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Implementing disassembler interface

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GuyPerfect
2020-08-09 10:46:29 -05:00
parent 76c95b0523
commit f8f4005e02
6 changed files with 441 additions and 37 deletions
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src/core/cpu.c
+6 -6
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@@ -27,13 +27,13 @@ static const int8_t LOOKUP_OPCODE[] = {
VUE_SHL_REG, 1, VUE_SHR_REG, 1, VUE_JMP , 1, VUE_SAR_REG, 1,
VUE_MUL , 1, VUE_DIV , 1, VUE_MULU , 1, VUE_DIVU , 1,
VUE_OR , 1, VUE_AND , 1, VUE_XOR , 1, VUE_NOT , 1,
-VUE_MOV_IMM, 2,-VUE_ADD_IMM, 2, VUE_SETF , 2,-VUE_CMP_IMM, 2,
VUE_MOV_IMM,-2, VUE_ADD_IMM,-2, VUE_SETF , 2, VUE_CMP_IMM,-2,
VUE_SHL_IMM, 2, VUE_SHR_IMM, 2, VUE_CLI , 2, VUE_SAR_IMM, 2,
VUE_TRAP , 2, VUE_RETI , 2, VUE_HALT , 2, VUE_ILLEGAL, 0,
VUE_LDSR , 2, VUE_STSR , 2, VUE_SEI , 2, BITSTRING , 2,
VUE_BCOND , 3, VUE_BCOND , 3, VUE_BCOND , 3, VUE_BCOND , 3,
VUE_BCOND , 3, VUE_BCOND , 3, VUE_BCOND , 3, VUE_BCOND , 3,
-VUE_MOVEA , 5,-VUE_ADDI , 5, VUE_JR , 4, VUE_JAL , 4,
VUE_MOVEA ,-5, VUE_ADDI ,-5, VUE_JR , 4, VUE_JAL , 4,
VUE_ORI , 5, VUE_ANDI , 5, VUE_XORI , 5, VUE_MOVHI , 5,
VUE_LD_B , 6, VUE_LD_H , 6, VUE_ILLEGAL, 0, VUE_LD_W , 6,
VUE_ST_B , 6, VUE_ST_H , 6, VUE_ILLEGAL, 0, VUE_ST_W , 6,
@@ -71,10 +71,10 @@ static void cpuDecode(VUE_INST *inst, int32_t bits) {
/* Configure instance fields */
inst->bits = bits;
inst->opcode = bits >> 26 & 63;
x = inst->opcode << 1 | 1;
extend = LOOKUP_OPCODE[x];
inst->format = LOOKUP_OPCODE[x + 1];
inst->id = extend < 0 ? -extend : extend;
x = inst->opcode << 1;
inst->id = LOOKUP_OPCODE[x ];
extend = LOOKUP_OPCODE[x + 1];
inst->format = extend < 0 ? -extend : extend;
inst->size = inst->format < 4 ? 2 : 4;
/* Decode by format */