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scsp: improve dsp register definitions

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This commit is contained in:
Zack Buhman 2023-05-17 13:54:35 +00:00
parent ae4bfec20a
commit 89487ec023
1 changed files with 33 additions and 11 deletions
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28
scsp.h
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@ -93,15 +93,35 @@ static_assert((offsetof (struct scsp_ctrl, STATUS)) == 0x08);
static_assert((offsetof (struct scsp_ctrl, DMEA)) == 0x12);
static_assert((offsetof (struct scsp_ctrl, MCIRE)) == 0x2e);
typedef struct scsp_dsp_lh {
reg16 L;
reg16 H;
} scsp_dsp_lh;
typedef struct scsp_dsp_internal {
scsp_dsp_lh TEMP[128];
scsp_dsp_lh MEMS[32];
scsp_dsp_lh MIXS[16];
reg16 EFREG[16];
reg16 _res1[2];
} scsp_dsp_internal;
static_assert((sizeof (struct scsp_dsp_internal)) == 0x2e4);
static_assert((offsetof (struct scsp_dsp_internal, EFREG)) == 0x2c0);
typedef struct scsp_dsp {
reg16 COEF[64];
reg16 MADRS[32];
reg16 _res[0x40 / 2];
reg16 micro[512];
reg16 internal[370];
struct {
reg16 MPRO[4];
} STEP[128];
scsp_dsp_internal internal;
} scsp_dsp;
static_assert((sizeof (struct scsp_dsp)) == 0x7e4);
static_assert((offsetof (struct scsp_dsp, STEP)) == 0x100);
static_assert((offsetof (struct scsp_dsp, internal)) == 0x500);
typedef struct scsp_reg {
scsp_slot slot[32];
@ -163,7 +183,9 @@ enum loop_bits {
LOOP__KYONEX = (1 << 12), // (KX) execute KEY_ON
LOOP__KYONB = (1 << 11), // (KB) record KEY_ON, KEY_OFF
LOOP__SBCTL = (0b00 << 9), // source bit control
LOOP__SSCTL = ( 0b00 << 7 ), // sound source control
LOOP__SSCTL__DRAM = (0b00 << 7), // sound source control
LOOP__SSCTL__NOISE = (0b01 << 7), // sound source control
LOOP__SSCTL__ZERO = (0b10 << 7), // sound source control
LOOP__LPCTL__OFF = (0b00 << 5), // loop control
LOOP__LPCTL__NORMAL = (0b01 << 5), // loop control
LOOP__LPCTL__REVERSE = (0b10 << 5), // loop control