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authorIan C <ianc@noddybox.co.uk>2024-04-11 22:55:50 +0100
committerIan C <ianc@noddybox.co.uk>2024-04-11 22:55:50 +0100
commitc59d0a6ce3e709171ba8815b0830797a4b55c492 (patch)
tree4bf7df316636f82fe0c1f424a0c556c1da8a243d /src/example
parente12820746e064f366f8d10488941fdaee0f40e12 (diff)
Added VIC-20 + 8K PRG example
Diffstat (limited to 'src/example')
-rw-r--r--src/example/Makefile5
-rw-r--r--src/example/vic20+8k.asm30
2 files changed, 34 insertions, 1 deletions
diff --git a/src/example/Makefile b/src/example/Makefile
index 629314a..5d2d326 100644
--- a/src/example/Makefile
+++ b/src/example/Makefile
@@ -21,7 +21,7 @@
#
ALL = spectrum.tap t64.t64 zx81.p gb.gb vcs.bin snes.sfc nes.nes cpc.cdt \
- prg.prg hex.hex vic20.prg
+ prg.prg hex.hex vic20.prg vic20+8k.prg
CASM = ../casm
all: $(ALL) $(CASM)
@@ -64,6 +64,9 @@ hex.hex: emucpm.z80 $(CASM)
vic20.prg: vic20.asm $(CASM)
$(CASM) vic20.asm
+vic20+8k.prg: vic20+8k.asm $(CASM)
+ $(CASM) vic20+8k.asm
+
clean:
rm -f $(ALL)
diff --git a/src/example/vic20+8k.asm b/src/example/vic20+8k.asm
new file mode 100644
index 0000000..32de0d7
--- /dev/null
+++ b/src/example/vic20+8k.asm
@@ -0,0 +1,30 @@
+ ; Simple example C64 code
+ ;
+
+ cpu 6502
+
+ option codepage,cbm
+
+ option output-file,vic20+8k.prg
+ option output-format,prg
+ option prg-start,start
+ option prg-system,vic20+8k
+
+ org $1300
+
+main:
+ lda #0
+ clc
+loop:
+ sta 36879
+ adc #1
+ pha
+ jsr $ffe4
+ beq nokey
+ rts
+nokey:
+ pla
+ jmp loop
+
+start:
+ jmp main