otomatalabs/furnace
8
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

implement YMF276-LLE core

Browse source 
thanks LTVA
This commit is contained in:
tildearrow 2024-03-15 20:16:29 -05:00
parent 3512591fd1
commit 892ee12d91
5 changed files with 337 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

14
extern/YMF276-LLE/fmopn2.c vendored
View file

@ -2066,6 +2066,8 @@ void FMOPN2_YMF276Accumulator1(fmopn2_t *chip)
int acc_l = 0;
int acc_r = 0;
chip->osc_out = 0;
for (i = 0; i < 14; i++)
accm += ((chip->ch_accm[i][1] >> 5) & 1) << i;
if (chip->alg_output && !test_dac)
@ -2106,12 +2108,12 @@ void FMOPN2_YMF276Accumulator1(fmopn2_t *chip)
chip->fsm_op1_sel_l3[0] = chip->fsm_op1_sel;
if (sel_dac)
out |= chip->mode_dac_data[1] << 6;
chip->osc_out |= chip->mode_dac_data[1] << 6;
if (sel_fm)
out |= accm;
chip->osc_out |= accm;
if (out & 0x2000)
out |= 0x1c000;
if (chip->osc_out & 0x2000)
chip->osc_out |= 0x1c000;
for (i = 0; i < 2; i++)
pan |= (((chip->chan_pan[i][1] >> 5) & 1) ^ 1) << i;
@ -2130,8 +2132,8 @@ void FMOPN2_YMF276Accumulator1(fmopn2_t *chip)
acc_r = chip->ch_accm_r[1];
}
chip->ch_accm_l[0] = acc_l + ((pan & 2) != 0 ? out : 0);
chip->ch_accm_r[0] = acc_r + ((pan & 1) != 0 ? out : 0);
chip->ch_accm_l[0] = acc_l + ((pan & 2) != 0 ? chip->osc_out : 0);
chip->ch_accm_r[0] = acc_r + ((pan & 1) != 0 ? chip->osc_out : 0);
}
void FMOPN2_YMF276Accumulator2(fmopn2_t *chip)

3
extern/YMF276-LLE/fmopn2.h vendored
View file

@ -72,6 +72,9 @@ typedef struct {
int out_l;
int out_r;
// added by LTVA for Furnace tracker per-channel oscilloscopes!
int osc_out;
// io
int write_addr_trig;
int write_addr_trig_sync;