asmz80.asm

bung.cpp bung.dfm bung.h DbgWarn.cpp DbgWarn.dfm DbgWarn.h Debug.cpp Debug.dfm Debug.h Emu.cpp Emu

    jmp next
sbc_a_h:
    sahf
    sbb al,dh
    lahf
    mov byte ptr [_nFlag],1
    jmp next
sbc_a_l:
    sahf
    sbb al,dl
    lahf
    mov byte ptr [_nFlag],1
    jmp next
sbc_a_xhl:
    call get_hl
    sahf
    sbb al,byte ptr [memVal]
    lahf
    mov byte ptr [_nFlag],1
    jmp next
sbc_a_a:
    sahf
    sbb al,al
    lahf
    mov byte ptr [_nFlag],1
    jmp next

sbc_a_byte:
    call get_opbyte
    sahf
    sbb al,byte ptr [memVal]
    lahf
    mov byte ptr [_nFlag],1
    jmp next

scf:
    and ah,0efh
    or ah,1
    mov byte ptr [_nFlag],0
    jmp next

set_0_b:
    bts bx,8
    jmp next
set_0_c:
    bts bx,0
    jmp next
set_0_d:
    bts cx,8
    jmp next
set_0_e:
    bts cx,0
    jmp next
set_0_h:
    bts dx,8
    jmp next
set_0_l:
    bts dx,0
    jmp next
set_0_xhl:
    call get_hl
    bts [memVal],0
    call put_hl
    jmp next
set_0_a:
    bts ax,0
    jmp next
set_1_b:
    bts bx,9
    jmp next
set_1_c:
    bts bx,1
    jmp next
set_1_d:
    bts cx,9
    jmp next
set_1_e:
    bts cx,1
    jmp next
set_1_h:
    bts dx,9
    jmp next
set_1_l:
    bts dx,1
    jmp next
set_1_xhl:
    call get_hl
    bts [memVal],1
    call put_hl
    jmp next
set_1_a:
    bts ax,1
    jmp next
set_2_b:
    bts bx,10
    jmp next
set_2_c:
    bts bx,2
    jmp next
set_2_d:
    bts cx,10
    jmp next
set_2_e:
    bts cx,2
    jmp next
set_2_h:
    bts dx,10
    jmp next
set_2_l:
    bts dx,2
    jmp next
set_2_xhl:
    call get_hl
    bts [memVal],2
    call put_hl
    jmp next
set_2_a:
    bts ax,2
    jmp next
set_3_b:
    bts bx,11
    jmp next
set_3_c:
    bts bx,3
    jmp next
set_3_d:
    bts cx,11
    jmp next
set_3_e:
    bts cx,3
    jmp next
set_3_h:
    bts dx,11
    jmp next
set_3_l:
    bts dx,3
    jmp next
set_3_xhl:
    call get_hl
    bts [memVal],3
    call put_hl
    jmp next
set_3_a:
    bts ax,3
    jmp next
set_4_b:
    bts bx,12
    jmp next
set_4_c:
    bts bx,4
    jmp next
set_4_d:
    bts cx,12
    jmp next
set_4_e:
    bts cx,4
    jmp next
set_4_h:
    bts dx,12
    jmp next
set_4_l:
    bts dx,4
    jmp next
set_4_xhl:
    call get_hl
    bts [memVal],4
    call put_hl
    jmp next
set_4_a:
    bts ax,4
    jmp next
set_5_b:
    bts bx,13
    jmp next
set_5_c:
    bts bx,5
    jmp next
set_5_d:
    bts cx,13
    jmp next
set_5_e:
    bts cx,5
    jmp next
set_5_h:
    bts dx,13
    jmp next
set_5_l:
    bts dx,5
    jmp next
set_5_xhl:
    call get_hl
    bts [memVal],5
    call put_hl
    jmp next
set_5_a:
    bts ax,5
    jmp next
set_6_b:
    bts bx,14
    jmp next
set_6_c:
    bts bx,6
    jmp next
set_6_d:
    bts cx,14
    jmp next
set_6_e:
    bts cx,6
    jmp next
set_6_h:
    bts dx,14
    jmp next
set_6_l:
    bts dx,6
    jmp next
set_6_xhl:
    call get_hl
    bts [memVal],6
    call put_hl
    jmp next
set_6_a:
    bts ax,6
    jmp next
set_7_b:
    bts bx,15
    jmp next
set_7_c:
    bts bx,7
    jmp next
set_7_d:
    bts cx,15
    jmp next
set_7_e:
    bts cx,7
    jmp next
set_7_h:
    bts dx,15
    jmp next
set_7_l:
    bts dx,7
    jmp next
set_7_xhl:
    call get_hl
    bts [memVal],7
    call put_hl
    jmp next
set_7_a:
    bts ax,7
    jmp next

sla_b:
    shl bh,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sla_c:
    shl bl,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sla_d:
    shl ch,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sla_e:
    shl cl,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sla_h:
    shl dh,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sla_l:
    shl dl,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sla_xhl:
    call get_hl
    shl byte ptr [memVal],1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    call put_hl
    jmp next
sla_a:
    shl al,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next

sra_b:
    sar bh,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sra_c:
    sar bl,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sra_d:
    sar ch,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sra_e:
    sar cl,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sra_h:
    sar dh,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sra_l:
    sar dl,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
sra_xhl:
    call get_hl
    sar byte ptr [memVal],1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    call put_hl
    jmp next
sra_a:
    sar al,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next

srl_b:
    shr bh,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
srl_c:
    shr bl,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
srl_d:
    shr ch,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
srl_e:
    shr cl,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
srl_h:
    shr dh,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
srl_l:
    shr dl,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next
srl_xhl:
    call get_hl
    shr byte ptr [memVal],1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    call put_hl
    jmp next
srl_a:
    shr al,1
    lahf
    and ah,0efh
    mov byte ptr [_nFlag],0
    jmp next

stop:
    call get_opbyte
    test byte ptr [_hiRam+4dh],1
    jz next
    xor byte ptr [_hiRam+4dh],80h
    and byte ptr [_hiRam+4dh],80h
    test byte ptr [_hiRam+4dh],80h
    jz stop_SlowMode
    mov byte ptr [_clkMult],2
    jmp next
stop_SlowMode:
    mov byte ptr [_clkMult],1
    jmp next

sub_a_b:
    sub al,bh
    lahf
    mov byte ptr [_nFlag],1
    jmp next
sub_a_c:
    sub al,bl
    lahf
    mov byte ptr [_nFlag],1
    jmp next
sub_a_d:
    sub al,ch
    lahf
    mov byte ptr [_nFlag],1
    jmp next
sub_a_e:
    sub al,cl
    lahf
    mov byte ptr [_nFlag],1
    jmp next
sub_a_h:
    sub al,dh
    lahf
    mov byte ptr [_nFlag],1
    jmp next
sub_a_l:
    sub al,dl
    lahf
    mov byte ptr [_nFlag],1
    jmp next
sub_a_xhl:
    call get_hl
    sub al,byte ptr [memVal]
    lahf
    mov byte ptr [_nFlag],1
    jmp next
sub_a_a:
    sub al,al
    lahf
    mov byte ptr [_nFlag],1
    jmp next

sub_byte:
    call get_opbyte
    sub al,byte ptr [memVal]
    lahf
    mov byte ptr [_nFlag],1
    jmp next

swap_b:
    rol bh,4
    cmp bh,0
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
swap_c:
    rol bl,4
    cmp bl,0
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
swap_d:
    rol ch,4
    cmp ch,0
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
swap_e:
    rol cl,4
    cmp cl,0
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
swap_h:
    rol dh,4
    cmp dh,0
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
swap_l:
    rol dl,4
    cmp dl,0
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
swap_xhl:
    call get_hl
    rol byte ptr [memVal],4
    cmp byte ptr [memVal],0
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    call put_hl
    jmp next
swap_a:
    rol al,4
    cmp al,0
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next

xor_a_b:
    xor al,bh
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
xor_a_c:
    xor al,bl
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
xor_a_d:
    xor al,ch
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
xor_a_e:
    xor al,cl
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
xor_a_h:
    xor al,dh
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
xor_a_l:
    xor al,dl
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
xor_a_xhl:
    call get_hl
    xor al,byte ptr [memVal]
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next
xor_a_a:
    xor al,al
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next

xor_byte:
    call get_opbyte
    xor al,byte ptr [memVal]
    lahf
    and ah,40h
    mov byte ptr [_nFlag],0
    jmp next

cb_cycle_table:
 db 8,8,8,8,8,8,16,8
 db 8,8,8,8,8,8,16,8
 db 8,8,8,8,8,8,16,8
 db 8,8,8,8,8,8,16,8
 db 8,8,8,8,8,8,16,8
 db 8,8,8,8,8,8,16,8
 db 8,8,8,8,8,8,16,8
 db 8,8,8,8,8,8,16,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8
 db 8,8,8,8,8,8,12,8

cb_table:
 dd rlc_b,rlc_c,rlc_d,rlc_e,rlc_h,rlc_l,rlc_xhl,rlc_a
 dd rrc_b,rrc_c,rrc_d,rrc_e,rrc_h,rrc_l,rrc_xhl,rrc_a
 dd rl_b,rl_c,rl_d,rl_e,rl_h,rl_l,rl_xhl,rl_a
 dd rr_b,rr_c,rr_d,rr_e,rr_h,rr_l,rr_xhl,rr_a
 dd sla_b,sla_c,sla_d,sla_e,sla_h,sla_l,sla_xhl,sla_a
 dd sra_b,sra_c,sra_d,sra_e,sra_h,sra_l,sra_xhl,sra_a
 dd swap_b,swap_c,swap_d,swap_e,swap_h,swap_l,swap_xhl,swap_a
 dd srl_b,srl_c,srl_d,srl_e,srl_h,srl_l,srl_xhl,srl_a
 dd bit_0_b,bit_0_c,bit_0_d,bit_0_e,bit_0_h,bit_0_l,bit_0_xhl,bit_0_a
 dd bit_1_b,bit_1_c,bit_1_d,bit_1_e,bit_1_h,bit_1_l,bit_1_xhl,bit_1_a
 dd bit_2_b,bit_2_c,bit_2_d,bit_2_e,bit_2_h,bit_2_l,bit_2_xhl,bit_2_a
 dd bit_3_b,bit_3_c,bit_3_d,bit_3_e,bit_3_h,bit_3_l,bit_3_xhl,bit_3_a
 dd bit_4_b,bit_4_c,bit_4_d,bit_4_e,bit_4_h,bit_4_l,bit_4_xhl,bit_4_a
 dd bit_5_b,bit_5_c,bit_5_d,bit_5_e,bit_5_h,bit_5_l,bit_5_xhl,bit_5_a
 dd bit_6_b,bit_6_c,bit_6_d,bit_6_e,bit_6_h,bit_6_l,bit_6_xhl,bit_6_a
 dd bit_7_b,bit_7_c,bit_7_d,bit_7_e,bit_7_h,bit_7_l,bit_7_xhl,bit_7_a
 dd res_0_b,res_0_c,res_0_d,res_0_e,res_0_h,res_0_l,res_0_xhl,res_0_a
 dd res_1_b,res_1_c,res_1_d,res_1_e,res_1_h,res_1_l,res_1_xhl,res_1_a
 dd res_2_b,res_2_c,res_2_d,res_2_e,res_2_h,res_2_l,res_2_xhl,res_2_a
 dd res_3_b,res_3_c,res_3_d,res_3_e,res_3_h,res_3_l,res_3_xhl,res_3_a
 dd res_4_b,res_4_c,res_4_d,res_4_e,res_4_h,res_4_l,res_4_xhl,res_4_a
 dd res_5_b,res_5_c,res_5_d,res_5_e,res_5_h,res_5_l,res_5_xhl,res_5_a
 dd res_6_b,res_6_c,res_6_d,res_6_e,res_6_h,res_6_l,res_6_xhl,res_6_a
 dd res_7_b,res_7_c,res_7_d,res_7_e,res_7_h,res_7_l,res_7_xhl,res_7_a
 dd set_0_b,set_0_c,set_0_d,set_0_e,set_0_h,set_0_l,set_0_xhl,set_0_a
 dd set_1_b,set_1_c,set_1_d,set_1_e,set_1_h,set_1_l,set_1_xhl,set_1_a
 dd set_2_b,set_2_c,set_2_d,set_2_e,set_2_h,set_2_l,set_2_xhl,set_2_a
 dd set_3_b,set_3_c,set_3_d,set_3_e,set_3_h,set_3_l,set_3_xhl,set_3_a
 dd set_4_b,set_4_c,set_4_d,set_4_e,set_4_h,set_4_l,set_4_xhl,set_4_a
 dd set_5_b,set_5_c,set_5_d,set_5_e,set_5_h,set_5_l,set_5_xhl,set_5_a
 dd set_6_b,set_6_c,set_6_d,set_6_e,set_6_h,set_6_l,set_6_xhl,set_6_a
 dd set_7_b,set_7_c,set_7_d,set_7_e,set_7_h,set_7_l,set_7_xhl,set_7_a

cb_prefix:
    call get_opbyte
    xor esi,esi
    movzx si,byte ptr [memVal]
    movzx bp,byte ptr [offset cb_cycle_table+esi]
    sub [clkLeft],bp
    sub word ptr [_minTime],bp
    jmp [offset cb_table+esi*4]

invalid:
    jmp next

cycle_table:
 db 4,12,8,8,4,4,8,4
 db 4,12,8,8,4,4,8,4
 db 8,12,8,8,4,4,8,4
 db 8,12,8,8,4,4,8,4
 db 8,12,8,8,4,4,8,4
 db 8,12,8,8,4,4,8,4
 db 8,12,8,8,12,12,12,4
 db 8,12,8,8,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 8,8,8,8,8,8,4,8
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 4,4,4,4,4,4,8,4
 db 16,12,16,16,24,16,8,16
 db 16,16,16,0,24,24,8,16
 db 16,10,16,16,24,16,8,16
 db 16,16,16,16,24,24,8,16
 db 12,12,8,12,12,16,8,16
 db 16,4,16,12,12,12,8,16
 db 12,12,8,4,12,16,8,16
 db 12,8,16,4,12,12,8,16

op_table:
 dd nop,ld_bc_word,ld_xbc_a,inc_bc,inc_b,dec_b,ld_b_byte,rlca
 dd ld_xword_sp,add_hl_bc,ld_a_xbc,dec_bc,inc_c,dec_c,ld_c_byte,rrca
 dd stop,ld_de_word,ld_xde_a,inc_de,inc_d,dec_d,ld_d_byte,rla
 dd jr_disp,add_hl_de,ld_a_xde,dec_de,inc_e,dec_e,ld_e_byte,rra
 dd jr_nz_disp,ld_hl_word,ldi_xhl_a,inc_hl,inc_h,dec_h,ld_h_byte,daa
 dd jr_z_disp,add_hl_hl,ldi_a_xhl,dec_hl,inc_l,dec_l,ld_l_byte,cpl
 dd jr_nc_disp,ld_sp_word,ldd_xhl_a,inc_sp,inc_xhl,dec_xhl,ld_xhl_byte,scf
 dd jr_c_disp,add_hl_sp,ldd_a_xhl,dec_sp,inc_a,dec_a,ld_a_byte,ccf
 dd ld_b_b,ld_b_c,ld_b_d,ld_b_e,ld_b_h,ld_b_l,ld_b_xhl,ld_b_a
 dd ld_c_b,ld_c_c,ld_c_d,ld_c_e,ld_c_h,ld_c_l,ld_c_xhl,ld_c_a
 dd ld_d_b,ld_d_c,ld_d_d,ld_d_e,ld_d_h,ld_d_l,ld_d_xhl,ld_d_a
 dd ld_e_b,ld_e_c,ld_e_d,ld_e_e,ld_e_h,ld_e_l,ld_e_xhl,ld_e_a
 dd ld_h_b,ld_h_c,ld_h_d,ld_h_e,ld_h_h,ld_h_l,ld_h_xhl,ld_h_a
 dd ld_l_b,ld_l_c,ld_l_d,ld_l_e,ld_l_h,ld_l_l,ld_l_xhl,ld_l_a
 dd ld_xhl_b,ld_xhl_c,ld_xhl_d,ld_xhl_e,ld_xhl_h,ld_xhl_l,halt,ld_xhl_a
 dd ld_a_b,ld_a_c,ld_a_d,ld_a_e,ld_a_h,ld_a_l,ld_a_xhl,ld_a_a
 dd add_a_b,add_a_c,add_a_d,add_a_e,add_a_h,add_a_l,add_a_xhl,add_a_a
 dd adc_a_b,adc_a_c,adc_a_d,adc_a_e,adc_a_h,adc_a_l,adc_a_xhl,adc_a_a
 dd sub_a_b,sub_a_c,sub_a_d,sub_a_e,sub_a_h,sub_a_l,sub_a_xhl,sub_a_a
 dd sbc_a_b,sbc_a_c,sbc_a_d,sbc_a_e,sbc_a_h,sbc_a_l,sbc_a_xhl,sbc_a_a
 dd and_a_b,and_a_c,and_a_d,and_a_e,and_a_h,and_a_l,and_a_xhl,and_a_a
 dd xor_a_b,xor_a_c,xor_a_d,xor_a_e,xor_a_h,xor_a_l,xor_a_xhl,xor_a_a
 dd or_a_b,or_a_c,or_a_d,or_a_e,or_a_h,or_a_l,or_a_xhl,or_a_a
 dd cp_a_b,cp_a_c,cp_a_d,cp_a_e,cp_a_h,cp_a_l,cp_a_xhl,cp_a_a
 dd ret_nz,pop_bc,jp_nz_word,jp_word,call_nz_word,push_bc,add_a_byte,rst_00
 dd ret_z,ret,jp_z_word,cb_prefix,call_z_word,call_word,adc_a_byte,rst_08
 dd ret_nc,pop_de,jp_nc_word,invalid,call_nc_word,push_de,sub_byte,rst_10
 dd ret_c,reti,jp_c_word,invalid,call_c_word,invalid,sbc_a_byte,rst_18
 dd ldh_xbyte_a,pop_hl,ldh_xc_a,invalid,invalid,push_hl,and_byte,rst_20
 dd add_sp_disp,jp_hl,ld_xword_a,invalid,invalid,invalid,xor_byte,rst_28
 dd ldh_a_xbyte,pop_af,ldh_a_xc,di_,invalid,push_af,or_byte,rst_30
 dd ld_hl_spdisp,ld_sp_hl,ld_a_xword,ei,invalid,invalid,cp_byte,rst_38

@AsmZ80_Execute proc near
    cmp [_run],0
    jz execret
    push eax
    mov [clkLeft],ax
    pusha
    mov al,byte ptr [_regAF+1]
    mov ah,byte ptr [_regAF]
    mov bx,[_regBC]
    mov cx,[_regDE]
    mov dx,[_regHL]
    mov di,[_regSP]
    pusha
    jmp execloop
execloop2:
    cmp word ptr [_gdmaClk],0
    jnz inGDMA
    mov si,[_regPC]
    mov [_oldPC],si
    call get_opbyte
    xor esi,esi
    movzx si,byte ptr [memVal]
    movzx bp,byte ptr [offset cycle_table+esi]
    sub [clkLeft],bp
    sub [_minTime],bp
    jmp [offset op_table+esi*4]
inGDMA:
    mov bp,4
    sub word ptr [clkLeft],bp
    sub word ptr [_minTime],bp
    sub word ptr [_gdmaClk],bp
    jnc next
    mov word ptr [_gdmaClk],0
next:
    cmp word ptr [_minTime],0
    jg execloop2
    jmp afterexecloop
execloop:
    cmp [_debugCheckEnable],0
    jz ecNoDebug
    mov [_minTime],1
    jmp ecNotNeg2
ecNoDebug:
    mov [_minTime],16
    mov bp,[clkLeft]
    cmp bp,[_minTime]
    jg ecGo
    mov [_minTime],bp
ecGo:
    cmp word ptr [_dmaClk],0
    je ecNoDmaClk
    mov bp,word ptr [_dmaClk]
    cmp bp,[_minTime]
    jg ecNoDmaClk
    mov [_minTime],bp
ecNoDmaClk:
    mov bp,[divClk]
    cmp bp,[_minTime]
    jg ecNoDivClk
    mov [_minTime],bp
ecNoDivClk:
    cmp word ptr [_timerClkCount],0
    je ecNoTimerClk
    mov bp,[timerClk]
    cmp bp,[_minTime]
    jg ecNo