📄 call-rt-st.c
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#include <stdio.h>#include <stdlib.h>#include <string.h>/************************************************************************** * TESTS : * function returning large structures, which go on the stack * functions returning varied sized structs which go on in the registers. ***************************************************************************//* A large structure (> 64 bits) used to test passing large structures as * parameters */struct array_rep_info_t { int next_index[10]; int values[10]; int head;};/***************************************************************************** * Small structures ( <= 64 bits). These are used to test passing small * structures as parameters and test argument size promotion. *****************************************************************************/ /* 64 bits */struct small_rep_info_t { int value; int head;};/* 6 bits : really fits in 8 bits and is promoted to 8 bits */struct bit_flags_char_t { unsigned char alpha :1; unsigned char beta :1; unsigned char gamma :1; unsigned char delta :1; unsigned char epsilon :1; unsigned char omega :1;};/* 6 bits : really fits in 8 bits and is promoted to 16 bits */struct bit_flags_short_t { unsigned short alpha :1; unsigned short beta :1; unsigned short gamma :1; unsigned short delta :1; unsigned short epsilon :1; unsigned short omega :1;};/* 6 bits : really fits in 8 bits and is promoted to 32 bits */struct bit_flags_t { unsigned alpha :1; unsigned beta :1; unsigned gamma :1; unsigned delta :1; unsigned epsilon :1; unsigned omega :1;};/* 22 bits : really fits in 40 bits and is promoted to 64 bits */struct bit_flags_combo_t { unsigned alpha :1; unsigned beta :1; char ch1; unsigned gamma :1; unsigned delta :1; char ch2; unsigned epsilon :1; unsigned omega :1;};/* 64 bits */struct one_double_t { double double1;};/* 64 bits */struct two_floats_t { float float1; float float2;};/* 24 bits : promoted to 32 bits */struct three_char_t { char ch1; char ch2; char ch3;};/* 40 bits : promoted to 64 bits */struct five_char_t { char ch1; char ch2; char ch3; char ch4; char ch5;};/* 40 bits : promoted to 64 bits */struct int_char_combo_t { int int1; char ch1;};/***************************************************************** * LOOP_COUNT : * A do nothing function. Used to provide a point at which calls can be made. *****************************************************************/void loop_count () { int index; for (index=0; index<4; index++);}/***************************************************************** * INIT_BIT_FLAGS_CHAR : * Initializes a bit_flags_char_t structure. Can call this function see * the call command behavior when integer arguments do not fit into * registers and must be placed on the stack. * OUT struct bit_flags_char_t *bit_flags -- structure to be filled * IN unsigned a -- 0 or 1 * IN unsigned b -- 0 or 1 * IN unsigned g -- 0 or 1 * IN unsigned d -- 0 or 1 * IN unsigned e -- 0 or 1 * IN unsigned o -- 0 or 1 *****************************************************************/#ifdef PROTOTYPESvoid init_bit_flags_char (struct bit_flags_char_t *bit_flags,unsigned a,unsigned b,unsigned g,unsigned d,unsigned e,unsigned o)#elsevoid init_bit_flags_char (bit_flags,a,b,g,d,e,o) struct bit_flags_char_t *bit_flags;unsigned a;unsigned b;unsigned g;unsigned d;unsigned e;unsigned o; #endif{ bit_flags->alpha = a; bit_flags->beta = b; bit_flags->gamma = g; bit_flags->delta = d; bit_flags->epsilon = e; bit_flags->omega = o;}/***************************************************************** * INIT_BIT_FLAGS_SHORT : * Initializes a bit_flags_short_t structure. Can call this function see * the call command behavior when integer arguments do not fit into * registers and must be placed on the stack. * OUT struct bit_flags_short_t *bit_flags -- structure to be filled * IN unsigned a -- 0 or 1 * IN unsigned b -- 0 or 1 * IN unsigned g -- 0 or 1 * IN unsigned d -- 0 or 1 * IN unsigned e -- 0 or 1 * IN unsigned o -- 0 or 1 *****************************************************************/#ifdef PROTOTYPESvoid init_bit_flags_short (struct bit_flags_short_t *bit_flags,unsigned a,unsigned b,unsigned g,unsigned d,unsigned e,unsigned o)#elsevoid init_bit_flags_short (bit_flags,a,b,g,d,e,o) struct bit_flags_short_t *bit_flags;unsigned a;unsigned b;unsigned g;unsigned d;unsigned e;unsigned o; #endif{ bit_flags->alpha = a; bit_flags->beta = b; bit_flags->gamma = g; bit_flags->delta = d; bit_flags->epsilon = e; bit_flags->omega = o;}/***************************************************************** * INIT_BIT_FLAGS : * Initializes a bit_flags_t structure. Can call this function see * the call command behavior when integer arguments do not fit into * registers and must be placed on the stack. * OUT struct bit_flags_t *bit_flags -- structure to be filled * IN unsigned a -- 0 or 1 * IN unsigned b -- 0 or 1 * IN unsigned g -- 0 or 1 * IN unsigned d -- 0 or 1 * IN unsigned e -- 0 or 1 * IN unsigned o -- 0 or 1 *****************************************************************/#ifdef PROTOTYPESvoid init_bit_flags (struct bit_flags_t *bit_flags,unsigned a,unsigned b,unsigned g,unsigned d,unsigned e,unsigned o)#elsevoid init_bit_flags (bit_flags,a,b,g,d,e,o) struct bit_flags_t *bit_flags;unsigned a;unsigned b;unsigned g;unsigned d;unsigned e;unsigned o; #endif{ bit_flags->alpha = a; bit_flags->beta = b; bit_flags->gamma = g; bit_flags->delta = d; bit_flags->epsilon = e; bit_flags->omega = o;}/***************************************************************** * INIT_BIT_FLAGS_COMBO : * Initializes a bit_flags_combo_t structure. Can call this function * to see the call command behavior when integer and character arguments * do not fit into registers and must be placed on the stack. * OUT struct bit_flags_combo_t *bit_flags_combo -- structure to fill * IN unsigned a -- 0 or 1 * IN unsigned b -- 0 or 1 * IN char ch1 * IN unsigned g -- 0 or 1 * IN unsigned d -- 0 or 1 * IN char ch2 * IN unsigned e -- 0 or 1 * IN unsigned o -- 0 or 1 *****************************************************************/#ifdef PROTOTYPESvoid init_bit_flags_combo (struct bit_flags_combo_t *bit_flags_combo,unsigned a,unsigned b,char ch1,unsigned g,unsigned d,char ch2,unsigned e,unsigned o)#elsevoid init_bit_flags_combo (bit_flags_combo, a, b, ch1, g, d, ch2, e, o)struct bit_flags_combo_t *bit_flags_combo;unsigned a;unsigned b;char ch1;unsigned g;unsigned d;char ch2;unsigned e;unsigned o;#endif{ bit_flags_combo->alpha = a; bit_flags_combo->beta = b; bit_flags_combo->ch1 = ch1; bit_flags_combo->gamma = g; bit_flags_combo->delta = d; bit_flags_combo->ch2 = ch2; bit_flags_combo->epsilon = e; bit_flags_combo->omega = o;}/***************************************************************** * INIT_ONE_DOUBLE : * OUT struct one_double_t *one_double -- structure to fill * IN double init_val *****************************************************************/#ifdef PROTOTYPESvoid init_one_double ( struct one_double_t *one_double, double init_val)#elsevoid init_one_double (one_double, init_val)struct one_double_t *one_double; double init_val;#endif{ one_double->double1 = init_val;}/***************************************************************** * INIT_TWO_FLOATS : * OUT struct two_floats_t *two_floats -- structure to be filled * IN float init_val1 * IN float init_val2 *****************************************************************/#ifdef PROTOTYPESvoid init_two_floats ( struct two_floats_t *two_floats, float init_val1, float init_val2)#elsevoid init_two_floats (two_floats, init_val1, init_val2)struct two_floats_t *two_floats;float init_val1;float init_val2;#endif{ two_floats->float1 = init_val1; two_floats->float2 = init_val2;}/***************************************************************** * INIT_THREE_CHARS : * OUT struct three_char_t *three_char -- structure to be filled * IN char init_val1 * IN char init_val2 * IN char init_val3 *****************************************************************/#ifdef PROTOTYPESvoid init_three_chars (struct three_char_t *three_char,char init_val1,char init_val2,char init_val3)#elsevoid init_three_chars ( three_char, init_val1, init_val2, init_val3)struct three_char_t *three_char;char init_val1;char init_val2;char init_val3;#endif{ three_char->ch1 = init_val1; three_char->ch2 = init_val2; three_char->ch3 = init_val3;}/***************************************************************** * INIT_FIVE_CHARS : * OUT struct five_char_t *five_char -- structure to be filled * IN char init_val1 * IN char init_val2 * IN char init_val3 * IN char init_val4 * IN char init_val5 *****************************************************************/#ifdef PROTOTYPESvoid init_five_chars (struct five_char_t *five_char,char init_val1,char init_val2,char init_val3,char init_val4,char init_val5)#elsevoid init_five_chars ( five_char, init_val1, init_val2, init_val3, init_val4, init_val5)struct five_char_t *five_char;char init_val1;char init_val2;char init_val3;⌨️ 快捷键说明
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