From 182b8a2d752fcc679e25d179e0f01d21ba001198 Mon Sep 17 00:00:00 2001
From: "matthias@rpi" <matthiasqui@protonmail.com>
Date: Mon, 13 Nov 2023 19:14:39 +0100
Subject: [PATCH] add spi code space

---
 linker.conf    |  5 ++++-
 system/spi.s65 | 23 +++++++++++++++++++++--
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/linker.conf b/linker.conf
index 1139685..492555a 100644
--- a/linker.conf
+++ b/linker.conf
@@ -1,6 +1,8 @@
 MEMORY {
     RAM_ZP: start = $0000, size = $100,  type = rw, file = "", fill = yes;
-    RAM:    start = $0100, size = $5eff, type = rw, file = "", fill = yes;
+    # RAM:    start = $0100, size = $5eff, type = rw, file = "", fill = yes;
+    RAM:    start = $0100, size = $4eff, type = rw, file = "", fill = yes;
+    SPI:    start = $5000, size = $1000, type = rw, file = "spi.bin", fill = no;
     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;
@@ -13,4 +15,5 @@ SEGMENTS {
     CODE:           load = ROM, type = ro;
     RODATA:         load = ROM, type = ro;
     RESET_VECTOR:	load = ROM, type = ro, start = $FFFA;
+    SPI:            load = SPI, type = rw;
 }
diff --git a/system/spi.s65 b/system/spi.s65
index 60df03a..bc275fc 100644
--- a/system/spi.s65
+++ b/system/spi.s65
@@ -6,6 +6,7 @@
 ;********************************************************************************
 
 .include "system/system.s65"
+.include "programs/print_slow.s65"
 
 .ifndef INCLUDE_SPI
 INCLUDE_SPI = 1
@@ -14,7 +15,24 @@ INCLUDE_SPI = 1
 .bss
 SPI_PAGES_WRITTEN:  .res 1
 SPI_BYTES_WRITTEN:  .res 1
-SPI_CODE_START:     .res $1000
+.segment "SPI"
+SPI_CODE_START:     ; .res $1000
+    lda $1000
+    sta $1000
+    lda $1000
+    sta $1000
+    lda $1000
+    sta $1000
+    lda IO1 + IO::RA
+    lda IO1 + IO::RA
+    bra SPI_CODE_START
+    ; jsr lcd_clear
+    ; PrintSlow msg,20
+    ; jmp home
+; msg:
+    ; .asciiz "YO DAS WAR    SPI"
+
+
 
 .code
 .struct SPI_P_Pins
@@ -54,8 +72,9 @@ SPI_CODE_START:     .res $1000
     DEBUG_LED_ON 0
     ; print received byte
     lda SPI_IO + IO::SR
-    jsr lcd_char
+    sta SPI_CODE_START,x
     inc SPI_BYTES_WRITTEN
+    jsr lcd_char
     rts
 .endproc