diff options
Diffstat (limited to 'programs/subeditor.s')
| -rw-r--r-- | programs/subeditor.s | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/programs/subeditor.s b/programs/subeditor.s index d16915d..bdd3a11 100644 --- a/programs/subeditor.s +++ b/programs/subeditor.s @@ -13,6 +13,9 @@ step = $C010 ; Enables clock stepping, when set. maxrow = 23 ; Screen's row count. maxcol = 79 ; Screen's column count. +; Include SuBAsm. +.include "subasm-2.s" + .org $A000 ; String Literals/Constants. tok: @@ -35,6 +38,8 @@ bits: .byte $02 .byte $01 +; This label is for any included files. +incl: ; Linewrap table. .org $1000 @@ -127,6 +132,7 @@ reset: lda.w #buffer ; Set the array to be cleared to the screen buffer. jsl clr_arr ; Clear the screen buffer. jmp start ; Goto the start of the main program. + clr_arr: phb #1 ; Preserve whatever was in B. ldb #0 ; Clear B. @@ -371,7 +377,9 @@ cmd_cpy_lp1: sta (ptr2), y ; Copy one byte from the screen buffer, to the command buffer. inx ; Increment the command buffer index. ply #2 ; Get back the screen index. - iny ; Increment the screen index. + cpx.w #$3FF ; Are we at the end of the command buffer? + bcs cmd_cpy_nd0 ; Yes, so we're done. + iny ; No, so increment the screen index. inb ; Increment the byte count. lsr #8 ; Shift in the next byte. stb g ; Save the byte count. @@ -383,13 +391,17 @@ cmd_cpy_lp1: cpb #7 ; Did we shift in eight bytes? beq cmd_cpy_lp ; Yes, so get eight more bytes. jmp cmd_cpy_lp1 ; No, so keep shifting in more bytes. +cmd_cpy_nd0: + ldb #0 ; Reset B. + phy #2 ; Save the screen index. + txy ; Get the command buffer index. + stb (ptr2), y ; Terminate the command buffer. + 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. - - findst: lda #0 ; findst_lp: @@ -406,6 +418,7 @@ findst_done: cmp #0 ; rtl ; + fndend: phb #1 ; Save the contents of the B register. ldb #0 ; Make sure that set_ptr sets the first pointer. @@ -1194,7 +1207,7 @@ print_buf: jsl print_str ; lsr #$10 ; Clear the Accumulator. cmd_clr: - lda #10 ; + lda #'\n' ; jsl print_char ; jmp start ; @@ -1243,6 +1256,9 @@ set_ptr3: setptr_end: rtl ; End of set_ptr. +; Entry point for SuBAsm. +parser: + .org $FFC0 .qword reset a |