; - Cut the .PRL header (first 256 byte) end rename the result to DDTZ.COM.\r
\r
;-------------------------------------------------------------------------------\r
-; Relocation loader\r
-;\r
-\r
-TPA equ 0100h\r
- cseg\r
- .phase TPA\r
-\r
- jp start\r
-\r
-ldr_end:\r
-ldr_size equ $ - TPA\r
-current_phase defl $\r
-\r
- .dephase\r
-current_cseg defl $\r
-\r
-;-------------------------------------------------------------------------------\r
-; DDT/Z core\r
-;\r
-\r
; Some greneral definitions\r
\r
-TAB equ 9\r
-LF equ 10\r
-CR equ 13\r
+TAB equ 09h\r
+CR equ 0dh\r
+LF equ 0ah\r
\r
; CP/M memory layout\r
\r
\r
; ddtz specific definitions\r
\r
-STACK_SIZE equ 64 ;ddtz internal stack\r
+STACK_SIZE equ 80 ;ddtz internal stack\r
CONBUF_SIZE equ 80 ;Size of console input buffer\r
EXPR_BUF_SIZE equ 128 ;expressen buffer for conditional breakpoints\r
BP_CNT equ 12 ;Number of breakpoints\r
BP_SIZE equ 8 ;Size of a breakpoint record\r
YREG_CNT equ 10 ;Number of Y registers (0..9)\r
\r
+SYMCASE_SENS equ 0 ;Symbols are case sensitive\r
+SYMCASE_CONV equ 1 ;Convert case when symbols are loaded\r
+SYMCASE_LOWER equ 2 ;Convert to lower case if set, else to upper case\r
+\r
;-------------------------------------------------------------------------------\r
+; Relocation loader\r
+;\r
+TPA equ 0100h\r
+ cseg\r
+ .phase TPA\r
+\r
+ jp start\r
+ ds 3\r
+\r
+ldr_end:\r
+ldr_size equ $ - TPA\r
+current_phase defl $\r
+\r
+ .dephase\r
+current_cseg defl $\r
+\r
+;-------------------------------------------------------------------------------\r
+; DDT/Z core\r
+;\r
+\r
\r
ddtz_base:\r
jp ddtz_bdos\r
l0003h:\r
- rst 30h\r
-sub_0004h:\r
+ rst 30h ;rst used by ddtz\r
+di_or_ei: ;ints enabled/disabled while ddtz is running\r
nop\r
ret\r
ddtz_bdos:\r
jp 0\r
+screen_width:\r
+ db 80\r
+symlen_max:\r
+ db 16\r
+\r
+symattrib:\r
+ db 0\r
+\r
\r
current_cseg defl $ - current_cseg\r
.phase current_phase + current_cseg\r
signon:\r
- db 'DDT/180',TAB\r
- db '[8101] 003',CR,LF,'$'\r
+ db 'Symbolic DDTZ/180'\r
+ db ' - Version '\r
+ maclib version.inc\r
+ defvers\r
+ db CR,LF,'$'\r
msgz80:\r
db 'Z80 or better required!',cr,lf,'$'\r
\r
var.$: dw 0000h\r
var.@: dw 0\r
\r
-error_func:dw l0146h\r
+error_func:dw p_msg_error\r
cmd_rpt:dw mainloop\r
\r
+;-------------------------------------------------------------------------------\r
+\r
conbuf:\r
db CONBUF_SIZE\r
\r
ld sp,stack\r
exx\r
ld de,ddtz_base\r
- or a\r
- sbc hl,de\r
- add hl,de\r
+ call cp_hl_de\r
jr c,l0079h\r
ex de,hl\r
l0079h:\r
ld a,0fbh\r
l0093h:\r
ld (reg.iff),a\r
- call sub_0004h\r
+ call di_or_ei\r
ld hl,ddtz_base\r
ld l,000h\r
ld (reg_sp),hl\r
\r
ds CONBUF_SIZE + 3 - ($ - conbuf)\r
\r
+;-------------------------------------------------------------------------------\r
+\r
CMDTAB:\r
dw cmd_@ ;examine/substitute the displacement register @\r
dw cmd_A ;Assemble\r
dw cmd_Y ;examine [and substitute] Y variables\r
dw cmd_Z ;Zap (fill) memory with a byte string\r
\r
+ERROR:\r
+ ld hl,(error_func)\r
+exe_hl:\r
+ call CALL_HL\r
+ ;fall thru\r
mainloop:\r
ld sp,stack\r
- ld hl,l0146h\r
+ ld hl,p_msg_error\r
ld (error_func),hl\r
ld hl,(reg.pc)\r
ld (var.$),hl\r
call bp_clr_temporary\r
ld hl,(cmd_rpt)\r
ld de,mainloop\r
+ ld (cmd_rpt),de\r
call cp_hl_de\r
ld a,'>'\r
call outchar\r
call get_line\r
call skipbl\r
jr z,exe_hl\r
- ld hl,mainloop\r
- ld (cmd_rpt),hl\r
inc de\r
sub '@'\r
jr c,ERROR\r
cp 'Z'+1-'@'\r
jr nc,ERROR\r
- add a,a\r
ld hl,CMDTAB\r
- call add_hl_a\r
+ call add_hl_a2\r
ld a,(hl)\r
inc hl\r
ld h,(hl)\r
ld l,a\r
jr exe_hl\r
\r
-ERROR:\r
- ld hl,(error_func)\r
-exe_hl:\r
- call CALL_HL\r
- jr mainloop\r
+;-------------------------------------------------------------------------------\r
\r
-l0146h:\r
- ld a,'?'\r
- call outchar\r
+p_msg_error:\r
+ call pstr_inl\r
+ dc '?'\r
;fall thru\r
crlf:\r
- call inchar\r
- ld a,CR\r
- call outchar\r
- ld a,LF\r
- call outchar\r
- ld a,0\r
+ call pstr_inl\r
+ dc CR,LF\r
+ xor a\r
ld (con_col),a\r
+ call inchar\r
jr c,mainloop\r
ret\r
\r
-get_line:\r
- push hl\r
- ld de,conbuf\r
- ld c,BDOS_CBUF\r
- call ddtz_bdos\r
- call crlf\r
- ld de,conbuf+1\r
- ld a,(de)\r
- ld b,a\r
- ld c,0\r
- inc b\r
-l0162h:\r
- inc de\r
- dec b\r
- jr z,l0194h\r
- ld a,(de)\r
- bit 0,c\r
- call z,toupper\r
- ld (de),a\r
- cp ''''\r
- jr nz,l0162h\r
- push de\r
- dec de\r
- ld a,(de)\r
- cp ''''\r
- jr z,l0190h\r
- dec de\r
- ld a,(de)\r
- cp '^'\r
- jr z,l0184h\r
- dec de\r
- ld a,(de)\r
- cp '^'\r
- jr nz,l0190h\r
-l0184h:\r
- inc de\r
- push bc\r
- call sub_0303h\r
- pop bc\r
- dec de\r
- ld a,(de)\r
- cp ''''\r
- jr z,l0191h\r
-l0190h:\r
- inc c\r
-l0191h:\r
- pop de\r
- jr l0162h\r
-l0194h:\r
- xor a\r
- ld (de),a\r
- ld de,conbuf+2\r
- pop hl\r
- ret\r
-\r
-toupper:\r
- cp 'a'\r
- ret c\r
- cp 'z'+1\r
- ret nc\r
- and 05fh\r
- ret\r
-\r
out.hl.@:\r
call out_hl\r
push de\r
or e\r
jr z,l01bfh\r
call outbl\r
- ld a,'@'\r
- call outchar\r
+ call pstr_inl\r
+ dc '@'\r
and a\r
sbc hl,de\r
call out_hl\r
pop hl\r
pop de\r
ret\r
-out.bin.w:\r
- ld a,h\r
- call out.bin.b\r
- ld a,l\r
-out.bin.b:\r
- ld b,8\r
-l01c9h:\r
- add a,a\r
- push af\r
- ld a,00\r
- adc a,a\r
- call out_dgt\r
- pop af\r
- djnz l01c9h\r
- ld a,'"'\r
- jp outchar\r
\r
sub_01d9h:\r
- ld a,'-'\r
- call outchar\r
- dec hl\r
- jp cpl.hl\r
+ call pstr_inl\r
+ dc '-'\r
+ jp neg.hl\r
\r
out_hl_dec_neg:\r
push hl\r
call sub_01d9h\r
- defb 03eh\r
+ defb 03eh ;ld a,.. swallow push hl\r
out.hl.dec:\r
push hl\r
ld b,006h\r
call sub_01f9h\r
pop hl\r
- ld a,'.'\r
- call outchar\r
+ call pstr_inl\r
+ dc '.'\r
l01f3h:\r
call outbl\r
djnz l01f3h\r
ret\r
+\r
sub_01f9h:\r
dec b\r
push de\r
pop af\r
\r
out_dgt:\r
- and 0fh\r
- cp 10\r
- jr c,l0229h\r
- add a,007h\r
-l0229h:\r
- add a,'0'\r
+ or 0f0h\r
+ daa\r
+ add a,0a0h\r
+ adc a,040h\r
jr outchar\r
-l022dh:\r
- ld a,'-'\r
- call outchar\r
- ld a,040h\r
+\r
+out.bin.w:\r
+ ld a,h\r
+ call out.bin.b\r
+ ld a,l\r
+out.bin.b:\r
+ ld b,8\r
+l01c9h:\r
+ rlca\r
+ push af\r
+ and 1\r
+ call out_dgt\r
+ pop af\r
+ djnz l01c9h\r
+ ld a,'"'\r
+ jr outchar\r
+\r
out.ascii:\r
- ex af,af'\r
- call outquote\r
- ex af,af'\r
- push af\r
+ push bc\r
+ ld c,a\r
res 7,a\r
cp ' '\r
+ push af\r
+ call nc,outbl\r
+ call pstr_inl\r
+ dc ''''\r
+ pop af\r
jr nc,l0242h\r
sub 0c0h\r
+ ld b,a\r
+ call pstr_inl\r
+ dc '^'\r
+ ld a,b\r
l0242h:\r
call outchar\r
- push af\r
cp ''''\r
call z,outchar\r
- pop af\r
- ex af,af'\r
- call outquote\r
- pop af\r
- or a\r
+ call pstr_inl\r
+ dc ''''\r
+ sla c\r
+ pop bc\r
+ ret nc\r
ld a,'.'\r
- call m,outchar\r
- ex af,af'\r
- jr c,l022dh\r
- ret\r
-\r
-p_char_lparen:\r
- ld a,'('\r
jr outchar\r
\r
-outquote:\r
- ld a,''''\r
+outbl6:\r
+ call outbl2\r
+outbl4:\r
+ call outbl2\r
+outbl2:\r
+ call outbl\r
+outbl:\r
+ ld a,' '\r
outchar:\r
+ push ix\r
+ push iy\r
push hl\r
push de\r
push bc\r
pop bc\r
pop de\r
pop hl\r
+ pop iy\r
+ pop ix\r
ret\r
\r
+p_align_@_sym:\r
+ push de\r
+ ld de,(var.@)\r
+ ld a,d\r
+ or e\r
+ pop de\r
+ ld a,(symlen_cur)\r
+ jr z,$+4\r
+ add a,6\r
+ add a,c\r
+ ld c,a\r
+p_goto_col:\r
+ ld a,(con_col)\r
+ cp c\r
+ ret nc\r
+ ret z\r
+ call outbl\r
+ jr p_goto_col\r
+\r
+;-------------------------------------------------------------------------------\r
+\r
inchar:\r
+ push ix\r
push hl\r
push de\r
push bc\r
ld c,BDOS_CSTAT\r
call ddtz_bdos\r
and a\r
- jr z,l0284h\r
+ jr z,inch1\r
ld c,BDOS_CIN\r
call ddtz_bdos\r
scf\r
-l0284h:\r
+inch1:\r
pop bc\r
pop de\r
pop hl\r
+ pop ix\r
ret\r
\r
-pstr:\r
- ld c,0\r
-l028ah:\r
- ld a,(hl)\r
- inc hl\r
- and a\r
- ret z\r
- call outchar\r
- inc c\r
- and a\r
- ret m\r
- jr l028ah\r
-\r
-pstr_inl:\r
- ex (sp),hl\r
- call pstr\r
- ex (sp),hl\r
+get_line:\r
+ push hl\r
+ ld de,conbuf\r
+ ld c,BDOS_CBUF\r
+ call ddtz_bdos\r
+ call crlf\r
+ ld hl,conbuf+1\r
+ ld e,(hl)\r
+ xor a\r
+ ld d,a\r
+ inc hl\r
+ ex de,hl\r
+ add hl,de\r
+ ld (hl),a\r
+ pop hl\r
ret\r
\r
-outbl6:\r
- call outbl2\r
-outbl4:\r
- call outbl2\r
-outbl2:\r
- call outbl\r
-outbl:\r
- ld a,' '\r
- jr outchar\r
+;-------------------------------------------------------------------------------\r
\r
-add_hl_a:\r
- add a,l\r
- ld l,a\r
- ret nc\r
- inc h\r
+get_char_upper:\r
+ ld a,(de)\r
+toupper:\r
+ cp 'a'\r
+ ret c\r
+ cp 'z'+1\r
+ ccf\r
+ ret c\r
+ and 05fh\r
+ ret\r
+\r
+tolower:\r
+ cp 'A'\r
+ ret c\r
+ cp 'Z'+1\r
+ ccf\r
+ ret c\r
+ or 020h\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
skipbl0:\r
inc de\r
skipbl:\r
- ld a,(de)\r
- cp ' '\r
- jr z,skipbl0\r
- cp TAB\r
+ call get_char_upper\r
+ call test_whitespace\r
jr z,skipbl0\r
or a\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
next_arg:\r
call skipbl\r
cp ','\r
ret nz\r
- inc de\r
- call skipbl\r
+ call skipbl0\r
cp a\r
ret\r
\r
to_error:\r
jp ERROR\r
\r
-chk_sp:\r
+;-------------------------------------------------------------------------------\r
+\r
+chk_stack:\r
push hl\r
push de\r
ld hl,0\r
add hl,sp\r
- ld de,stack-40\r
+ ld de,stack-(STACK_SIZE-28)\r
call cp_hl_de\r
pop de\r
pop hl\r
jr c,to_error\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
+add_hl_a2:\r
+ add a,a\r
+add_hl_a:\r
+ add a,l\r
+ ld l,a\r
+ ret nc\r
+ inc h\r
+ ret\r
+\r
cp_hl_de:\r
and a\r
sbc hl,de\r
add hl,de\r
ret\r
\r
+sub_hl_a1:\r
+ dec hl\r
+sub_hl_a:\r
+ push bc\r
+ ld c,a\r
+ xor a\r
+ ld b,a\r
+ sbc hl,bc\r
+ pop bc\r
+ ret\r
+\r
+;-------------------------------------------------------------------------------\r
+\r
+sym_getname:\r
+ push de\r
+ push hl\r
+ ld hl,ddtz_base+2\r
+sgn_l:\r
+ ld d,(hl)\r
+ dec hl\r
+ ld e,(hl)\r
+ dec hl\r
+ ld a,(hl)\r
+ cp 0c3h\r
+ jr z,sgn_e\r
+\r
+ ex (sp),hl\r
+ call cp_hl_de\r
+ jr z,sgn_e\r
+ ex (sp),hl\r
+ call sub_hl_a1\r
+ jr sgn_l\r
+sgn_e:\r
+ sub 0c3h\r
+ pop hl\r
+ pop de\r
+ ret\r
+\r
+p_symstr:\r
+ push bc\r
+ ld b,(hl)\r
+pss_l:\r
+ dec hl\r
+ ld a,(hl)\r
+ call outchar\r
+ djnz pss_l\r
+ dec hl\r
+ pop bc\r
+ ret\r
+\r
+p_symbol:\r
+ if 0\r
+ ld a,(dash_flag)\r
+ or a\r
+ ret nz\r
+ endif\r
+ push hl\r
+ call sym_getname\r
+ call nz,p_symstr\r
+ pop hl\r
+ ret\r
+\r
+p_label:\r
+ if 0\r
+ ld a,(dash_flag)\r
+ or a\r
+ ret nz\r
+ endif\r
+ push hl\r
+ call sym_getname\r
+ jr z,pl_e\r
+ call p_symstr\r
+ call pstr_inl\r
+ dc ':'\r
+ call crlf\r
+pl_e:\r
+ pop hl\r
+ ret\r
+\r
+;-------------------------------------------------------------------------------\r
+\r
lookupch:\r
ld b,0\r
l02f5h:\r
ld a,(hl)\r
and a\r
ret z\r
- ld a,(de)\r
+ call get_char_upper\r
cp (hl)\r
jr z,l0300h\r
inc hl\r
ret\r
\r
sub_0303h:\r
- ld hl,b_0cc3_start\r
+ ld hl,t_reg_names\r
ld b,07fh\r
jr l030ch\r
\r
sub_0318h:\r
push bc\r
res 7,b\r
- defb 03eh\r
+ defb 03eh ;ld a,nn: swallow push bc\r
sub_031ch:\r
push bc\r
push de\r
l031eh:\r
- ld a,(de)\r
+ call get_char_upper\r
xor (hl)\r
and 07fh\r
jr nz,l0336h\r
pop bc\r
ret\r
l0336h:\r
- call sub_0345h\r
+ call str_sel_next\r
l0339h:\r
pop de\r
and a\r
pop bc\r
ret\r
\r
-sel_dc_string:\r
+str_sel:\r
inc b\r
-l033eh:\r
- dec b\r
- ret z\r
- call sub_0345h\r
- jr l033eh\r
+ jr str_sel2\r
+str_sel1:\r
+ call str_sel_next\r
+str_sel2:\r
+ djnz str_sel1\r
+ ret\r
\r
-sub_0345h:\r
+str_sel_next:\r
ld a,(hl)\r
and a\r
ret z\r
ret m\r
jr l0348h\r
\r
-sub_034eh:\r
+get_arg_range_target:\r
call get_arg_range\r
push hl\r
push bc\r
call next_arg\r
- call sub_0363h\r
+ call get_arg_final\r
ex de,hl\r
pop bc\r
pop hl\r
jr c,error0\r
ret\r
\r
-sub_0363h:\r
+get_arg_final:\r
call sub_035dh\r
l0366h:\r
jp assert_eol\r
jr l0366h\r
\r
b_037c_start:\r
- defb 0e6h\r
+ defb 0e6h ;and a,.. clear carry\r
get_arg_range:\r
scf\r
ex af,af'\r
jr c,error0\r
ex af,af'\r
pop hl\r
- defb 03eh\r
+ defb 03eh ;ld a,.. swallow pop af\r
l038ch:\r
pop af\r
call get_range\r
inc de\r
l03a2h:\r
push hl\r
- push af\r
+ push af ;'S' flag\r
call expr\r
jr c,l03b8h\r
ld b,h\r
ld c,l\r
pop af\r
pop hl\r
- jr z,l03b6h\r
+ jr z,l03b6h ;'S'?\r
ld a,c\r
sub l\r
ld c,a\r
l03b8h:\r
pop af\r
pop hl\r
- jr z,error0\r
+ jr z,error0 ;'S', but no expression following\r
scf\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
expr:\r
call skipbl\r
expr1:\r
pop de\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
do_op_eq:\r
jr z,l03edh\r
jr l03ech\r
l0411h:\r
ld hl,tab_func_eqlege\r
ld a,b\r
- add a,a\r
- call add_hl_a\r
+ call add_hl_a2\r
ld c,(hl)\r
inc hl\r
ld b,(hl)\r
; de: r (x%y)\r
\r
div_hl_de:\r
- push bc\r
- ex de,hl\r
- ld b,h\r
- ld c,l\r
- ld hl,0\r
- ld a,16\r
+ push bc\r
+ ex de,hl ;de: x\r
+ ld b,h ;bc: y\r
+ ld c,l\r
+ ld hl,0 ;hl: r\r
+ ld a,16\r
\r
; de: x (x shifted out, q shifted in)\r
; bc: y\r
; hl: r (initially 0)\r
\r
-l047eh:\r
- push af\r
- add hl,hl\r
- ex de,hl\r
- xor a\r
- add hl,hl\r
- ex de,hl\r
- adc a,l\r
- sub c\r
- ld l,a\r
- ld a,h\r
- sbc a,b\r
- ld h,a\r
- inc de\r
- jr nc,l048fh\r
- add hl,bc\r
- dec de\r
-l048fh:\r
- pop af\r
- dec a\r
- jr nz,l047eh\r
- ex de,hl\r
- pop bc\r
+div_lp:\r
+ ex de,hl\r
+ add hl,hl ;x <<= 1\r
+ ex de,hl\r
+ adc hl,hl ;r <<= 1\r
+ inc de\r
+ or a\r
+ sbc hl,bc\r
+ jr nc,div_norestore\r
+ dec de\r
+ add hl,bc\r
+div_norestore:\r
+ dec a\r
+ jr nz,div_lp\r
+ ex de,hl\r
+ pop bc\r
ret\r
\r
doop_and:\r
call lookupch\r
ld a,b\r
ld hl,tblf_opa\r
- add a,a\r
- call add_hl_a\r
+ call add_hl_a2\r
ld c,(hl)\r
inc hl\r
ld b,(hl)\r
dw doop_xor\r
dw 0\r
\r
+;-------------------------------------------------------------------------------\r
+\r
fact_factor:\r
call do_factor\r
ret nc\r
jp ERROR\r
\r
do_factor:\r
- call chk_sp\r
+ call chk_stack\r
call get.number\r
ret nc\r
inc de\r
ld hl,(BDOS+1)\r
+ dec hl\r
cp 'T'\r
ret z\r
ld hl,(high_load)\r
ld hl,(var.$)\r
cp '$'\r
ret z\r
+ ld hl,ddtz_base\r
+ cp 'Z'\r
+ ret z\r
cp '-'\r
jr z,fact_factneg\r
cp '~'\r
cp '('\r
jr z,fact_mem\r
cp '['\r
- jp z,expr_brckt\r
+ jr z,expr_brckt\r
cp ''''\r
jr z,fact_factstring\r
+ cp '.'\r
+ jr z,fact_symbol\r
dec de\r
scf\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
fact_reg.Y:\r
call get.decdigit\r
- jp c,ERROR\r
+ jr c,error1\r
inc de\r
- add a,a\r
+get_y_val:\r
ld hl,reg_Y\r
- call add_hl_a\r
+ call add_hl_a2\r
ld a,(hl)\r
inc hl\r
ld h,(hl)\r
\r
fact_reg.CPU:\r
call sub_0caeh\r
- jr nc,error4\r
+ jr nc,error1\r
ld a,(hl)\r
inc hl\r
ld h,(hl)\r
ld l,a\r
- and a\r
+ xor a ;clr cy, a=0\r
bit 0,c\r
ret nz\r
- ld h,000h\r
+ ld h,a\r
ret\r
\r
+fact_factinv:\r
+ call fact_factor\r
+ jr cpl.hl\r
+\r
fact_factneg:\r
call fact_factor\r
+neg.hl:\r
dec hl\r
cpl.hl:\r
ld a,h\r
ld l,a\r
ret\r
\r
-fact_factinv:\r
- call fact_factor\r
- jr cpl.hl\r
-\r
fact_mem:\r
call expr1\r
- jr c,error4\r
+ jr c,error1\r
ld a,(de)\r
cp ')'\r
- jr nz,error4\r
+ jr nz,error1\r
inc de\r
ld a,(hl)\r
inc hl\r
\r
expr_brckt:\r
call expr1\r
- jr c,error4\r
+ jr c,error1\r
ld a,(de)\r
cp ']'\r
inc de\r
ret z\r
-error4:\r
+error1:\r
jp ERROR\r
\r
+fact_symbol:\r
+ push bc\r
+ ld hl,ddtz_base ;symtbl start\r
+ ld a,(symattrib)\r
+ ld c,07fh\r
+ rra\r
+ jr c,fs_nxtsym\r
+ res 5,c\r
+\r
+fs_nxtsym:\r
+ ld a,(hl) ;symlen\r
+ cp 0c3h\r
+ jr z,error1\r
+ ld b,a ;symlen\r
+ inc b\r
+ push hl ;symtbl ptr\r
+ push de ;inpsym ptr\r
+fs_nxtchar:\r
+ ld a,(de)\r
+ djnz fs_3\r
+ call test_sym_char\r
+ jr z,fs_cont\r
+ pop hl ;inpsym ptr (discard)\r
+ inc de\r
+ cp a,':'\r
+ jr z,fs_cont_1\r
+ dec de\r
+\r
+ pop hl ;symtbl ptr\r
+ inc hl\r
+ ld a,(hl) ;symval h\r
+ inc hl\r
+ ld h,(hl) ;symval l\r
+ ld l,a\r
+ or a ;clear carry\r
+ pop bc\r
+ ret\r
+\r
+fs_3:\r
+ inc de\r
+ dec hl\r
+ xor (hl)\r
+ and c\r
+ jr z,fs_nxtchar\r
+fs_cont: ;start over\r
+ pop de ;inpsym ptr\r
+fs_cont_1:\r
+ pop hl ;symtbl ptr\r
+ ld a,(hl)\r
+ add a,3\r
+ call sub_hl_a\r
+ jr fs_nxtsym\r
+\r
+;-------------------------------------------------------------------------------\r
+\r
get.number:\r
call get.hexdigit\r
ret c\r
jr next_bindigit\r
l05e4h:\r
cp '"'\r
- jp nz,ERROR\r
+ jr nz,error11\r
call get.bindigit\r
jr nc,l05dbh\r
or a\r
decnum_done:\r
cp '.'\r
ret z\r
+error11:\r
jp ERROR\r
\r
sub_060ch:\r
- ld a,(de)\r
- cp '['\r
+ call get_char_upper\r
+ cp 'Z'+1\r
jr l0614h\r
\r
get.hexdigit:\r
ld a,(de)\r
hex_digit:\r
+ call toupper\r
cp 'F'+1\r
l0614h:\r
ccf\r
ret\r
\r
get.decdigit:\r
- ld a,(de)\r
+ call get_char_upper\r
l061eh:\r
cp '9'+1\r
jr l0625h\r
\r
get.bindigit:\r
- ld a,(de)\r
+ call get_char_upper\r
cp '1'+1\r
l0625h:\r
ccf\r
sub '0'\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
p_cpustat0:\r
call assert_eol\r
p_cpustat:\r
push de\r
ld iy,(reg.pc)\r
call p_disas_instr\r
- exx\r
- ex af,af'\r
+ pop de\r
+ ex (sp),hl\r
+ push af\r
call crlf\r
call p_f2\r
call outbl2\r
- pop de\r
- pop hl\r
ld b,7\r
l065bh:\r
call p_regs\r
djnz l065bh\r
- exx\r
- ex af,af'\r
- and a\r
- jr z,l066bh\r
- call outbl6\r
- call p_offset\r
-l066bh:\r
+ pop af\r
+ pop hl\r
+ call nz,outbl6\r
+ call nz,p_offset\r
jp crlf\r
\r
p_f:\r
call p_flags\r
ld a,(reg.iff)\r
cp 0f3h\r
- jp z,outbl\r
+ jr z,outbl_1\r
ld a,'E'\r
jp outchar\r
p_f2:\r
ld a,(reg.f2)\r
call p_flags\r
- jp outbl\r
+ jr outbl_1\r
+\r
p_flags:\r
- ld b,a\r
- ld a,'S'\r
- call sub_06aah\r
- ld a,'Z'\r
- call sub_06aah\r
- rl b\r
- ld a,'H'\r
- call sub_06aah\r
- rl b\r
- ld a,'V'\r
- call sub_06aah\r
- ld a,'N'\r
- call sub_06aah\r
- ld a,'C'\r
-sub_06aah:\r
- rl b\r
- jp c,outchar\r
- jp outbl\r
+ push hl\r
+ ld hl,t_flag_names+7\r
+ ld c,a\r
+ ld b,8\r
+fl_loop:\r
+ ld a,' '\r
+ cp (hl)\r
+ ld a,c\r
+ rlca\r
+ ld c,a\r
+ jr z,fl_skip\r
+ ld a,(hl)\r
+ call c,outchar\r
+ call nc,outbl\r
+fl_skip:\r
+ dec hl\r
+ djnz fl_loop\r
+ pop hl\r
+ ret\r
\r
p_regs:\r
- push bc\r
push de\r
call pstr\r
- ld a,'='\r
- call outchar\r
+ call pstr_inl\r
+ dc '='\r
ex (sp),hl\r
ld e,(hl)\r
inc hl\r
push hl\r
and a\r
jr z,l06deh\r
- push af\r
- ld a,(de)\r
- ld l,a\r
- inc de\r
- ld a,(de)\r
- ld h,a\r
- pop af\r
+ ex de,hl\r
+ ld e,(hl)\r
+ inc hl\r
+ ld d,(hl)\r
+ ex de,hl\r
dec a\r
jr z,l06d9h\r
call out.hl.@\r
ld a,(de)\r
call out_hex\r
l06e2h:\r
- call outbl\r
pop de\r
pop hl\r
- pop bc\r
- ret\r
+outbl_1:\r
+ jp outbl\r
\r
b_06e9_start:\r
DC 'A '\r
db 000h\r
db 000h\r
\r
+;-------------------------------------------------------------------------------\r
+; > G [startaddr] [;breakp..]\r
+; Go [to start] [with temporary breakpoints]\r
+\r
cmd_G:\r
sub a\r
ld (trace_call_flag),a\r
- ld (l0941h),a\r
+ ld (bp_p_cpu_flag),a\r
call expr\r
jr c,l0740h\r
ld (reg.pc),hl\r
l0740h:\r
call skipbl\r
- jp z,user_go\r
+ jr z,user_go0\r
cp ';'\r
jp nz,ERROR\r
inc de\r
ld a,002h\r
call bp_enter\r
+user_go0:\r
jp user_go\r
\r
+;-------------------------------------------------------------------------------\r
+\r
+bpl_init:\r
+ ld b,BP_CNT\r
+ ld ix,bp_tab\r
+ ex (sp),hl\r
+ ld (pbl_loop_adr),hl\r
+ ex (sp),hl\r
+ ret\r
+\r
+bpl_next:\r
+ ld de,BP_SIZE\r
+ push af\r
+ add ix,de\r
+ pop af\r
+ dec b\r
+ ret z\r
+\r
+ ex (sp),hl\r
+ ld hl,(pbl_loop_adr)\r
+ ex (sp),hl\r
+ ret\r
+\r
bp_clr_temporary:\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-l075ah:\r
+ call bpl_init\r
+\r
ld a,(ix+000h)\r
and 0f1h\r
ld (ix+000h),a\r
call bp_clr_condition\r
- ld de,BP_SIZE\r
- add ix,de\r
- djnz l075ah\r
+\r
+ call bpl_next\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; > B\r
+; display all breakpoints\r
+; > B breakp [breakp..]\r
+; set breakpoints\r
+; > BX\r
+; clear all breakpoints\r
+; > BX address [address..]\r
+; clear breakpoints\r
+;\r
+; where breakp is:\r
+; [R] expression [I condition]\r
+\r
cmd_B:\r
call skipbl\r
- jr z,l07b7h\r
+ jr z,bp_print\r
inc de\r
cp 'X'\r
- jr z,l077dh\r
+ jr z,bp_clr0\r
dec de\r
ld a,001h\r
jp bp_enter\r
-l077dh:\r
+\r
+bp_clr0:\r
call skipbl\r
jr z,bp_clr_all\r
-l0782h:\r
+bp_clr_next:\r
call expr\r
jp c,assert_eol\r
push de\r
call bp_clr\r
pop de\r
call next_arg\r
- jr l0782h\r
+ jr bp_clr_next\r
\r
bp_clr_all:\r
scf\r
bp_clr:\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-l0799h:\r
+ call bpl_init\r
+\r
push af\r
jr c,l07a7h\r
ld e,(ix+002h)\r
ld (ix+000h),000h\r
call bp_clr_condition\r
l07aeh:\r
- ld de,BP_SIZE\r
- add ix,de\r
pop af\r
- djnz l0799h\r
+ call bpl_next\r
ret\r
\r
-l07b7h:\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-l07bdh:\r
+bp_print:\r
+ call bpl_init\r
+\r
bit 0,(ix+000h)\r
- jr z,l0808h\r
+ jr z,bp_pr_cont\r
ld a,'R'\r
bit 4,(ix+000h)\r
jr nz,l07cdh\r
ld l,(ix+002h)\r
ld h,(ix+003h)\r
call out.hl.@\r
- call outbl2\r
- ld a,':'\r
- call outchar\r
+ call outbl\r
+ call p_symbol\r
+ ld c,9\r
+ call p_align_@_sym\r
+ call pstr_inl\r
+ dc ':'\r
ld l,(ix+004h)\r
ld h,(ix+005h)\r
call out_hl\r
or l\r
jr z,l0805h\r
call outbl4\r
- ld a,'I'\r
- call outchar\r
- call outbl2\r
+ call pstr_inl\r
+ dc 'I '\r
call pstr\r
l0805h:\r
call crlf\r
-l0808h:\r
- ld de,BP_SIZE\r
- add ix,de\r
- djnz l07bdh\r
+bp_pr_cont:\r
+ call bpl_next\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
; Add break points to list\r
; A = 1 Permanent (B command)\r
; A = 2 Temporary (G command)\r
call skipbl\r
ret z\r
cp 'R'\r
- jr nz,l081ch\r
+ jr nz,bp_e_1\r
inc de\r
set 4,b\r
-l081ch:\r
+bp_e_1:\r
push bc\r
call expr\r
- jp c,ERROR\r
+ jr c,error12\r
pop bc\r
bit 0,b\r
push bc\r
jr bp_enter\r
\r
bp_get_freeslot:\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-l085ah:\r
+ call bpl_init\r
+\r
ld a,(ix+000h)\r
and 00fh\r
ret z\r
- push bc\r
- ld bc,BP_SIZE\r
- add ix,bc\r
- pop bc\r
- djnz l085ah\r
+\r
+ call bpl_next\r
+error12\r
jp ERROR\r
\r
bp_get_count:\r
ret nz\r
inc de\r
call expr\r
- jp c,ERROR\r
+ jr c,error12\r
ret\r
\r
bp_get_condition:\r
call skipbl\r
push de\r
call expr\r
- jp c,ERROR\r
+ jr c,error12\r
ex de,hl\r
pop de\r
push de\r
add hl,bc\r
ld de,expr_bufe\r
call cp_hl_de\r
- jp nc,ERROR\r
- pop hl\r
- ld (expr_p2),hl\r
- pop de\r
- ex de,hl\r
+ jr nc,error12\r
+ pop de\r
+ pop hl\r
+ push de\r
ldir\r
- xor a\r
- ld (de),a\r
- inc de\r
ex de,hl\r
+ ld (hl),c ; trailing 0\r
+ inc hl\r
ld (expr_p1),hl\r
- ld hl,(expr_p2)\r
+ pop hl\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; Breakpoint handling routine.\r
+\r
bpddtz:\r
ld (reg.l),hl\r
pop hl\r
push ix\r
push iy\r
ld a,i\r
- call sub_0004h\r
+ call di_or_ei\r
ld h,a\r
ld l,000h\r
push hl\r
- ld a,0f3h\r
+ ld a,0f3h ; EI\r
jp po,l08dfh\r
- ld a,0fbh\r
+ ld a,0fbh ; DI\r
l08dfh:\r
ld (reg.iff),a\r
ex af,af'\r
push bc\r
push de\r
push hl\r
- call sub_097ah\r
+ call bp_restore_mem\r
ld a,(b_21e2_start)\r
dec a\r
jr z,l090bh\r
- call inchar\r
- jr c,l0902h\r
+ call inchar ;Keyboard hit?\r
+ jr c,do_break ;yes\r
call sub_0913h\r
and a\r
jp z,user_go\r
and 083h\r
jp z,l2151h\r
-l0902h:\r
+do_break:\r
call bp_clr_temporary\r
call p_cpustat\r
jp mainloop\r
ld a,080h\r
ex af,af'\r
sub a\r
- ld (l0941h),a\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-l0920h:\r
+ ld (bp_p_cpu_flag),a\r
+ call bpl_init\r
+\r
ld a,(ix+000h)\r
and 007h\r
jr z,l0938h\r
call z,sub_0942h\r
pop bc\r
l0938h:\r
- ld de,BP_SIZE\r
- add ix,de\r
- djnz l0920h\r
+\r
+ call bpl_next\r
ex af,af'\r
ret\r
\r
bit 4,(ix+000h)\r
ret z\r
ld a,001h\r
- ld (l0941h),a\r
+ ld (bp_p_cpu_flag),a\r
ret\r
l0974h:\r
ex af,af'\r
ex af,af'\r
ret\r
\r
-sub_097ah:\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-l0980h:\r
+bp_restore_mem:\r
+ call bpl_init\r
+\r
bit 5,(ix+000h)\r
res 5,(ix+000h)\r
jr z,l099ah\r
ld (hl),a\r
l099ah:\r
res 3,(ix+000h)\r
- ld de,BP_SIZE\r
- add ix,de\r
- djnz l0980h\r
+\r
+ call bpl_next\r
ret\r
\r
-sub_09a6h:\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-l09ach:\r
+bp_tst_@pc:\r
+ call bpl_init\r
+\r
ld a,(ix+000h)\r
- and 003h\r
- jr z,l09c0h\r
+ and 003h ;User bp (temporary or permanent)?\r
+ jr z,bp_tst_e ;No, check next\r
ld e,(ix+002h)\r
ld d,(ix+003h)\r
ld hl,(reg.pc)\r
- call cp_hl_de\r
- ret z\r
-l09c0h:\r
- ld de,BP_SIZE\r
- add ix,de\r
- djnz l09ach\r
+ call cp_hl_de ;Current PC is on a User bp\r
+ ret z ;Return zero\r
+bp_tst_e:\r
+ call bpl_next\r
sub a\r
- inc a\r
- ret\r
+ inc a ;Not on a user bp\r
+ ret ;Return not zero\r
\r
-sub_09cah:\r
+bp_trace_enter:\r
call bp_get_freeslot\r
ld (ix+004h),001h\r
ld (ix+005h),000h\r
ld a,(b_21e2_start)\r
and a\r
ld a,008h\r
- jr nz,l09edh\r
- ld a,004h\r
-l09edh:\r
+ jr nz,bp_t_e\r
+ rra\r
+bp_t_e:\r
ld (ix+000h),a\r
ret\r
\r
-sub_09f1h:\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-l09f7h:\r
+bp_set_to_mem:\r
+ call bpl_init\r
+\r
ld a,(ix+000h)\r
and c\r
jr z,l0a1dh\r
inc hl\r
ld (hl),d\r
l0a1dh:\r
- ld de,BP_SIZE\r
- add ix,de\r
- djnz l09f7h\r
+ call bpl_next\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
user_go:\r
sub a\r
ld (b_21e2_start),a\r
- ld a,(l0941h)\r
+ ld a,(bp_p_cpu_flag)\r
and a\r
call nz,p_cpustat\r
- call sub_09a6h\r
+ call bp_tst_@pc\r
ld c,007h\r
jr nz,l0a41h\r
ld a,001h\r
ld (b_21e2_start),a\r
- call sub_1ffeh\r
+ call tc_set_bp\r
ld c,008h\r
l0a41h:\r
- call sub_09f1h\r
+ call bp_set_to_mem\r
ld sp,reg.l2\r
pop hl\r
pop de\r
ld sp,(reg_sp)\r
jp reg.iff\r
\r
+;-------------------------------------------------------------------------------\r
+\r
bp_clr_condition:\r
ld a,(ix+000h)\r
and 003h\r
- ret nz\r
+ ret nz ; No (user) bp set\r
ld e,(ix+006h)\r
ld d,(ix+007h)\r
ld a,d\r
or e\r
- ret z\r
+ ret z ; No conditional expression\r
push bc\r
ld h,d\r
ld l,e\r
ld (iy+007h),d\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; > Y\r
+; examine all Y variables\r
+; > Y[0..9]\r
+; examine (and substitute) an Y variable\r
+\r
cmd_Y:\r
call get.decdigit\r
jr c,l0bc3h\r
l0bc7h:\r
push af\r
call sub_0bdch\r
- call outbl4\r
+ call outbl\r
+ pop af\r
+ push af\r
+ call get_y_val\r
+ call p_symbol\r
pop af\r
inc a\r
- bit 0,a\r
push af\r
- call z,crlf\r
+ rra\r
+ push af\r
+ ld c,11\r
+ call c,p_align_@_sym\r
+ pop af\r
+ call nc,crlf\r
pop af\r
cp YREG_CNT\r
jr c,l0bc7h\r
add hl,bc\r
ex de,hl\r
ld c,003h\r
- jp l0c33h\r
+ jr l0c33h\r
+\r
+;-------------------------------------------------------------------------------\r
+; > X\r
+; eXamine (display) all cpu registers and\r
+; the instruction at the current program counter\r
+; > X register\r
+; eXamine (and substitute) a register\r
+\r
\r
cmd_X:\r
call skipbl\r
jp nc,p_cpustat0\r
call assert_eol\r
ld a,b\r
- cp 01eh\r
+ cp 30\r
jr z,l0c5fh\r
- cp 01fh\r
+ cp 31\r
jr z,l0c4fh\r
- cp 01dh\r
+ cp 29\r
jp z,ERROR\r
ex de,hl\r
- ld hl,b_0cc3_start\r
- call sel_dc_string\r
+ ld hl,t_reg_names\r
+ call str_sel\r
l0c12h:\r
call l0c33h\r
l0c15h:\r
call get_line\r
call skipbl\r
jr z,l0c30h\r
- call sub_0363h\r
- ld b,h\r
- ld c,l\r
- pop af\r
+ call get_arg_final\r
+ ex de,hl\r
+ pop bc\r
pop hl\r
- ld (hl),c\r
- bit 0,a\r
+ ld (hl),e\r
+ bit 0,c\r
ret z\r
inc hl\r
- ld (hl),b\r
+ ld (hl),d\r
ret\r
l0c30h:\r
pop af\r
ret\r
\r
l0c33h:\r
- ld b,c\r
call pstr\r
- ld a,'='\r
- call outchar\r
+ call pstr_inl\r
+ dc '='\r
ld a,(de)\r
- bit 0,b\r
+ bit 0,c\r
jp z,out_hex\r
ld l,a\r
inc de\r
ld a,(de)\r
dec de\r
ld h,a\r
- bit 1,b\r
+ bit 1,c\r
jp z,out_hl\r
jp out.hl.@\r
\r
call sub_0c6ah\r
ld (reg.f2),a\r
ret\r
+\r
sub_0c6ah:\r
- ex af,af'\r
- ld b,000h\r
+ push af\r
call outbl\r
call assert_eol\r
call get_line\r
+ pop af\r
+ ex af,af'\r
+ ld b,0\r
l0c76h:\r
call skipbl\r
ld a,b\r
ret z\r
push bc\r
- ld hl,b_0ca4_start\r
+ ld hl,t_flag_names\r
call lookupch\r
jp nc,ERROR\r
- ld a,b\r
- cp 008h\r
- jr z,l0c97h\r
- pop bc\r
- rlca\r
- rlca\r
- rlca\r
- add a,0c0h\r
- ld (l0c94h),a\r
- defb 0cbh\r
-l0c94h:\r
- defb 0c0h\r
+ inc b\r
+ xor a\r
+ scf\r
+nxt_f:\r
+ rla\r
+ djnz nxt_f\r
+ pop bc\r
+ jr c,l0c97h\r
+ or b\r
+ ld b,a\r
jr l0c76h\r
+\r
l0c97h:\r
ex af,af'\r
jp nc,ERROR\r
ex af,af'\r
ld a,0fbh\r
ld (reg.iff),a\r
- pop bc\r
jr l0c76h\r
\r
-b_0ca4_start:\r
+t_flag_names:\r
db 'CNV H ZSE',0\r
\r
sub_0caeh:\r
scf\r
ret\r
\r
-b_0cc3_start:\r
- DC 'BC'''\r
- DC 'DE'''\r
- DC 'HL'''\r
- DC 'BC'\r
- DC 'DE'\r
- DC 'HL'\r
- DC 'A'''\r
- DC 'B'''\r
- DC 'C'''\r
- DC 'D'''\r
- DC 'E'''\r
- DC 'H'''\r
- DC 'L'''\r
- DC 'A'\r
- DC 'B'\r
- DC 'C'\r
- DC 'D'\r
- DC 'E'\r
- DC 'H'\r
- DC 'L'\r
- DC 'IX'\r
- DC 'IY'\r
- DC 'SP'\r
- DC 'PC'\r
- DC 'X'\r
- DC 'Y'\r
- DC 'S'\r
- DC 'P'\r
- DC 'I'\r
- DC 'IP'\r
- DC 'F'''\r
- DC 'F'\r
+t_reg_names:\r
+ DC 'BC''' ;0\r
+ DC 'DE''' ;1\r
+ DC 'HL''' ;2\r
+ DC 'BC' ;3\r
+ DC 'DE' ;4\r
+ DC 'HL' ;5\r
+ DC 'A''' ;6\r
+ DC 'B''' ;7\r
+ DC 'C''' ;8\r
+ DC 'D''' ;9\r
+ DC 'E''' ;10\r
+ DC 'H''' ;11\r
+ DC 'L''' ;12\r
+ DC 'A' ;13\r
+ DC 'B' ;14\r
+ DC 'C' ;15\r
+ DC 'D' ;16\r
+ DC 'E' ;17\r
+ DC 'H' ;18\r
+ DC 'L' ;19\r
+ DC 'IX' ;20\r
+ DC 'IY' ;21\r
+ DC 'SP' ;22\r
+ DC 'PC' ;23\r
+ DC 'X' ;24\r
+ DC 'Y' ;25\r
+ DC 'S' ;26\r
+ DC 'P' ;27\r
+ DC 'I' ;28\r
+ DC 'IP' ;29\r
+ DC 'F''' ;30\r
+ DC 'F' ;31\r
DB 0\r
\r
b_0cfa_start:\r
db 000h\r
dw reg.f\r
\r
+;-------------------------------------------------------------------------------\r
+; > S [startaddr]\r
+; Substitute memory\r
+\r
cmd_S:\r
ld hl,(last_S)\r
call get_lastarg_def\r
dec hl\r
inc de\r
cp '.'\r
+ jr nz,cmds_dash\r
+ call get_char_upper\r
+ or a\r
+ jr nz,l0d8ah\r
+ ret\r
+cmds_dash:\r
jp z,assert_eol\r
cp '-'\r
jr nz,l0d8ah\r
- ld a,(de)\r
+ call get_char_upper\r
or a\r
dec hl\r
jr z,l0d60h\r
call sub_0ef8h\r
jr l0d60h\r
\r
+;-------------------------------------------------------------------------------\r
+; > @\r
+; examine (substitute) displacement register @\r
+\r
cmd_@:\r
call assert_eol\r
ld hl,msg_@\r
msg_@:\r
dc '@'\r
\r
+;-------------------------------------------------------------------------------\r
+; >>I [port]\r
+; Input a byte from port\r
+\r
cmd_I:\r
- ld hl,cmd_I\r
ld (cmd_rpt),hl\r
ld hl,(last_I)\r
call get_lastarg_def\r
call out.bin.b\r
jp crlf\r
\r
+;-------------------------------------------------------------------------------\r
+; >>O [byte] [port]\r
+; Output a byte to a port\r
+\r
cmd_O:\r
- ld hl,cmd_O\r
ld (cmd_rpt),hl\r
ld hl,(last_O_val)\r
call get_arg_def\r
out (c),a\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; > Vstartaddr endaddr targetaddr\r
+; Verify (compare) two memory areas\r
+\r
cmd_V:\r
- call sub_034eh\r
+ call get_arg_range_target\r
l0dedh:\r
push bc\r
ld a,(de)\r
call crlf\r
l0e10h:\r
pop bc\r
- inc hl\r
inc de\r
- dec bc\r
- ld a,b\r
- or c\r
- jr nz,l0dedh\r
+ cpi\r
+ jp pe,l0dedh\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; > M[V] startaddr endaddr destaddr\r
+; Move memory [and verify]\r
+\r
cmd_M:\r
- ld a,(de)\r
+ call get_char_upper\r
cp 'V'\r
jr nz,l0e1fh\r
inc de\r
l0e1fh:\r
push af\r
- call sub_034eh\r
+ call get_arg_range_target\r
push hl\r
push de\r
push bc\r
call cp_hl_de\r
- jr nc,$+11\r
+ jr nc,cmdm_up\r
add hl,bc\r
ex de,hl\r
add hl,bc\r
dec hl\r
dec de\r
lddr\r
- ld bc,0b0edh\r
+ db 01h ;swallow ldir instruction (ld bc,...)\r
+cmdm_up:\r
+ ldir\r
pop bc\r
pop de\r
pop hl\r
jr z,l0dedh\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; > H\r
+; display Highest load address of last filed loaded, Maximum "High"\r
+; off all loaded files, and Top address of available memory\r
+; > HS\r
+; display symbol list\r
+; > H expression\r
+; evaluate expression and display result in hex, decimal and other formats\r
+; > H expression expression\r
+; display sum und difference of expressions\r
+\r
cmd_H:\r
+ call get_char_upper\r
+ cp 'S'\r
+ jr z,p_sym_list\r
+\r
call expr\r
jp c,p_max_high0\r
call next_arg\r
call out_hl_dec_neg\r
call outbl4\r
call out.bin.w\r
- call outbl2\r
+ call outbl\r
ld a,l\r
call out.ascii\r
+ call outbl2\r
+ call p_symbol\r
jp crlf\r
\r
+p_sym_list:\r
+ inc de\r
+ call assert_eol\r
+ ld a,(symlen_cur)\r
+ add a,7\r
+ ld b,a\r
+ ld c,0\r
+ ld hl,ddtz_base+2\r
+psym_nxtsym:\r
+ ld d,(hl)\r
+ dec hl\r
+ ld e,(hl)\r
+ dec hl\r
+ ld a,(hl)\r
+ cp 0c3h\r
+ jr z,psym_e\r
+\r
+ call p_goto_col\r
+ ex de,hl\r
+ call out_hl\r
+ call outbl\r
+ ex de,hl\r
+ call p_symstr\r
+\r
+ ld a,c\r
+ add b\r
+ ld c,a\r
+ ld a,(screen_width)\r
+ sub b\r
+ cp c\r
+ jr nc,psym_nxtsym\r
+\r
+ call crlf\r
+ ld c,0\r
+ jr psym_nxtsym\r
+\r
+psym_e:\r
+ ld a,c\r
+ or a\r
+ ret z\r
+ jp crlf\r
+\r
+\r
+;-------------------------------------------------------------------------------\r
+; > Q[J] startaddr endaddr bytes\r
+; Query memory for a byte string [Justified]\r
+\r
cmd_Q:\r
- ld a,(de)\r
+ call get_char_upper\r
sub 'J'\r
ld (cmd_Q_jopt),a\r
jr nz,l0e8dh\r
add hl,bc\r
l0ea7h:\r
ld bc,16\r
- and a\r
+ and a ;clear carry\r
call sub_0f58h\r
pop hl\r
pop bc\r
pop bc\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; > Z startaddr endaddr bytes\r
+; Zap (fill) memory with a byte string\r
+\r
cmd_Z:\r
call get_arg_range\r
push bc\r
ret nz\r
jp ERROR\r
\r
-sub_0ef7h:\r
+sub_0ef7h: ;from cmd_Q, cmd_Z\r
db 0e6h ; and 037h (clear carry)\r
-sub_0ef8h:\r
+sub_0ef8h: ;from cmd_S\r
scf\r
l0ef9h:\r
push af\r
ld (last_S),hl\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; >>D [startaddr] [endaddr]\r
+; Display memory in hex and ASCII\r
+\r
cmd_D:\r
- ld hl,cmd_D\r
ld (cmd_rpt),hl\r
ld hl,(last_D)\r
ld bc,128\r
push bc\r
push de\r
push hl\r
- ex af,af'\r
+ push af\r
l0f5ch:\r
call out.hl.@\r
call z,outbl2\r
inc hl\r
dec e\r
jr nz,l0f86h\r
- ex af,af'\r
+ pop af\r
+ push af\r
jr nc,l0f97h\r
ld (last_D),hl\r
l0f97h:\r
- ex af,af'\r
call crlf\r
ld a,b\r
or c\r
jr nz,l0f5ch\r
+ pop af\r
pop hl\r
pop de\r
pop bc\r
ld a,'.'\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; > Fcommandline\r
+; specifiy filenames and command line\r
+\r
cmd_F:\r
push de\r
ld hl,DMA_BUF+1\r
ld (hl),' '\r
inc hl\r
l0fb6h:\r
- ld a,(de)\r
+ call get_char_upper\r
ld (hl),a\r
inc hl\r
inc de\r
cp '.'\r
ret z\r
ld c,'?'\r
+ call toupper\r
cp '*'\r
ret\r
\r
cp ','\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
setup_fcb:\r
push de\r
ld hl,12\r
pop de\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
file_open:\r
ld (cur_fcb),de\r
call setup_fcb\r
cp 080h\r
jr nz,l1111h\r
call read_sector\r
+ ld a,01ah\r
ret z\r
sub a\r
l1111h:\r
ld de,(cur_fcb)\r
ld c,BDOS_READ\r
call ddtz_bdos\r
- dec a\r
+ sub a,1\r
jr z,l1132h\r
- jp p,ERROR\r
+ jr nc,error2\r
l1132h:\r
pop bc\r
pop de\r
push de\r
ld de,TPA\r
call cp_hl_de\r
- jp c,ERROR\r
+ jr c,error2\r
ld de,(BDOS+1)\r
call cp_hl_de\r
- jp nc,ERROR\r
+ jr nc,error2\r
ld de,(high_load)\r
call cp_hl_de\r
jr c,l1157h\r
\r
read_hexdigit:\r
call read_byte\r
- jr z,error8\r
+ jr z,error2\r
hex_digit_v:\r
call hex_digit\r
ret nc\r
-error8:\r
+error2:\r
jp ERROR\r
\r
read_hexbyte:\r
pop bc\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; > R [displacement]\r
+; Read a binary or hex file and or symbol file [add displacement]\r
+\r
cmd_R:\r
ld hl,0\r
call get_lastarg_def\r
pop hl\r
jr z,read_hexfile\r
ld de,TPA\r
- add hl,de\r
push hl\r
+ add hl,de\r
l108eh:\r
call read_sector\r
+ jr nz,read_file_nxt\r
pop hl\r
- jr z,read_symfile\r
+ jr read_symfile\r
+\r
+read_file_nxt:\r
ld de,DMA_BUF\r
ld b,080h\r
l109ah:\r
inc de\r
inc hl\r
djnz l109ah\r
- push hl\r
jr l108eh\r
\r
read_hexfile:\r
push hl\r
l10aeh:\r
- call read_byte\r
+ call read_byte ; RECORD MARK\r
jr z,rdhex_done\r
cp ':'\r
jr nz,l10aeh\r
ld c,0\r
- call read_hexchar\r
+ call read_hexchar ; RECLEN\r
ld b,a\r
- call read_hexchar\r
+ call read_hexchar ; LOAD ADDR H\r
ld h,a\r
- call read_hexchar\r
+ call read_hexchar ; LOAD ADDR L\r
ld l,a\r
ld a,b\r
and a\r
jr z,rdhex_done\r
- call read_hexchar\r
+ call read_hexchar ; RECTYP\r
l10cch:\r
- call read_hexchar\r
+ call read_hexchar ; DATA\r
pop de\r
push de\r
push hl\r
pop hl\r
inc hl\r
djnz l10cch\r
- call read_hexchar\r
+ call read_hexchar ; CHKSUM\r
ld a,c\r
and a\r
- jr nz,error9\r
+ jr nz,error3\r
jr l10aeh\r
rdhex_done:\r
pop hl\r
cp ' '\r
jp z,p_max_high\r
\r
+ push hl ; offset\r
call pstr_inl\r
db 'SYMBOLS',CR,LF+80h\r
\r
- dec de\r
- call file_open\r
-;------------------------------------------------------------------------\r
+ dec de\r
+ call file_open\r
+ ld a,(symattrib)\r
+ ld c,a\r
rs_1:\r
call read_byte\r
rs_2:\r
+ pop de ; offset\r
cp 1ah\r
- jr z,p_max_high\r
+ jp z,p_max_high\r
+ push de ; offset\r
cp '!'\r
jr c,rs_1\r
- call read_hexbyte0\r
- ld d,a\r
- call read_hexbyte ; symval\r
- ld e,a\r
- push de ; symval\r
+ call read_hexbyte0 ; symval H\r
+ ld h,a\r
+ call read_hexbyte ; symval L\r
+ ld l,a\r
+ add hl,de\r
call read_byte\r
cp ' '\r
jr z,rs_4\r
- pop hl ; discard symval\r
rs_3: call read_byte\r
cp ' '\r
- jr c,rs_2\r
- jr rs_3\r
-;\r
-rs_4: ld hl,(BDOS+1) ;\r
- ld e,0 ; setup symlen\r
-rs_5: dec hl ;\r
- call read_byte ;\r
- cp TAB ;\r
- jr z,rs_6 ;\r
- cp CR ;\r
- jr z,rs_6 ;\r
- cp '!' ;\r
- jr c,error9 ;\r
+ jr nc,rs_3\r
+ jr rs_2\r
+\r
+rs_4:\r
+ push hl ; symval\r
+ ld hl,(BDOS+1) ;\r
+ ld b,0 ; setup symlen\r
+rs_5:\r
+ dec hl ;\r
+ call read_byte ; next char of symbol name\r
+ call test_sym_char ; valid char?\r
+ jr nz,rs_6\r
+ bit SYMCASE_CONV,c\r
+ jr z,rs_51\r
+ call toupper\r
+ bit SYMCASE_LOWER,c\r
+ call nz,tolower\r
+rs_51:\r
ld (hl),a ;\r
- inc e ; symlen++\r
- ld a,e ;\r
- cp 10h+1 ;\r
- jr c,rs_5 ;\r
-error9:\r
+ inc b ; symlen++\r
+ ld a,(symlen_max) ;\r
+ cp b ;\r
+ jr nc,rs_5 ;\r
+error3:\r
jp ERROR ;\r
-;\r
-rs_6: push de ; symlen\r
- push hl ;\r
+\r
+rs_6:\r
+ call test_symterm_ch\r
+ jr nz,error3\r
+\r
+ push bc ; symlen\r
ex de,hl ;\r
ld hl,(BDOS+1) ;\r
inc hl ;\r
- ld e,(hl) ;\r
+ ld c,(hl) ;\r
inc hl ;\r
- ld d,(hl) ;\r
- pop hl ;\r
- ld (hl),d ;\r
+ ld b,(hl) ;\r
+ ex de,hl\r
+ ld (hl),b ;\r
dec hl ;\r
- ld (hl),e ;\r
+ ld (hl),c ;\r
dec hl ;\r
ld (hl),0c3h ;\r
\r
ld de,(max_load) ;\r
call cp_hl_de ;\r
- jr c,error9 ;\r
-\r
+ jr c,error3 ;\r
ld de,(reg_sp) ;\r
call cp_hl_de ;\r
jr nc,rs_61 ;\r
ld (reg_sp),hl ;\r
rs_61:\r
-\r
ld de,(BDOS+1) ;\r
ld (BDOS+1),hl ;\r
ex de,hl ;\r
- pop de ;\r
- ld (hl),e ; symlen\r
+ pop bc ; symlen\r
+ ld (hl),b ;\r
inc hl ;\r
pop de ; symval\r
ld (hl),e ;\r
inc hl ;\r
ld (hl),d ;\r
+ ld a,b ;\r
+ ld hl,symlen_cur ;\r
+ cp (hl) ; new max?\r
+ jr c,$+3 ;\r
+ ld (hl),a ;\r
jp rs_1 ;\r
-;------------------------------------------------------------------------\r
+\r
+\r
+; test for valid character for symbols\r
+; return z if valid\r
+\r
+test_sym_char:\r
+ cp '$'\r
+ ret z\r
+ cp '%'\r
+ ret z\r
+ cp '.'\r
+ ret z\r
+ cp '_'\r
+ ret z\r
+ call test_alphanum\r
+ ret c ; cy == 1 --> z == 0\r
+ cp a ; return z\r
+ ret\r
+\r
+\r
+; check if char is in [0..9,?,@,A..Z,a..z]\r
+; return cy if invalid\r
+; return nc if valid alfanumeric char\r
+\r
+test_alphanum:\r
+ cp 'z'\r
+ ret z\r
+ ccf\r
+ ret c\r
+ cp 'a'\r
+ ret nc\r
+ cp 'Z'\r
+ ret z\r
+ ccf\r
+ ret c\r
+ cp '?'\r
+ ret nc\r
+test_numeral:\r
+ cp '9'\r
+ ret z\r
+ ccf\r
+ ret c\r
+ cp '0'\r
+ ret\r
+\r
+test_symterm_ch:\r
+ cp CR\r
+ ret z\r
+ cp LF\r
+ ret z\r
+test_whitespace:\r
+ cp ' '\r
+ ret z\r
+ cp TAB\r
+ ret\r
+\r
+;-------------------------------------------------------------------------------\r
\r
p_max_high0:\r
call assert_eol\r
DC ' Max = '\r
ld hl,(max_load)\r
call out_hl\r
+ call pstr_inl\r
+ DC ' Top = '\r
+ ld hl,(BDOS+1)\r
+ dec hl\r
+ call out_hl\r
jp crlf\r
\r
+;-------------------------------------------------------------------------------\r
+; > Wstartaddr endaddr\r
+; Write a file to disk\r
+\r
cmd_W:\r
call get_arg_range\r
call assert_eol\r
push bc\r
ld a,(dfcb1+1)\r
cp ' '\r
- jr z,error5\r
+ jr z,error4\r
ld de,dfcb1\r
call setup_fcb\r
push de\r
ld c,BDOS_CREATE\r
call ddtz_bdos\r
inc a\r
- jr z,error5\r
+ jr z,error4\r
pop bc\r
pop hl\r
l11cch:\r
and a\r
ret z\r
call close_file\r
-error5:\r
+error4:\r
jp ERROR\r
\r
close_file:\r
ld c,BDOS_CLOSE\r
jp ddtz_bdos\r
\r
+;-------------------------------------------------------------------------------\r
+; > A [startaddr]\r
+; Assemble Zilog Z180 mnemonics\r
+\r
cmd_A:\r
ld hl,(last_A)\r
call get_lastarg_def\r
- push hl\r
- pop iy\r
- ld hl,l1259h\r
+ ld (last_A),hl\r
+ ld (cmd_A_prev),hl\r
+ ld hl,cmda_restart\r
ld (error_func),hl\r
ld (l1262h),sp\r
-l1211h:\r
- push iy\r
- pop hl\r
- ld (last_A),hl\r
+cmda_loop:\r
+ ld hl,(last_A)\r
ld (var.$),hl\r
push hl\r
call p_disas_line\r
- pop iy\r
+ ld c,19\r
+ call p_align_@_sym\r
ld c,b\r
- ld de,(var.@)\r
- ld a,d\r
- or e\r
- ld b,011h\r
- jr z,l122dh\r
- ld b,019h\r
-l122dh:\r
- call outbl\r
- ld a,(con_col)\r
- cp b\r
- jr c,l122dh\r
push bc\r
call get_line\r
pop bc\r
+ pop hl\r
call skipbl\r
cp '.'\r
ret z\r
cp '-'\r
jr nz,l124bh\r
- ld iy,(cmd_A_prev)\r
- jr l1211h\r
+ ld hl,(cmd_A_prev)\r
+ jr cmda_lpend\r
l124bh:\r
+ push hl\r
+ pop iy\r
+ push hl\r
and a\r
- call nz,sub_1268h\r
- ld (cmd_A_prev),iy\r
+ call nz,asemble_line\r
ld b,0\r
- add iy,bc\r
- jr l1211h\r
+ pop hl\r
+ ld (cmd_A_prev),hl\r
+ add hl,bc\r
+cmda_lpend:\r
+ ld (last_A),hl\r
+ jr cmda_loop\r
\r
-l1259h:\r
- call l0146h\r
+cmda_restart:\r
+ call p_msg_error\r
ld sp,(l1262h)\r
- jr l1211h\r
+ jr cmda_loop\r
\r
-sub_1268h:\r
+asemble_line:\r
call skipbl\r
ld hl,t_MNEMONICS\r
call sub_030ah\r
- jp nc,ERROR\r
+ jr nc,error4\r
call skipbl\r
push de\r
ld a,b\r
CALL_HL:\r
jp (hl)\r
\r
+;-------------------------------------------------------------------------------\r
+\r
b_1289_start:\r
dw as.ADC_SBC ;ADC\r
db 088h ;\r
dw as.TSTIO ;TSTIO\r
db 074h ;\r
\r
+;-------------------------------------------------------------------------------\r
+\r
as.TST:\r
call arg.r_HL_A ;\r
jr nc,as.tst_0\r
\r
as.IN0:\r
call arg.r_HL_A ;\r
- jr nc,error7\r
+ jr nc,error5\r
cp 006h\r
- jr z,error7\r
+ jr z,error5\r
rlca\r
rlca\r
rlca\r
call arg.addr_8bit ;\r
call assert_comma ;\r
call arg.r_HL_A ;\r
- jr nc,error7\r
+ jr nc,error5\r
cp 006h\r
- jr z,error7\r
+ jr z,error5\r
rlca\r
rlca\r
rlca\r
\r
as.MLT:\r
call arg.ww ;\r
- jr nc,error7\r
+ jr nc,error5\r
add a,b\r
ld b,a\r
jp gen.opc.ED2\r
\r
-error7:\r
+error5:\r
jp ERROR\r
\r
as.LD:\r
jp c,l149ch\r
call arg.IX_IY\r
jp c,l14f5h\r
- ld a,(de)\r
+ call get_char_upper\r
cp 'I'\r
jp z,l1511h\r
cp 'R'\r
jp z,l1519h\r
cp '('\r
- jp nz,ERROR\r
+ jr nz,error5\r
inc de\r
call arg.ww\r
jp c,l1528h\r
l1395h:\r
call assert_eol\r
ld a,(prefix_ixiy)\r
-l139bh:\r
+as_store_4:\r
ld (iy+000h),a\r
ld (iy+001h),b\r
ld (iy+002h),l\r
ld (iy+003h),h\r
ld c,004h\r
ret\r
+\r
l13aah:\r
- ld a,(de)\r
+ call get_char_upper\r
cp 'A'\r
- jp nz,ERROR\r
+ jr nz,error5\r
inc de\r
ld b,032h\r
-as.store_3:\r
+\r
+as_store_3:\r
call assert_eol\r
ld (iy+000h),b\r
ld (iy+001h),l\r
ld (iy+002h),h\r
ld c,003h\r
ret\r
+\r
l13c2h:\r
cp 020h\r
jr z,l13d0h\r
l13c9h:\r
call assert_eol\r
ld a,0edh\r
- jr l139bh\r
+ jr as_store_4\r
l13d0h:\r
ld b,022h\r
- jr as.store_3\r
+ jr as_store_3\r
+\r
l13d4h:\r
ld b,a\r
call assert_comma\r
add a,b\r
add a,040h\r
cp 076h\r
- jp z,ERROR\r
+ jr z,error60\r
l13ech:\r
ld b,a\r
jp as.opc.noarg\r
+\r
l13f0h:\r
call arg.IDX_displcmnt\r
jr nc,l1413h\r
rlca\r
add a,046h\r
cp 076h\r
- jp z,ERROR\r
+ jr z,error60\r
\r
l1400h:\r
ld b,a\r
ld (iy+000h),a\r
ld c,003h\r
ret\r
+\r
l1413h:\r
- ld a,(de)\r
+ call get_char_upper\r
cp 'I'\r
jr z,l1426h\r
cp 'R'\r
jr nz,l1432h\r
ld a,b\r
cp 007h\r
- jp nz,ERROR\r
+ jr nz,error60\r
ld b,05fh\r
jr l142eh\r
+\r
l1426h:\r
ld a,b\r
cp 007h\r
- jp nz,ERROR\r
+ jr nz,error60\r
ld b,057h\r
l142eh:\r
inc de\r
add a,006h\r
l143fh:\r
ld b,a\r
-as.store_2:\r
+as_store_2:\r
call assert_eol\r
ld (iy+000h),b\r
ld (iy+001h),l\r
inc de\r
ld a,b\r
cp 007h\r
- jp nz,ERROR\r
+ jr nz,error60\r
call arg.ww\r
jr nc,l1466h\r
cp 030h\r
- jp nc,ERROR\r
+ jr nc,error60\r
add a,00ah\r
ld b,a\r
call test_paren_close\r
jp as.opc.noarg\r
+\r
+error60:\r
+ jp error\r
+\r
l1466h:\r
call test_expr\r
call test_paren_close\r
ld b,03ah\r
- jp as.store_3\r
+ jp as_store_3\r
\r
l1471h:\r
call assert_comma\r
call arg.r_HL_A\r
jr nc,l1483h\r
cp 006h\r
- jp z,ERROR\r
+ jr z,error60\r
add a,070h\r
jp l1400h\r
\r
ld (iy+001h),b\r
ld c,002h\r
ret\r
+\r
l14c3h:\r
ld a,b\r
cp 030h\r
jr nz,error6\r
ld b,0f9h\r
jr as.opc.noarg ;14ca\r
+\r
l14cch:\r
- ld a,(de)\r
+ call get_char_upper\r
cp '('\r
jr nz,l14e8h\r
inc de\r
add a,04bh\r
ld b,a\r
jp l13c9h\r
+\r
l14e3h:\r
ld b,02ah\r
- jp as.store_3\r
+ jp as_store_3\r
+\r
l14e8h:\r
call test_expr\r
call assert_eol\r
ld a,001h\r
add a,b\r
ld b,a\r
- jp as.store_3\r
+ jp as_store_3\r
l14f5h:\r
call assert_comma\r
- ld a,(de)\r
+ call get_char_upper\r
cp '('\r
jr nz,l1509h\r
inc de\r
call test_paren_close\r
ld b,02ah\r
jp l1395h\r
+\r
l1509h:\r
call test_expr\r
ld b,021h\r
jp l1395h\r
+\r
l1511h:\r
inc de\r
call assert_comma\r
ld b,047h\r
jr l151fh\r
+\r
l1519h:\r
inc de\r
call assert_comma\r
ld b,04fh\r
l151fh:\r
- ld a,(de)\r
+ call get_char_upper\r
inc de\r
cp 'A'\r
jr z,gen.opc.ED2\r
ld b,a\r
call test_paren_close\r
call assert_comma\r
- ld a,(de)\r
+ call get_char_upper\r
cp 'A'\r
jr nz,error6\r
inc de\r
jr nc,as.AND_CP_OR_SUB_XOR\r
call assert_comma\r
call arg.ww\r
- jp nc,ERROR\r
+ jr nc,error6\r
push af\r
ld a,b\r
cp 088h\r
l156eh:\r
ld b,a\r
jr gen.opc.ED2\r
+\r
as.ADD:\r
ld hl,t_HL.AF\r
call sub_0318h\r
ld hl,t_BC.DE.IY.SP\r
l158eh:\r
call arg.reg_16bit\r
- jp nc,ERROR\r
+ jr nc,error6\r
add a,009h\r
l1596h:\r
ld b,a\r
l159ah:\r
call assert_comma\r
call arg.ww\r
- jp nc,ERROR\r
+error61nc:\r
+ jr nc,error6\r
add a,009h\r
jp l13ech\r
as.AND_CP_OR_SUB_XOR:\r
- ld a,(de)\r
+ call get_char_upper\r
cp 'A'\r
jr nz,l15b8h\r
push de\r
call arg.r_HL_A\r
jr c,l15fah\r
call arg.IDX_displcmnt\r
- jp nc,ERROR\r
+ jr nc,error61nc\r
ld a,b\r
add a,006h\r
ld b,a\r
call arg.r_HL_A\r
jr c,l1624h\r
call arg.IDX_displcmnt\r
- jp nc,ERROR\r
+ jr nc,error61nc\r
ld a,l\r
rlca\r
rlca\r
l163eh:\r
pop af\r
call test_expr\r
- jp as.store_3\r
+ jp as_store_3\r
\r
as.RET:\r
call arg.cc_ZCPS\r
pop af\r
l166eh:\r
call test_expr\r
- jp as.store_3\r
+ jp as_store_3\r
l1674h:\r
call assert_eol\r
ld a,b\r
ld b,0fdh\r
l1687h:\r
ld l,0e9h\r
- jp as.store_2\r
+ jp as_store_2\r
\r
l168ch:\r
DC '(HL)'\r
call assert_comma\r
l16aeh:\r
call arg.j_displ\r
- jp as.store_2\r
+ jp as_store_2\r
\r
as.IM:\r
call arg.imm_8bit\r
ld a,l\r
cp 003h\r
- jr nc,error2\r
+ jr nc,error7\r
and a\r
jr z,l16c7h\r
ld b,056h\r
ld b,a\r
pop af\r
and 0c7h\r
- jr nz,error2\r
+ jr nz,error7\r
jp as.opc.noarg\r
\r
as.POP_PUSH:\r
call arg.IX_IY\r
jr c,l16e7h\r
call arg.zz\r
- jr nc,error2\r
+ jr nc,error7\r
add a,b\r
jp l13ech\r
l16e7h:\r
\r
as.IN:\r
call arg.r_HL_A\r
- jr nc,error2\r
+ jr nc,error7\r
cp 006h\r
- jr z,error2\r
+ jr z,error7\r
rlca\r
rlca\r
rlca\r
jr c,l1715h\r
call arg.addr_8bit\r
ld b,0dbh\r
- jp as.store_2\r
+ jp as_store_2\r
l170fh:\r
call assert_comma\r
call sub_171bh\r
l1715h:\r
jp c,gen.opc.ED2\r
-error2:\r
+error7:\r
jp ERROR\r
\r
sub_171bh:\r
jr nc,l1739h\r
call assert_comma\r
call arg.r_HL_A\r
- jr nc,error2\r
+ jr nc,error7\r
cp 006h\r
- jr z,error2\r
+ jr z,error7\r
rlca\r
rlca\r
rlca\r
call arg.addr_8bit\r
call assert_comma\r
cp 'A'\r
- jr nz,error2\r
+ jr nz,error7\r
inc de\r
ld b,0d3h\r
- jp as.store_2\r
+ jp as_store_2\r
\r
as.EX:\r
ld hl,b_176d_start\r
call sub_030ah\r
- jp nc,ERROR\r
+ jr nc,error7\r
ld c,b\r
call assert_eol\r
ld b,000h\r
call arg.r_HL_A\r
jr c,l17cch\r
call arg.IDX_displcmnt\r
- jp nc,ERROR\r
+ jr nc,error8\r
ld a,b\r
add a,030h\r
jp l1400h\r
call arg.imm_8bit\r
ld a,l\r
cp 008h\r
- jr nc,error3\r
+ jr nc,error8\r
ret\r
\r
arg.j_displ:\r
ld a,h\r
xor l\r
bit 7,a\r
- jr nz,error3\r
+ jr nz,error8\r
ret\r
\r
arg.addr_8bit:\r
- ld a,(de)\r
+ call get_char_upper\r
cp '('\r
jr nz,arg.imm_8bit\r
inc de\r
ret z\r
inc a\r
ret z\r
- jr error3\r
+ jr error8\r
\r
test_expr:\r
push bc\r
call expr\r
pop bc\r
ret nc\r
-error3:\r
+error8:\r
jp ERROR\r
\r
arg.zz:\r
push hl\r
- ld hl,t_BC.DE.HL.AF\r
+ ld hl,t_arg_rp2\r
jr l181fh\r
\r
arg.reg_16bit:\r
\r
arg.ww:\r
push hl\r
- ld hl,t_BC.DE.HL.SP\r
+ ld hl,t_arg_rp\r
l181fh:\r
push bc\r
call sub_030ah\r
call skipbl\r
push bc\r
push hl\r
- ld hl,t_BCDEHL_HL_A\r
+ ld hl,t_arg_r\r
call sub_030ah\r
ld a,b\r
pop hl\r
arg.IDX_displcmnt:\r
push hl\r
push bc\r
- ld a,(de)\r
+ call get_char_upper\r
cp '('\r
jr nz,l18a1h\r
push de\r
ld a,0fdh\r
l186eh:\r
ld (prefix_ixiy),a\r
- ld a,(de)\r
+ call get_char_upper\r
cp '+'\r
jr z,l1882h\r
cp ')'\r
ld hl,0\r
jr z,l189ah\r
cp '-'\r
- jp nz,ERROR\r
+ jr nz,error9\r
l1882h:\r
push af\r
inc de\r
and a\r
sbc hl,bc\r
l1894h:\r
- ld a,(de)\r
+ call get_char_upper\r
cp ')'\r
- jp nz,ERROR\r
+ jr nz,error9\r
l189ah:\r
inc de\r
pop bc\r
jr l18b1h\r
\r
arg.cc_ZC:\r
- ld hl,t_tstfl_ZC\r
+ ld hl,t_arg_cc\r
ld c,003h\r
l18b1h:\r
push bc\r
assert_comma:\r
call next_arg\r
ret z\r
-l18c2h:\r
+error9:\r
jp ERROR\r
\r
test_paren_close:\r
- ld a,(de)\r
+ call get_char_upper\r
cp ')'\r
- jr nz,l18c2h\r
+ jr nz,error9\r
inc de\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; >>L [startaddr] [endaddr]\r
+; List disassembled code\r
+\r
cmd_L:\r
- ld hl,cmd_L\r
ld (cmd_rpt),hl\r
call expr\r
jr nc,l18dbh\r
ld hl,(last_L)\r
l18dbh:\r
- push hl\r
- pop iy\r
call next_arg\r
call get_range\r
jr nc,l1905h\r
ld b,16\r
l18ebh:\r
push bc\r
- push iy\r
- pop hl\r
- push hl\r
- call p_disas_line\r
- call crlf\r
- pop iy\r
- ld c,b\r
- ld b,0\r
- add iy,bc\r
- ld (last_L),iy\r
+ call cmdl_p_line\r
pop bc\r
djnz l18ebh\r
ret\r
+\r
l1905h:\r
call assert_eol\r
- ld h,b\r
- ld l,c\r
- ld a,b\r
- or c\r
- jr nz,l190fh\r
- dec hl\r
+ ld d,h\r
+ ld e,l\r
+ add hl,bc\r
+ ex de,hl\r
l190fh:\r
- push hl\r
- push iy\r
- pop hl\r
- push hl\r
- call p_disas_line\r
- call crlf\r
- pop iy\r
- ld e,b\r
- ld d,000h\r
- add iy,de\r
- ld (last_L),iy\r
- pop hl\r
- and a\r
- sbc hl,de\r
- ret z\r
- ret c\r
- jr l190fh\r
+ push de\r
+ call cmdl_p_line\r
+ pop de\r
+ call cp_hl_de\r
+ jr c,l190fh\r
+ ret\r
+\r
+;-------------------------------------------------------------------------------\r
+\r
+cmdl_p_line:\r
+ push hl\r
+ call p_disas_line\r
+ call crlf\r
+ pop hl\r
+ ld c,b\r
+ ld b,0\r
+ add hl,bc\r
+ ld (last_L),hl\r
+ ret\r
\r
p_disas_line:\r
+ call p_label\r
+ call outbl2\r
call out.hl.@\r
call z,outbl\r
call outbl\r
sub a\r
ld (con_col),a\r
+ push hl\r
+ pop iy\r
call p_disas_instr\r
- and a\r
ret z\r
\r
-l193fh:\r
- call outbl\r
- ld a,(con_col)\r
- cp 16\r
- jr c,l193fh\r
+ ld c,15\r
+ call p_goto_col\r
+ call p_offset\r
+ call outbl\r
+ jp p_symbol\r
+\r
+;-------------------------------------------------------------------------------\r
\r
p_offset:\r
ld de,(var.@)\r
ld a,d\r
or e\r
ret z\r
- call p_char_lparen\r
- ld a,'@'\r
- call outchar\r
+ call pstr_inl\r
+ dc '(@'\r
and a\r
sbc hl,de\r
call out_hl\r
+ add hl,de\r
jp out_rparen\r
\r
+;-------------------------------------------------------------------------------\r
+\r
p_disas_instr:\r
sub a\r
- ld (l1ffdh),a\r
+ ld (disas_argtype),a\r
call disas_get_instrlen\r
jr nc,l197fh\r
- push bc\r
- call p_mnemonic\r
+ push bc\r
+ ld a,(con_col)\r
+ add a,5\r
+ ld c,a\r
+ call pstr ;print mnemonic\r
+ call p_goto_col\r
ex de,hl\r
- call call_hl\r
+ call call_hl ;print arguments\r
pop bc\r
- ld a,(l1ffdh)\r
- ld hl,(l1ffbh)\r
+ ld a,(disas_argtype)\r
+ ld hl,(disas_arg_16)\r
+ or a\r
scf\r
ret\r
\r
l197fh:\r
call pstr_inl\r
DC '???'\r
- ld b,001h\r
+ ld b,1\r
sub a\r
ret\r
\r
scf\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
+disas_nopfx:\r
+ ld hl,b_1b54_start ;2 byte opcodes\r
+ call lookup_op\r
+ ld b,2\r
+ ret c\r
+ ld hl,b_1ab6_start ;1 byte opcodes (no parameters)\r
+ call sub_1a72h\r
+ ld b,1\r
+ ret c\r
+ ld hl,b_1ad1_start ;1 byte opcodes\r
+ call lookup_op\r
+ ld b,1\r
+ ret c\r
+ ld hl,b_1b9b_start ;3 byte opcodes\r
+ call lookup_op\r
+ ret nc\r
+ ld b,3\r
+ ret\r
+\r
+;-------------------------------------------------------------------------------\r
+\r
+disas_pfx.ED:\r
+ inc iy\r
+ ld hl,b_1bc9_start ;1 byte opcode, no arguments\r
+ call sub_1a72h\r
+ ld b,2\r
+ ret c\r
+ ld hl,b_1bf4_start\r
+ call lookup_op\r
+ ld b,2\r
+ ret c\r
+\r
+ ld hl,l228bh\r
+ call lookup_op\r
+ ld b,3\r
+ ret c\r
+ ld hl,b_1c40_start\r
+ call lookup_op\r
+ ld b,4\r
+ ret\r
+\r
+;-------------------------------------------------------------------------------\r
+\r
+disas_pfx.CB:\r
+ push iy\r
+ inc iy\r
+ ld a,(isprefix_ixiy)\r
+ and a\r
+ jr z,l1a42h\r
+ inc iy\r
+l1a42h:\r
+ ld hl,b_1c55_start\r
+ call lookup_op\r
+ pop iy\r
+ ld b,2\r
+ ret\r
+\r
+;-------------------------------------------------------------------------------\r
+\r
disas_pfx.DDFD:\r
inc iy\r
ld hl,b_19ef_start\r
and a\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
; DD/FD 3 byte (ix+d)/(iy+d)\r
b_19ef_start:\r
db 034h\r
db 0f9h\r
db 0\r
\r
-disas_pfx.ED:\r
- inc iy\r
- ld hl,b_1bc9_start\r
- call sub_1a72h\r
- ld b,2\r
- ret c\r
- ld hl,b_1bf4_start\r
- call lookup_opc\r
- ld b,2\r
- ret c\r
-\r
- ld hl,l228bh\r
- call lookup_opc\r
- ld b,3\r
- ret c\r
- ld hl,b_1c40_start\r
- call lookup_opc\r
- ld b,4\r
- ret\r
-\r
-disas_pfx.CB:\r
- push iy\r
- inc iy\r
- ld a,(isprefix_ixiy)\r
- and a\r
- jr z,l1a42h\r
- inc iy\r
-l1a42h:\r
- ld hl,b_1c55_start\r
- call lookup_opc\r
- pop iy\r
- ld b,2\r
- ret\r
-\r
-disas_nopfx:\r
- ld hl,b_1b54_start\r
- call lookup_opc\r
- ld b,2\r
- ret c\r
- ld hl,b_1ab6_start\r
- call sub_1a72h\r
- ld b,1\r
- ret c\r
- ld hl,b_1ad1_start\r
- call lookup_opc\r
- ld b,1\r
- ret c\r
- ld hl,b_1b9b_start\r
- call lookup_opc\r
- ret nc\r
- ld b,3\r
- ret\r
+;-------------------------------------------------------------------------------\r
\r
sub_1a72h:\r
ld a,(hl)\r
inc hl\r
jr sub_1a72h\r
l1a7fh:\r
+ ld de,l1c97h\r
inc hl\r
ld c,(hl)\r
- ld hl,t_MNEMONICS\r
- ld b,0\r
- add hl,bc\r
- ld de,l1c97h\r
- scf\r
- ret\r
+ jr get_mnemonic\r
+\r
\r
test_DDFD:\r
ld a,(hl)\r
scf\r
ret\r
\r
-lookup_opc:\r
+lookup_op:\r
ld a,(iy+000h)\r
and (hl)\r
inc hl\r
inc hl\r
ld a,(hl)\r
and a\r
- jr nz,lookup_opc\r
+ jr nz,lookup_op\r
ret\r
+\r
l1aa8h:\r
inc hl\r
ld c,(hl)\r
ld e,(hl)\r
inc hl\r
ld d,(hl)\r
+get_mnemonic:\r
ld hl,t_MNEMONICS\r
- ld b,000h\r
+ ld b,0\r
add hl,bc\r
scf\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
; 1 byte opcodes (no parameters)\r
; Format: db opcode, t_MNEMONICS-index\r
b_1ab6_start:\r
db 0ffh\r
\r
\r
-; 1 byte opcodes\r
+; 1 byte opcodes\r
; Format: db mask, match, t_MNEMONICS-index\r
; dw argument formating fuction\r
b_1ad1_start:\r
dw l1ce5h\r
db 0\r
\r
-; 2 byte opdodes\r
+; 2 byte opcodes\r
b_1b54_start:\r
db 0c7h,006h,056h ;ld r,nn\r
dw l1cfah\r
db 0ffh,0feh,013h ;cp a,nn\r
dw l1d09h\r
db 0ffh,010h,02eh ;djnz\r
- dw l1d1ah\r
+ dw p_arg_jrel\r
db 0ffh,018h,054h ;jr\r
- dw l1d1ah\r
- db 0e7h,020h,054h ;jr,cc\r
- dw l1d0fh\r
+ dw p_arg_jrel\r
+ db 0e7h,020h,054h ;jr cc,\r
+ dw p_arg_cc_jrel\r
db 0ffh,0d3h,076h ;out (nn),a\r
dw l1d37h\r
db 0ffh,0dbh,03fh ;in a,(nn)\r
dw l1d29h\r
db 0\r
\r
-; 3 byte opcodes\r
+; 3 byte opcodes\r
b_1b9b_start:\r
db 0c7h,0c2h,052h ;jp cc,mn\r
dw p_arg_cc_mn\r
dw p_arg_bitop\r
db 0\r
\r
+;-------------------------------------------------------------------------------\r
+\r
p_arg_r_r:\r
call p_arg_r\r
call p_char_comma\r
sub_1ce8h:\r
call p_char_lparen\r
call p_arg_ww\r
-out_rparen:\r
- jp p_char_rparen\r
+ jr out_rparen\r
\r
l1cf5h:\r
call p_A_comma\r
l1d0ch:\r
jp out_hex\r
\r
-l1d0fh:\r
+p_arg_cc_jrel:\r
ld a,(iy+000h)\r
and 018h\r
call p_arg_cc0\r
call p_char_comma\r
-l1d1ah:\r
+p_arg_jrel:\r
ld c,(iy+001h)\r
ld a,c\r
rla\r
inc hl\r
inc hl\r
jr l1d4eh\r
+\r
l1d29h:\r
call p_A_comma\r
sub_1d2ch:\r
call p_char_lparen\r
ld a,(iy+001h)\r
- jp l1e6bh\r
+p_arg_nn_rp:\r
+ call out_hex\r
+out_rparen:\r
+ jr p_char_rparen\r
+\r
l1d37h:\r
call sub_1d2ch\r
jr p_char_comma_A\r
l1d4eh:\r
ld a,002h\r
sub_1d50h:\r
- ld (l1ffdh),a\r
- ld (l1ffbh),hl\r
- call out_hl\r
- ret\r
+ ld (disas_argtype),a\r
+ ld (disas_arg_16),hl\r
+ jp out_hl\r
+\r
p_arg_ww_mn:\r
call p_arg_ww\r
call p_char_comma\r
jr p_arg_mn\r
\r
p_arg_addr_hl:\r
- call sub_1e13h\r
+ call p_arg_addr\r
call p_char_comma\r
jp p_arg_hlixiy\r
+\r
p_arg_hl_addr:\r
call p_arg_hlixiy\r
call p_char_comma\r
- jp sub_1e13h\r
+ jp p_arg_addr\r
\r
p_arg_addr_a:\r
- call sub_1e13h\r
+ call p_arg_addr\r
p_char_comma_A:\r
call p_char_comma\r
+ jr p_char_A\r
+\r
+p_A_comma:\r
+ call p_char_A\r
+p_char_comma:\r
+ ld a,','\r
+ db 021h\r
p_char_A:\r
ld a,'A'\r
- jr outchar1\r
-p_arg_a_addr:\r
- call p_A_comma\r
- jp sub_1e13h\r
+ db 021h\r
l1d85h:\r
ld a,'0'\r
- jr outchar1\r
+ db 021h\r
l1d89h:\r
ld a,'1'\r
- jr outchar1\r
+ db 021h\r
l1d8dh:\r
ld a,'2'\r
- jr outchar1\r
-\r
-p_A_comma:\r
- call p_char_A\r
-p_char_comma:\r
- ld a,','\r
-outchar1:\r
+ db 021h\r
+p_char_rparen:\r
+ ld a,')'\r
+ db 021h\r
+p_char_lparen:\r
+ ld a,'('\r
jp outchar\r
\r
l1d92h:\r
jp p_arg_ww\r
\r
p_arg_addr_ww:\r
- call sub_1e13h\r
+ call p_arg_addr\r
call p_char_comma\r
jp p_arg_ww\r
\r
p_arg_ww_addr:\r
call p_arg_ww\r
call p_char_comma\r
- jr sub_1e13h\r
+ jr p_arg_addr\r
+\r
+p_arg_a_addr:\r
+ call p_A_comma\r
+p_arg_addr:\r
+ call p_char_lparen\r
+ ld l,(iy+001h)\r
+ ld h,(iy+002h)\r
+ ld a,001h\r
+ call sub_1d50h\r
+ jr p_char_rparen\r
\r
p_arg_bitop:\r
ld a,(isprefix_ixiy)\r
l1e11h:\r
jr p_arg_r0\r
\r
-sub_1e13h:\r
- call p_char_lparen\r
- ld l,(iy+001h)\r
- ld h,(iy+002h)\r
- ld a,001h\r
- call sub_1d50h\r
-\r
-p_char_rparen:\r
- ld a,')'\r
- jp outchar\r
-\r
p_arg_r:\r
ld a,(iy+000h)\r
rra\r
l1e4dh:\r
call pstr\r
ld a,(iy+001h)\r
- and a\r
- jp m,l1e61h\r
+ push af\r
+ rlca\r
ld a,'+'\r
- call outchar\r
- ld a,(iy+001h)\r
- jr l1e6bh\r
-l1e61h:\r
+ jr nc,l1e61h\r
+ pop af\r
+ neg\r
+ push af\r
ld a,'-'\r
+l1e61h:\r
call outchar\r
- ld a,(iy+001h)\r
- neg\r
-l1e6bh:\r
- call out_hex\r
- jr p_char_rparen\r
+ pop af\r
+ jp p_arg_nn_rp\r
\r
p_arg_r1:\r
- ld hl,t_BCDEHL_HL_A\r
+ ld hl,t_arg_r\r
jr p_arg\r
\r
b_1e78_start:\r
ld hl,t_HL.IX.IY\r
jr p_arg\r
p_arg_zz:\r
- ld hl,t_BC.DE.HL.AF\r
+ ld hl,t_arg_rp2\r
jr l1e8eh\r
p_arg_ww:\r
- ld hl,t_BC.DE.HL.SP\r
+ ld hl,t_arg_rp\r
l1e8eh:\r
ld a,(iy+000h)\r
rra\r
ld hl,t_tstfl_ZCPS\r
p_arg:\r
ld b,a\r
- call sel_dc_string\r
- jp pstr\r
+ ;fall thru\r
+pstr_sel:\r
+ call str_sel\r
+ ;fall thru\r
+pstr:\r
+ ld a,(hl)\r
+ inc hl\r
+ and a\r
+ ret z\r
+ call outchar\r
+ ret m\r
+ jr pstr\r
\r
-p_mnemonic:\r
- call pstr\r
-l1ebch:\r
- call outbl\r
- inc c\r
- ld a,c\r
- cp 5\r
- jr c,l1ebch\r
+pstr_inl:\r
+ ex (sp),hl\r
+ call pstr\r
+ ex (sp),hl\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
t_MNEMONICS:\r
DC 'ADC'\r
DC 'ADD'\r
DC 'TSTIO'\r
DB 0\r
\r
-t_BCDEHL_HL_A:\r
+t_arg_r:\r
DC 'B'\r
DC 'C'\r
DC 'D'\r
DC '(HL)'\r
DC 'A'\r
DB 0\r
-t_BC.DE.HL.SP:\r
+t_arg_rp:\r
DC 'BC'\r
DC 'DE'\r
DC 'HL'\r
DC 'SP'\r
DB 0\r
-t_BC.DE.HL.AF:\r
+t_arg_rp2:\r
DC 'BC'\r
DC 'DE'\r
t_HL.AF:\r
DC 'IX'\r
DC 'IY'\r
DB 0\r
-t_tstfl_ZC:\r
+t_arg_cc:\r
DC 'NZ'\r
DC 'Z'\r
DC 'NC'\r
DC '(C)'\r
DB 0\r
\r
-sub_1ffeh:\r
+;-------------------------------------------------------------------------------\r
+\r
+tc_set_bp:\r
ld hl,(reg.pc)\r
ld a,h\r
or l\r
ld de,BDOS\r
and a\r
sbc hl,de\r
- ld hl,l20edh\r
+ ld hl,l20edh ;set break after BDOS call\r
jr z,l2031h\r
ld iy,(reg.pc)\r
call disas_get_instrlen\r
jp nc,ERROR\r
ld c,b\r
- ld b,000h\r
+ ld b,0\r
ld hl,(reg.pc)\r
add hl,bc\r
- call sub_09cah\r
+ call bp_trace_enter\r
ld iy,(reg.pc)\r
ld hl,b_2039_start\r
- call lookup_opc\r
+ call lookup_op\r
ccf\r
ret c\r
ex de,hl\r
l2031h:\r
call CALL_HL\r
- call c,sub_09cah\r
+ call c,bp_trace_enter\r
l2037h:\r
scf\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
b_2039_start:\r
db 0ffh,0ddh,000h ;Prefix DD\r
dw l20a7h\r
dw l20dch\r
db 0ffh,0cfh,000h ;rst 8\r
dw l2115h\r
- db 0c7h,0c7h,000h ;\r
+ db 0c7h,0c7h,000h ;rst n\r
dw l20f9h\r
- db 0c7h,0c4h,000h ;\r
+ db 0c7h,0c4h,000h ;call cc,mn\r
dw l2080h\r
- db 0f7h,010h,000h ;\r
+ db 0f7h,010h,000h ;djnz d; jr d\r
dw l2093h\r
- db 0e7h,020h,000h ;\r
+ db 0e7h,020h,000h ;jr cc,d\r
dw l2093h\r
- db 0c7h,0c2h,000h ;\r
+ db 0c7h,0c2h,000h ;jp cc,mn\r
dw l208bh\r
- db 0c7h,0c0h,000h ;\r
+ db 0c7h,0c0h,000h ;ret cc\r
dw l20c5h\r
db 0\r
\r
+;-------------------------------------------------------------------------------\r
+; call mn call cc,mn\r
l2080h:\r
ld a,(b_21e2_start)\r
and a\r
ld a,(trace_call_flag)\r
and a\r
ret nz\r
+\r
+; jp mn jp cc,mn\r
l208bh:\r
ld l,(iy+001h)\r
ld h,(iy+002h)\r
scf\r
ret\r
+\r
+;jr, djnz\r
l2093h:\r
ld c,(iy+001h)\r
ld a,c\r
inc hl\r
scf\r
ret\r
+\r
+; jp (hl)\r
l20a2h:\r
ld hl,(reg.l)\r
scf\r
ret\r
+\r
+; Prefix DD\r
l20a7h:\r
ld hl,(reg.ix)\r
jr l20afh\r
+; Prefix FD\r
l20ach:\r
ld hl,(reg.iy)\r
l20afh:\r
ld a,(iy+001h)\r
- cp 0e9h\r
+ cp 0e9h ; jp (ix); jp (iy)\r
scf\r
ret z\r
and a\r
ret\r
+\r
+; Prefix ED\r
l20b8h:\r
ld a,(iy+001h)\r
- cp 04dh\r
+ cp 04dh ; reti\r
jr z,l20dch\r
- cp 045h\r
+ cp 045h ; retn\r
jr z,l20dch\r
and a\r
ret\r
+\r
+;ret cc\r
l20c5h:\r
ld a,(iy+000h)\r
ld (l20d7h),a\r
inc hl\r
jp (hl)\r
\r
+;ret\r
l20dch:\r
ld a,(b_21e2_start)\r
and a\r
pop hl\r
ret\r
l20edh:\r
- ld hl,(reg_sp)\r
+ ld hl,(reg_sp) ;break on return address\r
ld e,(hl)\r
inc hl\r
ld d,(hl)\r
ex de,hl\r
- call sub_09cah\r
+ call bp_trace_enter\r
+;rst 8\r
+l2115h:\r
and a\r
ret\r
\r
+;rst n\r
l20f9h:\r
ld a,(l0003h)\r
cp (iy+000h)\r
l2113h:\r
scf\r
ret\r
-l2115h:\r
- and a\r
- ret\r
+\r
+;-------------------------------------------------------------------------------\r
+; >>C[N][J] [steps]\r
+; >>C[N][J] W expression\r
+; >>C[N][J] U expression\r
+; trace over Calls [No list] [Jumps only] /.While./.Until.\r
+\r
cmd_C:\r
- ld hl,cmd_C\r
- ld a,001h\r
- jr l2122h\r
+ ld a,1\r
+ jr cmd_tc\r
+\r
+;-------------------------------------------------------------------------------\r
+; >>T[N][J] [steps]\r
+; >>T[N][J] W expression\r
+; >>T[N][J] U expression\r
+; Trace [no List] [Jumps only] / .While. / .Until.\r
+\r
cmd_T:\r
xor a\r
- ld hl,cmd_T\r
-l2122h:\r
+cmd_tc:\r
ld (cmd_rpt),hl\r
ld (trace_call_flag),a\r
- ld a,(de)\r
+ call get_char_upper\r
sub 'N'\r
- jr nz,l212eh\r
+ jr nz,tc_non\r
inc de\r
-l212eh:\r
+tc_non:\r
ld (trace_N_flag),a\r
- ld a,(de)\r
+ call get_char_upper\r
sub 'J'\r
- jr nz,l2137h\r
+ jr nz,tc_noj\r
inc de\r
-l2137h:\r
+tc_noj:\r
ld (trace_J_flag),a\r
- call sub_21a6h\r
- jr z,l2145h\r
- ld hl,1\r
+ call tc_chk_u_or_w\r
+ jr z,tc_save_uw_expr_ptr\r
+ ld hl,1 ;default: 1 step\r
call get_lastarg_def\r
-l2145h:\r
- ld (trace_count),hl\r
+tc_save_uw_expr_ptr:\r
+ ld (trace_cnt_or_ptr),hl\r
sub a\r
- ld (l0941h),a\r
+ ld (bp_p_cpu_flag),a\r
l214ch:\r
- call sub_1ffeh\r
- jr l21a3h\r
+ call tc_set_bp\r
+ jr user_go1\r
\r
l2151h:\r
call bp_clr_temporary\r
call sub_21c8h\r
jr z,l216bh\r
ld hl,b_2048_start\r
- call lookup_opc\r
+ call lookup_op\r
jr nc,l214ch\r
l216bh:\r
- ld a,(trace_UW_flag)\r
+ ld a,(trace_UW_flag) ;0 or 'U' or 'W'\r
and a\r
- jr z,l2188h\r
- ld de,(trace_count)\r
+ jr z,tc_cnt ;flag is 0, check for step count.\r
+ ld de,(trace_cnt_or_ptr)\r
call expr\r
ld a,h\r
or l\r
add a,0ffh\r
sbc a,a\r
- ld hl,trace_UW_flag\r
+ ld hl,trace_UW_flag ;'U' or 'W'\r
xor (hl)\r
- bit 1,a\r
+ bit 1,a ;'U' = 55H, 'W' = 57H\r
jr z,l2193h\r
-l2185h:\r
- jp l0902h\r
-l2188h:\r
- ld hl,(trace_count)\r
+do_break0: ;print registers and go to main loop\r
+ jp do_break\r
+\r
+tc_cnt:\r
+ ld hl,(trace_cnt_or_ptr)\r
dec hl\r
- ld (trace_count),hl\r
+ ld (trace_cnt_or_ptr),hl\r
ld a,h\r
or l\r
- jr z,l2185h\r
+ jr z,do_break0\r
l2193h:\r
- call sub_1ffeh\r
- jr nc,l2185h\r
+ call tc_set_bp\r
+ jr nc,do_break0\r
ld a,(trace_N_flag)\r
ld b,a\r
- ld a,(l0941h)\r
+ ld a,(bp_p_cpu_flag)\r
or b\r
- ld (l0941h),a\r
-l21a3h:\r
+ ld (bp_p_cpu_flag),a\r
+user_go1:\r
jp user_go\r
\r
-sub_21a6h:\r
+tc_chk_u_or_w:\r
call skipbl\r
xor a\r
ld (trace_UW_flag),a\r
- ld a,(de)\r
+ call get_char_upper\r
cp 'U'\r
jr z,l21b5h\r
cp 'W'\r
cp 045h\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
+con_col:\r
+ db 0\r
+\r
+;-------------------------------------------------------------------------------\r
+\r
b_21e2_start:\r
db 0\r
trace_call_flag:\r
db 0 ;1=call, 0=trace\r
trace_UW_flag:\r
db 0 ;0 or 'U' or 'W'\r
-trace_count:\r
+trace_cnt_or_ptr:\r
dw 0\r
trace_N_flag:\r
db 0 ;0 if 'N'\r
trace_J_flag:\r
db 0 ;0 if 'J'\r
\r
-;-------------------------------------------------------------------------------\r
-\r
-con_col:\r
- db 0\r
-\r
-l0941h:\r
+bp_p_cpu_flag:\r
db 0\r
\r
bp_tab:\r
\r
expr_p1:\r
dw expr_buf\r
-expr_p2:\r
- dw expr_buf\r
\r
expr_buf:\r
current_cseg defl $ - current_cseg\r
ds EXPR_BUF_SIZE - ($ - expr_buf)\r
expr_bufe:\r
\r
+;-------------------------------------------------------------------------------\r
+\r
msg_Y:\r
dc 'Yn'\r
reg_Y:\r
db 0\r
last_L:\r
dw TPA\r
-l1ffbh:\r
+disas_arg_16:\r
dw 0\r
-l1ffdh:\r
+disas_argtype:\r
db 0\r
\r
+pbl_loop_adr:\r
+ dw 0\r
+\r
+symlen_cur: ;max length of symbols read so far\r
+ db 0\r
cur_fcb:\r
dw 0\r
fcbsym:\r
projects / ddt180.git / blobdiff