From 9872968720317d0c3e604b9626de4dbe23bae85d Mon Sep 17 00:00:00 2001 From: Daniele Verducci su MatissePenguin Date: Fri, 12 Feb 2021 13:03:43 +0100 Subject: [PATCH] Characters test prior to memory map refactor --- .../composite-pal-adapter/software/avr-assembly/main.asm | 2 +- .../software/avr-assembly/video_generator.asm | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/pat80-io-devices/composite-pal-adapter/software/avr-assembly/main.asm b/pat80-io-devices/composite-pal-adapter/software/avr-assembly/main.asm index 945c6f1..ac3e2fa 100644 --- a/pat80-io-devices/composite-pal-adapter/software/avr-assembly/main.asm +++ b/pat80-io-devices/composite-pal-adapter/software/avr-assembly/main.asm @@ -158,7 +158,7 @@ main: ; Timer setup completed. ; Wait for data (it never exits) - jmp comm_init + ; jmp comm_init forever: jmp forever diff --git a/pat80-io-devices/composite-pal-adapter/software/avr-assembly/video_generator.asm b/pat80-io-devices/composite-pal-adapter/software/avr-assembly/video_generator.asm index d1531ff..176ef21 100644 --- a/pat80-io-devices/composite-pal-adapter/software/avr-assembly/video_generator.asm +++ b/pat80-io-devices/composite-pal-adapter/software/avr-assembly/video_generator.asm @@ -4,8 +4,8 @@ ; ******************************************* ; This module generates a Composite PAL monochrome signal with a resolution -; of 416x304 pixels (= 52x38 characters). The signal is generated using 16-bit -; Timer1 and interrupts. +; of 416x304 pixels of which only 376x232 pizels are visible (= 47x29 characters). +; The signal is generated using 16-bit Timer1 and interrupts. ; How does it work: @@ -51,7 +51,7 @@ draw_picture: ; save X register push XH push XL - + ; set X register to framebuffer start 0x0100 ; (set it a byte before, because it will be incremented at first) clr r27