
122 |
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} |
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// hoping that by now, something would have stripped whitespace lol |
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if(arg.arg.length() == 0) { |
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11736 |
RETURN_IF_ALLOWED(imp); |
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✗ |
asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
127 |
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} |
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if(arg.arg == "a" || arg.arg == "A") { |
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432 |
RETURN_IF_ALLOWED(a); |
130 |
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// todo: some hint for "don't name your label "a" "? |
131 |
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36 |
asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
132 |
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} |
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if constexpr(((allowed_kinds == addr_kind::abs) || ...)) { |
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return std::make_pair(addr_kind::abs, arg.arg); |
135 |
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} |
136 |
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✗ |
asar_throw_error(1, error_type_block, error_id_bad_addr_mode); |
137 |
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#undef RETURN_IF_ALLOWED |
138 |
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// clang doesn't know that asar_throw_error is noreturn in this case... :( |
139 |
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// we don't really have anything good to return either tho |
140 |
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✗ |
__builtin_unreachable(); |
141 |
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} |
142 |
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143 |
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✗ |
const char* format_valid_widths(int min, int max) { |
144 |
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✗ |
if(min == 1) { |
145 |
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✗ |
if(max == 1) return "only 8-bit"; |
146 |
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✗ |
if(max == 2) return "only 8-bit or 16-bit"; |
147 |
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✗ |
if(max == 3) return "any width"; // shouldn't actually happen lol |
148 |
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✗ |
} else if(min == 2) { |
149 |
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✗ |
if(max == 2) return "only 16-bit"; |
150 |
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✗ |
if(max == 3) return "only 16-bit or 24-bit"; |
151 |
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✗ |
} else if(min == 3) { |
152 |
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✗ |
return "only 24-bit"; |
153 |
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} |
154 |
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✗ |
return "???"; |
155 |
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} |
156 |
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157 |
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7305 |
int get_real_len(int min_len, int max_len, char modifier, int arg_min_len) { |
158 |
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if(modifier != 0) { |
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int given_len = getlenfromchar(modifier); |
160 |
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2322 |
if(given_len < min_len || given_len > max_len) |
161 |
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✗ |
asar_throw_error(2, error_type_block, error_id_bad_access_width, format_valid_widths(min_len, max_len), given_len*8); |
162 |
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2322 |
return given_len; |
163 |
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} else { |
164 |
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4965 |
if(arg_min_len > max_len) { |
165 |
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✗ |
asar_throw_error(2, error_type_block, error_id_bad_access_width, format_valid_widths(min_len, max_len), arg_min_len*8); |
166 |
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} |
167 |
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// todo warn about widening when dpbase != 0 |
168 |
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4965 |
return std::max(arg_min_len, min_len); |
169 |
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} |
170 |
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} |
171 |
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172 |
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void check_implicit_immediate(char modifier, const string& target) { |
173 |
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1113 |
if(modifier != 0) return; |
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573 |
if(is_hex_constant(target.data())) return; |
175 |
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87 |
asar_throw_warning(2, warning_id_implicitly_sized_immediate); |
176 |
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} |
177 |
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178 |
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template<int base, bool allow_imm = true> |
179 |
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9006 |
void the8(insn_context& arg) { |
180 |
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using K = addr_kind; |
181 |
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auto parse_result = parse_addr_kind<K::xind, K::s, K::abs, K::lind, K::imm, K::indy, K::ind, K::sy, K::x, K::y, K::lindy>(arg); |
182 |
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9006 |
addr_kind kind = parse_result.first; |
183 |
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int min_len = 0, max_len = 4; |
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int64_t the_num = pass == 2 ? getnum(parse_result.second) : 0; |
185 |
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int arg_min_len = getlen(parse_result.second, kind == K::imm); |
186 |
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8982 |
if(kind == K::xind || kind == K::s || kind == K::sy || kind == K::indy || kind == K::ind || kind == K::lind || kind == K::lindy) min_len = max_len = 1; |
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else if(kind == K::abs) min_len = 1, max_len = 3; |
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else if(kind == K::x) min_len = 1, max_len = 3; |
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900 |
else if(kind == K::y) min_len = max_len = 2; |
190 |
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756 |
else if(kind == K::imm) min_len = 1, max_len = 2; |
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if(kind == K::imm) check_implicit_immediate(arg.modifier, parse_result.second); |
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int real_len = get_real_len(min_len, max_len, arg.modifier, arg_min_len); |
193 |
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4476 |
int opcode_offset = 0; |
194 |
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8946 |
if(real_len == 1) { |
195 |
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if(kind == K::xind) opcode_offset = 0x1; |
196 |
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if(kind == K::s) opcode_offset = 0x3; |
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if(kind == K::abs) opcode_offset = 0x5; |
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if(kind == K::lind) opcode_offset = 0x7; |
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if(kind == K::imm) opcode_offset = 0x9; |
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if(kind == K::indy) opcode_offset = 0x11; |
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if(kind == K::ind) opcode_offset = 0x12; |
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if(kind == K::sy) opcode_offset = 0x13; |
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if(kind == K::x) opcode_offset = 0x15; |
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if(kind == K::lindy) opcode_offset = 0x17; |
205 |
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} else if(real_len == 2) { |
206 |
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if(kind == K::imm) opcode_offset = 0x9; |
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if(kind == K::abs) opcode_offset = 0xd; |
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if(kind == K::y) opcode_offset = 0x19; |
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if(kind == K::x) opcode_offset = 0x1d; |
210 |
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1812 |
} else if(real_len == 3) { |
211 |
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if(kind == K::abs) opcode_offset = 0xf; |
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1194 |
if(kind == K::x) opcode_offset = 0x1f; |
213 |
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} |
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8946 |
write1(opcode_offset + base); |
215 |
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8946 |
if(real_len == 1) write1(the_num); |
216 |
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|
5016 |
else if(real_len == 2) write2(the_num); |
217 |
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|
1812 |
else if(real_len == 3) write3(the_num); |
218 |
|
8976 |
} |
219 |
|
|
|
220 |
|
|
template<int base, int accum_opc, bool is_bit = false> |
221 |
|
2448 |
void thenext8(insn_context& arg) { |
222 |
|
|
using K = addr_kind; |
223 |
|
|
addr_kind kind; |
224 |
|
1224 |
string parsed_str; |
225 |
|
|
if constexpr(is_bit) { |
226 |
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|
432 |
auto parse_result = parse_addr_kind<K::x, K::abs, K::imm>(arg); |
227 |
|
432 |
kind = parse_result.first; |
228 |
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216 |
parsed_str = parse_result.second; |
229 |
|
216 |
} else { |
230 |
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|
2016 |
auto parse_result = parse_addr_kind<K::x, K::abs, K::imm, K::a, K::imp>(arg); |
231 |
|
2016 |
kind = parse_result.first; |
232 |
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1008 |
parsed_str = parse_result.second; |
233 |
|
|
// todo: some checks on arg.modifier here |
234 |
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|
2016 |
if(kind == K::imm) { |
235 |
|
|
// implied rep |
236 |
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|
72 |
int64_t rep_count = getnum(parsed_str); |
237 |
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72 |
if(foundlabel) asar_throw_error(0, error_type_block, error_id_no_labels_here); |
238 |
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|
252 |
for (int64_t i=0;i<rep_count;i++) { write1(accum_opc); } |
239 |
|
36 |
return; |
240 |
|
|
} |
241 |
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|
1944 |
if(kind == K::a || kind == K::imp) { |
242 |
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216 |
write1(accum_opc); |
243 |
|
108 |
return; |
244 |
|
|
} |
245 |
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|
1008 |
} |
246 |
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2160 |
int64_t the_num = pass == 2 ? getnum(parsed_str) : 0; |
247 |
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2160 |
int arg_min_len = getlen(parsed_str, kind == K::imm); |
248 |
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|
2160 |
int real_len = get_real_len(1, 2, arg.modifier, arg_min_len); |
249 |
|
1080 |
int opcode = 0; |
250 |
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|
1296 |
if(kind == K::imm) { |
251 |
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|
144 |
check_implicit_immediate(arg.modifier, parsed_str); |
252 |
|
72 |
opcode = accum_opc; |
253 |
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|
2016 |
} else if(real_len == 1) { |
254 |
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|
1008 |
if(kind == K::abs) opcode = base+0x6; |
255 |
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|
756 |
if(kind == K::x) opcode = base+0x16; |
256 |
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|
1008 |
} else if(real_len == 2) { |
257 |
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|
1008 |
if(kind == K::abs) opcode = base+0xe; |
258 |
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|
756 |
if(kind == K::x) opcode = base+0x1e; |
259 |
|
|
} |
260 |
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|
2160 |
write1(opcode); |
261 |
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|
2160 |
if(real_len == 1) write1(the_num); |
262 |
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|
1080 |
else if(real_len == 2) write2(the_num); |
263 |
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|
2448 |
} |
264 |
|
|
|
265 |
|
|
template<int base> |
266 |
|
288 |
void tsb_trb(insn_context& arg) { |
267 |
|
|
using K = addr_kind; |
268 |
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|
288 |
auto parse_result = parse_addr_kind<K::abs>(arg); |
269 |
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|
288 |
int64_t the_num = pass == 2 ? getnum(parse_result.second) : 0; |
270 |
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|
288 |
int arg_min_len = getlen(parse_result.second, false); |
271 |
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|
288 |
int real_len = get_real_len(1, 2, arg.modifier, arg_min_len); |
272 |
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|
288 |
int opcode_offset = real_len == 1 ? 0x04 : 0x0c; |
273 |
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|
288 |
write1(opcode_offset + base); |
274 |
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|
288 |
if(real_len == 1) write1(the_num); |
275 |
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|
144 |
else if(real_len == 2) write2(the_num); |
276 |
|
288 |
} |
277 |
|
|
|
278 |
|
|
template<int opc, int width = 1> |
279 |
|
432 |
void branch(insn_context& arg) { |
280 |
|
|
using K = addr_kind; |
281 |
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|
432 |
auto parse_result = parse_addr_kind<K::abs>(arg); |
282 |
|
198 |
int64_t num = 0; |
283 |
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|
396 |
if(pass == 2) { |
284 |
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|
132 |
num = getnum(parse_result.second); |
285 |
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|
132 |
if(foundlabel) { |
286 |
|
120 |
int64_t delta = num - (snespos + width + 1); |
287 |
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|
120 |
if((num & ~0xffff) != (snespos & ~0xffff)) { |
288 |
|
|
// todo: should throw error "can't branch to different bank" |
289 |
|
✗ |
asar_throw_error(2, error_type_block, error_id_relative_branch_out_of_bounds, dec(delta).data()); |
290 |
|
|
} |
291 |
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|
108 |
if(width==1 && (delta < -128 || delta > 127)) { |
292 |
|
✗ |
asar_throw_error(2, error_type_block, error_id_relative_branch_out_of_bounds, dec(delta).data()); |
293 |
|
|
} |
294 |
|
60 |
num = delta; |
295 |
|
|
} else { |
296 |
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|
12 |
if(num & ~(width==2 ? 0xffff : 0xff)) { |
297 |
|
✗ |
asar_throw_error(2, error_type_block, error_id_relative_branch_out_of_bounds, dec(num).data()); |
298 |
|
|
} |
299 |
|
12 |
num = (int16_t)(width==2 ? num : (int8_t)num); |
300 |
|
|
} |
301 |
|
|
} |
302 |
|
|
|
303 |
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|
396 |
write1(opc); |
304 |
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|
324 |
if(width == 1) write1(num); |
305 |
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|
72 |
else if(width == 2) write2(num); |
306 |
|
396 |
} |
307 |
|
|
|
308 |
|
|
template<int opc> |
309 |
|
1404 |
void implied(insn_context& arg) { |
310 |
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|
1404 |
if(arg.arg != "") { |
311 |
|
|
// todo: some kind of "this instruction doesn't take an argument" message? |
312 |
|
✗ |
asar_throw_error(0, error_type_block, error_id_bad_addr_mode); |
313 |
|
|
} |
314 |
|
1404 |
write1(opc); |
315 |
|
1404 |
} |
316 |
|
|
|
317 |
|
|
template<int opc> |
318 |
|
6120 |
void implied_rep(insn_context& arg) { |
319 |
|
|
using K = addr_kind; |
320 |
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|
6120 |
auto parse_result = parse_addr_kind<K::imm, K::imp>(arg); |
321 |
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|
6120 |
if(parse_result.first == K::imp) { |
322 |
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|
5760 |
write1(opc); |
323 |
|
|
} else { |
324 |
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|
360 |
int64_t rep_count = getnum(parse_result.second); |
325 |
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|
360 |
if(foundlabel) asar_throw_error(0, error_type_block, error_id_no_labels_here); |
326 |
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|
1188 |
for (int64_t i=0;i<rep_count;i++) { write1(opc); } |
327 |
|
|
} |
328 |
|
6120 |
} |
329 |
|
|
|
330 |
|
|
template<int base, char op, char xy> |
331 |
|
1800 |
void xy_ops(insn_context& arg) { |
332 |
|
|
using K = addr_kind; |
333 |
|
900 |
std::pair<addr_kind, string> parse_result; |
334 |
|
|
if(op == 'S') { // stx |
335 |
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|
360 |
parse_result = parse_addr_kind<K::abs, (xy == 'X' ? K::y : K::x)>(arg); |
336 |
|
|
} else if(op == 'L') { // ldx |
337 |
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|
864 |
parse_result = parse_addr_kind<K::abs, K::imm, (xy == 'X' ? K::y : K::x)>(arg); |
338 |
|
|
} else { // cpx |
339 |
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|
576 |
parse_result = parse_addr_kind<K::abs, K::imm>(arg); |
340 |
|
|
} |
341 |
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|
1800 |
int64_t the_num = pass == 2 ? getnum(parse_result.second) : 0; |
342 |
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|
1800 |
int arg_min_len = getlen(parse_result.second, false); |
343 |
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|
1800 |
int real_len = get_real_len(1, 2, arg.modifier, arg_min_len); |
344 |
|
900 |
int opcode = 0; |
345 |
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|
1800 |
if(parse_result.first == K::imm) { |
346 |
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|
576 |
check_implicit_immediate(arg.modifier, parse_result.second); |
347 |
|
288 |
opcode = base; |
348 |
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|
1224 |
} else if(parse_result.first == K::abs) { |
349 |
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|
864 |
if(real_len == 1) opcode = base + 0x4; |
350 |
|
216 |
else opcode = base + 0xc; |
351 |
|
|
} else { // ,x or ,y |
352 |
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|
360 |
if(real_len == 1) opcode = base + 0x14; |
353 |
|
72 |
else opcode = base + 0x1c; |
354 |
|
|
} |
355 |
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|
1800 |
write1(opcode); |
356 |
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|
1800 |
if(real_len == 1) write1(the_num); |
357 |
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|
864 |
else if(real_len == 2) write2(the_num); |
358 |
|
1800 |
} |
359 |
|
|
|
360 |
|
|
template<int opc> |
361 |
|
216 |
void interrupt(insn_context& arg) { |
362 |
|
|
using K = addr_kind; |
363 |
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|
216 |
auto parse_result = parse_addr_kind<K::imm, K::imp>(arg); |
364 |
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|
216 |
if(parse_result.first == K::imp) { |
365 |
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|
108 |
write1(opc); |
366 |
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|
108 |
write1(0); |
367 |
|
|
} else { |
368 |
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|
108 |
int64_t num = pass == 2 ? getnum(parse_result.second) : 0; |
369 |
|
|
// this is kinda hacky |
370 |
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|
72 |
if(num < 0 || num > 255) asar_throw_error(2, error_type_block, error_id_bad_access_width, format_valid_widths(1, 1), num > 65535 ? 24 : 16); |
371 |
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|
108 |
write1(opc); |
372 |
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|
108 |
write1(num); |
373 |
|
|
} |
374 |
|
216 |
} |
375 |
|
|
|
376 |
|
|
template<int opc, addr_kind k, int width> |
377 |
|
504 |
void oneoff(insn_context& arg) { |
378 |
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|
504 |
auto parse_result = parse_addr_kind<k>(arg); |
379 |
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|
504 |
int64_t the_num = pass == 2 ? getnum(parse_result.second) : 0; |
380 |
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|
504 |
int arg_min_len = getlen(parse_result.second, false); |
381 |
|
|
// only for error checking, we know the answer anyways |
382 |
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|
504 |
get_real_len(width, width, arg.modifier, arg_min_len); |
383 |
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|
504 |
write1(opc); |
384 |
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|
108 |
if(width == 1) write1(the_num); |
385 |
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|
36 |
else if(width == 2) write2(the_num); |
386 |
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|
360 |
else if(width == 3) write3(the_num); |
387 |
|
504 |
} |
388 |
|
|
|
389 |
|
144 |
void stz(insn_context& arg) { |
390 |
|
|
using K = addr_kind; |
391 |
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|
144 |
auto parse_result = parse_addr_kind<K::abs, K::x>(arg); |
392 |
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|
144 |
int64_t the_num = pass == 2 ? getnum(parse_result.second) : 0; |
393 |
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|
144 |
int arg_min_len = getlen(parse_result.second, false); |
394 |
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|
144 |
int real_len = get_real_len(1, 2, arg.modifier, arg_min_len); |
395 |
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|
144 |
if(real_len == 1) { |
396 |
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|
72 |
if(parse_result.first == K::abs) write1(0x64); |
397 |
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|
36 |
else if(parse_result.first == K::x) write1(0x74); |
398 |
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|
72 |
write1(the_num); |
399 |
|
|
} else { |
400 |
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|
72 |
if(parse_result.first == K::abs) write1(0x9c); |
401 |
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|
36 |
else if(parse_result.first == K::x) write1(0x9e); |
402 |
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|
72 |
write2(the_num); |
403 |
|
|
} |
404 |
|
144 |
} |
405 |
|
|
|
406 |
|
|
template<char which> |
407 |
|
588 |
void jmp_jsr_jml(insn_context& arg) { |
408 |
|
|
using K = addr_kind; |
409 |
1/2
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|
588 |
auto parse_result = which == 'R' ? parse_addr_kind<K::abs, K::xind>(arg) |
410 |
|
|
: which == 'P' ? parse_addr_kind<K::abs, K::xind, K::ind, K::lind>(arg) |
411 |
|
|
: /* 'L' */ parse_addr_kind<K::abs, K::lind>(arg); |
412 |
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|
588 |
int64_t the_num = pass == 2 ? getnum(parse_result.second) : 0; |
413 |
|
|
// set optimizeforbank to -1 (i.e. auto, assume DBR = current bank) |
414 |
|
|
// because jmp and jsr's arguments are relative to the program bank anyways |
415 |
|
588 |
int old_optimize = optimizeforbank; |
416 |
4/4
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|
588 |
if(parse_result.first == K::lind || parse_result.first == K::ind) { |
417 |
|
|
// these ones for Some Reason always read the pointer from bank 0 lol |
418 |
|
144 |
optimizeforbank = 0; |
419 |
|
|
} else { |
420 |
|
|
// the rest use bank K |
421 |
|
444 |
optimizeforbank = -1; |
422 |
|
|
} |
423 |
1/2
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|
588 |
int arg_min_len = getlen(parse_result.second, false); |
424 |
|
588 |
optimizeforbank = old_optimize; |
425 |
3/5
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|
606 |
get_real_len(2, (which == 'L' && parse_result.first == K::abs) ? 3 : 2, arg.modifier, arg_min_len); |
426 |
|
|
if(which == 'R') { |
427 |
3/4
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|
288 |
if(parse_result.first == K::abs) write1(0x20); |
428 |
2/4
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|
36 |
else if(parse_result.first == K::xind) write1(0xfc); |
429 |
|
|
} else if(which == 'L') { |
430 |
2/2
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|
108 |
if(parse_result.first == K::abs) { |
431 |
1/2
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|
72 |
write1(0x5c); |
432 |
1/2
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|
72 |
write3(the_num); |
433 |
|
36 |
return; |
434 |
1/2
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|
36 |
} else if(parse_result.first == K::lind) { |
435 |
1/2
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|
36 |
write1(0xdc); |
436 |
|
|
} |
437 |
|
|
} else { |
438 |
3/4
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✓ Branch 1 taken 72 times.
✓ Branch 2 taken 24 times.
✗ Branch 3 not taken.
|
192 |
if(parse_result.first == K::abs) write1(0x4c); |
439 |
3/4
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|
144 |
else if(parse_result.first == K::ind) write1(0x6c); |
440 |
3/4
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✗ Branch 3 not taken.
|
108 |
else if(parse_result.first == K::xind) write1(0x7c); |
441 |
2/4
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|
72 |
else if(parse_result.first == K::lind) write1(0xdc); |
442 |
|
|
} |
443 |
1/2
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|
516 |
write2(the_num); |
444 |
2/2
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✓ Branch 1 taken 18 times.
|
300 |
} |
445 |
|
|
|
446 |
|
|
template<int opc> |
447 |
|
72 |
void mvn_mvp(insn_context& arg) { |
448 |
|
|
int count; |
449 |
1/2
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|
72 |
autoptr<char**> parts = qpsplit(arg.arg.raw(), ',', &count); |
450 |
1/4
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|
72 |
if(count != 2) asar_throw_error(2, error_type_block, error_id_bad_addr_mode); |
451 |
|
|
// todo length checks ??? |
452 |
1/2
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|
72 |
write1(opc); |
453 |
2/2
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✓ Branch 1 taken 24 times.
|
72 |
if(pass == 2) { |
454 |
2/4
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|
24 |
write1(getnum(parts[0])); |
455 |
2/4
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✗ Branch 1 not taken.
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|
24 |
write1(getnum(parts[1])); |
456 |
|
|
} else { |
457 |
1/2
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|
48 |
write2(0); |
458 |
|
|
} |
459 |
|
72 |
} |
460 |
|
|
|
461 |
|
|
assocarr<void(*)(insn_context&)> mnemonics = { |
462 |
|
|
{ "ora", the8<0x00> }, |
463 |
|
|
{ "and", the8<0x20> }, |
464 |
|
|
{ "eor", the8<0x40> }, |
465 |
|
|
{ "adc", the8<0x60> }, |
466 |
|
|
{ "sta", the8<0x80, false> }, |
467 |
|
|
{ "lda", the8<0xa0> }, |
468 |
|
|
{ "cmp", the8<0xc0> }, |
469 |
|
|
{ "sbc", the8<0xe0> }, |
470 |
|
|
{ "asl", thenext8<0x00, 0x0a> }, |
471 |
|
|
{ "bit", thenext8<0x1e, 0x89, true> }, |
472 |
|
|
{ "rol", thenext8<0x20, 0x2a> }, |
473 |
|
|
{ "lsr", thenext8<0x40, 0x4a> }, |
474 |
|
|
{ "ror", thenext8<0x60, 0x6a> }, |
475 |
|
|
{ "dec", thenext8<0xc0, 0x3a> }, |
476 |
|
|
{ "inc", thenext8<0xe0, 0x1a> }, |
477 |
|
|
{ "bcc", branch<0x90> }, |
478 |
|
|
{ "bcs", branch<0xb0> }, |
479 |
|
|
{ "beq", branch<0xf0> }, |
480 |
|
|
{ "bmi", branch<0x30> }, |
481 |
|
|
{ "bne", branch<0xd0> }, |
482 |
|
|
{ "bpl", branch<0x10> }, |
483 |
|
|
{ "bra", branch<0x80> }, |
484 |
|
|
{ "bvc", branch<0x50> }, |
485 |
|
|
{ "bvs", branch<0x70> }, |
486 |
|
|
{ "brl", branch<0x82, 2> }, |
487 |
|
|
{ "clc", implied<0x18> }, |
488 |
|
|
{ "cld", implied<0xd8> }, |
489 |
|
|
{ "cli", implied<0x58> }, |
490 |
|
|
{ "clv", implied<0xb8> }, |
491 |
|
|
{ "dex", implied_rep<0xca> }, |
492 |
|
|
{ "dey", implied_rep<0x88> }, |
493 |
|
|
{ "inx", implied_rep<0xe8> }, |
494 |
|
|
{ "iny", implied_rep<0xc8> }, |
495 |
|
|
{ "nop", implied_rep<0xea> }, |
496 |
|
|
{ "pha", implied<0x48> }, |
497 |
|
|
{ "phb", implied<0x8b> }, |
498 |
|
|
{ "phd", implied<0x0b> }, |
499 |
|
|
{ "phk", implied<0x4b> }, |
500 |
|
|
{ "php", implied<0x08> }, |
501 |
|
|
{ "phx", implied<0xda> }, |
502 |
|
|
{ "phy", implied<0x5a> }, |
503 |
|
|
{ "pla", implied<0x68> }, |
504 |
|
|
{ "plb", implied<0xab> }, |
505 |
|
|
{ "pld", implied<0x2b> }, |
506 |
|
|
{ "plp", implied<0x28> }, |
507 |
|
|
{ "plx", implied<0xfa> }, |
508 |
|
|
{ "ply", implied<0x7a> }, |
509 |
|
|
{ "rti", implied<0x40> }, |
510 |
|
|
{ "rtl", implied<0x6b> }, |
511 |
|
|
{ "rts", implied<0x60> }, |
512 |
|
|
{ "sec", implied<0x38> }, |
513 |
|
|
{ "sed", implied<0xf8> }, |
514 |
|
|
{ "sei", implied<0x78> }, |
515 |
|
|
{ "stp", implied<0xdb> }, |
516 |
|
|
{ "tax", implied<0xaa> }, |
517 |
|
|
{ "tay", implied<0xa8> }, |
518 |
|
|
{ "tcd", implied<0x5b> }, |
519 |
|
|
{ "tcs", implied<0x1b> }, |
520 |
|
|
{ "tdc", implied<0x7b> }, |
521 |
|
|
{ "tsc", implied<0x3b> }, |
522 |
|
|
{ "tsx", implied<0xba> }, |
523 |
|
|
{ "txa", implied<0x8a> }, |
524 |
|
|
{ "txs", implied<0x9a> }, |
525 |
|
|
{ "txy", implied<0x9b> }, |
526 |
|
|
{ "tya", implied<0x98> }, |
527 |
|
|
{ "tyx", implied<0xbb> }, |
528 |
|
|
{ "wai", implied<0xcb> }, |
529 |
|
|
{ "xba", implied<0xeb> }, |
530 |
|
|
{ "xce", implied<0xfb> }, |
531 |
|
|
{ "ldy", xy_ops<0xa0, 'L', 'Y'> }, |
532 |
|
|
{ "ldx", xy_ops<0xa2, 'L', 'X'> }, |
533 |
|
|
{ "cpy", xy_ops<0xc0, 'C', 'Y'> }, |
534 |
|
|
{ "cpx", xy_ops<0xe0, 'C', 'X'> }, |
535 |
|
|
{ "stx", xy_ops<0x82, 'S', 'X'> }, |
536 |
|
|
{ "sty", xy_ops<0x80, 'S', 'Y'> }, |
537 |
|
|
{ "cop", interrupt<0x02> }, |
538 |
|
|
{ "wdm", interrupt<0x42> }, |
539 |
|
|
{ "brk", interrupt<0x00> }, |
540 |
|
|
{ "tsb", tsb_trb<0x00> }, |
541 |
|
|
{ "trb", tsb_trb<0x10> }, |
542 |
|
|
{ "rep", oneoff<0xc2, addr_kind::imm, 1> }, |
543 |
|
|
{ "sep", oneoff<0xe2, addr_kind::imm, 1> }, |
544 |
|
|
{ "pei", oneoff<0xd4, addr_kind::ind, 1> }, |
545 |
|
|
{ "pea", oneoff<0xf4, addr_kind::abs, 2> }, |
546 |
|
|
{ "mvn", mvn_mvp<0x54> }, |
547 |
|
|
{ "mvp", mvn_mvp<0x44> }, |
548 |
|
|
{ "jsl", oneoff<0x22, addr_kind::abs, 3> }, |
549 |
|
|
{ "per", branch<0x62, 2> }, |
550 |
|
|
{ "stz", stz }, |
551 |
|
|
{ "jmp", jmp_jsr_jml<'P'> }, |
552 |
|
|
{ "jsr", jmp_jsr_jml<'R'> }, |
553 |
|
|
{ "jml", jmp_jsr_jml<'L'> }, |
554 |
|
|
}; |
555 |
|
|
|
556 |
|
|
|
557 |
|
67332 |
bool asblock_65816(char** word, int numwords) |
558 |
|
|
{ |
559 |
|
|
#define is(test) (!stricmpwithupper(word[0], test)) |
560 |
2/2
✓ Branch 0 taken 36846 times.
✓ Branch 1 taken 30486 times.
|
67332 |
if(word[0][0] == '\'') return false; |
561 |
|
29883 |
string par; |
562 |
2/2
✓ Branch 0 taken 60963 times.
✓ Branch 1 taken 66126 times.
|
127089 |
for(int i = 1; i < numwords; i++){ |
563 |
3/4
✓ Branch 0 taken 1848 times.
✓ Branch 1 taken 59115 times.
✓ Branch 2 taken 924 times.
✗ Branch 3 not taken.
|
60963 |
if(i > 1) par += " "; |
564 |
1/2
✓ Branch 0 taken 27288 times.
✗ Branch 1 not taken.
|
60963 |
par += word[i]; |
565 |
|
|
} |
566 |
|
|
// todo handle code like `nop = $1234` |
567 |
1/2
✓ Branch 0 taken 29883 times.
✗ Branch 1 not taken.
|
66126 |
string opc = word[0]; |
568 |
4/4
✓ Branch 0 taken 368832 times.
✓ Branch 1 taken 36243 times.
✓ Branch 2 taken 150231 times.
✓ Branch 3 taken 29883 times.
|
441318 |
for(int i = 0; i < opc.length(); i++) opc.raw()[i] = to_lower(opc[i]); |
569 |
|
29883 |
char mod = 0; |
570 |
9/10
✓ Branch 0 taken 65982 times.
✓ Branch 1 taken 144 times.
✓ Branch 2 taken 30909 times.
✓ Branch 3 taken 35073 times.
✓ Branch 4 taken 29739 times.
✗ Branch 5 not taken.
✓ Branch 6 taken 1170 times.
✓ Branch 7 taken 28569 times.
✓ Branch 8 taken 1170 times.
✓ Branch 9 taken 28713 times.
|
66126 |
if(opc.length() >= 2 && opc[opc.length()-2] == '.') { |
571 |
1/2
✓ Branch 0 taken 1170 times.
✗ Branch 1 not taken.
|
2340 |
mod = opc[opc.length()-1]; |
572 |
2/4
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✗ Branch 1 not taken.
✓ Branch 2 taken 1170 times.
✗ Branch 3 not taken.
|
2340 |
opc.truncate(opc.length()-2); |
573 |
|
|
} |
574 |
4/4
✓ Branch 0 taken 35670 times.
✓ Branch 1 taken 30456 times.
✓ Branch 2 taken 24087 times.
✓ Branch 3 taken 5796 times.
|
66126 |
if(!mnemonics.exists(opc.data())) return false; |
575 |
2/2
✓ Branch 0 taken 11559 times.
✓ Branch 1 taken 24 times.
|
11583 |
insn_context ctx{par, {}, mod}; |
576 |
|
11583 |
ctx.orig_insn[0] = opc[0]; |
577 |
|
11583 |
ctx.orig_insn[1] = opc[1]; |
578 |
|
11583 |
ctx.orig_insn[2] = opc[2]; |
579 |
4/4
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✓ Branch 1 taken 24 times.
✓ Branch 2 taken 5772 times.
✓ Branch 3 taken 24 times.
|
11583 |
mnemonics.find(opc.data())(ctx); |
580 |
|
5772 |
return true; |
581 |
|
66198 |
} |
582 |
|
|
|