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| author | Aryadev Chavali <aryadev@aryadevchavali.com> | 2023-10-15 21:02:40 +0100 |
|---|---|---|
| committer | Aryadev Chavali <aryadev@aryadevchavali.com> | 2023-10-15 21:03:27 +0100 |
| commit | 56c545e7c9b9074a5c5e621b57c87e9e6556978b (patch) | |
| tree | a01dc44bfbc6fa8902dd8f83fd6c029844a9f6a9 | |
| parent | 33aa62634af2bddb64b678c065aa597756feb14d (diff) | |
| download | ovm-56c545e7c9b9074a5c5e621b57c87e9e6556978b.tar.gz ovm-56c545e7c9b9074a5c5e621b57c87e9e6556978b.tar.bz2 ovm-56c545e7c9b9074a5c5e621b57c87e9e6556978b.zip | |
Added opcodes for MOV and ability for instructions to hold registers
Pretty simple implementation
| -rw-r--r-- | src/inst.h | 17 |
1 files changed, 16 insertions, 1 deletions
@@ -23,15 +23,21 @@ typedef enum OP_PUSH_WORD = 0b0101, OP_PUSH_FLOAT = 0b1001, + OP_MOV_BYTE = 0b0010, + OP_MOV_WORD = 0b0110, + OP_MOV_FLOAT = 0b1010, + OP_HALT, } opcode_t; -#define OPCODE_IS_PUSH(OPCODE) (((OPCODE)&1) == 1) +#define OPCODE_IS_PUSH(OPCODE) (((OPCODE)&0b1) == 0b1) +#define OPCODE_IS_MOV(OPCODE) (((OPCODE)&0b10) == 0b10) typedef struct { opcode_t opcode; data_t operand; + word reg; } inst_t; #define INST_BPUSH(BYTE) \ @@ -43,4 +49,13 @@ typedef struct #define INST_FPUSH(FLOAT) \ ((inst_t){.opcode = OP_PUSH_FLOAT, .operand = DFLOAT(FLOAT)}) +#define INST_BMOV(BYTE, REG) \ + ((inst_t){.opcode = OP_MOV_BYTE, .operand = DBYTE(BYTE), .reg = (REG)}) + +#define INST_WMOV(WORD, REG) \ + ((inst_t){.opcode = OP_MOV_WORD, .operand = DWORD(WORD), .reg = (REG)}) + +#define INST_FMOV(FLOAT, REG) \ + ((inst_t){.opcode = OP_MOV_FLOAT, .operand = DFLOAT(FLOAT), .reg = (REG)}) + #endif |