diff options
Diffstat (limited to 'src/devices/cpu/dsp56k/tables.h')
-rw-r--r-- | src/devices/cpu/dsp56k/tables.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/devices/cpu/dsp56k/tables.h b/src/devices/cpu/dsp56k/tables.h new file mode 100644 index 00000000000..f0bb88f21d8 --- /dev/null +++ b/src/devices/cpu/dsp56k/tables.h @@ -0,0 +1,94 @@ +// license:BSD-3-Clause +// copyright-holders:Andrew Gardner +#ifndef __DSP56K_OPS_H__ +#define __DSP56K_OPS_H__ + +#include <stdio.h> +#include <stdlib.h> + +#include "emu.h" +#include "dsp56k.h" + +namespace DSP56K +{ +#define BITSn(CUR,MASK) (dsp56k_op_maskn(CUR,MASK)) + +enum bitsModified {BM_NONE = 0x0, BM_LOW = 0x1, BM_MIDDLE = 0x2, BM_HIGH = 0x4}; + +enum bfShift {BBB_UPPER, BBB_MIDDLE, BBB_LOWER, BBB_INVALID}; +enum reg_id {iX, iX0, iX1, + iY, iY0, iY1, + iA, iA0, iA1, iA2, + iB, iB0, iB1, iB2, + iR0, iR1, iR2, iR3, + iN0, iN1, iN2, iN3, + iM0, iM1, iM2, iM3, + iLC, iSR, iOMR, iSP, iSSH, iSSL, iLA, iMR, iCCR, + iF, iFHAT, + iINVALID, iWEIRD}; + +enum op_mnem {oCC, oGE, oNE, oPL, + oNN, oEC, oLC, oGT, + oCS, oLT, oEQ, oMI, + oNR, oES, oLS, oLE, + oSS, oSU, oUU, oINVALID}; + + +bfShift decode_BBB_table(UINT16 BBB); +void decode_cccc_table(const UINT16 cccc, op_mnem& mnemonic); +void decode_DDDDD_table(const UINT16 DDDDD, reg_id& SD); +void decode_DD_table(const UINT16 DD, reg_id& SD); +void decode_DDF_table(const UINT16 DD, const UINT16 F, reg_id& S, reg_id& D); +void decode_EE_table(const UINT16 EE, reg_id& D); +void decode_F_table(const UINT16 F, reg_id& SD); +void decode_h0hF_table(const UINT16 h0h, UINT16 F, reg_id& S, reg_id& D); +void decode_HH_table(const UINT16 HH, reg_id& SD); +void decode_HHH_table(const UINT16 HHH, reg_id& SD); +void decode_IIIIx_table(const UINT16 IIII, const UINT16 x, reg_id& S, reg_id& D); +void decode_JJJF_table(const UINT16 JJJ, const UINT16 F, reg_id& S, reg_id& D); +void decode_JJF_table(const UINT16 JJ, const UINT16 F, reg_id& S, reg_id& D); +void decode_JF_table(const UINT16 J, const UINT16 F, reg_id& S, reg_id& D); +void decode_kSign_table(const UINT16 k, std::string& plusMinus); +void decode_KKK_table(const UINT16 KKK, reg_id& D1, reg_id& D2); +void decode_NN_table(UINT16 NN, reg_id& ret); +void decode_TT_table(UINT16 TT, reg_id& ret); +void decode_QQF_table(const UINT16 QQ, const UINT16 F, reg_id& S1, reg_id& S2, reg_id& D); +void decode_QQF_special_table(const UINT16 QQ, const UINT16 F, reg_id& S1, reg_id& S2, reg_id& D); +void decode_QQQF_table(const UINT16 QQQ, const UINT16 F, reg_id& S1, reg_id& S2, reg_id& D); +void decode_RR_table(UINT16 RR, reg_id& ret); +void decode_rr_table(UINT16 rr, reg_id& ret); +void decode_s_table(const UINT16 s, op_mnem& arithmetic); +void decode_ss_table(const UINT16 ss, op_mnem& arithmetic); +void decode_uuuuF_table(const UINT16 uuuu, const UINT16 F, std::string& arg, reg_id& S, reg_id& D); +void decode_Z_table(const UINT16 Z, std::string& ea); + +void assemble_ea_from_m_table(const UINT16 m, const int n, std::string& ea); +void assemble_eas_from_mm_table(UINT16 mm, int n1, int n2, std::string& ea1, std::string& ea2); +void assemble_ea_from_MM_table(UINT16 MM, int n, std::string& ea); +void assemble_ea_from_q_table(UINT16 q, int n, std::string& ea); +void assemble_ea_from_t_table(UINT16 t, UINT16 val, std::string& ea); +void assemble_ea_from_z_table(UINT16 z, int n, std::string& ea); +void assemble_D_from_P_table(UINT16 P, UINT16 ppppp, std::string& D); +void assemble_arguments_from_W_table(UINT16 W, char ma, const reg_id& SD, const std::string& ea, std::string& S, std::string& D); +void assemble_arguments_from_W_table(UINT16 W, char ma, const std::string& SD, const std::string& ea, std::string& S, std::string& D); +void assemble_reg_from_W_table(UINT16 W, char ma, const reg_id& SD, const INT8 xx, std::string& S, std::string& D); +void assemble_address_from_IO_short_address(UINT16 pp, std::string& ea); + +INT8 get_6_bit_signed_value(UINT16 bits); + +// Helpers +UINT16 dsp56k_op_maskn(UINT16 cur, UINT16 mask); + +bool registerOverlap(const reg_id& r0, const size_t bmd, const reg_id& r1); + +UINT16 regValue16(dsp56k_core* cpustate, const reg_id& reg); +void setReg16(dsp56k_core* cpustate, const UINT16& value, const reg_id& reg); + +std::string regIdAsString(const reg_id& regId); +std::string opMnemonicAsString(const op_mnem& mnem); +reg_id stringAsRegID(const std::string& str); +UINT8 regIDAsNum(const reg_id& regId); + + +} +#endif |