Merge pull request #31 from greg-king5/cbm-chain

Commodore exec() function
This commit is contained in:
Oliver Schmidt
2013-08-26 23:50:34 -07:00
13 changed files with 214 additions and 15 deletions

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@@ -6,6 +6,7 @@
; ---------------------------------------------------------------------------
; Zero page, Commodore stuff
TXTPTR := $3D ; Pointer into BASIC source code
TIME := $A0 ; 60HZ clock
FNAM_LEN := $B7 ; Length of filename
SECADR := $B9 ; Secondary address

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@@ -6,6 +6,7 @@
; ---------------------------------------------------------------------------
; Zero page, Commodore stuff
TXTPTR := $7A ; Pointer into BASIC source code
TIME := $A0 ; 60 HZ clock
FNAM_LEN := $B7 ; Length of filename
SECADR := $B9 ; Secondary address

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@@ -3,14 +3,17 @@
;
; Taken from a kernal disassembly done by myself in 2000/2001.
;
; Ullrich von Bassewitz, 13.09.2001
; 2001-09-13, Ullrich von Bassewitz
; 2013-08-26, Greg King
;-----------------------------------------------------------------------------
; Zeropage stuff
ExecReg = $00
IndReg = $01
ExecReg := $00 ; Controls execution memory bank
IndReg := $01 ; Controls indirect indexed load-store bank
TXTPTR := $85 ; Far pointer into BASIC source code
; ---------------------------------------------------------------------------
; Screen size
@@ -21,7 +24,7 @@ YSIZE = 25
;-----------------------------------------------------------------------------
; I/O Definitions
; I/O $d800: VIC
; I/O $d800: VIC-II
VIC_SPR0_X = $00
VIC_SPR0_Y = $01
@@ -75,7 +78,6 @@ VIC_BG_COLOR2 = $23
VIC_BG_COLOR3 = $24
; I/O $da00: SID 6581
SID_S1Lo = $00
@@ -112,7 +114,7 @@ SID_Noise = $1B
SID_Read3 = $1C
; I/O $db00: CIA 6526 Inter Process Communication
; I/O $db00: CIA 6526, Inter Process Communication
; I/O $dc00: CIA 6526
.struct CIA
@@ -176,7 +178,13 @@ SID_Read3 = $1C
.endstruct
; Out video memory address
;-----------------------------------------------------------------------------
; Our video memory address
COLOR_RAM = $D400 ; System bank
COLOR_RAM := $D400 ; System bank
;-----------------------------------------------------------------------------
BASIC_BUF := $FB5E ; Bank 0 location of command-line
BASIC_BUF_LEN = 162 ; Maximum length of command-line

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@@ -1,16 +1,19 @@
;
; Zeropage and I/O definitions for the CBM 610
; Zero page variables and I/O definitions for the CBM 610
;
; Taken from a kernal disassembly done by myself in 1987.
;
; Ullrich von Bassewitz, 28.09.1998
; 1998-09-28, Ullrich von Bassewitz
; 2013-08-26, Greg King
; ---------------------------------------------------------------------------
; Zeropage stuff
ExecReg = $00
IndReg = $01
ExecReg := $00 ; Controls execution memory bank
IndReg := $01 ; Controls indirect indexed load-store bank
TXTPTR := $85 ; Far pointer into BASIC source code
; ---------------------------------------------------------------------------
; Screen size
@@ -29,7 +32,8 @@ YSIZE = 25
DATA .byte
.endstruct
; I/O $db00: CIA 6526 Inter Process Communication
; I/O $db00: CIA 6526, Inter Process Communication
;
; IPCcia = $db00
@@ -68,7 +72,6 @@ YSIZE = 25
; cia = $dc00
; I/O $dd00: ACIA 6551
;
; acia = $dd00
@@ -108,3 +111,7 @@ YSIZE = 25
; tpi2 = $df00
;-----------------------------------------------------------------------------
BASIC_BUF := $FA5E ; Bank 1 location of command-line
BASIC_BUF_LEN = 162 ; Maximum length of command-line

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@@ -7,6 +7,7 @@
; Zero page, Commodore stuff
MEMSIZE := $34 ; Size of memory installed
TXTPTR := $77 ; Pointer into BASIC source code
TIME := $8D ; 60HZ clock
KEY_COUNT := $9E ; Number of keys in input buffer
RVS := $9F ; Reverse flag
@@ -24,6 +25,9 @@ SCR_LINELEN := $D5 ; Screen line length
CURS_Y := $D8 ; Cursor row
FNADR := $DA ; Pointer to file name
BASIC_BUF := $200 ; Location of command-line
BASIC_BUF_LEN = 81 ; Maximum length of command-line
KEY_BUF := $26F ; Keyboard buffer
;----------------------------------------------------------------------------

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@@ -7,6 +7,7 @@
; Zero page, Commodore stuff
TMPPTR := $22 ; Temporary ptr used by BASIC
TXTPTR := $3B ; Pointer into BASIC source code
TIME := $A3 ; 60HZ clock
FNAM_LEN := $AB ; Length of filename
LFN := $AC ; Logical file number

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@@ -6,6 +6,7 @@
; ---------------------------------------------------------------------------
; Zero page, Commodore stuff
TXTPTR := $7A ; Pointer into BASIC source code
TIME := $A0 ; 60HZ clock
FNAM_LEN := $B7 ; Length of filename
SECADR := $B9 ; Secondary address