toy/emulator
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Improve the output to help and add author.

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lux 2017-08-18 16:18:36 +02:00
parent bc97f5bd79
commit 64dfa8abbd
2 changed files with 25 additions and 17 deletions
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9
src/main.c
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@ -43,7 +43,7 @@ int main(int argc, char *argv[])
if(execute(op_code,data_addr,ram)) //EXECUTE instruction, jump if ALU says if(execute(op_code,data_addr,ram)) //EXECUTE instruction, jump if ALU says
pc=find_data(ram[pc]); pc=find_data(ram[pc]);
else pc++; else pc++;
if(pc>4095) pc = pc % 4096; //TOY can only address 12 Bit if(pc>4095) pc = pc % 4096; //TOY_CPU can only address 12 Bit
//Handele user output //Handele user output
printf("PROGRAM COUNTER: %" PRIu16 "\n",pc); printf("PROGRAM COUNTER: %" PRIu16 "\n",pc);
@ -54,7 +54,12 @@ int main(int argc, char *argv[])
{ {
if(quit == 'c') makeHexDump(true,ram); if(quit == 'c') makeHexDump(true,ram);
else if(quit == 'q') run = false; else if(quit == 'q')
{
run = false;
printf("\nThis is an interpreter for the Koopman_TOY_CPU by\n"
"\tmichael.krause@uni-leipzig.de\n\n");
}
} }
} }
return 0; return 0;

31
src/toy.c
View File

@ -2,7 +2,7 @@
void print_instructionSet(void) void print_instructionSet(void)
{ {
printf("Boot process aborted!\n"); printf("interpretation terminated.\n");
printf("TOY-CPU Instruction Set:\n\n"); printf("TOY-CPU Instruction Set:\n\n");
printf("OP_Code 0 (0000b):\t STORE<12 BIT ADDRESS>\n"); printf("OP_Code 0 (0000b):\t STORE<12 BIT ADDRESS>\n");
printf("OP_Code 1 (0001b):\t LOAD\t<12 BIT ADDRESS>\n"); printf("OP_Code 1 (0001b):\t LOAD\t<12 BIT ADDRESS>\n");
@ -12,23 +12,27 @@ void print_instructionSet(void)
printf("OP_Code 5 (0101b):\t OR\t<12 BIT ADDRESS>\n"); printf("OP_Code 5 (0101b):\t OR\t<12 BIT ADDRESS>\n");
printf("OP_Code 6 (0110b):\t AND\t<12 BIT ADDRESS>\n"); printf("OP_Code 6 (0110b):\t AND\t<12 BIT ADDRESS>\n");
printf("OP_Code 7 (0111b):\t XOR\t<12 BIT ADDRESS>\n"); printf("OP_Code 7 (0111b):\t XOR\t<12 BIT ADDRESS>\n");
printf("OP_Code 8 (1000b):\t NOT\n"); printf("OP_Code 8 (1000b):\t NOT\t<12 BIT undefined>\n");
printf("OP_Code 9 (1001b):\t INC\n"); printf("OP_Code 9 (1001b):\t INC\t<12 BIT undefined>\n");
printf("OP_Code 10 (1010b):\t DEC\n"); printf("OP_Code 10 (1010b):\t DEC\t<12 BIT undefined>\n");
printf("OP_Code 11 (1011b):\t ZERO\n"); printf("OP_Code 11 (1011b):\t ZERO\t<12 BIT undefined>\n");
printf("OP_Code 12 (1100b):\t NOP\n"); printf("OP_Code 12 (1100b):\t NOP\t<12 BIT undefined>\n");
printf("OP_Code 13 (1101b):\t NOP\n"); printf("OP_Code 13 (1101b):\t NOP\t<12 BIT undefined>\n");
printf("OP_Code 14 (1110b):\t NOP\n"); printf("OP_Code 14 (1110b):\t NOP\t<12 BIT undefined>\n");
printf("OP_Code 15 (1111b):\t NOP\n\n"); printf("OP_Code 15 (1111b):\t NOP\t<12 BIT undefined>\n\n");
printf("BIT\t 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0\n" printf("BIT\t|15 14 13 12|11 10 9 8 7 6 5 4 3 2 1 0|\n"
"\t--------------------------------------\n" "\t---------------------------------------\n"
"\t| OP-CODE |\t\tADDRESS\t |\n" "\t| OP-CODE |\t\tADDRESS\t |\n"
"\t--------------------------------------\n\n"); "\t---------------------------------------\n\n");
printf("This machine has the following registers:\n" printf("This machine has the following registers:\n"
"16 BIT Instruction Register(4 BIT OP, 12 BIT Adr)\n" "16 BIT Instruction Register(4 BIT OP, 12 BIT Adr)\n"
"16 BIT Accumulator\n" "16 BIT Accumulator\n"
"12 BIT Program Counter\n"); "12 BIT Program Counter\n\n");
printf("Example: 0001000000001010 on RAM position 0\n"
"0001 means: LOAD the content of ADDRESS 000000001010 into the ACCU\n\n");
printf("This is an interpreter for the Koopman_TOY_CPU by\n"
"\tmichael.krause@uni-leipzig.de\n");
} }
//gibt Anzahl der erfolgreich gelesenen Maschinenworte zurück(-1 im Fehlerfall). //gibt Anzahl der erfolgreich gelesenen Maschinenworte zurück(-1 im Fehlerfall).
@ -117,7 +121,6 @@ int get2compl(uint16_t value)
bool execute(uint8_t op_code, int data_addr, uint16_t *ram) // jump if true bool execute(uint8_t op_code, int data_addr, uint16_t *ram) // jump if true
{ {
//Vorsicht: bool ops bei sigend int typs sind nach c99 undefiniert !
static uint16_t accu; static uint16_t accu;
bool jump=false; bool jump=false;