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define opcodes

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define opcodes, add switch command for every opcode and default case, removed makefile
This commit is contained in:
Erick
2022-01-29 22:37:42 +01:00
parent 5b434febe8
commit 91602c3783
3 changed files with 81 additions and 30 deletions
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.gitignore
+3
View File
@@ -50,3 +50,6 @@ modules.order
Module.symvers
Mkfile.old
dkms.conf
#folders
.git/
MAKEFILE
-22
View File
@@ -1,22 +0,0 @@
TARGET ?= a.out
SRC_DIRS ?= ./src
SRCS := $(shell find $(SRC_DIRS) -name *.cpp -or -name *.c -or -name *.s)
OBJS := $(addsuffix .o,$(basename $(SRCS)))
DEPS := $(OBJS:.o=.d)
INC_DIRS := $(shell find $(SRC_DIRS) -type d)
INC_FLAGS := $(addprefix -I,$(INC_DIRS))
CPPFLAGS ?= $(INC_FLAGS) -MMD -MP
$(TARGET): $(OBJS)
$(CC) $(LDFLAGS) $(OBJS) -o $@ $(LOADLIBES) $(LDLIBS)
.PHONY: clean
clean:
$(RM) $(TARGET) $(OBJS) $(DEPS)
-include $(DEPS)
# if "make" does not work on shell, try "make -d"
tyvm.c
+78 -8
View File
@@ -4,8 +4,28 @@
Written by Erick Ahmed, 2022
*/
#include <stdint.h>
#include <stdint.h>>
#define TRUE 1
#define FALSE 0
#define BR
#define ADD
#define LD
#define ST
#define JSR
#define AND
#define LDR
#define STR
#define RTI
#define NOT
#define LDI
#define STI
#define JMP
#define RES
#define LEA
#define TRAP
#define BAD_OPCODE
/* Initializing 10 registers of which:
8 general purpose, 1 program counter, 1 conditional */
@@ -57,15 +77,65 @@ enum flags {
int main(int argc, const char* argv[]) {
enum registers RG;
enum opcodes OP;
reg[RG_COND] = FL_ZRO;
reg[RG_PC] = 0x3000; //0x3000 is default
reg[RG_PC] = 0x3000; //0x3000 is default load address
int running = TRUE;
while(running) {
uint16_t instr = mem_read(reg[RG_PC]++);
uint16_t op = instr >> 12;
switch (op) {
case OP_BR:
{BR};
break;
case OP_ADD:
{ADD};
break;
case OP_LD:
{LD};
break;
case OP_ST:
{ST}
break;
case OP_JSR:
{JSR};
break;
case OP_AND:
{AND};
break;
case OP_LDR:
{LDR};
break;
case OP_STR:
{STR};
break;
case OP_NOT:
{NOT};
break;
case OP_LDI:
{LDI};
break;
case OP_STI:
{STI};
break;
case OP_JMP:
{JMP};
break;
case OP_LEA:
{LEA};
break;
case OP_TRAP:
{TRAP};
break;
case OP_RES:
case OP_RTI:
default:
{BAD_OPCODE}
break;
};
}
}