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version 1.4, 2003/10/25 09:08:24
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version 1.8, 2011/02/04 14:43:55
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Line 1
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Line 1
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FMDIV_BITS equ 8 |
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FMDIV_ENT equ (1 << FMDIV_BITS) |
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FMVOL_SFTBIT equ 4 |
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SIN_BITS equ 11 |
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EVC_BITS equ 10 |
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ENV_BITS equ 16 |
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KF_BITS equ 6 |
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FREQ_BITS equ 21 |
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ENVTBL_BIT equ 14 |
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SINTBL_BIT equ 14 |
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TL_BITS equ (FREQ_BITS+2) |
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OPM_OUTSB equ (TL_BITS + 2 - 16) |
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SIN_ENT equ (1 << SIN_BITS) |
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EVC_ENT equ (1 << EVC_BITS) |
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EC_ATTACK equ 0 |
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EC_DECAY equ (EVC_ENT << ENV_BITS) |
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EC_OFF equ ((2 * EVC_ENT) << ENV_BITS) |
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EM_ATTACK equ 4 |
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EM_DECAY1 equ 3 |
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EM_DECAY2 equ 2 |
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EM_RELEASE equ 1 |
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EM_OFF equ 0 |
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| struc slot_t |
struc slot_t |
| .detune1 resd 1 ; 00 |
.detune1 resd 1 ; 00 |
| .totallevel resd 1 ; 04 |
.totallevel resd 1 ; 04 |
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Line 21
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Line 50
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| .env_inc_decay1 resd 1 ; 3c |
.env_inc_decay1 resd 1 ; 3c |
| .env_inc_decay2 resd 1 ; 40 |
.env_inc_decay2 resd 1 ; 40 |
| .env_inc_rel resd 1 ; 44 |
.env_inc_rel resd 1 ; 44 |
| .size |
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| endstruc |
endstruc |
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| struc ch_t |
struc ch_t |
| .slot resb (slot_t.size * 4) |
.slot resb (slot_t_size * 4) |
| .algorithm resb 1 |
.algorithm resb 1 |
| .feedback resb 1 |
.feedback resb 1 |
| .playing resb 1 |
.playing resb 1 |
| resb 1 |
.outslot resb 1 |
| .op1fb resd 1 |
.op1fb resd 1 |
| .connect1 resd 1 |
.connect1 resd 1 |
| .connect3 resd 1 |
.connect3 resd 1 |
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Line 43
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Line 71
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| .extop resb 1 |
.extop resb 1 |
| .stereo resb 1 |
.stereo resb 1 |
| resb 1 |
resb 1 |
| .size |
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| endstruc |
endstruc |
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| struc opngen_t |
struc opngen_t |
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Line 66
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Line 93
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| .vr_en resd 1 |
.vr_en resd 1 |
| .vr_l resd 1 |
.vr_l resd 1 |
| .vr_r resd 1 |
.vr_r resd 1 |
| endstruc |
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| FMDIV_BITS equ 8 |
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| FMDIV_ENT equ (1 << FMDIV_BITS) |
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| FMVOL_SFTBIT equ 4 |
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| SIN_BITS equ 11 |
.sintable resd SIN_ENT |
| EVC_BITS equ 10 |
.envtable resd EVC_ENT |
| ENV_BITS equ 16 |
.envcurve resd (EVC_ENT*2 + 1) |
| KF_BITS equ 6 |
endstruc |
| FREQ_BITS equ 20 |
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| ENVTBL_BIT equ 14 |
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| SINTBL_BIT equ 14 |
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| TL_BITS equ (FREQ_BITS+2) |
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| OPM_OUTSB equ (TL_BITS + 2 - 16) |
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| SIN_ENT equ (1 << SIN_BITS) |
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| EVC_ENT equ (1 << EVC_BITS) |
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| EC_ATTACK equ 0 |
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| EC_DECAY equ (EVC_ENT << ENV_BITS) |
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| EC_OFF equ ((2 * EVC_ENT) << ENV_BITS) |
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| EM_ATTACK equ 4 |
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| EM_DECAY1 equ 3 |
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| EM_DECAY2 equ 2 |
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| EM_RELEASE equ 1 |
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| EM_OFF equ 0 |
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| section .text |
section .text |
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Line 105 section .text
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Line 107 section .text
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| extern _opncfg |
extern _opncfg |
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| extern _sinshift |
extern _sinshift |
| extern _sintable |
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| extern _envshift |
extern _envshift |
| extern _envtable |
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| extern _env_curve |
ENVCURVE equ (_opncfg + opncfg_t.envcurve) |
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SINTABLE equ (_opncfg + opncfg_t.sintable) |
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ENVTABLE equ (_opncfg + opncfg_t.envtable) |
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| global @opngen_getpcm@12 |
global @opngen_getpcm@12 |
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Line 119 section .text
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Line 122 section .text
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| shr eax, (FREQ_BITS - SIN_BITS) |
shr eax, (FREQ_BITS - SIN_BITS) |
| and eax, (SIN_ENT - 1) |
and eax, (SIN_ENT - 1) |
| mov cl, [_sinshift + eax] |
mov cl, [_sinshift + eax] |
| mov eax, [_sintable + eax*4] |
mov eax, [SINTABLE + eax*4] |
| add cl, [_envshift + edx] |
add cl, [_envshift + edx] |
| imul eax, [_envtable + edx*4] |
imul eax, [ENVTABLE + edx*4] |
| sar eax, cl |
sar eax, cl |
| %endmacro |
%endmacro |
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Line 135 section .text
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Line 138 section .text
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| %2: mov [edi + slot_t.env_cnt], eax |
%2: mov [edi + slot_t.env_cnt], eax |
| shr eax, ENV_BITS |
shr eax, ENV_BITS |
| mov edx, [edi + slot_t.totallevel] |
mov edx, [edi + slot_t.totallevel] |
| sub edx, [_env_curve + eax*4] |
sub edx, [ENVCURVE + eax*4] |
| %endmacro |
%endmacro |
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| %macro setenv 2 |
%macro setenv 3 |
| %1: mov dl, [edi + slot_t.env_mode] |
%1: mov dl, [edi + slot_t.env_mode] |
| dec dl |
dec dl |
| je short %%setrr |
je short %%setrr |
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Line 164 section .text
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Line 167 section .text
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| %%setrr: mov byte [edi + slot_t.env_mode], EM_OFF |
%%setrr: mov byte [edi + slot_t.env_mode], EM_OFF |
| %%setd2: mov dword [edi + slot_t.env_end], EC_OFF + 1 |
%%setd2: mov dword [edi + slot_t.env_end], EC_OFF + 1 |
| and dword [edi + slot_t.env_inc], byte 0 |
and dword [edi + slot_t.env_inc], byte 0 |
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and byte [esi + ch_t.playing], ~(%3) |
| mov eax, EC_OFF |
mov eax, EC_OFF |
| jmp near %2 |
jmp near %2 |
| %endmacro |
%endmacro |
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Line 173 section .text
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Line 177 section .text
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| @opngen_getpcm@12: |
@opngen_getpcm@12: |
| cmp dword [esp+4], byte 0 |
cmp dword [esp+4], byte 0 |
| je near og_noupdate |
je near og_noupdate |
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cmp dword [_opngen + opngen_t.playing], byte 0 |
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je near og_noupdate |
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| push ebx |
push ebx |
| push esi |
push esi |
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Line 193 og_fmout_st: mov eax, ebx
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Line 199 og_fmout_st: mov eax, ebx
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| sub ebx, eax |
sub ebx, eax |
| imul eax, [_opngen + opngen_t.outdr] |
imul eax, [_opngen + opngen_t.outdr] |
| mov [esp + OPN_SAMPR], eax |
mov [esp + OPN_SAMPR], eax |
| og_fmout_lp: xor eax, eax |
og_fmout_lp: mov [_opngen + opngen_t.calcremain], ebx |
| mov [_opngen + opngen_t.calcremain], ebx |
and dword [_opngen + opngen_t.playing], byte 0 |
| mov [_opngen + opngen_t.outdl], eax |
and dword [_opngen + opngen_t.outdl], byte 0 |
| mov [_opngen + opngen_t.outdc], eax |
and dword [_opngen + opngen_t.outdc], byte 0 |
| mov [_opngen + opngen_t.outdr], eax |
and dword [_opngen + opngen_t.outdr], byte 0 |
| mov ch, [_opngen + opngen_t.playchannels] |
mov ch, [_opngen + opngen_t.playchannels] |
| mov edi, _opnch |
mov esi, _opnch |
| og_calcch_lp: xor eax, eax |
og_calcch_lp: mov cl, [esi + ch_t.outslot] |
| mov [_opngen + opngen_t.feedback2], eax |
test cl, [esi + ch_t.playing] |
| mov [_opngen + opngen_t.feedback3], eax |
je near og_calcch_nt |
| mov [_opngen + opngen_t.feedback4], eax |
and dword [_opngen + opngen_t.feedback2], byte 0 |
| mov esi, edi |
and dword [_opngen + opngen_t.feedback3], byte 0 |
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and dword [_opngen + opngen_t.feedback4], byte 0 |
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mov edi, esi |
| calcenv envcalc1, envret1 ; slot1 calculate |
calcenv envcalc1, envret1 ; slot1 calculate |
| jl near og_calcslot3 |
jl near og_calcslot3 |
| mov cl, [esi + ch_t.feedback] |
mov cl, [esi + ch_t.feedback] |
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Line 228 og_algchk: cmp byte [esi + ch_t.algori
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Line 236 og_algchk: cmp byte [esi + ch_t.algori
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| jmp short og_calcslot3 |
jmp short og_calcslot3 |
| og_calcalg5: mov ebx, [esi + ch_t.connect1] ; case ALG != 5 |
og_calcalg5: mov ebx, [esi + ch_t.connect1] ; case ALG != 5 |
| add [ebx], eax |
add [ebx], eax |
| og_calcslot3: add edi, byte slot_t.size ; slot3 calculate |
og_calcslot3: add edi, byte slot_t_size ; slot3 calculate |
| calcenv envcalc2, envret2 |
calcenv envcalc2, envret2 |
| jl short og_calcslot2 |
jl short og_calcslot2 |
| mov eax, [_opngen + opngen_t.feedback2] |
mov eax, [_opngen + opngen_t.feedback2] |
| op_out |
op_out |
| mov ebx, [esi + ch_t.connect2] |
mov ebx, [esi + ch_t.connect2] |
| add [ebx], eax |
add [ebx], eax |
| og_calcslot2: add edi, byte slot_t.size ; slot2 calculate |
og_calcslot2: add edi, byte slot_t_size ; slot2 calculate |
| calcenv envcalc3, envret3 |
calcenv envcalc3, envret3 |
| jl short og_calcslot4 |
jl short og_calcslot4 |
| mov eax, [_opngen + opngen_t.feedback3] |
mov eax, [_opngen + opngen_t.feedback3] |
| op_out |
op_out |
| mov ebx, [esi + ch_t.connect3] |
mov ebx, [esi + ch_t.connect3] |
| add [ebx], eax |
add [ebx], eax |
| og_calcslot4: add edi, byte slot_t.size ; slot4 calculate |
og_calcslot4: add edi, byte slot_t_size ; slot4 calculate |
| calcenv envcalc4, envret4 |
calcenv envcalc4, envret4 |
| jl short og_calcsloted |
jl short og_calcsloted |
| mov eax, [_opngen + opngen_t.feedback4] |
mov eax, [_opngen + opngen_t.feedback4] |
| op_out |
op_out |
| mov ebx, [esi + ch_t.connect4] |
mov ebx, [esi + ch_t.connect4] |
| add [ebx], eax |
add [ebx], eax |
| og_calcsloted: add edi, byte (ch_t.size - (slot_t.size * 3)) |
og_calcsloted: inc dword [_opngen + opngen_t.playing] |
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og_calcch_nt: add esi, ch_t_size |
| dec ch |
dec ch |
| jne near og_calcch_lp |
jne near og_calcch_lp |
| mov eax, [_opngen + opngen_t.outdc] |
mov eax, [_opngen + opngen_t.outdc] |
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Line 291 og_nextsamp: neg ebx
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Line 300 og_nextsamp: neg ebx
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| pop ebx |
pop ebx |
| og_noupdate: ret 4 |
og_noupdate: ret 4 |
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| setenv envcalc1, envret1 |
setenv envcalc1, envret1, 1 |
| setenv envcalc2, envret2 |
setenv envcalc2, envret2, 2 |
| setenv envcalc3, envret3 |
setenv envcalc3, envret3, 4 |
| setenv envcalc4, envret4 |
setenv envcalc4, envret4, 8 |
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| align 16 |
align 16 |
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Line 359 ogv_algchk: cmp byte [esi + ch_t.algor
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Line 368 ogv_algchk: cmp byte [esi + ch_t.algor
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| jmp short ogv_calcslot3 |
jmp short ogv_calcslot3 |
| ogv_calcalg5: mov ebx, [esi + ch_t.connect1] ; case ALG != 5 |
ogv_calcalg5: mov ebx, [esi + ch_t.connect1] ; case ALG != 5 |
| add [ebx], eax |
add [ebx], eax |
| ogv_calcslot3: add edi, byte slot_t.size ; slot3 calculate |
ogv_calcslot3: add edi, byte slot_t_size ; slot3 calculate |
| calcenv vrenvcalc2, vrenvret2 |
calcenv vrenvcalc2, vrenvret2 |
| jl short ogv_calcslot2 |
jl short ogv_calcslot2 |
| mov eax, [_opngen + opngen_t.feedback2] |
mov eax, [_opngen + opngen_t.feedback2] |
| op_out |
op_out |
| mov ebx, [esi + ch_t.connect2] |
mov ebx, [esi + ch_t.connect2] |
| add [ebx], eax |
add [ebx], eax |
| ogv_calcslot2: add edi, byte slot_t.size ; slot2 calculate |
ogv_calcslot2: add edi, byte slot_t_size ; slot2 calculate |
| calcenv vrenvcalc3, vrenvret3 |
calcenv vrenvcalc3, vrenvret3 |
| jl short ogv_calcslot4 |
jl short ogv_calcslot4 |
| mov eax, [_opngen + opngen_t.feedback3] |
mov eax, [_opngen + opngen_t.feedback3] |
| op_out |
op_out |
| mov ebx, [esi + ch_t.connect3] |
mov ebx, [esi + ch_t.connect3] |
| add [ebx], eax |
add [ebx], eax |
| ogv_calcslot4: add edi, byte slot_t.size ; slot4 calculate |
ogv_calcslot4: add edi, byte slot_t_size ; slot4 calculate |
| calcenv vrenvcalc4, vrenvret4 |
calcenv vrenvcalc4, vrenvret4 |
| jl short ogv_calcsloted |
jl short ogv_calcsloted |
| mov eax, [_opngen + opngen_t.feedback4] |
mov eax, [_opngen + opngen_t.feedback4] |
| op_out |
op_out |
| mov ebx, [esi + ch_t.connect4] |
mov ebx, [esi + ch_t.connect4] |
| add [ebx], eax |
add [ebx], eax |
| ogv_calcsloted: add edi, byte (ch_t.size - (slot_t.size * 3)) |
ogv_calcsloted: add edi, byte (ch_t_size - (slot_t_size * 3)) |
| dec ch |
dec ch |
| jne near ogv_calcch_lp |
jne near ogv_calcch_lp |
| mov eax, [_opngen + opngen_t.outdl] |
mov eax, [_opngen + opngen_t.outdl] |
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Line 435 ogv_nextsamp: neg ebx
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Line 444 ogv_nextsamp: neg ebx
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| pop ebx |
pop ebx |
| ogv_noupdate: ret 4 |
ogv_noupdate: ret 4 |
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| setenv vrenvcalc1, vrenvret1 |
setenv vrenvcalc1, vrenvret1, 1 |
| setenv vrenvcalc2, vrenvret2 |
setenv vrenvcalc2, vrenvret2, 2 |
| setenv vrenvcalc3, vrenvret3 |
setenv vrenvcalc3, vrenvret3, 4 |
| setenv vrenvcalc4, vrenvret4 |
setenv vrenvcalc4, vrenvret4, 8 |
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| ends |
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