.phase TPA\r
\r
jp start\r
+ ds 3\r
\r
ldr_end:\r
ldr_size equ $ - TPA\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
\r
ddtz_base:\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
var.$: dw 0000h\r
var.@: dw 0\r
\r
-error_func:dw l0146h\r
+error_func:dw p_msg_error\r
cmd_rpt:dw mainloop\r
\r
+;-------------------------------------------------------------------------------\r
+\r
conbuf:\r
db CONBUF_SIZE\r
\r
\r
ds CONBUF_SIZE + 3 - ($ - conbuf)\r
\r
+;-------------------------------------------------------------------------------\r
+\r
CMDTAB:\r
dw cmd_@ ;examine/substitute the displacement register @\r
dw cmd_A ;Assemble\r
\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.$),hl\r
call CALL_HL\r
jr mainloop\r
\r
-l0146h:\r
+;-------------------------------------------------------------------------------\r
+\r
+p_msg_error:\r
call pstr_inl\r
dc '?'\r
;fall thru\r
out_hl_dec_neg:\r
push hl\r
call sub_01d9h\r
- defb 03eh\r
+ defb 03eh ;ld a,.. swallow push hl\r
out.hl.dec:\r
push hl\r
ld b,006h\r
pop af\r
\r
out_dgt:\r
- and 0fh\r
- cp 10\r
- jr c,l0229h\r
- add a,007h\r
-l0229h:\r
- add a,'0'\r
+ or 0f0h\r
+ daa\r
+ add a,0a0h\r
+ adc a,040h\r
jr outchar\r
\r
out.bin.w:\r
out.bin.b:\r
ld b,8\r
l01c9h:\r
- add a,a\r
- push af\r
- ld a,00\r
- adc a,a\r
- call out_dgt\r
+ rlca\r
+ push af\r
+ ld a,'0'/2\r
+ adc a,a\r
+ call outchar\r
pop af\r
djnz l01c9h\r
ld a,'"'\r
ld a,d\r
or e\r
pop de\r
- ld a,(symlen_max)\r
+ ld a,(symlen_cur)\r
jr z,$+4\r
add a,6\r
add a,c\r
call outbl\r
jr p_goto_col\r
\r
-\r
+;-------------------------------------------------------------------------------\r
\r
inchar:\r
+ push ix\r
push hl\r
push de\r
push bc\r
pop bc\r
pop de\r
pop hl\r
+ pop ix\r
ret\r
\r
get_line:\r
pop hl\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
get_char_upper:\r
ld a,(de)\r
toupper:\r
cp 'a'\r
ret c\r
cp 'z'+1\r
- ret nc\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
to_error:\r
jp ERROR\r
\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_a:\r
add a,l\r
ld l,a\r
pop bc\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
sym_getname:\r
push de\r
push hl\r
pop hl\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
lookupch:\r
ld b,0\r
l02f5h:\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
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
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
dw doop_xor\r
dw 0\r
\r
+;-------------------------------------------------------------------------------\r
+\r
fact_factor:\r
call do_factor\r
ret nc\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
scf\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
fact_reg.Y:\r
call get.decdigit\r
jr c,error1\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
inc b\r
push hl ;symtbl ptr\r
push de ;inpsym ptr\r
-fs_2:\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
or a ;clear carry\r
pop bc\r
ret\r
+\r
fs_3:\r
inc de\r
dec hl\r
- cp (hl)\r
- jr z,fs_2\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
call get_char_upper\r
- cp '['\r
+ cp 'Z'+1\r
jr l0614h\r
\r
get.hexdigit:\r
sub '0'\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
p_cpustat0:\r
call assert_eol\r
p_cpustat:\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
call bp_enter\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
+ add ix,de\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,bp_print\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
bp_print:\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-bp_pr_l:\r
+ call bpl_init\r
+\r
bit 0,(ix+000h)\r
jr z,bp_pr_cont\r
ld a,'R'\r
l0805h:\r
call crlf\r
bp_pr_cont:\r
- ld de,BP_SIZE\r
- add ix,de\r
- djnz bp_pr_l\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
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
-bp_gf_l:\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 bp_gf_l\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
+ jr nc,error12\r
pop hl\r
ld (expr_p2),hl\r
pop de\r
ld hl,(expr_p2)\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
bpddtz:\r
ld (reg.l),hl\r
pop hl\r
ex af,af'\r
sub a\r
ld (l0941h),a\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-l0920h:\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
ret\r
\r
sub_097ah:\r
- ld b,BP_CNT\r
- ld ix,bp_tab\r
-l0980h:\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
+ call bpl_init\r
+\r
ld a,(ix+000h)\r
and 003h\r
jr z,l09c0h\r
call cp_hl_de\r
ret z\r
l09c0h:\r
- ld de,BP_SIZE\r
- add ix,de\r
- djnz l09ach\r
+\r
+ call bpl_next\r
sub a\r
inc a\r
ret\r
and a\r
ld a,008h\r
jr nz,l09edh\r
- ld a,004h\r
+ rra\r
l09edh:\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
+\r
+ call bpl_next\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
user_go:\r
sub a\r
ld (b_21e2_start),a\r
call sub_1ffeh\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
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
ld c,003h\r
jp 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
call sub_0caeh\r
cp 01dh\r
jp z,ERROR\r
ex de,hl\r
- ld hl,b_0cc3_start\r
+ ld hl,t_reg_names\r
call sel_dc_string\r
l0c12h:\r
call l0c33h\r
\r
sub_0c6ah:\r
push af\r
- ld b,000h\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
+t_reg_names:\r
DC 'BC'''\r
DC 'DE'''\r
DC 'HL'''\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
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
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
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
l0dedh:\r
jr nz,l0dedh\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+; > M[V] startaddr endaddr destaddr\r
+; Move memory [and verify]\r
+\r
cmd_M:\r
call get_char_upper\r
cp 'V'\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
p_sym_list:\r
inc de\r
call assert_eol\r
- ld a,(symlen_max)\r
+ ld a,(symlen_cur)\r
add a,7\r
ld b,a\r
ld c,0\r
ld a,c\r
add b\r
ld c,a\r
- ld a,80 ;screen width\r
+ ld a,(screen_width)\r
sub b\r
cp c\r
jr nc,psym_nxtsym\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
call get_char_upper\r
sub 'J'\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
push de\r
push bc\r
l0edah:\r
- call get_char_upper\r
+ ld a,(de)\r
cp (hl)\r
jr nz,l0ee2h\r
inc de\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 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
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
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
call pstr_inl\r
db 'SYMBOLS',CR,LF+80h\r
\r
- dec de\r
- call file_open\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
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 b ; symlen++\r
- ld a,b ;\r
- cp 10h+1 ;\r
- jr c,rs_5 ;\r
+ ld a,(symlen_max) ;\r
+ cp b ;\r
+ jr nc,rs_5 ;\r
error3:\r
jp ERROR ;\r
\r
ld de,(BDOS+1) ;\r
ld (BDOS+1),hl ;\r
ex de,hl ;\r
- pop af ; symlen\r
- ld (hl),a ;\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 hl,symlen_max ;\r
+ ld a,b ;\r
+ ld hl,symlen_cur ;\r
cp (hl) ; new max?\r
jr c,$+3 ;\r
ld (hl),a ;\r
; return nc if valid alfanumeric char\r
\r
test_alphanum:\r
- cp 'z'+1\r
+ cp 'z'\r
+ ret z\r
ccf\r
ret c\r
cp 'a'\r
ret nc\r
- cp 'Z'+1\r
+ cp 'Z'\r
+ ret z\r
ccf\r
ret c\r
cp '?'\r
ret nc\r
test_numeral:\r
- cp '9'+1\r
+ cp '9'\r
+ ret z\r
ccf\r
ret c\r
cp '0'\r
cp TAB\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
p_max_high0:\r
call assert_eol\r
p_max_high:\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
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
jr cmda_loop\r
\r
cmda_restart:\r
- call l0146h\r
+ call p_msg_error\r
ld sp,(l1262h)\r
jr cmda_loop\r
\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
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
jr c,l190fh\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
cmdl_p_line:\r
push hl\r
call p_disas_line\r
call outbl\r
jp p_symbol\r
\r
+;-------------------------------------------------------------------------------\r
+\r
p_offset:\r
ld de,(var.@)\r
ld a,d\r
add hl,de\r
jp out_rparen\r
\r
+;-------------------------------------------------------------------------------\r
+\r
p_disas_instr:\r
sub a\r
ld (disas_argtype),a\r
scf\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
+;-------------------------------------------------------------------------------\r
+\r
disas_pfx.ED:\r
inc iy\r
ld hl,b_1bc9_start\r
ld b,4\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
disas_pfx.CB:\r
push iy\r
inc iy\r
ld b,2\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
disas_nopfx:\r
ld hl,b_1b54_start\r
call lookup_opc\r
ld b,3\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
sub_1a72h:\r
ld a,(hl)\r
cp 0ffh\r
scf\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
; 1 byte opcodes (no parameters)\r
; Format: db opcode, t_MNEMONICS-index\r
b_1ab6_start:\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
call sel_dc_string\r
jp pstr\r
\r
+;-------------------------------------------------------------------------------\r
+\r
t_MNEMONICS:\r
DC 'ADC'\r
DC 'ADD'\r
DC '(C)'\r
DB 0\r
\r
+;-------------------------------------------------------------------------------\r
+\r
sub_1ffeh:\r
ld hl,(reg.pc)\r
ld a,h\r
scf\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
b_2039_start:\r
db 0ffh,0ddh,000h ;Prefix DD\r
dw l20a7h\r
dw l20c5h\r
db 0\r
\r
+;-------------------------------------------------------------------------------\r
+\r
l2080h:\r
ld a,(b_21e2_start)\r
and a\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,1\r
jr l2122h\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
cp 045h\r
ret\r
\r
+;-------------------------------------------------------------------------------\r
+\r
b_21e2_start:\r
db 0\r
trace_call_flag:\r
ds EXPR_BUF_SIZE - ($ - expr_buf)\r
expr_bufe:\r
\r
+;-------------------------------------------------------------------------------\r
+\r
msg_Y:\r
dc 'Yn'\r
reg_Y:\r
disas_argtype:\r
db 0\r
\r
-symlen_max: ;max length of symbols read so far\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
projects / ddt180.git / blobdiff