aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--src/Makefile16
-rw-r--r--src/casm.c1
-rw-r--r--src/cpcout.c274
-rw-r--r--src/cpcout.h56
-rw-r--r--src/example/Makefile5
-rw-r--r--src/output.c8
-rw-r--r--src/output.h1
7 files changed, 353 insertions, 8 deletions
diff --git a/src/Makefile b/src/Makefile
index e95a5c8..68d4ef3 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -49,7 +49,8 @@ SOURCE = casm.c \
gbout.c \
snesout.c \
libout.c \
- nesout.c
+ nesout.c \
+ cpcout.c
OBJECTS = casm.o \
expr.o \
@@ -76,7 +77,8 @@ OBJECTS = casm.o \
gbout.o \
snesout.o \
libout.o \
- nesout.o
+ nesout.o \
+ cpcout.o
$(TARGET): $(OBJECTS)
$(CC) $(CLAGS) -o $(TARGET) $(OBJECTS)
@@ -91,10 +93,12 @@ clean:
alias.o: alias.c global.h basetype.h util.h state.h alias.h
casm.o: casm.c global.h basetype.h util.h state.h expr.h label.h macro.h \
cmd.h parse.h codepage.h stack.h listing.h alias.h output.h rawout.h \
- specout.h t64out.h zx81out.h gbout.h snesout.h libout.h nesout.h z80.h \
- 6502.h gbcpu.h 65c816.h spc700.h
+ specout.h t64out.h zx81out.h gbout.h snesout.h libout.h nesout.h \
+ cpcout.h z80.h 6502.h gbcpu.h 65c816.h spc700.h
codepage.o: codepage.c global.h basetype.h util.h state.h codepage.h \
parse.h cmd.h
+cpcout.o: cpcout.c global.h basetype.h util.h state.h codepage.h parse.h \
+ cmd.h cpcout.h expr.h
expr.o: expr.c global.h basetype.h util.h state.h expr.h label.h
gbcpu.o: gbcpu.c global.h basetype.h util.h state.h expr.h label.h \
parse.h cmd.h codepage.h varchar.h gbcpu.h
@@ -112,7 +116,7 @@ nesout.o: nesout.c global.h basetype.h util.h state.h expr.h codepage.h \
parse.h cmd.h nesout.h
output.o: output.c global.h basetype.h util.h state.h output.h parse.h \
cmd.h rawout.h specout.h t64out.h zx81out.h gbout.h snesout.h libout.h \
- nesout.h
+ nesout.h cpcout.h
parse.o: parse.c global.h basetype.h util.h state.h codepage.h parse.h \
cmd.h
rawout.o: rawout.c global.h basetype.h util.h state.h rawout.h parse.h \
@@ -122,7 +126,7 @@ snesout.o: snesout.c global.h basetype.h util.h state.h expr.h codepage.h \
spc700.o: spc700.c global.h basetype.h util.h state.h expr.h label.h \
parse.h cmd.h codepage.h spc700.h
specout.o: specout.c global.h basetype.h util.h state.h specout.h parse.h \
- cmd.h
+ cmd.h expr.h
stack.o: stack.c global.h basetype.h util.h state.h stack.h
state.o: state.c global.h basetype.h util.h state.h expr.h
t64out.o: t64out.c global.h basetype.h util.h state.h codepage.h parse.h \
diff --git a/src/casm.c b/src/casm.c
index 79cf3d6..cd5f116 100644
--- a/src/casm.c
+++ b/src/casm.c
@@ -693,6 +693,7 @@ int main(int argc, char *argv[])
PushValTableHandler(SNESOutputOptions(), SNESOutputSetOption);
PushValTableHandler(LibOutputOptions(), LibOutputSetOption);
PushValTableHandler(NESOutputOptions(), NESOutputSetOption);
+ PushValTableHandler(CPCOutputOptions(), CPCOutputSetOption);
ClearState();
diff --git a/src/cpcout.c b/src/cpcout.c
new file mode 100644
index 0000000..6dbafc1
--- /dev/null
+++ b/src/cpcout.c
@@ -0,0 +1,274 @@
+/*
+
+ casm - Simple, portable assembler
+
+ Copyright (C) 2003-2015 Ian Cowburn (ianc@noddybox.co.uk)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+ -------------------------------------------------------------------------
+
+ Commodore CPC tape output handler.
+
+*/
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "global.h"
+#include "codepage.h"
+#include "cpcout.h"
+#include "expr.h"
+
+
+/* ---------------------------------------- MACROS & TYPES
+*/
+
+enum option_t
+{
+ OPT_START_ADDR,
+};
+
+static const ValueTable option_set[] =
+{
+ {"cpc-start", OPT_START_ADDR},
+ {NULL}
+};
+
+typedef struct
+{
+ int start_addr;
+} Options;
+
+static Options options = {-1};
+
+/* ---------------------------------------- PRIVATE FUNCTIONS
+*/
+
+static int PokeB(Byte *mem, int addr, Byte b)
+{
+ mem[addr++] = b;
+ return (addr % 0x10000);
+}
+
+
+static int PokeW(Byte *mem, int addr, int w)
+{
+ addr = PokeB(mem, addr, w & 0xff);
+ return PokeB(mem, addr, (w & 0xff00) >> 8);
+}
+
+
+static int PokeS(Byte *mem, int addr, const char *str)
+{
+ while(*str)
+ {
+ addr = PokeB(mem, addr, CodeFromNative(CP_ASCII, *str++));
+ }
+
+ return addr;
+}
+
+
+static void WriteByte(FILE *fp, Byte b)
+{
+ putc(b, fp);
+}
+
+
+static void WriteWord(FILE *fp, int w)
+{
+ WriteByte(fp, w & 0xff);
+ WriteByte(fp, (w & 0xff00) >> 8);
+}
+
+
+static void WriteLong(FILE *fp, unsigned long l)
+{
+ int f;
+
+ for(f = 0; f < 4; f++)
+ {
+ WriteByte(fp, l & 0xff);
+ l >>= 8u;
+ }
+}
+
+
+static void WriteString(FILE *fp, const char *p, int len,
+ Byte fill, Codepage cp)
+{
+ while(len--)
+ {
+ WriteByte(fp, *p ? CodeFromNative(cp, *p++) : CodeFromNative(cp, fill));
+ }
+}
+
+
+/* ---------------------------------------- INTERFACES
+*/
+const ValueTable *CPCOutputOptions(void)
+{
+ return option_set;
+}
+
+CommandStatus CPCOutputSetOption(int opt, int argc, char *argv[], int quoted[],
+ char *err, size_t errsize)
+{
+ CommandStatus stat = CMD_OK;
+
+ CMD_ARGC_CHECK(1);
+
+ switch(opt)
+ {
+ case OPT_START_ADDR:
+ CMD_EXPR(argv[0], options.start_addr);
+ break;
+
+ default:
+ break;
+ }
+
+ return stat;
+}
+
+int CPCOutput(const char *filename, const char *filename_bank,
+ MemoryBank **bank, int count, char *error, size_t error_size)
+{
+ FILE *fp = fopen(filename, "wb");
+ int f;
+ int offset;
+
+ if (!fp)
+ {
+ snprintf(error, error_size, "Failed to create %s", filename);
+ return FALSE;
+ }
+
+ /* Write signature
+ */
+ WriteString(fp, "C64 tape image file", 32, 0, CP_ASCII);
+
+ /* Write directory header
+ */
+ WriteWord(fp, 0x200);
+ WriteWord(fp, count);
+ WriteWord(fp, count);
+ WriteString(fp, filename, 24, ' ', CP_ASCII);
+
+ /* Offset to tape data
+ */
+ offset = 64 + 32 * count;
+
+ /* Write directory entries
+ */
+ for(f = 0; f < count; f++)
+ {
+ int min, max, len;
+
+ min = bank[f]->min_address_used;
+ max = bank[f]->max_address_used;
+
+ /* If this is the first bank, we're going to prepend some BASIC
+ */
+ if (f == 0)
+ {
+ if (min < 0x810)
+ {
+ snprintf(error, error_size, "First bank starts below a safe "
+ "area to add BASIC loader");
+
+ return FALSE;
+ }
+
+ min = 0x801; /* Start of BASIC */
+ }
+
+ len = max - min + 1;
+
+ WriteByte(fp, 1);
+ WriteByte(fp, 0x82);
+ WriteWord(fp, min);
+ WriteWord(fp, max + 1);
+ WriteLong(fp, offset);
+
+ if (count == 1)
+ {
+ WriteString(fp, filename, 16, ' ', CP_CBM);
+ }
+ else
+ {
+ char fn[16];
+
+ snprintf(fn, sizeof fn, filename_bank, bank[f]->number);
+ WriteString(fp, fn, 16, ' ', CP_CBM);
+ }
+
+ /* +2 is to include the 2-byte PRG header
+ offset += len + 2;
+ */
+ offset += len;
+ }
+
+ /* Write actual contents
+ */
+ for(f = 0; f < count; f++)
+ {
+ Byte *mem;
+ int min, max, len;
+
+ mem = bank[f]->memory;
+
+ min = bank[f]->min_address_used;
+ max = bank[f]->max_address_used;
+
+ /* If this is the first bank, we're going to prepend some BASIC.
+ Note that output drivers are allowed to manipulate memory directly.
+ */
+ if (f == 0)
+ {
+ char sys[16];
+ int a = 0x803;
+ int next;
+
+ snprintf(sys, sizeof sys, "%u", min);
+
+ a = PokeW(mem, a, 10);
+ a = PokeB(mem, a, 0x9e);
+ a = PokeS(mem, a, sys);
+ a = PokeB(mem, a, 0x00);
+
+ next = a;
+
+ a = PokeW(mem, a, 0x00);
+
+ PokeW(mem, 0x801, next);
+
+ min = 0x801;
+ }
+
+ len = max - min + 1;
+
+ fwrite(mem + min, len, 1, fp);
+ }
+
+ fclose(fp);
+
+ return TRUE;
+}
+
+
+/*
+vim: ai sw=4 ts=8 expandtab
+*/
diff --git a/src/cpcout.h b/src/cpcout.h
new file mode 100644
index 0000000..7117f58
--- /dev/null
+++ b/src/cpcout.h
@@ -0,0 +1,56 @@
+/*
+
+ casm - Simple, portable assembler
+
+ Copyright (C) 2003-2015 Ian Cowburn (ianc@noddybox.co.uk)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+ -------------------------------------------------------------------------
+
+ Amstrad CPC tape output
+
+*/
+
+#ifndef CASM_CPCOUT_H
+#define CASM_CPCOUT_H
+
+#include "parse.h"
+#include "state.h"
+#include "cmd.h"
+
+/* ---------------------------------------- INTERFACES
+*/
+
+
+/* RAW Output options
+*/
+const ValueTable *CPCOutputOptions(void);
+
+CommandStatus CPCOutputSetOption(int opt, int argc, char *argv[],
+ int quoted[], char *error,
+ size_t error_size);
+
+
+/* C64 CPC tape output of assembly. Returns TRUE if OK, FALSE for failure.
+*/
+int CPCOutput(const char *filename, const char *filename_bank,
+ MemoryBank **bank, int count,
+ char *error, size_t error_size);
+
+#endif
+
+/*
+vim: ai sw=4 ts=8 expandtab
+*/
diff --git a/src/example/Makefile b/src/example/Makefile
index f9f15db..a1807a2 100644
--- a/src/example/Makefile
+++ b/src/example/Makefile
@@ -20,7 +20,7 @@
# Makefile for examples
#
-ALL = spectrum.tap c64.t64 zx81.p gb.gb vcs.bin snes.sfc nes.nes
+ALL = spectrum.tap c64.t64 zx81.p gb.gb vcs.bin snes.sfc nes.nes cpc.cdt
CASM = ../casm
all: $(ALL) $(CASM)
@@ -36,6 +36,9 @@ spectrum.tap: spectrum.asm $(CASM)
c64.t64: c64.asm $(CASM)
$(CASM) c64.asm
+cpc.cdt: cpc.asm
+ $(CASM) cpc.asm
+
zx81.p: zx81.asm $(CASM)
$(CASM) zx81.asm
diff --git a/src/output.c b/src/output.c
index 1067b96..66abfae 100644
--- a/src/output.c
+++ b/src/output.c
@@ -55,7 +55,8 @@ typedef enum
GAMEBOY,
SNES,
LIBRARY,
- NES
+ NES,
+ CPC
} Format;
static char output[4096] = "output";
@@ -73,6 +74,7 @@ static ValueTable format_table[] =
{"snes", SNES},
{"lib", LIBRARY},
{"nes", NES},
+ {"cpc", CPC},
{NULL}
};
@@ -166,6 +168,10 @@ int OutputCode(void)
return NESOutput(output, output_bank, bank, count,
error, sizeof error);
+ case CPC:
+ return CPCOutput(output, output_bank, bank, count,
+ error, sizeof error);
+
default:
break;
}
diff --git a/src/output.h b/src/output.h
index b2e208c..84d0e33 100644
--- a/src/output.h
+++ b/src/output.h
@@ -39,6 +39,7 @@
#include "snesout.h"
#include "libout.h"
#include "nesout.h"
+#include "cpcout.h"
/* ---------------------------------------- INTERFACES
*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 22:02:45 +0000