Initial cpu and instruction parsing

2025-01-30 16:27:27 -07:00
parent 945b82a3ca
commit cd588671c4
12 changed files with 303 additions and 11 deletions
--- a/include/instructions.h
+++ b/include/instructions.h
@ -0,0 +1,111 @@
+#pragma once
+#include <common.h>
+
+typedef enum {
+    AM_R_D16,
+    AM_R_R,
+    AM_MR_R,
+    AM_R,
+    AM_R_D8,
+    AM_R_MR,
+    AM_R_HLI,
+    AM_R_HLD,
+    AM_HLI_R,
+    AM_HLD_R,
+    AM_R_A8,
+    AM_A8_R,
+    AM_HL_SPR,
+    AM_D16,
+    AM_D8,
+    AM_IMP,
+    AM_D16_R,
+    AM_MR_D8,
+    AM_MR,
+    AM_A16_R,
+    AM_R_A16
+} addr_mode;
+
+typedef enum {
+    RT_NONE,
+    RT_A,
+    RT_F,
+    RT_B,
+    RT_C,
+    RT_D,
+    RT_E,
+    RT_H,
+    RT_L,
+    RT_AF,
+    RT_BC,
+    RT_DE,
+    RT_HL,
+    RT_SP,
+    RT_PC
+} reg_type;
+
+typedef enum {
+    IN_NONE,
+    IN_NOP,
+    IN_LD,
+    IN_INC,
+    IN_DEC,
+    IN_RLCA,
+    IN_ADD,
+    IN_RRCA,
+    IN_STOP,
+    IN_RLA,
+    IN_JR,
+    IN_RRA,
+    IN_DAA,
+    IN_CPL,
+    IN_SCF,
+    IN_CCF,
+    IN_HALT,
+    IN_ADC,
+    IN_SUB,
+    IN_SBC,
+    IN_AND,
+    IN_XOR,
+    IN_OR,
+    IN_CP,
+    IN_POP,
+    IN_JP,
+    IN_PUSH,
+    IN_RET,
+    IN_CB,
+    IN_CALL,
+    IN_RETI,
+    IN_LDH,
+    IN_JPHL,
+    IN_DI,
+    IN_EI,
+    IN_RST,
+    IN_ERR,
+    //CB instructions...
+    IN_RCL,
+    IN_RRC,
+    IN_RL,
+    IN_RR,
+    IN_SLA,
+    IN_SRA,
+    IN_SWAP,
+    IN_SRL,
+    IN_BIT,
+    IN_RES,
+    IN_SET
+} in_type;
+
+typedef enum {
+    CT_NONE, CT_NZ, CT_Z, CT_NC, CT_C
+} cond_type;
+
+typedef struct {
+    in_type type;
+    addr_mode mode;
+    reg_type reg_1;
+    reg_type reg_2;
+    cond_type cond;
+    u8 param;
+} instruction;
+
+instruction *instruction_by_opcode(u8 opcode);