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cpu_static.asm
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cpu_static.asm
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.assume ADL=1
_em180:
ld (em180_spbak),sp
ld sp,em180_stack4prgs
ld (em180_ixiybak+0),ix
ld (em180_ixiybak+3),iy
em180_fetch:
ei
di
ld a,000h
ld (em180_opctmp+0),a
ld (em180_opctmp+1),a
ld (em180_opctmp+2),a
ld (em180_opctmp+3),a
ld (em180_opctmp+4),a
ld (em180_opctmp+5),a
ld (em180_opctmp+6),a
ld (em180_opctmp+7),a
ld (em180_opctmp+8),a
ld (em180_opctmp+9),a
ld (em180_opctmp+10),a
ld a,040h
ld (em180_opctmp-1),a
em180_fetch_1:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+0),a
cp a,040h
jp z,em180_fetch_suffix
cp a,049h
jp z,em180_fetch_suffix
cp a,052h
jp z,em180_fetch_suffix
cp a,05bh
jp z,em180_fetch_suffix
cp a,0c3h
jp z,em180_op_c0_ff_jp
cp a,0c9h
jp z,em180_op_c0_ff_ret
cp a,0cdh
jp z,em180_op_c0_ff_call
cp a,0d3h
jp z,em180_op_c0_ff_cbpf
cp a,0dbh
jp z,em180_op_c0_ff_cbpf
cp a,0e9h
jp z,em180_op_c0_ff_jphl
cp a,0cbh
jp z,em180_op_c0_ff_cbpf
cp a,0ddh
jp z,em180_op_c0_ff_ddpf
cp a,0edh
jp z,em180_op_c0_ff_edpf
cp a,0fdh
jp z,em180_op_c0_ff_fdpf
rrca
rrca
rrca
rrca
rrca
rrca
and a,03h
cp a,0
jp z,em180_op_00_3f
cp a,3
jp z,em180_op_c0_ff
jp em180_exec_trcode
em180_fetch_suffix:
ld (em180_opctmp-1),a
jp em180_fetch_1
em180_op_00_3f:
ld a,(em180_opctmp+0)
and a,07h
cp a,0
jp z,em180_op_00_3f_2
cp a,1
jp z,em180_op_00_3f_5
cp a,2
jp z,em180_op_00_3f_1
cp a,6
jp z,em180_op_00_3f_cp1
jp em180_exec_trcode
em180_op_00_3f_cp1:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+1),a
jp em180_exec_trcode
em180_op_00_3f_cp2:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+1),a
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+2),a
jp em180_exec_trcode
em180_op_00_3f_1:
ld a,(em180_opctmp+0)
rrca
rrca
rrca
rrca
rrca
and a,1
jp nz,em180_op_00_3f_cp2
jp em180_exec_trcode
em180_op_00_3f_2:
ld a,(em180_opctmp+0)
and a,a
jp z,em180_exec_trcode
cp a,08h
jp z,em180_exec_trcode
cp a,010h
jp z,em180_op_00_3f_3
cp a,018h
jp z,em180_op_00_3f_4
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+0),a
ld a,0
ld (em180_opctmp-1),a
ld b,0c2h
ld a,(em180_opctmp+0)
and a,018h
or a,b
ld (em180_opctmp+0),a
ld bc,em180_jr
ld (em180_opctmp+1),bc
jp em180_exec_trcode
em180_op_00_3f_3:
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+0),a
ld a,0
ld (em180_opctmp-1),a
ld a,0c3h
ld (em180_opctmp+0),a
ld bc,em180_djnz
ld (em180_opctmp+1),bc
jp em180_exec_trcode
em180_op_00_3f_4:
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+0),a
ld a,0
ld (em180_opctmp-1),a
ld a,0c3h
ld (em180_opctmp+0),a
ld bc,em180_jr
ld (em180_opctmp+1),bc
jp em180_exec_trcode
em180_op_00_3f_5:
ld a,(em180_opctmp+0)
rrca
rrca
rrca
and a,1
jp z,em180_op_00_3f_cp2
jp em180_exec_trcode
em180_op_c0_ff:
ld a,(em180_opctmp+0)
and a,07h
cp a,0
jp z,em180_op_c0_ff__0
cp a,2
jp z,em180_op_c0_ff__2
cp a,4
jp z,em180_op_c0_ff__4
cp a,6
jp z,em180_op_c0_ff__6
cp a,7
jp z,em180_op_c0_ff__7
jp em180_exec_trcode
em180_op_c0_ff__0:
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
ld (em180_spbak+3),sp
ld sp,(em180_spbak)
ld ix,(em180_ixiybak+0)
ld iy,(em180_ixiybak+3)
jp nz,em180_opctmpwp
ld sp,(em180_spbak+3)
ld a,0
ld (em180_opctmp-1),a
ld a,(em180_opctmp+0)
and a,038h
ld b,0c2h
or a,b
ld (em180_opctmp+0),a
ld bc,em180_ret
ld (em180_opctmp+1),bc
ld a,0c3h
ld (em180_opctmp+4),a
ld bc,em180_skip4ncc
ld (em180_opctmp+5),bc
jp em180_exec_trcode
em180_op_c0_ff__2:
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
jp nz,em180_op_c0_ff__cpinst2
ld a,0
ld (em180_opctmp-1),a
ld a,(em180_opctmp+0)
and a,038h
ld b,0c2h
or a,b
ld (em180_opctmp+0),a
ld bc,em180_jp
ld (em180_opctmp+1),bc
ld a,0c3h
ld (em180_opctmp+4),a
ld bc,em180_skip4ncc
ld (em180_opctmp+5),bc
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+0),a
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+1),a
jp em180_exec_trcode
em180_op_c0_ff__4:
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
jp nz,em180_op_c0_ff__cpinst2
ld a,0
ld (em180_opctmp-1),a
ld a,(em180_opctmp+0)
and a,038h
ld b,0c2h
or a,b
ld (em180_opctmp+0),a
ld bc,em180_call
ld (em180_opctmp+1),bc
ld a,0c3h
ld (em180_opctmp+4),a
ld bc,em180_skip4ncc
ld (em180_opctmp+5),bc
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+0),a
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+1),a
jp em180_exec_trcode
em180_op_c0_ff__6:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+1),a
jp em180_exec_trcode
em180_op_c0_ff__7:
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
jp nz,em180_exec_trcode
ld a,(em180_opctmp+0)
and a,038h
ld (em180_addr24+0),a
ld a,0
ld (em180_opctmp-1),a
ld a,0c3h
ld (em180_opctmp+0),a
ld bc,em180_call
ld (em180_opctmp+1),bc
ld a,0c3h
ld (em180_opctmp+4),a
ld bc,em180_skip4ncc
ld (em180_opctmp+5),bc
jp em180_exec_trcode
em180_op_c0_ff_ret:
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
ld (em180_spbak+3),sp
ld sp,(em180_spbak)
ld ix,(em180_ixiybak+0)
ld iy,(em180_ixiybak+3)
jp nz,em180_opctmpwp
ld sp,(em180_spbak+3)
ld a,0
ld (em180_opctmp-1),a
ld a,0c3h
ld (em180_opctmp+0),a
ld bc,em180_ret
ld (em180_opctmp+1),bc
ld a,0c3h
ld (em180_opctmp+4),a
ld bc,em180_skip4ncc
ld (em180_opctmp+5),bc
jp em180_exec_trcode
em180_op_c0_ff_jp:
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
jp nz,em180_op_c0_ff__cpinst2
ld a,0
ld (em180_opctmp-1),a
ld a,0c3h
ld (em180_opctmp+0),a
ld bc,em180_jp
ld (em180_opctmp+1),bc
ld a,0c3h
ld (em180_opctmp+4),a
ld bc,em180_skip4ncc
ld (em180_opctmp+5),bc
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+0),a
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+1),a
jp em180_exec_trcode
em180_op_c0_ff_call:
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
jp nz,em180_op_c0_ff__cpinst2
ld a,0
ld (em180_opctmp-1),a
ld a,0c3h
ld (em180_opctmp+0),a
ld bc,em180_call
ld (em180_opctmp+1),bc
ld a,0c3h
ld (em180_opctmp+4),a
ld bc,em180_skip4ncc
ld (em180_opctmp+5),bc
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+0),a
ld.sis a,(hl)
inc.sis hl
ld (em180_addr24+1),a
jp em180_exec_trcode
em180_op_c0_ff_jphl:
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
jp nz,em180_exec_trcode
ld a,0
ld (em180_opctmp-1),a
ld a,0c3h
ld (em180_opctmp+0),a
ld bc,em180_jphl
ld (em180_opctmp+1),bc
ld a,0c3h
ld (em180_opctmp+4),a
ld bc,em180_skip4ncc
ld (em180_opctmp+5),bc
jp em180_exec_trcode
em180_op_c0_ff__cpinst2:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+1),a
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+2),a
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
jp nz,em180_op_c0_ff__cpinst2p1
jp em180_exec_trcode
em180_op_c0_ff__cpinst2p1:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+3),a
jp em180_exec_trcode
em180_op_c0_ff_cbpf:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+1),a
jp em180_exec_trcode
em180_op_c0_ff_ddpf:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+1),a
cp a,0e9h
jp z,em180_op_c0_ff_jpix
jp em180_op_ixypf
em180_op_c0_ff_fdpf:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+1),a
cp a,0e9h
jp z,em180_op_c0_ff_jpiy
jp em180_op_ixypf
em180_op_c0_ff_jpix:
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
jp nz,em180_exec_trcode
ld a,0
ld (em180_opctmp-1),a
ld a,0c3h
ld (em180_opctmp+0),a
ld bc,em180_jpix
ld (em180_opctmp+1),bc
ld a,0c3h
ld (em180_opctmp+4),a
ld bc,em180_skip4ncc
ld (em180_opctmp+5),bc
jp em180_exec_trcode
em180_op_c0_ff_jpiy:
ld a,(em180_opctmp-1)
rrca
rrca
rrca
and a,1
jp nz,em180_exec_trcode
ld a,0
ld (em180_opctmp-1),a
ld a,0c3h
ld (em180_opctmp+0),a
ld bc,em180_jpiy
ld (em180_opctmp+1),bc
ld a,0c3h
ld (em180_opctmp+4),a
ld bc,em180_skip4ncc
ld (em180_opctmp+5),bc
jp em180_exec_trcode
em180_op_ixypf:
ld a,(em180_opctmp+1)
cp a,0cbh
jp z,em180_op_ixypf_opt1_2
rrca
rrca
rrca
rrca
rrca
rrca
and a,3
jp z,em180_op_ixypf_00_3f
cp a,1
jp z,em180_op_ixypf_40_7f
cp a,2
jp z,em180_op_ixypf_80_bf
jp em180_exec_trcode
em180_op_ixypf_00_3f:
ld a,(em180_opctmp+1)
cp a,021h
jp z,em180_op_ixypf_opt1_2
cp a,022h
jp z,em180_op_ixypf_opt1_2
cp a,02ah
jp z,em180_op_ixypf_opt1_2
cp a,031h
jp z,em180_op_ixypf_opt1_1
cp a,03eh
jp z,em180_op_ixypf_opt1_1
rrca
rrca
rrca
and a,7
cp a,6
jp z,em180_op_ixypf_00_3f_ixinsthl
ld a,(em180_opctmp+1)
and a,7
cp a,6
jp z,em180_op_ixypf_opt1_1
cp a,7
jp z,em180_op_ixypf_opt1_1
jp em180_exec_trcode
em180_op_ixypf_00_3f_ixinsthl:
ld a,(em180_opctmp+1)
and a,7
cp a,4
jp z,em180_op_ixypf_opt1_1
cp a,5
jp z,em180_op_ixypf_opt1_1
cp a,6
jp z,em180_op_ixypf_opt1_2
cp a,7
jp z,em180_op_ixypf_opt1_1
jp em180_exec_trcode
em180_op_ixypf_40_7f:
ld a,(em180_opctmp+1)
and a,7
cp a,6
jp z,em180_op_ixypf_opt1_1
ld a,(em180_opctmp+1)
rrca
rrca
rrca
and a,7
cp a,6
jp z,em180_op_ixypf_opt1_1
jp em180_exec_trcode
em180_op_ixypf_80_bf:
ld a,(em180_opctmp+1)
and a,7
cp a,6
jp z,em180_op_ixypf_opt1_1
jp em180_exec_trcode
em180_op_ixypf_opt1_1:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+2),a
jp em180_exec_trcode
em180_op_ixypf_opt1_2:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+2),a
em180_op_ixypf_opt2_1:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+3),a
jp em180_exec_trcode
em180_op_ixypf_opt1_3:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+2),a
em180_op_ixypf_opt2_2:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+3),a
em180_op_ixypf_opt3_1:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+4),a
jp em180_exec_trcode
em180_op_c0_ff_edpf:
ld.sis a,(hl)
inc.sis hl
ld (em180_opctmp+1),a
rrca
rrca
rrca
rrca
rrca
rrca
and a,3
jp z,em180_op_c0_ff_edpf_00_3f
cp a,1
jp z,em180_op_c0_ff_edpf_40_7f
jp em180_exec_trcode
em180_op_c0_ff_edpf_00_3f:
ld a,(em180_opctmp+1)
and a,7
jp z,em180_op_ixypf_opt1_1
cp a,1
jp z,em180_op_ixypf_opt1_1
cp a,2
jp z,em180_op_ixypf_opt1_1
cp a,3
jp z,em180_op_ixypf_opt1_1
jp em180_exec_trcode
em180_op_c0_ff_edpf_40_7f:
ld a,(em180_opctmp+1)
cp a,044h
jp z,em180_exec_trcode
cp a,054h
jp z,em180_op_ixypf_opt1_1
cp a,055h
jp z,em180_op_ixypf_opt1_1
cp a,065h
jp z,em180_op_ixypf_opt1_1
cp a,066h
jp z,em180_op_ixypf_opt1_1
and a,7
cp a,3
jp z,em180_op_ixypf_opt1_2
ld a,(em180_opctmp+1)
rrca
rrca
rrca
rrca
rrca
and a,1
jp z,em180_op_c0_ff_edpf_40_7f_1
jp em180_exec_trcode
em180_op_c0_ff_edpf_40_7f_1:
ld a,(em180_opctmp+1)
rrca
rrca
rrca
and a,1
jp z,em180_op_c0_ff_edpf_40_7f_2
jp em180_exec_trcode
em180_op_c0_ff_edpf_40_7f_2:
ld a,(em180_opctmp+1)
and a,7
cp a,4
jp z,em180_op_ixypf_opt1_1
jp em180_exec_trcode
em180_exec_trcode:
di
ld (em180_stack4z80inst+(3*11)),hl
ld hl,(em180_stack4z80inst+(3*10))
ld.sis sp,hl
ld hl,(em180_stack4z80inst+(3*0))
push hl
pop af
ld bc,(em180_stack4z80inst+(3*1))
ld de,(em180_stack4z80inst+(3*2))
ld hl,(em180_stack4z80inst+(3*3))
ex af,af'
exx
ld hl,(em180_stack4z80inst+(3*4))
push hl
pop af
ld bc,(em180_stack4z80inst+(3*5))
ld de,(em180_stack4z80inst+(3*6))
ld hl,(em180_stack4z80inst+(3*7))
ex af,af'
exx
ld ix,(em180_stack4z80inst+(3*8))
ld iy,(em180_stack4z80inst+(3*9))
ld (em180_spbak+3),sp
ld sp,(em180_spbak)
em180_opctmpwp:
.db 040h
em180_opctmp:
nop
nop
nop
nop
nop
nop
nop
nop
em180_addr24:
nop
nop
nop
em180_skip4ncc:
ld (em180_spbak),sp
ld sp,(em180_spbak+3)
ld (em180_stack4z80inst+(3*1)),bc
ld (em180_stack4z80inst+(3*2)),de
ld (em180_stack4z80inst+(3*3)),hl
push af
pop hl
ld (em180_stack4z80inst+(3*0)),hl
ex af,af'
exx
ld (em180_stack4z80inst+(3*5)),bc
ld (em180_stack4z80inst+(3*6)),de
ld (em180_stack4z80inst+(3*7)),hl
push af
pop hl
ld (em180_stack4z80inst+(3*4)),hl
ex af,af'
exx
ld (em180_stack4z80inst+(3*8)),ix
ld (em180_stack4z80inst+(3*9)),iy
ld hl,0
add.sis hl,sp
ld (em180_stack4z80inst+(3*10)),hl
ld hl,(em180_stack4z80inst+(3*11))
jp em180_fetch
em180_call:
ld hl,(em180_stack4z80inst+(3*11))
push.sis hl
ld (em180_stack4z80inst+(3*11)),hl
ld hl,0
add.sis hl,sp
ld (em180_stack4z80inst+(3*10)),hl
em180_jp:
ld hl,(em180_addr24)
jp em180_fetch
em180_jphl:
ld (em180_stack4z80inst+(3*11)),hl
ld hl,(em180_stack4z80inst+(3*11))
jp em180_fetch
em180_jpix:
ld (em180_stack4z80inst+(3*11)),ix
ld hl,(em180_stack4z80inst+(3*11))
jp em180_fetch
em180_jpiy:
ld (em180_stack4z80inst+(3*11)),iy
ld hl,(em180_stack4z80inst+(3*11))
jp em180_fetch
em180_ret:
pop.sis hl
ld (em180_stack4z80inst+(3*11)),hl
ld hl,0
add.sis hl,sp
ld (em180_stack4z80inst+(3*10)),hl
ld hl,(em180_stack4z80inst+(3*11))
jp em180_fetch
em180_djnz:
ld hl,(em180_stack4z80inst+(3*11))
dec b
ld (em180_stack4z80inst+(3*1)),bc
ld a,b
and a,a
jp z,em180_fetch
em180_jr:
ld a,(em180_addr24)
cp a,128
jp nc,em180_jr_1
ld hl,(em180_stack4z80inst+(3*11))
ld b,a
ld a,l
add a,b
ld l,a
ld a,h
adc a,0
ld h,a
jp em180_fetch
em180_jr_1:
ld b,a
ld a,255
sub a,b
inc a
ld hl,(em180_stack4z80inst+(3*11))
ld b,a
ld a,l
sub a,b
ld l,a
ld a,h
sbc a,0
ld h,a
jp em180_fetch
em180_stack4z80inst:
.dl 0
.dl 0
.dl 0
.dl 0
.dl 0
.dl 0
.dl 0
.dl 0
.dl 0
.dl 0
.dl 0
.dl 0
.fill 4096
em180_stack4prgs:
em180_spbak:
.dl 0
.dl 0
em180_ixiybak:
.dl 0
.dl 0