diff options
Diffstat (limited to 'src/ymh15/mips_cpu_ymh15.hpp')
| -rw-r--r-- | src/ymh15/mips_cpu_ymh15.hpp | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/src/ymh15/mips_cpu_ymh15.hpp b/src/ymh15/mips_cpu_ymh15.hpp index 1e2900a..2a95db1 100644 --- a/src/ymh15/mips_cpu_ymh15.hpp +++ b/src/ymh15/mips_cpu_ymh15.hpp @@ -1,8 +1,11 @@ #ifndef MIPS_CPU_YMH15_H #define MIPS_CPU_YMH15_H +#include <cstdio> + #include "../../include/mips.h" +// defines the location of the things in the array var #define OPCODE 0 #define REG_S 1 #define REG_T 2 @@ -12,15 +15,24 @@ #define IMM 6 #define MEM 7 -mips_error read_instruction(mips_cpu_h state); +// executes an instruction by first decoding it and sending the right +// variables to the different functions to be correctly interpreted mips_error exec_instruction(mips_cpu_h state, uint32_t inst); mips_error exec_R(mips_cpu_h state, uint32_t var[8]); mips_error exec_J(mips_cpu_h state, uint32_t var[8]); mips_error exec_I(mips_cpu_h state, uint32_t var[8]); -mips_error add_sub(mips_cpu_h state, uint32_t var[8], int32_t add_sub); -mips_error bitwise(mips_cpu_h state, uint32_t var[8]); +// performs addition and subtraction +mips_error add_sub(mips_cpu_h state, uint32_t var[8], int32_t add_sub, + int32_t imm); +// performs bitwise operations +mips_error bitwise(mips_cpu_h state, uint32_t var[8], unsigned imm); + +mips_error branch(mips_cpu_h state, uint32_t var[8]); + +mips_error jump(mips_cpu_h state, uint32_t var[8], uint8_t link); -uint8_t get_msb(uint32_t word); +mips_error load(mips_cpu_h state, uint32_t var[8]); +mips_error store(mips_cpu_h state, uint32_t var[8]); #endif // MIPS_CPU_YMH15_H |