makefile: compile, assemble and link

diff --git a/.gitignore b/.gitignore
new file mode 100644 (file)
index 0000000..dcdb5b5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+a.out
+src/*.o

diff --git a/Makefile b/Makefile
new file mode 100644 (file)
index 0000000..ce76b7c
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,19 @@
+# simple makefile
+INC=./inc
+CC=bcc
+LD=ld86
+AS=nasm
+
+all:
+       $(LD) -M src/*.o
+
+# use -x to for -ffreestanding
+c-files:
+       $(CC) -O -c src/*.c
+init:
+       $(AS) -fas86 src/*.s -i $(INC)
+
+clean:
+       rm -rf src/*.o
+
+

diff --git a/inc/WonderSwan.inc b/inc/WonderSwan.inc
new file mode 100644 (file)
index 0000000..a7ab133
--- /dev/null
+++ b/inc/WonderSwan.inc
@@ -0,0 +1,360 @@
+;--------------------------------------------\r
+;     Wonderswan Registers & Equates v0.2\r
+;              by Orion_ [2008]\r
+;\r
+; http://onorisoft.free.fr/\r
+;\r
+; with help of WStech24.txt by Judge and Dox\r
+;--------------------------------------------\r
+\r
+; IO_  mean byte access\r
+; IOw_ mean word access\r
+\r
+\r
+;-------------\r
+; Rom Header\r
+\r
+RH_ROM_4MBITS          equ     0x02\r
+RH_ROM_8MBITS          equ     0x03\r
+RH_ROM_16MBITS         equ     0x04\r
+RH_ROM_32MBITS         equ     0x06\r
+RH_ROM_64MBITS         equ     0x08\r
+RH_ROM_128MBITS                equ     0x09\r
+\r
+RH_NO_SRAM             equ     0x00\r
+RH_SRAM_64KBITS                equ     0x01\r
+RH_SRAM_256KBITS       equ     0x02\r
+RH_SRAM_1MBITS         equ     0x03\r
+RH_SRAM_2MBITS         equ     0x04\r
+RH_SRAM_1KBITS         equ     0x10\r
+RH_SRAM_16KBITS                equ     0x20\r
+RH_SRAM_8KBITS         equ     0x50\r
+\r
+RH_WS_MONO             equ     0x00\r
+RH_WS_COLOR            equ     0x01\r
+\r
+RH_NO_RTC              equ     0x00\r
+RH_RTC                 equ     0x01\r
+\r
+RH_HORIZONTAL          equ     (0x04 + 0x00)\r
+RH_VERTICAL            equ     (0x04 + 0x01)\r
+\r
+\r
+\r
+;-----------------\r
+; Memory Address\r
+\r
+WS_RAM_BASE    equ     0x0000\r
+WS_TILE_BANK   equ     0x2000\r
+WS_STACK       equ     WS_TILE_BANK-2\r
+\r
+WSC_TILE_BANK1 equ     0x4000\r
+WSC_TILE_BANK2 equ     0x8000\r
+WSC_RAM_BASE2  equ     0xC000\r
+WSC_PALETTES   equ     0xFE00\r
+WSC_STACK      equ     WSC_PALETTES-2\r
+\r
+MAP_SIZE       equ     0x800\r
+SPR_TABLE_SIZE equ     0x200\r
+\r
+\r
+\r
+;-------------\r
+; Interrupts\r
+\r
+INTVEC_HBLANK_TIMER    equ     7\r
+INTVEC_VBLANK_START    equ     6\r
+INTVEC_VBLANK_TIMER    equ     5\r
+INTVEC_DRAWING_LINE    equ     4\r
+INTVEC_SERIAL_RECEIVE  equ     3\r
+INTVEC_RTC_ALARM       equ     2\r
+INTVEC_KEY_PRESS       equ     1\r
+INTVEC_SERIAL_SEND     equ     0\r
+\r
+\r
+\r
+;-----------------\r
+; Useful Defines\r
+\r
+%define BG_CHR(tile,pal,bank,hflip,vflip)      (((vflip) << 15) | ((hflip) << 14) | ((bank) << 13) | ((pal) << 9) | (tile))\r
+\r
+%macro ROM_HEADER      7       ; Label, Segment, DevID, WSType, RomSize, SRamSize, WSSpec\r
+       times   ((64*1024)-16)-$+%1 db 0xFF\r
+\r
+       db      0xEA    ; jmpf\r
+       dw      %1      ; Label\r
+       dw      %2      ; Segment\r
+       db      0x00\r
+\r
+       db      %3      ; Developer ID\r
+       db      %4\r
+       db      0x01    ; Cart number\r
+       db      0x00\r
+       db      %5\r
+       db      %6\r
+       db      %7\r
+       db      0x00\r
+       dw      0x0000  ; Checksum\r
+%endmacro\r
+\r
+%macro PADDING 1       ; Number of Segment\r
+       times   (%1*64*1024) db 0xFF\r
+%endmacro\r
+\r
+SCREEN_WIDTH   equ     224\r
+SCREEN_HEIGHT  equ     144\r
+SCREEN_TWIDTH  equ     (SCREEN_WIDTH / 8)\r
+SCREEN_THEIGHT equ     (SCREEN_HEIGHT / 8)\r
+MAP_WIDTH      equ     256\r
+MAP_HEIGHT     equ     256\r
+MAP_TWIDTH     equ     (MAP_WIDTH / 8)\r
+MAP_THEIGHT    equ     (MAP_HEIGHT / 8)\r
+\r
+\r
+\r
+;-----------------------------------\r
+; I/O Ports and associated equates\r
+\r
+IO_DISPLAY_CTRL        equ     0x00\r
+BG_ON          equ     0x01\r
+BG_OFF         equ     0x00\r
+FG_ON          equ     0x02\r
+FG_OFF         equ     0x00\r
+SPR_ON         equ     0x04\r
+SPR_OFF                equ     0x00\r
+SPR_WIN_ON     equ     0x08\r
+SPR_WIN_OFF    equ     0x00\r
+FG_IN_OUT_WIN  equ     0x00\r
+FG_IN_WIN      equ     0x10\r
+FG_OUT_WIN     equ     0x30\r
+\r
+IO_BG_PAL      equ     0x01\r
+%define        BG_COLOR(a)     (a)\r
+%define        BG_PAL(a)       (a << 4)\r
+\r
+IO_CUR_LINE    equ     0x02\r
+IO_LINE_COMP   equ     0x03\r
+\r
+IO_SPR_TABLE   equ     0x04\r
+%define        SPR_TABLE(a)    (a >> 9)        ; Sprite Table Address must be 512 bytes aligned !\r
+\r
+IO_SPR_START   equ     0x05\r
+IO_SPR_STOP    equ     0x06\r
+\r
+IO_FGBG_MAP    equ     0x07\r
+%define        FG_MAP(a)       ((a >> 11) << 4)        ; FG Map Address must be 2048 bytes aligned !\r
+%define        BG_MAP(a)       (a >> 11)               ; BG Map Address must be 2048 bytes aligned !\r
+\r
+IO_FG_WIN_X0   equ     0x08\r
+IO_FG_WIN_Y0   equ     0x09\r
+IO_FG_WIN_X1   equ     0x0A\r
+IO_FG_WIN_Y1   equ     0x0B\r
+\r
+IO_SPR_WIN_X0  equ     0x0C\r
+IO_SPR_WIN_Y0  equ     0x0D\r
+IO_SPR_WIN_X1  equ     0x0E\r
+IO_SPR_WIN_Y1  equ     0x0F\r
+\r
+IO_BG_X                equ     0x10\r
+IO_BG_Y                equ     0x11\r
+\r
+IO_FG_X                equ     0x12\r
+IO_FG_Y                equ     0x13\r
+\r
+IO_LCD_CTRL    equ     0x14\r
+LCD_ON         equ     0x01\r
+LCD_OFF                equ     0x00\r
+\r
+IO_LCD_ICONS   equ     0x15\r
+LCD_ICON_SLEEP equ     0x01\r
+LCD_ICON_VERTI equ     0x02\r
+LCD_ICON_HORIZ equ     0x04\r
+LCD_ICON_DOT1  equ     0x08\r
+LCD_ICON_DOT2  equ     0x10\r
+LCD_ICON_DOT3  equ     0x20\r
+\r
+IO_PALSHADE_10 equ     0x1C\r
+IO_PALSHADE_32 equ     0x1D\r
+IO_PALSHADE_54 equ     0x1E\r
+IO_PALSHADE_76 equ     0x1F\r
+\r
+IO_WS_PAL_00   equ     0x20\r
+IO_WS_PAL_01   equ     0x21\r
+IO_WS_PAL_10   equ     0x22\r
+IO_WS_PAL_11   equ     0x23\r
+IO_WS_PAL_20   equ     0x24\r
+IO_WS_PAL_21   equ     0x25\r
+IO_WS_PAL_30   equ     0x26\r
+IO_WS_PAL_31   equ     0x27\r
+IO_WS_PAL_40   equ     0x28\r
+IO_WS_PAL_41   equ     0x29\r
+IO_WS_PAL_50   equ     0x2A\r
+IO_WS_PAL_51   equ     0x2B\r
+IO_WS_PAL_60   equ     0x2C\r
+IO_WS_PAL_61   equ     0x2D\r
+IO_WS_PAL_70   equ     0x2E\r
+IO_WS_PAL_71   equ     0x2F\r
+IO_WS_PAL_80   equ     0x30\r
+IO_WS_PAL_81   equ     0x31\r
+IO_WS_PAL_90   equ     0x32\r
+IO_WS_PAL_91   equ     0x33\r
+IO_WS_PAL_A0   equ     0x34\r
+IO_WS_PAL_A1   equ     0x35\r
+IO_WS_PAL_B0   equ     0x36\r
+IO_WS_PAL_B1   equ     0x37\r
+IO_WS_PAL_C0   equ     0x38\r
+IO_WS_PAL_C1   equ     0x39\r
+IO_WS_PAL_D0   equ     0x3A\r
+IO_WS_PAL_D1   equ     0x3B\r
+IO_WS_PAL_E0   equ     0x3C\r
+IO_WS_PAL_E1   equ     0x3D\r
+IO_WS_PAL_F0   equ     0x3E\r
+IO_WS_PAL_F1   equ     0x3F\r
+\r
+IOw_DMA_SRC    equ     0x40\r
+IO_DMA_SRC_BANK        equ     0x42\r
+IO_DMA_DST_BANK        equ     0x43\r
+IOw_DMA_DST    equ     0x44\r
+IOw_DMA_SIZE   equ     0x46\r
+IO_DMA_CTRL    equ     0x48\r
+DMA_START      equ     0x80\r
+DMA_CHECK      equ     0x80\r
+\r
+IOw_SNDDMA_SRC equ     0x4A\r
+IO_SNDDMA_BANK equ     0x4C\r
+IOw_SNDDMA_SIZE        equ     0x4E\r
+IO_SNDDMA_CTRL equ     0x52\r
+\r
+IO_VIDEO_MODE  equ     0x60\r
+VMODE_16C_CHK  equ     0xE0    ; 16 colors per tile chunky mode\r
+VMODE_16C_PLN  equ     0xC0    ; 16 colors per tile planar mode\r
+VMODE_4C       equ     0x40    ; 4 colors per tile color\r
+VMODE_4C_MONO  equ     0x00    ; 4 colors per tile mono\r
+VMODE_CLEANINIT        equ     0x0C    ; (?) from FF2\r
+\r
+IOw_AUDIO1_FREQ        equ     0x80    ; Frequency\r
+IOw_AUDIO2_FREQ        equ     0x82\r
+IOw_AUDIO3_FREQ        equ     0x84\r
+IOw_AUDIO4_FREQ        equ     0x86\r
+\r
+IO_AUDIO1_VOL  equ     0x88    ; Volume\r
+IO_AUDIO2_VOL  equ     0x89\r
+IO_AUDIO3_VOL  equ     0x8A\r
+IO_AUDIO4_VOL  equ     0x8B\r
+\r
+IO_AUDIO_SWEEP_VAL     equ     0x8C\r
+IO_AUDIO_SWEEP_STEP    equ     0x8D\r
+\r
+IO_AUDIO_NOISE_CTRL    equ     0x8E\r
+%define        NOISE_TYPE(a)   (a)\r
+NOISE_RESET            equ     0x08\r
+NOISE_ENABLE           equ     0x10\r
+\r
+IO_AUDIO_SAMPLE                equ     0x8F    ; Sample  location\r
+%define        AUDIO_SAMPLE(a) (a >> 6)\r
+\r
+IO_AUDIO_CTRL  equ     0x90\r
+AUDIO_1_ON     equ     0x01\r
+AUDIO_1_OFF    equ     0x00\r
+AUDIO_2_ON     equ     0x02\r
+AUDIO_2_OFF    equ     0x00\r
+AUDIO_3_ON     equ     0x04\r
+AUDIO_3_OFF    equ     0x00\r
+AUDIO_4_ON     equ     0x08\r
+AUDIO_4_OFF    equ     0x00\r
+AUDIO_2_VOICE  equ     0x20\r
+AUDIO_3_SWEEP  equ     0x40\r
+AUDIO_4_NOISE  equ     0x80\r
+\r
+IO_AUDIO_OUTPUT                equ     0x91\r
+AUDIO_OUT_MONO         equ     0x01\r
+AUDIO_OUT_STEREO       equ     0x08\r
+%define        AUDIO_OUT_VOLUME(a)     ((a & 0x03) << 1)\r
+\r
+IOw_AUDIO_NOISE_CNT    equ     0x92\r
+IO_AUDIO_VOLUME                equ     0x94    ; Global Volume (4 bits)\r
+\r
+IO_HARDWARE_TYPE       equ     0xA0\r
+WS_COLOR               equ     0x02\r
+WS_MONO                        equ     0x00\r
+\r
+IO_TIMER_CTRL                  equ     0xA2\r
+HBLANK_TIMER_ON                        equ     0x01\r
+HBLANK_TIMER_OFF               equ     0x00\r
+HBLANK_TIMER_MODE_ONESHOT      equ     0x00\r
+HBLANK_TIMER_MODE_AUTOPRESET   equ     0x02\r
+VBLANK_TIMER_ON                        equ     0x04\r
+VBLANK_TIMER_OFF               equ     0x00\r
+VBLANK_TIMER_MODE_ONESHOT      equ     0x00\r
+VBLANK_TIMER_MODE_AUTOPRESET   equ     0x08\r
+\r
+IOw_HBLANK_FREQ        equ     0xA4\r
+IOw_VBLANK_FREQ        equ     0xA6\r
+\r
+IO_HBLANK_CNT1 equ     0xA8    ; Hblank Counter - 1/12000s\r
+IO_HBLANK_CNT2 equ     0xA9    ; Hblank Counter - 1/(12000>>8)s\r
+IO_VBLANK_CNT1 equ     0xAA    ; Vblank Counter - 1/75s\r
+IO_VBLANK_CNT2 equ     0xAB    ; Vblank Counter - 1/(75>>8)s\r
+\r
+IO_INT_BASE    equ     0xB0\r
+INT_BASE       equ     0x20\r
+\r
+IO_COMM_DATA   equ     0xB1    ; Communication byte\r
+\r
+IO_INT_ENABLE          equ     0xB2\r
+INT_HBLANK_TIMER       equ     0x80\r
+INT_VBLANK_START       equ     0x40\r
+INT_VBLANK_TIMER       equ     0x20\r
+INT_DRAWING_LINE       equ     0x10\r
+INT_SERIAL_RECEIVE     equ     0x08\r
+INT_RTC_ALARM          equ     0x04\r
+INT_KEY_PRESS          equ     0x02\r
+INT_SERIAL_SEND                equ     0x01\r
+\r
+IO_COMM_DIR            equ     0xB3    ; Communication direction\r
+COMM_RECEIVE_INT_GEN   equ     0x80\r
+COMM_SPEED_9600                equ     0x00\r
+COMM_SPEED_38400       equ     0x40\r
+COMM_SEND_INT_GEN      equ     0x20\r
+COMM_SEND_COMPLETE     equ     0x04\r
+COMM_ERROR             equ     0x02\r
+COMM_RECEIVE_COMPLETE  equ     0x01\r
+\r
+IO_KEYPAD              equ     0xB5\r
+KEYPAD_READ_ARROWS_V   equ     0x10\r
+KEYPAD_READ_ARROWS_H   equ     0x20\r
+KEYPAD_READ_BUTTONS    equ     0x40\r
+PAD_UP                 equ     0x01\r
+PAD_RIGHT              equ     0x02\r
+PAD_DOWN               equ     0x04\r
+PAD_LEFT               equ     0x08\r
+PAD_START              equ     0x02\r
+PAD_A                  equ     0x04\r
+PAD_B                  equ     0x08\r
+\r
+IO_INT_ACK             equ     0xB6    ; See IO_INT_ENABLE equates for values\r
+\r
+IOw_INTERNAL_EEPROM_DATA       equ     0xBA\r
+IOw_INTERNAL_EEPROM_ADDRESS    equ     0xBC\r
+\r
+IOw_INTERNAL_EEPROM_CTRL       equ     0xBE\r
+IEEPROM_INIT                   equ     0x80\r
+IEEPROM_PROTECT                        equ     0x40\r
+IEEPROM_WRITE                  equ     0x20\r
+IEEPROM_READ                   equ     0x10\r
+IEEPROM_WRITE_COMPLETE         equ     0x02\r
+IEEPROM_READ_COMPLETE          equ     0x01\r
+\r
+IO_ROM_BASE_BANK       equ     0xC0\r
+IO_SRAM_BANK           equ     0xC1\r
+IO_ROM_BANK_SEGMENT2   equ     0xC2\r
+IO_ROM_BANK_SEGMENT3   equ     0xC3\r
+\r
+IO_RTC_COMMAND         equ     0xCA\r
+RTC_COMMAND_RESET      equ     0x10\r
+RTC_COMMAND_ALARM      equ     0x12\r
+RTC_COMMAND_SET_TIME   equ     0x14\r
+RTC_COMMAND_GET_TIME   equ     0x15\r
+RTC_COMMAND_ACK                equ     0x80\r
+\r
+IO_RTC_DATA    equ     0xCB\r

diff --git a/inc/init.inc b/inc/init.inc
new file mode 100644 (file)
index 0000000..dce53da
--- /dev/null
+++ b/inc/init.inc
@@ -0,0 +1,15 @@
+WS_RAM_BASE     equ     0x0000
+WS_TILE_BANK    equ     0x2000
+WS_STACK        equ     WS_TILE_BANK-2
+
+WSC_TILE_BANK1  equ     0x4000
+WSC_TILE_BANK2  equ     0x8000
+WSC_RAM_BASE2   equ     0xC000
+WSC_PALETTES    equ     0xFE00
+WSC_STACK       equ     WSC_PALETTES-2
+
+MAP_SIZE        equ     0x800
+SPR_TABLE_SIZE  equ     0x200
+
+IO_HARDWARE_TYPE       equ     0xA0
+WS_COLOR               equ     0x02

diff --git a/src/init.s b/src/init.s
new file mode 100644 (file)
index 0000000..f546c3e
--- /dev/null
+++ b/src/init.s
@@ -0,0 +1,48 @@
+;; File              : init.s
+;; Author            : Robin Krens <robin@robinkrens.nl>
+;; Date              : 02.06.2022
+;; Last Modified Date: 02.06.2022
+;; Last Modified By  : Robin Krens <robin@robinkrens.nl>
+
+       ;;org 0x0000
+       cpu 186
+       bits 16
+
+extern _main
+
+section .data
+       %include "init.inc"  
+
+section .text
+
+init:
+       cli                     ; disable interrupts
+       cld                     ; offset in increment mode
+       
+       xor     ax,ax           ; clear all registers
+       mov     bx,ax
+       mov     cx,ax
+       mov     dx,ax
+       mov     si,ax
+       mov     di,ax
+       mov     ds,ax           ; clear Segments
+       mov     es,ax
+       
+       mov     bp,ax           ; setup stack
+       mov     ss,ax
+       mov     sp,WS_STACK
+       
+       in      al,IO_HARDWARE_TYPE     ; check wonderswan mono or color
+       test    al,WS_COLOR
+.mono:  jz      .mono           ;loop forever if mono
+
+        mov     sp,WSC_STACK    ; new stack
+
+clear_ram:
+        xor     ax,ax           ; clear Ram
+        mov     di,0x100
+        mov     cx,0x7E80
+        rep     stosw
+
+       ; call to _main
+       call    _main

diff --git a/src/main.c b/src/main.c
new file mode 100644 (file)
index 0000000..f37cfc4
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,4 @@
+int main()
+{
+       return 1;
+}