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authormrb0nk500 <b0nk@b0nk.xyz>2020-05-29 22:38:34 -0400
committermrb0nk500 <b0nk@b0nk.xyz>2020-05-29 22:38:34 -0400
commit2f9d38f9f9d6f17bc274934b23915417012eeed8 (patch)
treeb72aff709261d5e22f026835191eec9b73a77ff5 /programs
parent47cb4ad67be723a4df8e6ccd3cad6be79e3e7765 (diff)
Make JSL, JSR absolute, and remove RTL.
The reason for doing this was because JSL, and RTL are redundent, as they both do the same thing as JSR, and RTS.
Diffstat (limited to 'programs')
-rw-r--r--programs/subasm.s76
-rw-r--r--programs/subeditor.s241
2 files changed, 155 insertions, 162 deletions
diff --git a/programs/subasm.s b/programs/subasm.s
index 350e105..e5d620f 100644
--- a/programs/subasm.s
+++ b/programs/subasm.s
@@ -65,8 +65,7 @@ mne:
.byte "CPY", $19, $3D, $FF, $FF, $85, $FF, $FF, $4C, $FF
.byte "PLB", $1A, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF
.byte "INC", $FF, $1D, $FF, $FF, $FF, $FF, $FF, $1C, $F5
- .byte "JSR", $FF, $1E, $FF, $FF, $BE, $FF, $FF, $FF, $FF
- .byte "JSL", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $20, $FF
+ .byte "JSR", $FF, $1E, $FF, $FF, $BE, $FF, $FF, $20, $FF
.byte "AND", $21, $26, $FF, $FF, $FF, $FF, $FF, $24, $FF
.byte "ABA", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $22
.byte "PLP", $28, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF
@@ -113,7 +112,6 @@ mne:
.byte "INY", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $A8
.byte "TAX", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $AA
.byte "RTS", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $AE
- .byte "RTL", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $B0
.byte "CMP", $B1, $B6, $FF, $FF, $25, $7D, $7C, $B4, $FF
.byte "CAB", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $B2
.byte "SEI", $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF, $B8
@@ -214,22 +212,22 @@ fix_val:
subasm:
ldb #0 ; Set the first pointer
lda.d #cmd_buf ; to the command buffer.
- jsl set_ptr ;
+ jsr set_ptr ;
tba ; Reset A.
tax ; Reset X.
- jsl chk_shcmd ; Did we get a shortend command?
+ jsr chk_shcmd ; Did we get a shortend command?
bne parse_cmd ; Yes, so skip everything else.
jmp subasm_end ;
- jsl chk_cmd ; No, but did we get a full command?
+ jsr chk_cmd ; No, but did we get a full command?
bne parse_cmd ; Yes, so skip everything else.
- jsl lexer ; No, so start lexing this line.
+ jsr lexer ; No, so start lexing this line.
subasm_end:
- rtl ; End of subasm.
+ rts ; End of subasm.
parse_cmd:
ldb #1 ; Set the second pointer
lda.d #cmd_srt ; to the command subroutine table.
- jsl set_ptr ;
+ jsr set_ptr ;
deb ; Reset B.
tba ; Reset A.
lda f ; Get the command ID.
@@ -241,7 +239,7 @@ parse_cmd:
lda.w (ptr2), y ; Get the command subroutine, from the command subroutine table.
ply #2 ; Get back the screen buffer position.
ldb #2 ; Save it in the third pointer.
- jsl set_ptr ;
+ jsr set_ptr ;
ldb #0 ; Reset B.
jsr (ptr3) ; Run the command's subroutine.
jmp subasm_end ; We are done.
@@ -250,7 +248,7 @@ chk_shcmd:
tba ; Reset A.
inb ; Set the second pointer
lda.w #sh_cmds ; to the shortend command table.
- jsl set_ptr ;
+ jsr set_ptr ;
deb ; Reset B.
tba ; Reset A.
phy #2 ; Preserve the screen buffer position.
@@ -283,19 +281,19 @@ shcmd_fail:
tax ; Reset X.
shcmd_end:
ply #2 ; Get back the screen buffer position.
- rtl ; End of chk_shcmd.
+ rts ; End of chk_shcmd.
print_hex:
pha #8 ; Preserve the hex value.
and #0 ; Reset A.
ldb #1 ; Set the second pointer
lda.w #hex_char ; to the start of hex character table.
- jsl set_ptr ;
+ jsr set_ptr ;
inb ; Set the third pointer
lda.d #hex_str ; to the end of hex string buffer.
clc ; Do a non carrying add.
adc #$10 ;
- jsl set_ptr ;
+ jsr set_ptr ;
ldb #0 ; Reset B.
pla #8 ; Get the hex value back.
pnthex_lp:
@@ -325,22 +323,22 @@ pnthex_lp4:
beq pnthex_end ; Yes, so we're done.
jmp pnthex_lp ; No, so keep printing more digits.
pnthex_end:
- rtl ; End of print_hex.
+ rts ; End of print_hex.
charcpy:
ldx idx3 ; Get the string index.
sta strbuf, x ; Save it in the string buffer.
inc idx3 ; Increment the string index.
- rtl ; End of charcpy.
+ rts ; End of charcpy.
print_hi:
and #0 ; Reset A.
sta idx3 ; Clear the string index.
lda #'$' ; Print the hex delimiter.
- jsl charcpy ;
+ jsr charcpy ;
lda.q idx0 ; Get the masked address.
ldx #$10 ; Set digit count to 16.
- jsl print_hex ; Print the address.
+ jsr print_hex ; Print the address.
lda.q hex_str ; Get the lower half of the string.
sta.q strbuf+1 ; Save it in the string buffer.
lda.q hex_str+8 ; Get the upper half of the string.
@@ -348,10 +346,10 @@ print_hi:
ldx #$11 ; Add 16 to the index.
stx idx3 ;
lda #':' ; Print a colon.
- jsl charcpy ;
+ jsr charcpy ;
lda # ' ' ; Print a space.
- jsl charcpy ;
- rtl ; End of print_hi.
+ jsr charcpy ;
+ rts ; End of print_hi.
print_lo:
lda #0 ; Reset A.
@@ -359,11 +357,11 @@ print_lo:
pntlo_lp:
ldx #2 ; Set digit count to 2.
pha #1 ; Preserve the nibble offset.
- jsl print_hex ; Print the low nibble offset.
+ jsr print_hex ; Print the low nibble offset.
lda.w (ptr3) ; Get the two digits.
- jsl charcpy ; Copy the first digit.
+ jsr charcpy ; Copy the first digit.
lsr #8 ; Copy the next digit.
- jsl charcpy ;
+ jsr charcpy ;
pla #1 ; Get the nibble offset back.
inc ; Increment the offset.
cmp #$10 ; Are we at the last offset?
@@ -371,7 +369,7 @@ pntlo_lp:
pntlo_lp1:
pha #1 ; No, so preserve the nibble offset.
lda #' ' ; Add a space to the string buffer.
- jsl charcpy ;
+ jsr charcpy ;
pla #1 ; Get the nibble offset back.
jmp pntlo_lp ; Keep looping.
pntlo_end:
@@ -380,8 +378,8 @@ pntlo_end:
sta strbuf, x ;
tax ; Reset X.
lda.d #strbuf ; Print the string buffer.
- jsl print_str ;
- rtl ; End of print_lo.
+ jsr print_str ;
+ rts ; End of print_lo.
print_chunk:
ldx #0 ; Reset X.
@@ -391,16 +389,16 @@ pntchnk_lp:
and #0 ; Reset A.
ldx #2 ; Set the digit count to 2.
lda (idx0), y ; Get the byte at that address.
- jsl print_hex ; Print the byte.
+ jsr print_hex ; Print the byte.
lda.w (ptr3) ; Get the two digits.
- jsl charcpy ; Copy the first digit.
+ jsr charcpy ; Copy the first digit.
lsr #8 ; Copy the next digit.
- jsl charcpy ;
+ jsr charcpy ;
iny ; Increment the byte index.
cpy #$10 ; Have we read 16 bytes?
beq pntchnk_end ; Yes, so we're done.
lda #' ' ; No, so add a soace to the string buffer.
- jsl charcpy ;
+ jsr charcpy ;
jmp pntchnk_lp ; Keep looping.
pntchnk_end:
ply #2 ; Get the screen buffer index back.
@@ -409,7 +407,7 @@ pntchnk_end:
sta strbuf, x ;
tax ; Reset X.
sta idx3 ; Clear the string index.
- rtl ; End of print_chunk.
+ rts ; End of print_chunk.
viewmem:
lda.q prg_cnt ; Get the program counter.
@@ -418,18 +416,18 @@ viewmem:
sta idx0 ; Overwrite the first byte, with the masked byte.
lda #19 ; Move the cursor to the right, by 19 columns.
sta scr_col ;
- jsl update_pos ;
- jsl print_lo ; Print the low nibble offsets.
+ jsr update_pos ;
+ jsr print_lo ; Print the low nibble offsets.
ldx #0 ; Reset X.
ldb #0 ; Reset B.
stb idx1 ; Reset the byte count.
vmem_lp0:
lda #'\n' ; Print a newline.
- jsl print_char ;
- jsl print_hi ; Place the address in the string buffer.
- jsl print_chunk ; Place the next 16 bytes in the string buffer.
+ jsr print_char ;
+ jsr print_hi ; Place the address in the string buffer.
+ jsr print_chunk ; Place the next 16 bytes in the string buffer.
lda.d #strbuf ; Print the string buffer.
- jsl print_str ;
+ jsr print_str ;
inc idx1 ; Increment the chunk count.
ldb idx1 ; Get the chunk count.
cpb #$10 ; Did we print 16 chunks?
@@ -442,7 +440,7 @@ vmem_lp0:
jmp vmem_lp0 ; Keep looping.
vmem_end:
lda #'\n' ; Print a newline.
- jsl print_char ;
+ jsr print_char ;
and #0 ; Reset A.
rts ; End of viewmem.
diff --git a/programs/subeditor.s b/programs/subeditor.s
index e344588..0a42c32 100644
--- a/programs/subeditor.s
+++ b/programs/subeditor.s
@@ -38,11 +38,6 @@ made:
author:
.byte "mr b0nk 500"
-;sub_name:
-; .byte "SuB Suite"
-;sub_ver:
-; .byte "0.9"
-
string2:
.byte "You typed, "
@@ -143,17 +138,17 @@ reset:
lda.w #$1FFF ; Set the clear count to $1FFF.
sta.w scr_ptr ;
lda.d #buffer ; Set the array to be cleared to the screen buffer.
- jsl clr_arr ; Clear the screen buffer.
- jsl pnt_strt ; Print the starting message.
+ jsr clr_arr ; Clear the screen buffer.
+ jsr pnt_strt ; Print the starting message.
jmp start ; Goto the start of the main program.
clr_arr:
phb #1 ; Preserve whatever was in B.
ldb #0 ; Clear B.
- jsl set_ptr ; Set the first pointer to the parameter.
+ jsr set_ptr ; Set the first pointer to the parameter.
adc #8 ; Set the second pointer to the parameter, plus eight.
inb ; Tell set_ptr to set the second pointer.
- jsl set_ptr ;
+ jsr set_ptr ;
deb ; Set B back to zero.
tba ;
clr_arr_st:
@@ -175,26 +170,26 @@ clr_arr_st:
clr_arr_end:
ldy.w zero ; Set the index back to zero.
plb #1 ; Get whatever was in the B register, back.
- rtl ; End of clr_arr.
+ rts ; End of clr_arr.
pnt_strt:
lda.w #ed_name ; Print the name of the editor.
- jsl print_str ;
+ jsr print_str ;
lda.w #ver_str ; Print the version text.
- jsl print_str ;
+ jsr print_str ;
lda.w #ed_ver ; Print the version number.
- jsl print_str ;
+ jsr print_str ;
lda.w #ed_sver ; Print the sub version number.
- jsl print_str ;
+ jsr print_str ;
lda #'\n' ; Print a newline.
- jsl print_char ;
+ jsr print_char ;
lda.w #made ; Print the "Created by" text.
- jsl print_str ;
+ jsr print_str ;
lda.w #author ; Print the name of the author.
- jsl print_str ;
+ jsr print_str ;
lda #'\n' ; Print a newline.
- jsl print_char ;
- rtl ; End of pnt_strt.
+ jsr print_char ;
+ rts ; End of pnt_strt.
start:
lda #0 ; TODO: Update this for the Super VIA.
@@ -205,7 +200,7 @@ start:
lda.w #$3FF ; Set the clear count to $3FF.
sta.w scr_ptr ;
lda.d #cmd_buf ; Set the array to be cleared to the command buffer.
- jsl clr_arr ; Clear the command buffer.
+ jsr clr_arr ; Clear the command buffer.
ply #2 ; Get back the cursor index.
and #0 ; Reset the Accumulator.
sta end ;
@@ -217,7 +212,7 @@ read:
inc end ; Enable the dummy flag.
lda status ; Did we get a key?
beq read ; No, so try again.
- jsl getchar ; Yes, and was it a newline?
+ jsr getchar ; Yes, and was it a newline?
beq parse ; Yes, so start parsing the line.
jmp read ; No, so keep looping.
@@ -227,7 +222,7 @@ print_str:
print_str2:
lda.q end ; Get the parameter.
ldb #0 ; Clear the B register.
- jsl set_ptr ; Set the first pointer to the parameter.
+ jsr set_ptr ; Set the first pointer to the parameter.
tba ; Clear the Accumulator.
pntstr_lp:
ldb #1 ; Enable replace mode.
@@ -242,12 +237,12 @@ pntstr_lp:
ply #2 ; Get the cursor index back.
beq pntstr_end ; Yes, so we're done.
inx ; No, so increment the string index.
- jsl print_char ; Print the character.
+ jsr print_char ; Print the character.
jmp pntstr_lp ; Keep looping.
pntstr_end:
ldb #0 ; Enable insert mode.
stb b ;
- rtl ; End of print_str.
+ rts ; End of print_str.
getbit:
clc ; Clear the carry flag.
@@ -263,10 +258,10 @@ getbt1:
pha #1 ; Save the parameter.
ldb #1 ; Make sure that set_ptr sets the second pointer.
lda.d #bitabl ; Set the second pointer to the linewrap table.
- jsl set_ptr ;
+ jsr set_ptr ;
lsr #$10 ; Clear the Accumulator.
pla #1 ; Get the return byte back.
- jsl bitpos ; Get the bit, and byte position.
+ jsr bitpos ; Get the bit, and byte position.
phy #2 ; Save the screen index.
txy ; Get the byte position.
ldb (ptr2), y ; Get one byte of the wrap table.
@@ -279,10 +274,10 @@ clrbit:
pha #1 ; Save the parameter.
ldb #1 ; Make sure that set_ptr sets the second pointer.
lda.d #bitabl ; Set the second pointer to the linewrap table.
- jsl set_ptr ;
+ jsr set_ptr ;
and #0 ; Clear the Accumulator.
pla #1 ; Get the return byte back.
- jsl bitpos ; Get the bit, and byte position.
+ jsr bitpos ; Get the bit, and byte position.
xor #$FF ; Invert the bitmask.
phy #2 ; Save the screen index.
txy ; Get the byte position.
@@ -293,16 +288,16 @@ bitsav:
ply #2 ; Get the screen index back.
bitout:
ldx bitmask ; Return the bitmask.
- rtl ; We are done.
+ rts ; We are done.
setbit:
pha #1 ; Save the parameter.
ldb #1 ; Make sure that set_ptr sets the second pointer.
lda.d #bitabl ; Set the second pointer to the linewrap table.
- jsl set_ptr ;
+ jsr set_ptr ;
and #0 ; Clear the Accumulator.
pla #1 ; Get the return byte back.
- jsl bitpos ; Get the bit, and byte position.
+ jsr bitpos ; Get the bit, and byte position.
phy #2 ; Save the screen index.
txy ; Get the byte position.
ldb (ptr2), y ; Get one byte of the wrap table.
@@ -313,7 +308,7 @@ bitpos:
pha #1 ; Save the parameter.
ldb #0 ; Make sure that set_ptr sets the first pointer.
lda.w #bits ; Set the first pointer to the bitmask table.
- jsl set_ptr ;
+ jsr set_ptr ;
and #0 ; Clear the Accumulator.
pla #1 ; Get the parameter back.
stx bitmask ; Make the line number the bitmask.
@@ -329,7 +324,7 @@ bitpos:
lsr #3 ; Get the byte position.
tax ; Copy it into X.
pla #1 ; Get back the bitmask.
- rtl ; End of bitpos.
+ rts ; End of bitpos.
getchar:
lda kbd ; Get the character that was typed from the keyboard.
@@ -340,14 +335,14 @@ getchar:
phy #2 ; Save the cursor index.
cmp #'\n' ; Was the character that was typed, a newline?
bne getchar_pnt ; No, so just print the character.
- jsl cmd_cpy ; Yes, so start copying the line to the command buffer.
+ jsr cmd_cpy ; Yes, so start copying the line to the command buffer.
getchar_pnt:
ply #2 ; Get back the cursor index.
pla #1 ; Get back the character.
ldb e ; Is the temporary row position non zero?
bne reset_row ; Yes, so reset the row positon.
getchar_pt1:
- jsl print_char ; No, so print the character.
+ jsr print_char ; No, so print the character.
lda a ; Get the return value.
cmp #'\n' ; Is the return value, a newline?
beq getchar_ln ; Yes, so return 0.
@@ -369,13 +364,13 @@ getchar_ln:
getchar_chr:
lda #1 ; Return one.
getchar_end:
- rtl ; End of get char.
+ rts ; End of get char.
cmd_cpy:
lda scr_row ; Get the row position.
sta scr_trow ; Save it for later.
- jsl findend ; Find the end of the line.
+ jsr findend ; Find the end of the line.
ldb scr_str ; Has the screen been scrolled?
beq cmd_cpy3 ; No, so don't subtract the screen's starting point from the line number.
cmd_cpy2:
@@ -385,7 +380,7 @@ cmd_cpy2:
cmd_cpy3:
sta scr_row ; Set the row position to the end of the line.
sta e ; Save it into the temporary row posiition.
- jsl findst ; Find the start of the line.
+ jsr findst ; Find the start of the line.
clc ; Clear the carry flag.
lda scr_row ; Get the row position.
adc scr_str ; Add it with the screen's starting row.
@@ -394,10 +389,10 @@ cmd_cpy3:
ldx.w #0 ; Reset the X register.
ldb #0 ; Make sure that set_ptr sets the first pointer.
lda.d #buffer ; Set the first pointer to the start of the screen buffer.
- jsl set_ptr ;
+ jsr set_ptr ;
inb ; Make sure that set_ptr sets the second pointer.
lda.d #cmd_buf ; Set the second pointer to the start of the command buffer.
- jsl set_ptr ;
+ jsr set_ptr ;
deb ; Set B back to zero.
tba ; Set the accumulator to zero.
cmd_cpy_lp:
@@ -431,14 +426,14 @@ cmd_cpy_nd0:
ply #2 ; Get back the screen index.
cmd_cpy_nd:
tab ; The B register is zero, so clear the Accumulator.
- rtl ; End of cmd_cpy.
+ rts ; End of cmd_cpy.
findst:
lda #0 ; Reset A.
findst_lp:
pha #1 ; Save the current line number.
- jsl getbit ; Is this the start of the line?
+ jsr getbit ; Is this the start of the line?
pla #1 ; Get the current line number back.
bcc findst_done ; Yes, so we're done.
inc ; No, so check the next physical line.
@@ -448,14 +443,14 @@ findst_lp:
inc scr_row ; Put the row postiion back to zero.
findst_done:
cmp #0 ; Update all the flags.
- rtl ; End of findst.
+ rts ; End of findst.
fndend:
phb #1 ; Save the contents of the B register.
ldb #0 ; Make sure that set_ptr sets the first pointer.
lda.d #buffer ; Set the first pointer to the start of the screen buffer.
- jsl set_ptr ;
+ jsr set_ptr ;
tba ; Set the Accumulator to zero.
plb #1 ; Restore the contents of the B register.
phy #2 ;
@@ -467,25 +462,25 @@ fndend_lp:
fndend_done:
sty.w scr_ptr3 ;
ply #2 ;
- rtl ; End of fndend.
+ rts ; End of fndend.
findend:
- jsl fndend ;
+ jsr fndend ;
lda.w scr_ptr3 ;
div #maxcol+1 ;
- rtl ;
+ rts ;
parse:
lda #0 ;
tax ;
- jsl subasm ;
+ jsr subasm ;
jmp start ;
print_char:
sta a ; Save the typed character for now.
ldb #2 ; Make sure that set_ptr sets the third pointer.
lda.d #buffer ; Set the third pointer to the start of the screen buffer.
- jsl set_ptr ;
+ jsr set_ptr ;
ldb #0 ; Set B to zero.
tba ; Set the Accumulator to zero.
lda a ; Get back the character.
@@ -511,25 +506,25 @@ printc:
lda b ; No, but was the flag set?
bne printc_save ; Yes, so don't shift the line.
sty.w scr_ptr ; No, so save the cursor index for later.
- jsl fndend ; Find the end of the line.
+ jsr fndend ; Find the end of the line.
jmp prntc_movln ; Start shifting the line right.
prntc_updt:
lda scr_col ; Save the current column position for later.
sta scr_tcol ;
prntc_updt2:
- jsl findend ; Find the end of the line.
+ jsr findend ; Find the end of the line.
sta e ; Use it for redrawing the line.
sta scr_row ; Set the row position to to the end of the line.
- jsl findst ; Find the start of the line.
+ jsr findst ; Find the start of the line.
lda scr_row ; Get the start of the line.
prntc_updt3:
sta f ; Set the starting line, to the start of the line.
- jsl rdrw_ln ; Redraw the line.
+ jsr rdrw_ln ; Redraw the line.
lda scr_trow ; Get the real row position back.
sta scr_row ;
lda scr_tcol ; Get the real column position back.
sta scr_col ;
- jsl update_pos ; Update the cursor's position.
+ jsr update_pos ; Update the cursor's position.
dec d ;
jmp printc_sav1 ;
prntc_movln:
@@ -539,7 +534,7 @@ prntc_movln:
dey ;
ldb #1 ;
stb d ;
- jsl shftln ;
+ jsr shftln ;
ldb #1 ;
stb d ;
lda a ;
@@ -580,7 +575,7 @@ printc_scrl:
clc ;
lda #1 ;
sta wrapped ;
- jsl scrl_down ;
+ jsr scrl_down ;
jmp printc_wrap ;
printc_wrap:
ldb #0
@@ -596,11 +591,11 @@ printc_wrp2:
lda scr_row ;
adc scr_str ;
tax ;
- jsl setbit ;
+ jsr setbit ;
plx #2 ;
- jsl update_pos ;
+ jsr update_pos ;
printc_end:
- rtl ;
+ rts ;
nl:
lda #0 ; Reset A.
@@ -612,11 +607,11 @@ nl1:
lda scr_row ; Get the row position.
cmp #maxrow ; Are we at the bottom of the screen?
bcc nl_inc ; No, so move down one line.
- jsl scrl_down ; Yes, so scroll down one line.
+ jsr scrl_down ; Yes, so scroll down one line.
jmp nl_end ; We are done.
nl_inc:
inc scr_row ; Move the cursor down by one line.
- jsl update_pos ; Update the cursor's position.
+ jsr update_pos ; Update the cursor's position.
nl_end:
lda #'\n' ; Print the newline.
sta a ;
@@ -633,15 +628,15 @@ clr_scr:
lda.w #$1FFF ; Set the clear count to $1FFF.
sta.w scr_ptr ;
lda.d #buffer ; Set the array to be cleared to the screen buffer.
- jsl clr_arr ; Clear the screen buffer.
+ jsr clr_arr ; Clear the screen buffer.
tay ;
lda.w #$3FF ; Set the clear count to $3FF.
sta.w scr_ptr ;
lda.d #cmd_buf ; Set the array to be cleared to the command buffer.
- jsl clr_arr ; Clear the screen buffer.
+ jsr clr_arr ; Clear the screen buffer.
sta scr_col ;
sta scr_row ;
- jsl update_pos ;
+ jsr update_pos ;
lda #$C ;
sta scr ;
jmp printc_end ;
@@ -670,10 +665,10 @@ back:
stb f ;
lda scr_row ; Save the current row position for later.
sta scr_trow ;
- jsl findend ; Find the end of the line.
+ jsr findend ; Find the end of the line.
sta scr_row ; Set our row position to the end of the line.
back0:
- jsl findst ; Does this line take up more than one real line?
+ jsr findst ; Does this line take up more than one real line?
beq back1 ; No, so skip updating any other lines.
bcs back_updt ; Yes, so update the other lines.
lda scr_trow ; Get the real row position back.
@@ -686,24 +681,24 @@ back1:
iny ; Increment cursor index.
ldb #0 ; Set shifting direction to left.
stb d ;
- jsl shftln ; Shift line back by one character.
+ jsr shftln ; Shift line back by one character.
lda #$7F ; Print a backspace to the screen.
sta scr ;
lda e ; Are we updating more than one line?
beq back3 ; No, so skip to the next step.
back2:
- jsl findend ; Yes, so find the end of the line.
+ jsr findend ; Yes, so find the end of the line.
sta e ; Set the end parameter to it.
lda scr_col ; Save the current column position for now.
sta scr_tcol ;
- jsl rdrw_ln ; Start redrawing the line.
+ jsr rdrw_ln ; Start redrawing the line.
lda scr_tcol ; Get the real column position back.
sta scr_col ;
back3:
lda scr_trow ; Get the real row position bac.
sta scr_row ;
dec scr_col ; Move the cursor back by one column,
- jsl update_pos ; and update it's position.
+ jsr update_pos ; and update it's position.
jmp printc_end ; We are done.
back_updt:
lda scr_row ; Set the line to start redrawing, to the start of the line.
@@ -716,7 +711,7 @@ bs:
beq back_wrap ; Yes, so check for a wrapped line.
jmp back ; No, so add the backspace to the buffer.
back_wrap:
- jsl getbit ; Is this line, a wrapped line?
+ jsr getbit ; Is this line, a wrapped line?
bcs back_wrap1 ; Yes, so check if the cursor is at the top.
jmp printc_end ; No, so we're done.
back_wrap1:
@@ -729,7 +724,7 @@ back_wrap2:
jmp printc_end ; No, so we're done.
back_scrl:
clc ; Clear the carry flag, so that we don't get odd behaviour.
- jsl scrl_up ; Scroll up.
+ jsr scrl_up ; Scroll up.
inc scr_row ; Move down by one row.
backwrp:
clc ; Clear the carry flag.
@@ -740,7 +735,7 @@ backwrp2:
dec scr_row ; Move up by one row.
ldb #maxcol+1 ; Move the cursor to the absolute right of the screen.
stb scr_col ;
- jsl update_pos ; Update the cursor's position.
+ jsr update_pos ; Update the cursor's position.
jmp back ; Delete the previous character.
shftln:
@@ -784,11 +779,11 @@ shftln_lp1:
jmp shftln_lp1 ; Keep looping.
shftln_wrap:
tax ; Use the ending line as a parameter for setbit.
- jsl setbit ; Set the wrap bit of the ending line.
+ jsr setbit ; Set the wrap bit of the ending line.
jmp shftln_end2 ; We are done.
shftln_wrp1:
tax ; Use the ending line as a parameter for clrbit.
- jsl clrbit ; Clear the wrap bit of the ending line.
+ jsr clrbit ; Clear the wrap bit of the ending line.
jmp shftln_end2 ; We are done.
shftln_end:
lda (ptr3), y ; Is this character a null terminator?
@@ -796,7 +791,7 @@ shftln_end:
lda #$20 ; Yes, so convert it to a space for now.
sta (ptr3), y ;
shftln_nd0:
- jsl findend ; Find the ending line.
+ jsr findend ; Find the ending line.
sta d ; Save ending line for later.
lda (ptr3), y ; Is this character a space?
cmp #$20 ;
@@ -810,7 +805,7 @@ shftln_nd1:
bcs shftln_wrap ; Yes, so set the wrap bit.
jmp shftln_end2 ; No, so we're done.
shftln_end1:
- jsl findend ; Find the ending line.
+ jsr findend ; Find the ending line.
cpb #0 ; Is the remainder zero?
beq shftln_nd2 ; Yes, so check if the ending line is greater than the starting line.
jmp shftln_end2 ; No, so we're done.
@@ -819,7 +814,7 @@ shftln_nd2:
beq shftln_end2 ; No, so we're done.
bcs shftln_wrp1 ; Yes, so clear the wrap bit.
shftln_end2:
- rtl ; End of shftln.
+ rts ; End of shftln.
esc:
lda status ; Get the next character.
@@ -832,17 +827,17 @@ esc:
sta c ; Store the escape code, until we need it.
lda #0 ; Set the D pseudo register to zero.
sta d ;
- jsl isup ; Check if the user pressed up.
+ jsr isup ; Check if the user pressed up.
lda d ; Did the user press up?
bne esc_end ; Yes, so we're done.
- jsl isdown ; No, so check if the user pressed down.
+ jsr isdown ; No, so check if the user pressed down.
lda d ; Did the user press down?
bne esc_end ; Yes, so we're done.
lda #0 ; No, so check if the user pressed left.
- jsl isleft ;
+ jsr isleft ;
lda d ; Did the user press left?
bne esc_end ; Yes, so we're done.
- jsl isright ; No, so check if the user pressed right.
+ jsr isright ; No, so check if the user pressed right.
esc_end:
lda #0 ; Clear the D pseudo register.
sta d ;
@@ -857,10 +852,10 @@ shftesc:
sta c ; Store the escape code, until we need it.
lda #0 ; Use the D pseudo register as a skip flag.
sta d ;
- jsl isshftup ; Check if the user pressed shift+up.
+ jsr isshftup ; Check if the user pressed shift+up.
lda d ; Was it successful?
bne shftesc_end ; Yes, so we're done.
- jsl isshftdown ; No, so check if the user pressed shift+down.
+ jsr isshftdown ; No, so check if the user pressed shift+down.
shftesc_end:
lda #0 ; Clear the D pseudo register.
sta d ;
@@ -880,11 +875,11 @@ isup_2:
isup_scrl:
lda scr_str ; Are we at the top of the screen buffer?
beq isup_done ; Yes, so we're done.
- jsl scrl_up ; No, so scroll up.
+ jsr scrl_up ; No, so scroll up.
lda #1 ; Tell the escape routine that we were successful.
sta d ;
isup_done:
- rtl ; End of isup.
+ rts ; End of isup.
isdown:
lda c ; Load the escape code into the accumulator.
@@ -902,7 +897,7 @@ isdown_scrl:
sta scr_trow ;
lda scr_col ; Save the cursor's column number.
sta scr_tcol ;
- jsl scrl_down ; Scroll down.
+ jsr scrl_down ; Scroll down.
lda scr_trow ; Load the cursor's row number.
sta scr_row ;
lda scr_tcol ; Load the cursor's column number.
@@ -910,7 +905,7 @@ isdown_scrl:
lda #1 ; Tell the escape routine that we were successful.
sta d ;
isdown_done:
- rtl ; End of isdown.
+ rts ; End of isdown.
isright:
lda c ; Load the escape code into the accumulator.
@@ -922,7 +917,7 @@ isright:
jmp right ; No, so move the cursor right, like normal.
isright_wrp:
inc scr_row ; Move down a row.
- jsl getbit ; Is the current line, a wrapped line?
+ jsr getbit ; Is the current line, a wrapped line?
bcs wrap_inc ; Yes, so leave the cursor where it is.
dec scr_row ; No, so move the cursor back up a row.
jmp isright_dne ; We are done.
@@ -931,7 +926,7 @@ isright_scr:
beq isright_end ; Yes, so we're done.
lda #1 ; No, so scroll down.
sta wrapped ; Set the wrapped flag.
- jsl scrl_down ; Scroll down.
+ jsr scrl_down ; Scroll down.
jmp isright_end ; We are done.
wrap_inc:
lda #0 ; Set the cursor to the far left of the screen.
@@ -944,11 +939,11 @@ wrap_inc:
isright_end:
dec scr_row ; Move back up a row.
isright_nd2:
- jsl update_pos ; Update the cursor position.
+ jsr update_pos ; Update the cursor position.
isright_dne:
lda #0 ; Unset the wrapped flag.
sta wrapped ;
- rtl ; End of isright.
+ rts ; End of isright.
isleft:
lda c ; Load the escape code into the accumulator.
@@ -961,7 +956,7 @@ isleft:
beq left ; Yes, so move the cursor left.
jmp isleft_done ; No, so we're done.
isleft_wrp:
- jsl getbit ; Is the current line, a wrapped line?
+ jsr getbit ; Is the current line, a wrapped line?
bcs wrap_dec ; Yes, so wrap back up a line.
jmp isleft_done ; No, so we're done.
wrap_dec:
@@ -983,34 +978,34 @@ isleft_scrl:
bne isleft_end ; Yes so we're done.
lda scr_str ; No, but are we actually at the top of the screen buffer?
beq isleft_done ; Yes, so we're done.
- jsl scrl_up ; No, so scroll up.
+ jsr scrl_up ; No, so scroll up.
jmp isleft_done ; We are done.
isleft_end:
- jsl update_pos ; Update the cursor position.
+ jsr update_pos ; Update the cursor position.
isleft_done:
lda #0 ; Unset the wrapped flag.
sta wrapped ;
- rtl ; End of isleft.
+ rts ; End of isleft.
up:
dec scr_row ; Move the cursor up a line.
- jsl update_pos ; Update it's position.
+ jsr update_pos ; Update it's position.
lda #1 ; Tell the escape routine that we succeded.
sta d ;
jmp isup_done ; We are done.
down:
inc scr_row ; Move the cursor down a line.
- jsl update_pos ; Update it's position.
+ jsr update_pos ; Update it's position.
lda #1 ; Tell the escape routine that we succeded.
sta d ;
jmp isdown_done ; We are done.
right:
inc scr_col ; Move the cursor right by one character.
- jsl update_pos ; Update it's position.
+ jsr update_pos ; Update it's position.
jmp isright_dne ; We are done.
left:
dec scr_col ; Move the cursor left a character.
- jsl update_pos ; Update it's position.
+ jsr update_pos ; Update it's position.
lda #1 ; Tell the escape routine that we succeded.
sta d ;
jmp isleft_done ; We are done
@@ -1025,7 +1020,7 @@ isshftup:
beq shftup_done ;
jmp shftup ;
shftup_done:
- rtl ;
+ rts ;
isshftdown:
lda c ; Load the escape code back into the accumulator.
@@ -1038,16 +1033,16 @@ isshftdown:
bcs shftdn_done ;
jmp shftdown ;
shftdn_done:
- rtl ;
+ rts ;
shftup:
- jsl scrl_up ;
+ jsr scrl_up ;
lda #1 ;
sta d ;
jmp shftup_done ;
shftdown:
- jsl scrl_down ;
+ jsr scrl_down ;
lda #1 ;
sta d ;
jmp shftdn_done ;
@@ -1066,11 +1061,11 @@ update_pos:
sta scr ; to the screen.
lda #'[' ; Print '['
sta scr ; to the screen, and start the escape sequence.
- jsl getrow ; Start printing the row number to the screen.
- jsl getcol ; Start printing the column number to the screen.
+ jsr getrow ; Start printing the row number to the screen.
+ jsr getcol ; Start printing the column number to the screen.
lda #'H' ; Print 'H'
sta scr ; to the screen.
- rtl ; End of update_pos.
+ rts ; End of update_pos.
getrow:
lda scr_row ; Get the cursor's y coordinate.
@@ -1080,7 +1075,7 @@ getrow:
tba ; Get the remainder.
adc #'0' ; Convert it to ascii, and
sta scr ; print to the screen.
- rtl ; End of getrow.
+ rts ; End of getrow.
getcol:
lda #';' ; Print ';'
@@ -1094,7 +1089,7 @@ getcol:
clc
adc #'0' ; Convert it to ascii, and
sta scr ; print to the screen.
- rtl ; End of getrow.
+ rts ; End of getrow.
scrl_down:
inc scr_str ; Increment the starting line of the screen.
@@ -1110,7 +1105,7 @@ scrl_down:
lda wrapped ; Was the wrapped flag set?
beq scrldn_save ; Yes, so save the cursor position.
scrldn1:
- jsl rdrw_row ; Redraw this row.
+ jsr rdrw_row ; Redraw this row.
lda wrapped ; Was the wrapped flag set?
beq scrldn_load ; Yes, so load the previous cursor position back.
jmp scrldn_end ; No, so we're done.
@@ -1124,11 +1119,11 @@ scrldn_load:
scrldn_end:
pla #1 ; Get the cursor's previous line number back.
sta scr_row ;
- jsl update_pos ; Update the cursor's position.
+ jsr update_pos ; Update the cursor's position.
lda #0 ; Clear the wrapped flag.
sta wrapped ;
scrldn_done:
- rtl ; End of scrl_down.
+ rts ; End of scrl_down.
scrl_up:
dec scr_str ;
@@ -1145,19 +1140,19 @@ scrl_up:
pha #1 ;
lda #0 ;
sta scr_row ;
- jsl rdrw_row ;
+ jsr rdrw_row ;
pla #1 ;
sta scr_col ;
pla #1 ;
sta scr_row ;
- jsl update_pos ;
+ jsr update_pos ;
scrlup_done:
- rtl ;
+ rts ;
rdrw_row:
lda #0 ;
sta scr_col ;
- jsl update_pos ;
+ jsr update_pos ;
rdrow_st:
lda (ptr3), y ;
beq rdrow_inc ;
@@ -1180,9 +1175,9 @@ rdrow_skip:
rdrow_end:
lda #0 ;
sta scr_col ;
- jsl update_pos ;
+ jsr update_pos ;
rdrow_done:
- rtl ;
+ rts ;
rdrw_ln:
lda scr_row ;
@@ -1191,14 +1186,14 @@ rdrw_ln:
sta scr_row ;
lda scr_col ;
pha #1 ;
- jsl update_pos ;
+ jsr update_pos ;
rdrwln_lp:
lda scr_row ;
cmp e ;
beq rdrwln_lp1 ;
bcs rdrwln_done ;
rdrwln_lp1:
- jsl rdrw_row ;
+ jsr rdrw_row ;
rdrwln_inc:
inc scr_row ;
jmp rdrwln_lp ;
@@ -1207,11 +1202,11 @@ rdrwln_done:
sta scr_col ;
pla #1 ;
sta scr_row ;
- jsl update_pos ;
+ jsr update_pos ;
lda #0 ;
sta e ;
sta f ;
- rtl ;
+ rts ;
set_ptr:
cpb #1 ; Are we setting the second pointer?
@@ -1230,7 +1225,7 @@ set_ptr3:
stb.q ptr3 ; Reset the third pointer.
sta.q ptr3 ; Set the third pointer.
setptr_end:
- rtl ; End of set_ptr.
+ rts ; End of set_ptr.
; Entry point for SuBAsm.
parser: