failed to play sound

diff --git a/src/z80/main.asm b/src/z80/main.asm
index 969559a..3727e74 100644 (file)
--- a/src/z80/main.asm
+++ b/src/z80/main.asm
@@ -6,16 +6,50 @@
        org 38h
        jp vblank_isr
 
+TESTDATA_LEN equ 43
+
        section .text
 main:  di
        ld sp, $2000
        im 1
+       call init
+       ; iy is left with YMADDR
+       ld (iy), YM_OPER
+       ld (iy+1), $f0  ; key on
        ei
-.hang: halt
-       jr .hang
+mainloop:
+       halt            ; wait for interrupt
+       ld a, (frame)
+       ld b, a         ; b: cur frame
+       ld a, (prev)    ; a: prev frame
+       xor b
+       bit 7, a
+       ld a, b
+       ld (prev), a
+       jr z, mainloop
+
+       bit 7, a        ; 0: play, 1: stop
+       jr z, .keyon
+       ld (iy), YM_OPER
+       ld (iy+1), 0    ; key off
+       jr mainloop
+.keyon:        ld (iy), YM_OPER
+       ld (iy+1), $f0  ; key on
+       jr mainloop
 
 init:
+       ld ix, testdata
+       ld iy, YMADDR
+       ld b, TESTDATA_LEN
+.loop: call ymwait
+       ld a, (ix)
+       ld (iy), a      ; select reg
+       inc ix
        call ymwait
+       ld a, (ix)
+       ld (iy+1), a    ; write reg
+       inc ix
+       djnz .loop
        ret
 
 ymwait:
@@ -27,10 +61,65 @@ ymwait:
 
 
 vblank_isr:
-       ;ex af, af'
+       ex af, af'
+       exx
 
-       ;ex af, af'
-       ;ei
+       ld hl, frame
+       inc (hl)
+
+       exx
+       ex af, af'
+       ei
        ret
 
+
+frame: db 0
+prev:  db 0
+
+
+testdata:
+       db YM_LFO, 0
+       db YM_MODE, 0
+       db YM_OPER, 0
+       db YM_OPER, 1
+       db YM_OPER, 2
+       db YM_OPER, 3
+       db YM_OPER, 4
+       db YM_OPER, 5
+       db YM_OPER, 6
+       db YM_DACEN, 0
+       db YM_DT1MUL_OP1, $71
+       db YM_DT1MUL_OP2, $0d
+       db YM_DT1MUL_OP3, $33
+       db YM_DT1MUL_OP4, $01
+       db YM_TL_OP1, $23
+       db YM_TL_OP2, $2d
+       db YM_TL_OP3, $26
+       db YM_TL_OP4, 0
+       db YM_RSAR_OP1, $5f
+       db YM_RSAR_OP2, $99
+       db YM_RSAR_OP3, $5f
+       db YM_RSAR_OP4, $94
+       db YM_AMD1R_OP1, 5
+       db YM_AMD1R_OP2, 5
+       db YM_AMD1R_OP3, 5
+       db YM_AMD1R_OP3, 7
+       db YM_D2R_OP1, 2
+       db YM_D2R_OP2, 2
+       db YM_D2R_OP3, 2
+       db YM_D2R_OP4, 2
+       db YM_D1LRR_OP1, $11
+       db YM_D1LRR_OP2, $11
+       db YM_D1LRR_OP3, $11
+       db YM_D1LRR_OP4, $a6
+       db YM_SSGEG_OP1, 0
+       db YM_SSGEG_OP2, 0
+       db YM_SSGEG_OP3, 0
+       db YM_SSGEG_OP4, 0
+       db YM_FEEDBALG, $32
+       db YM_LRAMSFMS, $c0
+       db YM_OPER, 0
+       db YM_BLOCKFREQ, $22
+       db YM_FREQ, $69
+
 ; vi:ft=z80:

diff --git a/src/z80/sndregs.inc b/src/z80/sndregs.inc
index 4efe4d1..21abdd0 100644 (file)
--- a/src/z80/sndregs.inc
+++ b/src/z80/sndregs.inc
@@ -12,9 +12,40 @@ YM_OPER              equ $28
 YM_DAC         equ $2a
 YM_DACEN       equ $2b
 
-YM_OP1_DT1MUL  equ $30
-YM_OP2_DT1MUL  equ $34
-YM_OP3_DT1MUL  equ $38
-YM_OP4_DT1MUL  equ $3c
+YM_DT1MUL_OP1  equ $30
+YM_DT1MUL_OP2  equ $34
+YM_DT1MUL_OP3  equ $38
+YM_DT1MUL_OP4  equ $3c
+YM_TL_OP1      equ $40
+YM_TL_OP2      equ $44
+YM_TL_OP3      equ $48
+YM_TL_OP4      equ $4c
+YM_RSAR_OP1    equ $50
+YM_RSAR_OP2    equ $54
+YM_RSAR_OP3    equ $58
+YM_RSAR_OP4    equ $5c
+YM_AMD1R_OP1   equ $60
+YM_AMD1R_OP2   equ $64
+YM_AMD1R_OP3   equ $68
+YM_AMD1R_OP4   equ $6c
+YM_D2R_OP1     equ $70
+YM_D2R_OP2     equ $74
+YM_D2R_OP3     equ $78
+YM_D2R_OP4     equ $7c
+YM_D1LRR_OP1   equ $80
+YM_D1LRR_OP2   equ $84
+YM_D1LRR_OP3   equ $88
+YM_D1LRR_OP4   equ $8c
+YM_SSGEG_OP1   equ $90
+YM_SSGEG_OP2   equ $94
+YM_SSGEG_OP3   equ $98
+YM_SSGEG_OP4   equ $9c
+
+YM_FREQ                equ $a0
+YM_BLOCKFREQ   equ $a4
+YM_CH3SUPFREQ  equ $a8
+YM_CH3SUPBLKFREQ       equ $ac
+YM_FEEDBALG    equ $b0
+YM_LRAMSFMS    equ $b4
 
 ; vi:ft=z80: