Revert adding AND/NOT

1 files changed, 18 insertions, 16 deletions

diff --git a/tpu.c b/tpu.c
index e827cdd..22b6039 100644
--- a/tpu.c
+++ b/tpu.c
@@ -16,8 +16,8 @@ const char *status_reprs[] = {
 };
 
 const char *inst_reprs[] = {
-	"NOP", "MOV", "SWP", "SAV", "ADD", "SUB", "NEG",
-	"NOT", "AND", "JMP", "JEZ", "JNZ", "JGZ", "JLZ", "JRO"
+	"NOP", "MOV", "SWP", "SAV", "ADD", "SUB",
+	"NEG", "JMP", "JEZ", "JNZ", "JGZ", "JLZ", "JRO"
 };
 
 const char *op_reprs[] = {
@@ -277,19 +277,19 @@ tpu_set_inst(struct tpu *tpu, uint8_t pc, enum tpu_inst_type inst_type,
 	inst->ops[1] = op2;
 
 	switch (inst->type) {
-	case INST_NOP: case INST_SAV: case INST_SWP:
-	case INST_NEG: case INST_NOT:
+	case INST_NOP: case INST_SAV:
+	case INST_SWP: case INST_NEG:
 		if (inst->opcnt != 0) return false;
 		break;
-	case INST_ADD: case INST_SUB: case INST_AND:
+	case INST_ADD: case INST_SUB:
 		if (inst->opcnt != 1) return false;
-		if (inst->opcnt == OP_LABEL) return false;
 		break;
 	 case INST_JRO:
 		if (inst->opcnt != 1) return false;
 		if (inst->ops[0].type != OP_LIT) return false;
 		break;
 	case INST_JMP: case INST_JEZ: case INST_JNZ:
+	case INST_JGZ: case INST_JLZ:
 		if (inst->opcnt != 1) return false;
 		if (inst->ops[0].type != OP_LABEL) return false;
 		break;
@@ -477,16 +477,6 @@ tpu_exec(struct tpu *tpu, struct tpu_inst *inst)
 		tpu->acc = -tpu->acc;
 		tpu->pc += 1;
 		return STATUS_RUN;
-	case INST_NOT:
-		tpu->acc = ~tpu->acc;
-		tpu->pc += 1;
-		return STATUS_RUN;
-	case INST_AND:
-		val = tpu_exec_get(tpu, &inst->ops[0]);
-		if (val < 0) return STATUS_READ;
-		tpu->acc &= (uint8_t) val;
-		tpu->pc += 1;
-		return STATUS_RUN;
 	case INST_JMP:
 		tpu_jmp_label(tpu, inst->ops[0].val.label);
 		return STATUS_RUN;
@@ -502,6 +492,18 @@ tpu_exec(struct tpu *tpu, struct tpu_inst *inst)
 		else
 			tpu->pc += 1;
 		return STATUS_RUN;
+	case INST_JGZ:
+		if (tpu->acc > 0)
+			tpu_jmp_label(tpu, inst->ops[0].val.label);
+		else
+			tpu->pc += 1;
+		return STATUS_RUN;
+	case INST_JLZ:
+		if (tpu->acc < 0)
+			tpu_jmp_label(tpu, inst->ops[0].val.label);
+		else
+			tpu->pc += 1;
+		return STATUS_RUN;
 	case INST_JRO:
 		tpu->pc += inst->ops[0].val.lit;
 		if (tpu->pc >= tpu->inst_cnt) tpu->pc = 0;