MatthiasQuintern/6502-OS
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add ram

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matthias@rpi 2023-11-09 12:07:12 +01:00
parent e0f58c262a
commit 0b1dcf4998
2 changed files with 37 additions and 2 deletions
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8
linker.conf
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@ -1,8 +1,12 @@
MEMORY {
ROM: start = $8000, size = $8000, type = ro, file = %O, fill = yes;
RAM: start = $0000, size = $5fff, type = rw, file = "", fill = yes;
RAM_ZP: start = $0000, size = $100, type = rw, file = "", fill = yes;
RAM: start = $0100, size = $5eff, type = rw, file = "", fill = yes;
VIA1: start = $6000, size = $600f, type = rw, file = "", fill = yes;
VIA2: start = $7000, size = $700f, type = rw, file = "", fill = yes;
ROM: start = $8000, size = $8000, type = ro, file = %O, fill = yes;
}
SEGMENTS {
ZP: load = RAM_ZP, type = bss, start = $0;
RAM: load = RAM, type = bss;
CODE: load = ROM, type = ro;
RODATA: load = ROM, type = ro;

31
system/ram.s65 Normal file
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@ -0,0 +1,31 @@
.segment "ZP"
.org 0
.byte NULL
.org $10
.byte ARG0
.byte ARG1
.byte ARG2
.byte ARG3
.byte ARG4
.byte ARG5
.byte ARG6
.byte ARG7
.byte ARG8
.byte ARG9
.byte ARG10
.byte ARG11
.byte ARG12
.byte ARG13
.byte ARG14
.byte ARG15
.segment "RAM"
.segment "SPI"
.byte SPI_BYTES_WRITTEN
.byte SPI_PAGES_WRITTEN
.byte