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Nominal support for target Ohio Scientific Challenger 1P

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This commit is contained in:
Stephan Mühlstrasser 2013-07-14 22:50:38 +02:00
parent c9c66dcfdd
commit b3b3578f08
7 changed files with 97 additions and 1 deletions
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30
cfg/c1p.cfg Normal file
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@ -0,0 +1,30 @@
SYMBOLS {
__STACKSIZE__: type = weak, value = $0400; # 1k stack
}
MEMORY {
ZP: file = "", define = yes, start = $0002, size = $001A;
LOADADDR: file = %O, start = $0FFF, size = $0002;
HEADER: file = %O, start = $1001, size = $000C;
RAM: file = %O, define = yes, start = $100D, size = $0DF3 - __STACKSIZE__;
}
SEGMENTS {
STARTUP: load = RAM, type = ro;
LOWCODE: load = RAM, type = ro, optional = yes;
INIT: load = RAM, type = ro, define = yes, optional = yes;
CODE: load = RAM, type = ro;
RODATA: load = RAM, type = ro;
DATA: load = RAM, type = rw;
ZPSAVE: load = RAM, type = bss;
BSS: load = RAM, type = bss, define = yes;
ZEROPAGE: load = ZP, type = zp;
}
FEATURES {
CONDES: type = constructor,
label = __CONSTRUCTOR_TABLE__,
count = __CONSTRUCTOR_COUNT__,
segment = INIT;
CONDES: type = destructor,
label = __DESTRUCTOR_TABLE__,
count = __DESTRUCTOR_COUNT__,
segment = RODATA;
}

1
libsrc/Makefile
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@ -15,6 +15,7 @@ TARGETS = apple2 \
atari \
atarixl \
atmos \
c1p \
$(CBMS) \
$(GEOS) \
lynx \

54
libsrc/c1p/crt0.s Normal file
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@ -0,0 +1,54 @@
; ---------------------------------------------------------------------------
; crt0.s
; ---------------------------------------------------------------------------
;
; Startup code for Ohio Scientific Challenger 1P
.export _init, _exit
.import _main
.export __STARTUP__ : absolute = 1 ; Mark as startup
.import __RAM_START__, __RAM_SIZE__ ; Linker generated
.import copydata, zerobss, initlib, donelib
.include "zeropage.inc"
; ---------------------------------------------------------------------------
; Place the startup code in a special segment
.segment "STARTUP"
; ---------------------------------------------------------------------------
; A little light 6502 housekeeping
_init: LDX #$FF ; Initialize stack pointer to $01FF
TXS
CLD ; Clear decimal mode
; ---------------------------------------------------------------------------
; Set cc65 argument stack pointer
LDA #<(__RAM_START__ + __RAM_SIZE__)
STA sp
LDA #>(__RAM_START__ + __RAM_SIZE__)
STA sp+1
; ---------------------------------------------------------------------------
; Initialize memory storage
; JSR zerobss ; Clear BSS segment
; JSR copydata ; Initialize DATA segment
; JSR initlib ; Run constructors
; ---------------------------------------------------------------------------
; Call main()
JSR _main
; ---------------------------------------------------------------------------
; Back from main (this is also the _exit entry): force a software break
_exit: JSR donelib ; Run destructors
BRK

4
src/ca65/main.c
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@ -298,6 +298,10 @@ static void SetSys (const char* Sys)
NewSymbol ("__SIM65C02__", 1);
break;
case TGT_C1P:
NewSymbol ("__OSIC1P__", 1);
break;
default:
AbEnd ("Invalid target name: `%s'", Sys);

4
src/cc65/main.c
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@ -254,6 +254,10 @@ static void SetSys (const char* Sys)
DefineNumericMacro ("__SIM65C02__", 1);
break;
case TGT_C1P:
DefineNumericMacro ("__OSIC1P__", 1);
break;
default:
AbEnd ("Unknown target system type %d", Target);
}

4
src/common/target.c
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@ -119,7 +119,7 @@ struct TargetEntry {
};
/* Table that maps target names to ids. Sorted alphabetically for bsearch.
* Allows mupltiple entries for one target id (target name aliases).
* Allows multiple entries for one target id (target name aliases).
*/
static const TargetEntry TargetMap[] = {
{ "apple2", TGT_APPLE2 },
@ -130,6 +130,7 @@ static const TargetEntry TargetMap[] = {
{ "bbc", TGT_BBC },
{ "c128", TGT_C128 },
{ "c16", TGT_C16 },
{ "c1p", TGT_C1P },
{ "c64", TGT_C64 },
{ "cbm510", TGT_CBM510 },
{ "cbm610", TGT_CBM610 },
@ -160,6 +161,7 @@ static const TargetProperties PropertyTable[TGT_COUNT] = {
{ "atarixl", CPU_6502, BINFMT_BINARY, CTAtari },
{ "vic20", CPU_6502, BINFMT_BINARY, CTPET },
{ "c16", CPU_6502, BINFMT_BINARY, CTPET },
{ "c1p", CPU_6502, BINFMT_BINARY, CTNone },
{ "c64", CPU_6502, BINFMT_BINARY, CTPET },
{ "c128", CPU_6502, BINFMT_BINARY, CTPET },
{ "plus4", CPU_6502, BINFMT_BINARY, CTPET },

1
src/common/target.h
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@ -58,6 +58,7 @@ typedef enum {
TGT_ATARIXL,
TGT_VIC20,
TGT_C16,
TGT_C1P,
TGT_C64,
TGT_C128,
TGT_PLUS4,